NZ618639B2 - Use of anti-cgrp or anti-cgrp-r antibodies or antibody fragments to treat or prevent chronic and acute forms of diarrhea - Google Patents
Use of anti-cgrp or anti-cgrp-r antibodies or antibody fragments to treat or prevent chronic and acute forms of diarrhea Download PDFInfo
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- NZ618639B2 NZ618639B2 NZ618639A NZ61863912A NZ618639B2 NZ 618639 B2 NZ618639 B2 NZ 618639B2 NZ 618639 A NZ618639 A NZ 618639A NZ 61863912 A NZ61863912 A NZ 61863912A NZ 618639 B2 NZ618639 B2 NZ 618639B2
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Abstract
Disclosed the use of an anti-CGRP antibody or anti-CGRP antibody fragment or an anti-CGRP (CGRP-R) receptor antibody or an anti-CGRP-R antibody fragment in the manufacture of a medicament for inhibiting, preventing or treating diarrhea or dysentery and/or maintaining appropriate electrolyte and fluid levels in the colon of a subject having diarrhea or dysentery. d levels in the colon of a subject having diarrhea or dysentery.
Description
USE OF ANTI-CGRP OR ANTI-CGRP-R ANTIBODIES
OR ANTIBODY FRAGMENTS TO TREAT OR
PREVENT CHRONIC AND ACUTE FORMS OF DIARRHEA
RELATED APPLICATIONS
This application claims the benefit of U.S. Provisional Application No. 61/496,873
(Atty. Docket No. 67858.770000) filed June 14, 2011, entitled "USE OF ANTI-CGRP
ANTIBODIES AND ANTIBODY FRAGMENTS TO TREAT DIARRHEA IN
SUBJECTS WITH DISEASES OR TREATMENTS THAT RESULT IN ELEVATED
CGRP LEVELS" and U.S. Provisional Application No. 61/488,660 (Atty. Docket No.
67858.730300) filed May 20, 2011, entitled "ANTI-CGRP COMPOSITIONS AND USE
THEREOF" each of which is hereby incorporated by reference in its entirety.
The reader’s attention is also directed to our related divisional, New Zealand
patent application 717704.
The instant application contains a Sequence Listing which has been submitted in
ASCII format via EFS-Web and is hereby incorporated by reference in its entirety. Said
ASCII copy, created on May 18, 2012, is named 67858o730304.txt and is 203,920 bytes in
size.
BACKGROUND OF THE INVENTION
Field of the Invention
This invention pertains to the discovery that polypeptides that bind to CGRP or
CGRP receptor and/or other polypeptides which inhibit the CGRP/CGRP receptor
interaction such as anti-CGRP or anti-CGRP receptor antibodies and antibody fragments or
fragments of CGRP or the CGRP receptor which inhibit the CGRP/CGRP receptor
interaction may be used to treat or prevent diarrhea, especially diarrhea associated with
conditions or treatments that result in increased levels of CGRP. Exemplary conditions and
treatments involving increased CGRP are identified herein. In particular, described are
methods of inhibiting, preventing or treating diarrhea and/or maintaining electrolyte
balance and fluid levels in the colon of a subject having a condition or treatment associated
with elevated CGRP levels that result in diarrhea and/or increased flux of electrolytes and
fluids from the colon comprising administering an effective amount of an anti-CGRP
antibody or anti-CGRP antibody fragment. Exemplary conditions include by way of
example functional bowel disorder and inflammatory bowel diseases, bacterial or viral
infections, and more specifically gastro-esophageal reflux, dyspepsia, irritable bowel
syndrome, functional abdominal pain syndrome, diverticulosis, and diverticulitis, Crohn's
disease, ileitis, collagenous colitis, lymphocytic colitis, ulcerative colitis, cancers or cancer
treatments associated with increased CGRP and diarrhea such as chemotherapy, radiation,
medullary thyroid carcinoma, and colorectal cancer.
Further described are methods of screening polypeptides such as anti-CGRP or anti-
CGRP receptor antibodies and fragments thereof (including Fab fragments) having binding
specificity to human Calcitonin Gene Related Peptide (hereinafter “CGRP”) as well as
fragments of CGRP or a CGRP receptor in animal models to determine the in vivo effects
thereof, especially their ability to antagonize the adverse side effects of CGRP and to treat
conditions involving excess CGRP, especially CGRP associated conditions or treatments
associated with diarrhea. Also described are methods of screening for diseases and
disorders associated with increased CGRP, which are associated with diarrhea and specific
therapeutic regimens for preventing or treating diseases and disorders that involve CGRP
associated diarrhea by administering said antibodies or fragments thereof, alone or in
association with other actives.
Description of Related Art
Calcitonin Gene Related Peptide (CGRP) is produced as a multifunctional
neuropeptide of 37 amino acids in length. Two forms of CGRP, the CGRP-alpha and
CGRP-beta forms, exist in humans and have similar activities. CGRP-alpha and CGRP-
beta differ by three amino acids in humans, and are derived from different genes. The
CGRP family of peptides includes amylin, adrenomedullin, and calcitonin, although each
has distinct receptors and biological activities. Doods, H., Curr. Op. Invest. Drugs,
2(9):1261-68 (2001).
CGRP is released from numerous tissues such as trigeminal nerves, which when
activated release neuropeptides within the meninges, mediating neurogenic inflammation
that is characterized by vasodilation, vessel leakage, and mast-cell degradation. Durham,
P.L., New Eng. J. Med., 350 (11):1073-75 (2004). The biological effects of CGRP are
mediated via the CGRP receptor (CGRP-R), which consists of a seven-transmembrane
component, in conjunction with receptor-associated membrane protein (RAMP). CGRP-R
further requires the activity of the receptor component protein (RCP), which is essential for
an efficient coupling to adenylate cyclase through G proteins and the production of cAMP.
Doods, H., Curr. Op. Invest. Drugs, 2(9):1261-68 (2001).
Migraines are neurovascular disorder affecting approximately 10% of the adult
population in the U.S., and are typically accompanied by intense headaches.
Approximately 20-30% of migraine sufferers experience aura, comprising focal
neurological phenomena that precede and/or accompany the event. CGRP is believe to
play a prominent role in the development of migraines. For example, plasma
concentrations of CGRP were identified elevated in jugular venous blood during the
headache phase of migraines, to the exclusion of other neuropeptides. Moreover,
according to Arulmozhi et al, the following has been identified in migraine sufferers: (1) a
strong correlation between plasma CGRP concentrations and migraines; (2) the infusion of
CGRP produced a migraine-like headache; (3) baseline CGRP levels were elevated; and (4)
changes in plasma CGRP levels during migraine attacks significantly correlated with
headache intensity. Arulmozhi, D.K., et al., Vas. Pharma., 43: 176-187 (2005). In addition,
in the Journal of the International Association for the Study of Pain PII:S0304-
3959(11)00313-7; doi:10.1016/j.pain.2011.04.033, published online 06 June 2011, Hou et
al., reported that keratinocyte expression of calcitonin gene-related peptide β has
implications for neuropathic and inflammatory pain mechanisms.
One effective treatment for migraines is the administration of triptans, which are a
family of tryptamine-based drugs, including sumatriptan and rizatriptan. Members of this
family have an affinity for multiple serotonin receptors, including 5-HT , 5-HT , and 5-
1B 1D
HT . Members of this family of drugs selectively constrict cerebral vessels, but also cause
vasoconstrictive effects on coronary vessels. Durham, P.L., New Eng. J. Med., 350
(11):1073-75 (2004). There is a theoretical risk of coronary spasm in patients with
established heart disease following administration, and cardiac events after taking triptans
may rarely occur. Noted to be contraindicated for patients with coronary vascular disease.
Similarly, pain may often be addressed through the administration of certain
narcotics or non-steroidal anti-inflammatory drugs (NSAIDs). However, the
administration of these treatments may occur at the cost of certain negative consequences.
NSAIDs have the potential to cause kidney failure, intestinal bleeding, and liver
dysfunction. Narcotics have the potential to cause nausea, vomiting, imparied mental
functioning, and addiction. Therefore, it is desirable to identify alternative treatments for
pain in order to avoid certain of these negative consequences.
CGRP is believed to play a role in a multitude of diseases and disorders,
including but not limited to migraines, headaches, and pain. Due to the perceived
involvement of CGRP in these diseases and disorders, there remains a need in the art for
compositions and methods useful for preventing or treating diseases and disorders
associated with CGRP, while avoiding adverse side effects. There especially remains a
need in the art for compositions or methods that reduce or inhibit diseases or disorders
associated with CGRP, such as migraines, headaches, and pain.
Aside from the afore-mentioned conditions there is a need for treating other
conditions or adverse side effects that are associated with increased CGRP. In this regard
there has been some anecdotal evidence reported in the literature which suggest that
increases in CGRP levels may have a role in some diseases associated with diarrhea. For
example, it was reported by Rolston et al. in Digestive Diseases and Sciences , (April 1989)
34(4):612-6, “Intravenous calcitonin gene-related peptide stimulates net water secretion in
rat colon in vivo” that exogenous calcitonin gene-related peptide has an effect on net flux
of water and electrolytes in the rat small and large intestine. They report that in ligated
intestinal loops, intravenous calcitonin gene-related peptide (CGRP) induced colonic fluid
secretion but had no effect on the small intestine. Also they report using a single-pass
perfusion technique, that they observed an immediate dose-dependent secretion of water by
the rat colon upon intravenous administration of CGRP and also that the net secretion of
sodium, potassium, and chloride were also raised. They suggest the implications of these
observations for the possible involvement of high circulation concentrations of CGRP in
the watery diarrhea syndrome accompanying medullary thyroid carcinoma.
Further, it was reported by Keates et al., Gastroenterology 114:956-64(1998),
“CGRP Upregulation in dorsal root ganglia and ilea mucosa during Clostridium difficile
toxin A-induced enteritis in mice” that CGRP may play a role in toxin-A mediated diarrhea
and that a CGRP antagonist substantially inhibited toxin-A mediated diarrhea and
inflammation.
In addition, Picard et al. reported in International Journal of Radiation Biology ,
(2001), Vol. 77, No. 3, pp. 349-356 , “Presence of protective role of afferent nerves in early
intestinal mucosal alterations induced by abdominal irradiation in rats” that CGRP levels
increase after abdominal irradiation and particularly in radiation enteritis a condition
characterized by diarrhea and other inflammatory reactions.
[00013A] In this specification where reference has been made to patent specifications,
other external documents, or other sources of information, this is generally for the purpose
of providing a context for discussing the features of the invention. Unless specifically
stated otherwise, reference to such external documents is not to be construed as an
admission that such documents, or such sources of information, in any jurisdiction, are
prior art, or form part of the common general knowledge in the art.
[00013B] In the description in this specification reference may be made to subject
matter that is not within the scope of the claims of the current application. That subject
matter should be readily identifiable by a person skilled in the art and may assist in putting
into practice the invention as defined in the claims of this application.
SUMMARY OF THE INVENTION
[00013C] The invention relates to the use of an anti-CGRP antibody or anti-CGRP
antibody fragment or an anti-CGRP (CGRP-R) receptor antibody or an anti-CGRP-R
antibody fragment in the manufacture of a medicament for inhibiting, preventing or
treating diarrhea or dysentery and/or maintaining appropriate electrolyte and fluid levels in
the colon of a subject having diarrhea or dysentery.
BRIEF DESCRIPTION OF THE INVENTION
Aside from being uncomfortable to the afflicted individual, diarrhea, especially
if chronic or severe can be life threatening especially in geriatric patients and infants and
young children as well as patients with diseases such as cancer and viral infection
associated with chronic diarrhea that can substantially deplete fluid and electrolyte levels.
There are 2 general types of diarrhea, acute and chronic.
Diarrhea is generally classified as a condition of having three or more loose or
liquid bowel movements per day. It is a common cause of death in developing countries
and the second most common cause of infant deaths worldwide. The loss of fluids through
diarrhea can cause dehydration and electrolyte imbalances. In 2009 diarrhea was estimated
to have caused 1.1 million deaths in people aged 5 and over and 1.5 million deaths in
children under the age of 5. Oral rehydration solutions (ORS) with modest amounts of
electrolytes and zinc tablets are the treatment of choice and have been estimated to have
saved 50 million children in the past 25 years. ORS should be begun at early as possible.
Vomiting does often occurs during the first hour or two of treatment with ORS, but this
seldom prevents successful rehydration as most of the fluid is still absorbed. The World
Health Organization (WHO) recommends that if a child vomits, to wait five or ten minutes
and then start again more slowly.
Homemade solutions recommended by WHO include salted drinks (e.g. salted
rice water or a salted yoghurt drink) and vegetable or chicken soup with salt. If available,
supplemental potassium, as well as supplemental zinc, can be added to or given with this
homemade solution. It is s also recommended that persons with diarrhea, if able, continue
or resume eating as this speeds recovery of normal intestinal function and generally leads
to diarrhea of shorter duration. Clean plain water can be one of several fluids given. There
are commercial solutions such as Pedialyte, and relief agencies such as UNICEF widely
distribute packets of salts and sugar.
Aside from the chronic and acute designations of diarrhea, this condition is also
classified into different types which classifications are based on the cause and disease
manifestations. One type is “secretory diarrhea”. Secretory diarrhea means that there is an
increase in the active secretion, or there is an inhibition of absorption. There is little to no
structural damage. The most common cause of this type of diarrhea is a cholera toxin that
stimulates the secretion of anions, especially chloride ions. In this type of diarrhea
intestinal fluid secretion is isotonic with plasma even during fasting.[8] <> It continues
even when there is no oral food intake.
A second type is “osmotic diarrhea”. Osmotic diarrhea may occur when too
much water is drawn into the bowels. If a person drinks solutions with excessive sugar or
excessive salt, these can draw water from the body into the bowel and cause osmotic
diarrhea. Also, osmotic diarrhea can also be the result of maldigestion (e.g., pancreatic
disease or Coeliac disease), in which the nutrients are left in the lumen to pull in water. Or
it can be caused by osmotic laxatives (which work to alleviate constipation by drawing
water into the bowels). In healthy individuals, too much magnesium or vitamin C or
undigested lactose can produce osmotic diarrhea and distention of the bowel. A person who
has lactose intolerance can have difficulty absorbing lactose after an extraordinarily high
intake of dairy products. In persons who have fructose malabsorption, excess fructose
intake can also cause diarrhea. High-fructose foods that also have a high glucose content
are more absorbable and less likely to cause diarrhea. Sugar alcohols such as sorbitol (often
found in sugar-free foods) are difficult for the body to absorb and, in large amounts, may
lead to osmotic diarrhea.
A third type of diarrhea is exudative diarrhea”. Exudative diarrhea occurs with
the presence of blood and pus in the stool. This occurs with inflammatory bowel diseases,
such as Crohn's disease or ulcerative colitis, and infections such as E. coli or other forms of
food poisoning.
A fourth type of diarrhea is “motility-related diarrhea”. Motility-related diarrhea
is caused by the rapid movement of food through the intestines (hypermotility). If the food
moves too quickly through the gastrointestinal tract, there is not enough time for sufficient
nutrients and water to be absorbed. This can be due to a vagotomy or diabetic neuropathy,
or a complication of menstruation. Hyperthyroidism can produce hypermotility and lead to
this type of diarrhea. Diarrhea can be treated with antimotility agents (such as loperamide).
Hypermotility can be observed in people who have had portions of their bowel removed,
allowing less total time for absorption of nutrients.
A fifth type of diarrhea is “is “inflammatory diarrhea is ”. Inflammatory
diarrhea occurs when there is damage to the mucosal lining or brush border, which leads to
a passive loss of protein-rich fluids, and a decreased ability to absorb these lost fluids.
Features of all three of the other types of diarrhea can be found in this type of diarrhea. It
can be caused by bacterial infections, viral infections, parasitic infections, or autoimmune
problems such as inflammatory bowel diseases. It can also be caused by tuberculosis, colon
cancer, and enteritis.
A related condition to diarrhea is “dysentery”. Generally, if there is blood
visible in the stools, it is not diarrhea, but dysentery. The blood is trace of an invasion of
bowel tissue. Dysentery is a symptom of, among others, Shigella, Entamoeba histolytica,
and Salmonella.
Diarrhea is most commonly due to viral gastroenteritis with rotavirus, which
accounts for 40% of cases in children under five. In travelers however bacterial infections
predominate. Various toxins such as mushroom poisoning and drugs can also cause acute
diarrhea.
As noted above, diarrhea may be classified as chronic or acute. “Chronic
diarrhea can be the part of the presentations of a number of chronic medical conditions
affecting the intestine. Common causes include ulcerative colitis, Crohn's disease,
microscopic colitis, celiac disease, irritable bowel syndrome and bile acid malabsorption.
There are many causes of infectious diarrhea, which include viruses, bacteria and
parasites. Norovirus is the most common cause of viral diarrhea in adults, but rotavirus is
the most common cause in children under five years old. Adenovirus types 40 and 41, and
astroviruses cause a significant number of infections.
The bacterium Campylobacter is a common cause of bacterial diarrhea, but
infections by Salmonellae, Shigellae and some strains of Escherichia coli (E.coli) are
frequent. In the elderly, particularly those who have been treated with antibiotics for
unrelated infections, a toxin produced by Clostridium difficile often causes severe diarrhea.
Some parasites may cause diarrhea such as the protozoan Giardia, which can
cause chronic infections if these are not diagnosed and treated with drugs such as
metronidazole, and Entamoeba histolytica.
Other causes of chronic diarrhea include:enzyme deficiencies or mucosal
abnormality, as in food allergy and food intolerance, e.g. celiac disease (gluten
intolerance), lactose intolerance (intolerance to milk sugar, common in non-Europeans),
and fructose malabsorption, pernicious anemia, or impaired bowel function due to the
inability to absorb vitamin B12, loss of pancreatic secretions, which may be due to cystic
fibrosis or pancreatitis, structural defects, like short bowel syndrome (surgically removed
bowel) and radiation fibrosis, such as usually follows cancer treatment and other drugs,
including agents used in chemotherapy; and certain drugs, like orlistat, which inhibits the
absorption of fat.
Ulcerative colitis is marked by chronic bloody diarrhea and inflammation mostly
affects the distal colon near the rectum. Crohn's disease typically affects fairly well
demarcated segments of bowel in the colon and often affects the end of the small bowel.
Another cause of diarrhea is irritable bowel syndrome (IBS) which usually
presents with abdominal discomfort relieved by defecation and unusual stool (diarrhea or
constipation) for at least 3 days a week over the previous 3 months. Symptoms of diarrhea-
predominant IBS can be managed through a combination of dietary changes, soluble fiber
supplements, and/or medications such as loperamide or codeine. About 30% of patients
with diarrhea-predominant IBS have bile acid malabsorption diagnosed with an abnormal
SeHCAT test.
Other causes of diarrhea are chronic ethanol ingestion, ichemic bowel disease,
mcroscopic colitis, ble salt malabsorption (primary bile acid diarrhea) where excessive bile
acids in the colon produce a secretory diarrhea, hrmone-secreting tumors, (some hormones
(e.g., serotonin) can cause diarrhea if excreted in excess (usually from a tumor)).
Medications such as loperamide (Imodium) and bismuth subsalicylate may be
beneficial in treating some diarrhea conditions, however they may be contraindicated in
certain situations.
While antibiotics are beneficial in certain types of acute diarrhea, they are
usually not used except in specific situations. In fact, antibiotics can also cause diarrhea,
and antibiotic-associated diarrhea is the most common adverse effect of treatment with
general antibiotics.
Bismuth compounds such as in (Pepto-Bismol) may be used to treat some
diarrhea conditions. Also, anti motility agents may be used to treat some diarrhea
conditions. These include loperamide. Codeine is sometimes used in the treatment of
diarrhea to slow down peristalsis and the passage of fecal material through the bowels.
Also, bile acid sequestrants such as cholestyramine, colestipol and colesevelam can be
effective in chronic diarrhea due to bile acid malabsorption.
Zinc supplementation may be used to treat some chronic diarrhea conditions.
Probiotics may sometimes be used to reduce the duration of symptoms.
As mentioned, a second type of diarrhea is acute diarrhea. The most common
cause of acute diarrhea is infection--viral, bacterial, and parasitic. Bacteria also can cause
acute food poisoning. A third important cause of acute diarrhea is starting a new
medication.
Other specific causes of acute diarrhea include viral gastroenteritis which is the
most common cause of acute diarrhea worldwide. Viral gastroenteritis can occur in a
sporadic form (in a single individual) or in an epidemic form (among groups of
individuals). Sporadic diarrhea probably is caused by several different viruses and is
believed to be spread by person-to-person contact. The most common cause of epidemic
diarrhea (for example, on cruise ships) is infection with a family of viruses known as
caliciviruses of which the genus norovirus is the most common (for example, "Norwalk
agent"). The caliciviruses are transmitted by food that is contaminated by sick food-
handlers or by person-to-person contact.
Another cause of acute diarrhea is food poisoning caused by toxins produced by
bacteria. The toxins cause abdominal pain (cramps) and vomiting and also cause the small
intestine to secrete large amounts of water that leads to diarrhea. The symptoms of food
poisoning usually last less than 24 hours. With some bacteria, the toxins are produced in
the food before it is eaten, while with other bacteria, the toxins are produced in the intestine
after the food is eaten.
Staphylococcus aureus is an example of a bacterium that produces toxins in food
before it is eaten. Typically, food contaminated with Staphylococcus (such as salad, meat
or sandwiches with mayonnaise) is left un-refrigerated at room temperature overnight. The
Staphylococcal bacteria multiply in the food and produce toxins. Clostridium perfringens is
an example of a bacterium that multiplies in food (usually canned food), and produces
toxins in the small intestine after the contaminated food is eaten.
Another cause of acute diarrhea is traveler's diarrhea usually caused by
pathogenic strains of E. coli bacteria. Occasionally, other bacteria or parasites can cause
diarrhea in travelers (for example, Shigella, Giardia, Campylobacter). Diarrhea caused by
these other organisms usually lasts longer than 3 days.
Yet another cause of acute diarrhea is bacterial enterocolitis which occurs when
disease-causing bacteria usually invade the small intestines and colon and cause
enterocolitis (inflammation of the small intestine and colon). Bacterial enterocolitis is
characterized by signs of inflammation (blood or pus in the stool, fever) and abdominal
pain and diarrhea. Campylobacter jejuni is the most common bacterium that causes acute
enterocolitis in the U.S. Other bacteria that cause enterocolitis include Shigella,
Salmonella, and EPEC. These bacteria usually are acquired by drinking contaminated
water or eating contaminated foods such as vegetables, poultry, and dairy products.
Enterocolitis caused by the bacterium Clostridium difficile is often is caused by
antibiotic treatment. Clostridium difficile is also the most common nosocomial infection
(infection acquired while in the hospital) to cause diarrhea. Unfortunately, infection also is
increasing among individuals who have neither taken antibiotics or been in the hospital.
Another cause of acute diarrhea is E. coli O157:H7 which is a strain of E. coli
that produces a toxin that causes hemorrhagic enterocolitis (enterocolitis with bleeding).
There was a famous outbreak of hemorrhagic enterocolitis in the U.S. traced to
contaminated ground beef in hamburgers (hence it is also called hamburger colitis).
Approximately 5% of patients infected with E. coli O157:H7, particularly children, can
develop hemolytic uremic syndrome (HUS), a syndrome that can lead to kidney failure .
Some evidence suggests that prolonged use of anti-diarrhea agents or use of antibiotics
may increase the chance of developing HUS.
Still anther cause of acute diarrhea is parasite infection, more common outside of
the U. S. For example, infection with Giardia lamblia occurs among individuals who hike
in the mountains or travel abroad and is transmitted by contaminated drinking water.
Cryptosporidium is another diarrhea-producing parasite that is typically spread by
contaminated water.
Yet anther cause of acute diarrhea is drug-induced diarrhea. The medications
that most frequently cause diarrhea are antacids and nutritional supplements that contain
magnesium. Other classes of medication that cause diarrhea include: nonsteroidal anti-
inflammatory drugs (NSAIDs), chemotherapy medications, antibiotics, medications to
control irregular heartbeats (antiarrhythmics), and medications for high blood pressure.
misoprostol (Cytotec), quinidine (Quinaglute, Quinidex), olsalazine (Dipentum), colchicine
(Colchicine), metoclopramide (Reglan), and cisapride (Propulsid, Motilium).
Common causes of chronic diarrhea include irritable bowel syndrome. infectious
diseases such as Giardia lamblia, AIDS infection, bacterial overgrowth of the small
intestine, .post-infectious diarrhea wherein individuals following acute viral, bacterial or
parasitic infections develop chronic diarrhea (also referred to as post-infectious IBS),
inflammatory bowel disease (IBD), Crohn's disease and ulcerative colitis, and other
diseases causing inflammation of the small intestine and/or colon, commonly cause chronic
diarrhea, colon cancer, particularly in the distal part of the colon, can lead to thin stools.
severe constipation, carbohydrate (sugar) malabsorption. such as lactase deficiency (also
known as lactose or milk intolerance), fat malabsorption pancreatitis or pancreatic cancer,
diseases of the lining of the small intestine that prevent the absorption of digested fat such
as celiac disease, endocrine diseases such as hyperthyroidism or an under-active pituitary
or adrenal gland (Addison's disease) and laxative abuse.
Both acute and chronic diarrhea may involve adverse complications including
dehydration resulting from an excessive loss of fluids and electrolytes from the body due to
diarrhea. Dehydration is common among adult patients with acute diarrhea who have large
amounts of stool, particularly when the intake of fluids is limited by lethargy or is
associated with nausea and vomiting and is common in infants and young children who
develop viral gastroenteritis or bacterial infection.
Moderate to severe dehydration may cause orthostatic hypotension with syncope
(fainting upon standing due to a reduced volume of blood, which causes a drop in blood
pressure upon standing), a diminished urine output, severe weakness, shock, kidney failure,
confusion, acidosis (too much acid in the blood), and even coma.
Electrolytes (minerals) also are lost with water when diarrhea is prolonged or
severe, and mineral or electrolyte deficiencies may occur. The most common deficiencies
occur with sodium and potassium. Abnormalities of chloride and bicarbonate also may
develop. Finally, there may be irritation of the anus due to the frequent passage of watery
stool containing irritating substances.
Accordingly, an effective method of preventing or treating different forms of
diarrhea such as are above-described, and in particular acute or chronic diarrhea would be
beneficial. It is an object of the present invention to use an anti-CGRP antibody or anti-
CGRP antibody fragment or an anti-CGRP (CGRP-R) receptor antibody or an anti-CGRP-
R antibody fragment in the manufacture of a medicament for inhibiting, preventing or
treating diarrhea or dysentery and/or maintaining appropriate electrolyte and fluid levels in
the colon of a subject having diarrhea or dysentery; and/or to at least provide the public
with a useful choice.
Described herein are methods and medicaments for treating or preventing CGRP
associated diarrhea comprising the administration of at least one polypeptide that binds
CGRP or the CGRP receptor and/or a polypeptide which inhibits the CGRP/CGRP receptor
interaction. These polypeptides include anti-CGRP or anti-CGRP receptor antibodies and
antibody fragments, and fragments or variants of CGRP or the CGRP receptor which
inhibit the CGRP/CGRP receptor interaction. These therapies effectively treat or prevent
diarrhea, especially diarrhea that occurs as a result of disease conditions or treatments
associated with increased levels of CGRP, e.g. increased levels in the gastrointestinal
system and more particularly the colon.
In particular, described are methods of inhibiting, preventing or treating diarrhea
and/or maintaining electrolyte balance and fluid levels in the colon of a subject having a
condition (e.g., gastrointestinal condition, cancer, viral or infectious disorder) or treatments
associated resulting in elevated CGRP levels (such as radiation or chemotherapy) that
result in diarrhea and/or increased flux of electrolytes and fluids from the colon comprising
administering an effective amount of an anti-CGRP antibody or anti-CGRP antibody
fragment. These conditions include by way of example functional bowel disorders and
inflammatory bowel diseases, bacterial or viral induced diarrhea, radiation and
chemotherapies and more specifically functional bowel disorders selected from the group
consisting of gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, functional
abdominal pain syndrome, diverticulosis, and diverticulitis, inflammatory bowel diseases
selected from the group consisting of Crohn's disease, ileitis, collagenous colitis,
lymphocytic colitis, and ulcerative colitis, and cancers associated with diarrhea such as
medullary thyroid carcinoma, and colorectal cancer.
Also described are methods of screening antibodies and fragments thereof
(including Fab fragments) having binding specificity to human Calcitonin Gene Related
Peptide (hereinafter “CGRP”) or the CGRP receptor or which inhibit the CGRP/CGRP
receptor interaction in animal models to determine the in vivo effects thereof, especially
their ability to antagonize the adverse side effects of CGRP and to treat or prevent diarrhea
in conditions or treatments involving excess CGRP.
Also described is a method of assessing the potential in vivo efficacy of a
candidate anti-CGRP antibody or antibody fragment or another polypeptide that inhibits
the CGRP/CGRP receptor interaction for treating or preventing diarrhea comprising
determining whether the antibody or other polypeptide inhibits diarrhea in a rodent
administered exogenous CGRP compared to a rodent administered CGRP in the absence of
the candidate CGRP antibody or antibody fragment or other polypeptide inhibitor.
Also, described is a method of administering an anti-CGRP or anti-CGRP
receptor antibody or antibody fragment or another polypeptide that inhibits the
CGRP/CGRP receptor interaction to treat neurological and pain conditions characterized
by increased CGRP levels which are associated with diarrhea.
Also described are medicaments for treating a condition associated with diarrhea
selected from gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, functional
abdominal pain syndrome, diverticulosis, diverticulitis, Crohn's disease, ileitis, collagenous
colitis, lymphocytic colitis, and ulcerative colitis, medullary thyroid carcinoma or a
colorectal cancer.
Further described are methods of assessing based on results in a rodent CGRP
animal model a suitable therapeutic dosage or dosage regimen of the candidate antibody or
antibody fragment in humans for preventing or treating CGRP associated diarrhea.
Still further described are compositions for inhibiting, preventing or treating
diarrhea and/or maintaining electrolyte balance and fluid levels in the colon of a subject
having a condition associated with elevated CGRP levels that result in diarrhea and/or
increased flux of electrolytes and fluids from the colon comprising an effective amount of
an anti-CGRP or anti-CGRP receptor antibody or anti-CGRP or anti-CGRP receptor
antibody fragment and optionally another active agent.
Also described are compositions for treating or preventing functional bowel
disorders or an inflammatory bowel diseases, bacterial or viral induced diarrhea, cancer
associated with diarrhea, such as medullary thyroid carcinoma or a colorectal cancer, and
functional bowel disorders or inflammatory bowel diseases, including by way of example
gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, functional abdominal pain
syndrome, diverticulosis, and diverticulitis or inflammatory bowel disease is selected from
the group consisting of Crohn's disease, ileitis, collagenous colitis, lymphocytic colitis, and
ulcerative colitis. wherein these therapies administer an effective amount of an anti-CGRP
antibody or antibody fragment which is administered as a monotherapy or in combination
with another active agent. .
In preferred embodiments the present invention is directed to therapeutic usage
of medicaments of specific antibodies and fragments thereof for treatment or prevention of
diarrhea in diseases or treatments associated with in increased levels of CGRP, said
antibodies or antibody fragments having binding specificity for CGRP, in particular
antibodies having desired epitopic specificity, high affinity or avidity and/or functional
properties. In other preferred embodiments the uses of this invention, and assays described
of the antibodies described herein, comprising the sequences of the V , V and CDR
polypeptides described herein, and the polynucleotides encoding them. A preferred
embodiment of the invention is directed to the use of chimeric or humanized antibodies and
fragments thereof (including Fab fragments) capable of binding to CGRP and/or inhibiting
the biological activities mediated by the binding of CGRP to the CGRP receptor (“CGRP-
R”).
In another preferred embodiment the uses of invention and the assays and
therapies described use full length antibodies and Fab fragments thereof for treatment or
prevention of diarrhea in diseases or conditions resulting in increased levels of CGRP that
inhibit the CGRP-alpha-, CGRP-beta-, and rat CGRP-driven production of cAMP. In a
further preferred embodiment described, full length and Fab fragments thereof are
contemplated that reduce vasodilation in a recipient following administration.
In another embodiment described, chimeric or humanized antibodies and
fragments thereof (including Fab fragments) capable of binding to CGRP or the CGRP
receptor are useful in methods directed to reducing, treating, or preventing diarrhea in
diseases or conditions resulting in increased levels of CGRP such as migraines (with or
without aura), cancer or tumors, angiogenesis associated with cancer or tumor growth,
angiogenesis associated with cancer or tumor survival, weight loss, pain, hemiplagic
migraines, cluster headaches, migrainous neuralgia, chronic headaches, tension headaches,
general headaches, hot flushes, chronic paroxysomal hemicrania, secondary headaches due
to an underlying structural problem in the head or neck, cranial neuralgia, sinus headaches
(such as for example associated with sinusitis), and allergy-induced headaches or
migraines.
In another embodiment described, chimeric or humanized antibodies and
fragments thereof (including Fab fragments) capable of binding to CGRP are useful in
methods directed to reducing, treating, or preventing diarrhea and visceral pain associated
with gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, inflammatory bowel
disease, Crohn’s disease, ileitis, ulcerative colitis, renal colic, dysmenorrhea, cystitis,
menstrual period, labor, menopause, prostatitis, or pancreatitis.
In another embodiment described these antibodies and humanized versions for
treatment or prevention of diarrhea in diseases or conditions resulting in increased levels of
CGRP may be derived from rabbit immune cells (B lymphocytes) and may be selected
based on their homology (sequence identity) to human germ line sequences. These
antibodies may require minimal or no sequence modifications, thereby facilitating retention
of functional properties after humanization. A further embodiment described is directed to
fragments from anti-CGRP antibodies encompassing V , V and CDR polypeptides, e.g.,
derived from rabbit immune cells and the polynucleotides encoding the same, as well as the
use of these antibody fragments and the polynucleotides encoding them in the creation of
novel antibodies and polypeptide compositions capable of binding to CGRP and/or
CGRP/CGRP-R complexes for treatment or prevention of diarrhea in diseases or
conditions resulting in increased levels of CGRP.
Also described are conjugates of anti-CGRP antibodies and binding fragments
thereof conjugated to one or more functional or detectable moieties for treatment or
prevention of diarrhea in diseases or conditions resulting in increased levels of CGRP.
Also described are methods of making said chimeric or humanized anti-CGRP or anti-
CGRP/CGRP-R complex antibodies and binding fragments thereof for treatment or
prevention of diarrhea in diseases or conditions resulting in increased levels of CGRP. In
one embodiment, binding fragments include, but are not limited to, Fab, Fab', F(ab') , Fv,
scFv fragments, SMIPs (small molecule immunopharmaceuticals), camelbodies,
nanobodies, and IgNAR.
Embodiments described pertain to the use of anti-CGRP antibodies and binding
fragments thereof for the diagnosis, assessment and treatment of diseases and disorders
associated with CGRP or aberrant expression thereof that result in diarrhea because of
increased levels of CGRP. Also described are the use of fragments of anti-CGRP
antibodies for the diagnosis, assessment and treatment of diseases and disorders associated
with CGRP or aberrant expression thereof such as diseases or conditions wherein increased
levels of CGRP in the gut result in diarrhea. Other embodiments described relate to the
production of anti-CGRP antibodies or fragments thereof in recombinant host cells, for
example mammalian cells such as CHO, NSO or HEK 293 cells, or yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
Figure 1 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab1.
Figure 2 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab2.
Figure 3 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab3.
Figure 4 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab4.
Figure 5 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab5.
Figure 6 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab6.
Figure 7 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab7.
Figure 8 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab8.
Figure 9 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab9.
Figure 10 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab10.
Figure 11 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab11.
Figure 12 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab12.
Figure 13 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab13.
Figure 14 provides polynucleotide and polypeptide sequences corresponding to
the full-length Antibody Ab14.
Figure 15 provides the CGRP-alpha ELISA binding data obtained following the
protocol in Example 1 infra for antibodies Ab1, Ab2, Ab3, and Ab4.
Figure 16 provides the CGRP-alpha ELISA binding data obtained following the
protocol in Example 1 infra for antibodies Ab5, Ab6, Ab7, and Ab8.
Figure 17 provides the CGRP-alpha ELISA binding data obtained following the
protocol in Example 1 infra for antibodies Ab9, Ab10, and Ab14.
Figure 18 provides the CGRP-alpha ELISA binding data obtained following the
protocol in Example 1 infra for antibodies Ab11, Ab12, and Ab13.
Figure 19 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibodies Ab1, Ab2, and Ab4, obtained following the protocol in Example 1 infra.
Figure 20 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibody Ab3, obtained following the protocol in Example 1 infra.
Figure 21 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibodies Ab5 and Ab6, obtained following the protocol in Example 1 infra.
Figure 22 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibodies Ab7, Ab8, Ab9, and Ab10, obtained following the protocol in Example 1
infra.
Figure 23 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibodies Ab11, Ab12, and Ab13, obtained following the protocol in Example 1 infra.
Figure 24 demonstrates the inhibition of CGRP-alpha-driven cAMP production
by antibody Ab14, obtained following the protocol in Example 1 infra.
Figure 25 demonstrates the inhibition of CGRP-beta-driven cAMP production
by antibodies Ab1, Ab2, and Ab3, obtained following the protocol in Example 1 infra.
Figure 26 demonstrates the inhibition of CGRP-beta-driven cAMP production
by antibodies Ab4, Ab5, and Ab6, obtained following the protocol in Example 1 infra.
Figure 27 demonstrates the inhibition of CGRP-beta-driven cAMP production
by antibodies Ab7 and Ab8, obtained following the protocol in Example 1 infra.
Figure 28 demonstrates the inhibition of CGRP-beta-driven cAMP production
by antibodies Ab9, Ab10, and Ab14, obtained following the protocol in Example 1 infra.
Figure 29 demonstrates the inhibition of CGRP-beta-driven cAMP production
by antibodies Ab11, Ab12, and Ab13, obtained following the protocol in Example 1 infra.
Figure 30 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibodies Ab1, Ab2, Ab4, and Ab5, obtained following the protocol in Example 1 infra.
Figure 31 demonstrates the inhibition of rat CGRP -driven cAMP production by
antibodies Ab3 and Ab6, obtained following the protocol in Example 1 infra.
Figure 32 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibodies Ab7 and Ab8, obtained following the protocol in Example 1 infra.
Figure 33 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibody Ab9, obtained following the protocol in Example 1 infra.
Figure 34 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibody Ab10, obtained following the protocol in Example 1 infra.
Figure 35 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibodies Ab11 and Ab12, obtained following the protocol in Example 1 infra.
Figure 36 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibody Ab13, obtained following the protocol in Example 1 infra.
Figure 37 demonstrates the inhibition of rat CGRP-driven cAMP production by
antibody Ab14, obtained following the protocol in Example 1 infra.
Figure 38 demonstrates the inhibition of binding of radiolabeled CGRP to
CGRP-R by antibodies Ab1-Ab13, obtained following the protocol in Example 6 infra.
Figure 39 demonstrates a reduction in vasodilation obtained by administering
antibodies Ab3 and Ab6 following capsaicin administration in a rat model, relative to a
control antibody, obtained following the protocol in Example 7 infra.
Figure 40 demonstrates a reduction in vasodilation obtained by administering
antibody Ab6 at differing concentrations following capsaicin administration in a rat model,
relative to a control antibody, obtained following the protocol in Example 7 infra.
Figure 41 contains the results of experiments wherein the effects of CGRP in
transgenic Nestin/hRamp1 mice were evaluated. The data shows that rat CGRP-alpha
administration induced diarrhea in Nestin/hRAMP1 tg mice and that the intra peritoneal
injection of Ab3 (30mgs/kg, ~24 hrs. prior to CGRP challenge) inhibits intra
cerebroventricular (ICV) injected, rat CGRP-alpha induced diarrhea in Nestin/hRAMP1 tg
mice.
Figure 42 contains the results of experiments which show that the intra
cerebroventricular (ICV) injection of human CGRP-alpha induces diarrhea in a dose
dependent manner in C57BL/6J mice.
Figure 43 contains the results of experiments which show that intra peritoneal
injection of Ab3 (30mgs/kg ip, ~24 hrs. prior to human CGRP-alpha challenge) inhibits
ICV injected human CGRP-alpha induced diarrhea in C57/BL6J mice.
Figure 44 contains the results of experiments which show that Ab3 (30mgs/kg ip
injection ~24 hrs. prior to human CGRP-alpha challenge) inhibits IP injected- human
CGRP-alpha induced diarrhea in C57/BL6J mice.
shows prevention of CGRP-induced diarrhea by Ab3 and Ab6 (both
administered at 10 mg/kg). Negative control animals (treated with a control antibody and
phosphate buffered saline, left bar) did not exhibit diarrhea, and 80% of positive control
animals (treated with CGRP and a negative control antibody, filled bar) exhibited diarrhea.
Administration of Ab3 (diagonal striped bar) and Ab6 (cross-hatched bar) reduced
incidence of diarrhea to 40% and 60%, respectively.
shows gross fecal weight resulting from CGRP-induced diarrhea for the
experiment shown in . Gross fecal weight was greatly increased by administration
of CGRP (second bar) compared to negative control animals (first bar). However, Ab3-
and Ab6-treated animals exhibited greatly reduced gross fecal weight (third and fourth
bars, respectively). Values shown are the average of all animals in each test group plus or
minus standard error of mean (SEM).
confirms prevention of CGRP-induced diarrhea by Ab3 and Ab6 in a
further experiment (both antibodies administered at 30 mg/kg). Diarrhea was absent in
negative control animals (treated with a control antibody and phosphate buffered saline,
first bar) but observed in 80% of positive control animals (second bar, filled). Diarrhea
incidence was reduced to 20% and 40%, respectively by Ab3 (third bar, diagonal stripes)
and Ab6 (fourth bar, crosshatch).
shows gross fecal weight resulting from CGRP-induced diarrhea for the
experiment shown in . Gross fecal weight was greatly increased by administration
of CGRP (second bar, filled) compared to negative control animals (first bar, unfilled).
However, Ab6-treated animals exhibited greatly reduced gross fecal weight (fourth bar,
checkered), and Ab3-treated animals (third bar, crosshatch) exhibited average gross fecal
weight comparable to negative control animals (left bar, unfilled). Values shown are the
average of all animals in each test group plus or minus standard error of mean (SEM).
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Definitions
It is to be understood that this invention is not limited to the particular
methodology, protocols, cell lines, animal species or genera, and reagents described, as
such may vary. It is also to be understood that the terminology used herein is for the
purpose of describing particular embodiments only, and is not intended to limit the scope
of the present invention which will be limited only by the appended claims. As used herein
the singular forms "a", "and", and "the" include plural referents unless the context clearly
dictates otherwise. Thus, for example, reference to "a cell" includes a plurality of such
cells and reference to "the protein" includes reference to one or more proteins and
equivalents thereof known to those skilled in the art, and so forth. All technical and
scientific terms used herein have the same meaning as commonly understood to one of
ordinary skill in the art to which this invention belongs unless clearly indicated otherwise.
Calcitonin Gene Related Peptide (CGRP): As used herein, CGRP encompasses
not only the following Homo sapiens CGRP-alpha and Homo sapiens CGRP-beta amino
acid sequences available from American Peptides (Sunnyvale CA) and Bachem (Torrance,
CA):
CGRP-alpha: ACDTATCVTHRLAGLLSRSGGVVKNNFVPTNVGSKAF-
NH2 (SEQ ID NO: 281), wherein the N-terminal phenylalanine is amidated;
CGRP-beta: ACNTATCVTHRLAGLLSRSGGMVKSNFVPTNVGSKAF-NH2
(SEQ ID NO: 282), wherein the N-terminal phenylalanine is amidated; but also any
membrane-bound forms of these CGRP amino acid sequences, as well as mutants
(mutiens), splice variants, isoforms, orthologues, homologues and variants of this
sequence. In particular CGRP herein encompasses rodent CGRPs and CGRP sequences of
other mammals.
“CGRP receptor” herein includes all endogenous receptors that are specifically
bound by CGRP, including human and rodent CGRP and other mammalian CGRP. As well
CGRP receptor” includes mutants (mutiens), splice variants, isoforms, orthologues,
homologues, fragments and variants of CGRP receptors that are specifically bound by
CGRP. In particular CGRP receptor herein encompasses human, rat, murine and non-
human primate CGRP receptors and CGRP receptor sequences of other mammals.
“CGRP/CGRP Receptor Inhibitor” herein refers to a molecule, preferably a
polypeptide such as an antibody or antibody fragment that inhibits the interaction of CGRP
and its receptor. Non-limiting examples thereof include antibodies and antibody fragments
that specifically bind CGRP or the CGRP receptor and fragments of CGRP or the CGRP
receptor.
“Diarrhea” refers to an increase in the frequency of bowel movements or a
decrease in the form of stool (greater looseness of stool). Although changes in frequency of
bowel movements and looseness of stools can vary independently of each other, changes
often occur in both. Diarrhea needs to be distinguished from four other conditions.
Although these conditions may accompany diarrhea, they often have different causes and
different treatments than diarrhea. These other conditions are: incontinence of stool, which
is the inability to control (delay) bowel movements until an appropriate time, for example,
until one can get to the toilet , rectal urgency, which is a sudden urge to have a bowel
movement that is so strong that if a toilet is not immediately available there will be
incontinence, incomplete evacuation, which is a sensation that another bowel movement is
necessary soon after a bowel movement, yet there is difficulty passing further stool the
second time and bowel movements immediately after eating a meal.
Diarrhea can be defined in absolute or relative terms based on either the
frequency of bowel movements or the consistency (looseness) of stools.
Frequency of bowel movements. Absolute diarrhea is having more bowel
movements than normal. Thus, since among healthy individuals the maximum number of
daily bowel movements is approximately three, diarrhea can be defined as any number of
stools greater than three. Relative diarrhea is having more bowel movements than usual.
Thus, if an individual who usually has one bowel movement each day begins to have two
bowel movements each day, then diarrhea is present-even though there are not more than
three bowel movements a day, that is, there is not absolute diarrhea.
Consistency of stools. Absolute diarrhea is more difficult to define on the basis
of the consistency of stool because the consistency of stool can vary considerably in
healthy individuals depending on their diets. Thus, individuals who eat large amounts of
vegetables will have looser stools than individuals who eat few vegetables. Stools that are
liquid or watery are always abnormal and considered diarrheal. Relative diarrhea is easier
to define based on the consistency of stool. Thus, an individual who develops looser stools
than usual has diarrhea--even though the stools may be within the range of normal with
respect to consistency.
Diarrhea generally is divided into two types, acute and chronic. Acute diarrhea
lasts from a few days up to a week. Chronic diarrhea can be defined in several ways but
almost always lasts more than three weeks. Acute and chronic diarrhea usually have
different causes, require different diagnostic tests, and often involve different treatments.
“Treatment or prevention of CGRP-induced diarrhea” means that the treatment,
e.g., administration of an anti-CGRP antibody or fragment effectively inhibits or treats
diarrhea and/or maintains proper electrolyte and fluid levels in the colon of a subject in
need thereof relative to an untreated subject.
“CGRP-induced diarrhea or CGRP-associated diarrhea” refers to a condition or
treatment resulting in elevated CGRP levels, especially in the gastrointestinal system and
especially the colon that result in one or more of increased excretion of fluid from the
colon, impaired electrolyte balance and one or more watery bowel movements (diarrhea).
“Treatments that result in CGRP-associated diarrhea” herein refer to any
treatment for a disease condition, e.g., radiation, chemotherapy, drug therapy that result in
increased CGRP levels that are associated with diarrhea.
‘CGRP associated disease or condition” is any disease or condition that is
associated with increased CGRP levels relative to CGRP levels in normal individuals.
Mating competent yeast species: In the description this is intended to broadly
encompass any diploid or tetraploid yeast which can be grown in culture. Such species of
yeast may exist in a haploid, diploid, or other polyploid form. The cells of a given ploidy
may, under appropriate conditions, proliferate for an indefinite number of generations in
that form. Diploid cells can also sporulate to form haploid cells. Sequential mating can
result in tetraploid strains through further mating or fusion of diploid strains. Described is
the use of haploid yeast, as well as diploid or other polyploid yeast cells produced, for
example, by mating or spheroplast fusion.
In one embodiment of the invention, the mating competent yeast is a member of
the Saccharomycetaceae family, which includes the genera Arxiozyma; Ascobotryozyma;
Citeromyces; Debaryomyces; Dekkera; Eremothecium; Issatchenkia; Kazachstania;
Kluyveromyces; Kodamaea; Lodderomyces; Pachysolen; Pichia; Saccharomyces;
Saturnispora; Tetrapisispora; Torulaspora; Williopsis; and Zygosaccharomyces. Other
types of yeast potentially useful in the invention include Yarrowia; Rhodosporidium;
Candida; Hansenula; Filobasium; Sporidiobolus; Bullera; Leucosporidium and
Filobasidella.
In one embodiment described, the mating competent yeast is a member of the
genus Pichia. In a further preferred embodiment of the invention, the mating competent
yeast of the genus Pichia is one of the following species: Pichia pastoris, Pichia
methanolica, and Hansenula polymorpha (Pichia angusta). In a particularly preferred
embodiment described, the mating competent yeast of the genus Pichia is the species Pichia
pastoris.
Haploid Yeast Cell: A cell having a single copy of each gene of its normal
genomic (chromosomal) complement.
Polyploid Yeast Cell: A cell having more than one copy of its normal genomic
(chromosomal) complement.
Diploid Yeast Cell: A cell having two copies (alleles) of essentially every gene
of its normal genomic complement, typically formed by the process of fusion (mating) of
two haploid cells.
Tetraploid Yeast Cell: A cell having four copies (alleles) of essentially every
gene of its normal genomic complement, typically formed by the process of fusion
(mating) of two haploid cells. Tetraploids may carry two, three, four or more different
expression cassettes. Such tetraploids might be obtained in S. cerevisiae by selective
mating homozygotic heterothallic a/a and alpha/alpha diploids and in Pichia by sequential
mating of haploids to obtain auxotrophic diploids. For example, a [met his] haploid can be
mated with [ade his] haploid to obtain diploid [his]; and a [met arg] haploid can be mated
with [ade arg] haploid to obtain diploid [arg]; then the diploid [his] x diploid [arg] to obtain
a tetraploid prototroph. It will be understood by those of skill in the art that reference to
the benefits and uses of diploid cells may also apply to tetraploid cells.
Yeast Mating: The process by which two haploid yeast cells naturally fuse to
form one diploid yeast cell.
Meiosis: The process by which a diploid yeast cell undergoes reductive division
to form four haploid spore products. Each spore may then germinate and form a haploid
vegetatively growing cell line.
Selectable Marker: A selectable marker is a gene or gene fragment that confers
a growth phenotype (physical growth characteristic) on a cell receiving that gene as, for
example through a transformation event. The selectable marker allows that cell to survive
and grow in a selective growth medium under conditions in which cells that do not receive
that selectable marker gene cannot grow. Selectable marker genes generally fall into
several types, including positive selectable marker genes such as a gene that confers on a
cell resistance to an antibiotic or other drug, temperature when two temperature sensitive
(“ts”) mutants are crossed or a ts mutant is transformed; negative selectable marker genes
such as a biosynthetic gene that confers on a cell the ability to grow in a medium without a
specific nutrient needed by all cells that do not have that biosynthetic gene, or a
mutagenized biosynthetic gene that confers on a cell inability to grow by cells that do not
have the wild type gene; and the like. Suitable markers include but are not limited to:
ZEO; G418; LYS3; MET1; MET3a; ADE1; ADE3; URA3; and the like.
Expression Vector: These DNA vectors contain elements that facilitate
manipulation for the expression of a foreign protein within the target host cell.
Conveniently, manipulation of sequences and production of DNA for transformation is first
performed in a bacterial host, e.g. E. coli, and usually vectors will include sequences to
facilitate such manipulations, including a bacterial origin of replication and appropriate
bacterial selection marker. Selection markers encode proteins necessary for the survival or
growth of transformed host cells grown in a selective culture medium. Host cells not
transformed with the vector containing the selection gene will not survive in the culture
medium. Typical selection genes encode proteins that (a) confer resistance to antibiotics or
other toxins, (b) complement auxotrophic deficiencies, or (c) supply critical nutrients not
available from complex media. Exemplary vectors and methods for transformation of
yeast are described, for example, in Burke, D., Dawson, D., & Stearns, T. (2000). Methods
in yeast genetics: a Cold Spring Harbor Laboratory course manual. Plainview, N.Y.: Cold
Spring Harbor Laboratory Press.
Expression vectors for use in the methods described will further include yeast
specific sequences, including a selectable auxotrophic or drug marker for identifying
transformed yeast strains. A drug marker may further be used to amplify copy number of
the vector in a yeast host cell.
The polypeptide coding sequence of interest is operably linked to transcriptional
and translational regulatory sequences that provide for expression of the polypeptide in
yeast cells. These vector components may include, but are not limited to, one or more of
the following: an enhancer element, a promoter, and a transcription termination sequence.
Sequences for the secretion of the polypeptide may also be included, e.g. a signal sequence,
and the like. A yeast origin of replication is optional, as expression vectors are often
integrated into the yeast genome. In one embodiment described, the polypeptide of interest
is operably linked, or fused, to sequences providing for optimized secretion of the
polypeptide from yeast diploid cells.
Nucleic acids are "operably linked" when placed into a functional relationship
with another nucleic acid sequence. For example, DNA for a signal sequence is operably
linked to DNA for a polypeptide if it is expressed as a preprotein that participates in the
secretion of the polypeptide; a promoter or enhancer is operably linked to a coding
sequence if it affects the transcription of the sequence. Generally, "operably linked" means
that the DNA sequences being linked are contiguous, and, in the case of a secretory leader,
contiguous and in reading frame. However, enhancers do not have to be contiguous.
Linking is accomplished by ligation at convenient restriction sites or alternatively via a
PCR/recombination method familiar to those skilled in the art (GatewayR Technology;
Invitrogen, Carlsbad California). If such sites do not exist, the synthetic oligonucleotide
adapters or linkers are used in accordance with conventional practice.
Promoters are untranslated sequences located upstream (5') to the start codon of
a structural gene (generally within about 100 to 1000 bp) that control the transcription and
translation of particular nucleic acid sequences to which they are operably linked. Such
promoters fall into several classes: inducible, constitutive, and repressible promoters (that
increase levels of transcription in response to absence of a repressor). Inducible promoters
may initiate increased levels of transcription from DNA under their control in response to
some change in culture conditions, e.g., the presence or absence of a nutrient or a change in
temperature.
The yeast promoter fragment may also serve as the site for homologous
recombination and integration of the expression vector into the same site in the yeast
genome; alternatively a selectable marker is used as the site for homologous
recombination. Pichia transformation is described in Cregg et al. (1985) Mol. Cell. Biol.
:3376-3385.
Examples of suitable promoters from Pichia include the AOX1 and promoter
(Cregg et al. (1989) Mol. Cell. Biol. 9:1316-1323); ICL1 promoter (Menendez et al. (2003)
Yeast 20(13):1097-108); glyceraldehydephosphate dehydrogenase promoter (GAP)
(Waterham et al. (1997) Gene 186(1):37-44); and FLD1 promoter (Shen et al. (1998) Gene
216(1):93-102). The GAP promoter is a strong constitutive promoter and the AOX and
FLD1 promoters are inducible.
Other yeast promoters include ADH1, alcohol dehydrogenase II, GAL4, PHO3,
PHO5, Pyk, and chimeric promoters derived therefrom. Additionally, non-yeast promoters
may be used such as mammalian, insect, plant, reptile , amphibian, viral, and avian
promoters. Most typically the promoter will comprise a mammalian promoter (potentially
endogenous to the expressed genes) or will comprise a yeast or viral promoter that provides
for efficient transcription in yeast systems.
The polypeptides of interest may be produced recombinantly not only directly,
but also as a fusion polypeptide with a heterologous polypeptide, e.g. a signal sequence or
other polypeptide having a specific cleavage site at the N-terminus of the mature protein or
polypeptide. In general, the signal sequence may be a component of the vector, or it may
be a part of the polypeptide coding sequence that is inserted into the vector. The
heterologous signal sequence selected preferably is one that is recognized and processed
through one of the standard pathways available within the host cell. The S. cerevisiae
alpha factor pre-pro signal has proven effective in the secretion of a variety of recombinant
proteins from P. pastoris. Other yeast signal sequences include the alpha mating factor
signal sequence, the invertase signal sequence, and signal sequences derived from other
secreted yeast polypeptides. Additionally, these signal peptide sequences may be
engineered to provide for enhanced secretion in diploid yeast expression systems. Other
secretion signals of interest also include mammalian signal sequences, which may be
heterologous to the protein being secreted, or may be a native sequence for the protein
being secreted. Signal sequences include pre-peptide sequences, and in some instances
may include propeptide sequences. Many such signal sequences are known in the art,
including the signal sequences found on immunoglobulin chains, e.g., K28 preprotoxin
sequence, PHA-E, FACE, human MCP-1, human serum albumin signal sequences, human
Ig heavy chain, human Ig light chain, and the like. For example, see Hashimoto et. al.
Protein Eng 11(2) 75 (1998); and Kobayashi et. al. Therapeutic Apheresis 2(4) 257 (1998).
Transcription may be increased by inserting a transcriptional activator sequence
into the vector. These activators are cis-acting elements of DNA, usually about from 10 to
300 bp, which act on a promoter to increase its transcription. Transcriptional enhancers are
relatively orientation and position independent, having been found 5' and 3' to the
transcription unit, within an intron, as well as within the coding sequence itself. The
enhancer may be spliced into the expression vector at a position 5' or 3' to the coding
sequence, but is preferably located at a site 5' from the promoter.
Expression vectors used in eukaryotic host cells may also contain sequences
necessary for the termination of transcription and for stabilizing the mRNA. Such
sequences are commonly available from 3' to the translation termination codon, in
untranslated regions of eukaryotic or viral DNAs or cDNAs. These regions contain
nucleotide segments transcribed as polyadenylated fragments in the untranslated portion of
the mRNA.
Construction of suitable vectors containing one or more of the above-listed
components employs standard ligation techniques or PCR/recombination methods.
Isolated plasmids or DNA fragments are cleaved, tailored, and re-ligated in the form
desired to generate the plasmids required or via recombination methods. For analysis to
confirm correct sequences in plasmids constructed, the ligation mixtures are used to
transform host cells, and successful transformants selected by antibiotic resistance (e.g.
ampicillin or Zeocin) where appropriate. Plasmids from the transformants are prepared,
analyzed by restriction endonuclease digestion and/or sequenced.
As an alternative to restriction and ligation of fragments, recombination methods
based on att sites and recombination enzymes may be used to insert DNA sequences into a
vector. Such methods are described, for example, by Landy (1989) Ann.Rev.Biochem.
58:913-949; and are known to those of skill in the art. Such methods utilize intermolecular
DNA recombination that is mediated by a mixture of lambda and E.coli –encoded
recombination proteins. Recombination occurs between specific attachment (att) sites on
the interacting DNA molecules. For a description of att sites see Weisberg and Landy
(1983) Site-Specific Recombination in Phage Lambda, in Lambda II, Weisberg, ed.(Cold
Spring Harbor, NY:Cold Spring Harbor Press), pp. 211-250. The DNA segments flanking
the recombination sites are switched, such that after recombination, the att sites are hybrid
sequences comprised of sequences donated by each parental vector. The recombination
can occur between DNAs of any topology.
Att sites may be introduced into a sequence of interest by ligating the sequence
of interest into an appropriate vector; generating a PCR product containing att B sites
through the use of specific primers; generating a cDNA library cloned into an appropriate
vector containing att sites; and the like.
Folding, as used herein, refers to the three-dimensional structure of polypeptides
and proteins, where interactions between amino acid residues act to stabilize the structure.
While non-covalent interactions are important in determining structure, usually the proteins
of interest will have intra- and/or intermolecular covalent disulfide bonds formed by two
cysteine residues. For naturally occurring proteins and polypeptides or derivatives and
variants thereof, the proper folding is typically the arrangement that results in optimal
biological activity, and can conveniently be monitored by assays for activity, e.g. ligand
binding, enzymatic activity, etc.
In some instances, for example where the desired product is of synthetic origin,
assays based on biological activity will be less meaningful. The proper folding of such
molecules may be determined on the basis of physical properties, energetic considerations,
modeling studies, and the like.
The expression host may be further modified by the introduction of sequences
encoding one or more enzymes that enhance folding and disulfide bond formation, i.e.
foldases, chaperonins, etc. Such sequences may be constitutively or inducibly expressed in
the yeast host cell, using vectors, markers, etc. as known in the art. Preferably the
sequences, including transcriptional regulatory elements sufficient for the desired pattern of
expression, are stably integrated in the yeast genome through a targeted methodology.
For example, the eukaryotic PDI is not only an efficient catalyst of protein
cysteine oxidation and disulfide bond isomerization, but also exhibits chaperone activity.
Co-expression of PDI can facilitate the production of active proteins having multiple
disulfide bonds. Also of interest is the expression of BIP (immunoglobulin heavy chain
binding protein); cyclophilin; and the like. In one embodiment described, each of the
haploid parental strains expresses a distinct folding enzyme, e.g. one strain may express
BIP, and the other strain may express PDI or combinations thereof.
The terms "desired protein" or "desired antibody" are used interchangeably and
refer generally to a parent antibody specific to a target, i.e., CGRP or a chimeric or
humanized antibody or a binding portion thereof derived therefrom as described herein.
The term “antibody” is intended to include any polypeptide chain-containing molecular
structure with a specific shape that fits to and recognizes an epitope, where one or more
non-covalent binding interactions stabilize the complex between the molecular structure
and the epitope. The archetypal antibody molecule is the immunoglobulin, and all types of
immunoglobulins, IgG, IgM, IgA, IgE, IgD, etc., from all sources, e.g. human, rodent,
rabbit, cow, sheep, pig, dog, other mammals, chicken, other avians, etc., are considered to
be “antibodies.” A preferred source for producing antibodies useful as starting material
herein is rabbits. Numerous antibody coding sequences have been described; and others
may be raised by methods well-known in the art. Examples thereof include chimeric
antibodies, human antibodies and other non-human mammalian antibodies, humanized
antibodies, single chain antibodies (such as scFvs), camelbodies, nanobodies, IgNAR
(single-chain antibodies derived from sharks), small-modular immunopharmaceuticals
(SMIPs), and antibody fragments such as Fabs, Fab', F(ab')2 and the like. See Streltsov
VA, et al., Structure of a shark IgNAR antibody variable domain and modeling of an early-
developmental isotype, Protein Sci. 2005 Nov;14(11):2901-9. Epub 2005 Sep 30;
Greenberg AS, et al., A new antigen receptor gene family that undergoes rearrangement
and extensive somatic diversification in sharks, Nature. 1995 Mar 9;374(6518):168-73;
Nuttall SD, et al., Isolation of the new antigen receptor from wobbegong sharks, and use as
a scaffold for the display of protein loop libraries, Mol Immunol. 2001 Aug;38(4):313-26;
Hamers-Casterman C, et al., Naturally occurring antibodies devoid of light chains, Nature.
1993 Jun 3;363(6428):446-8; Gill DS, et al., Biopharmaceutical drug discovery using novel
protein scaffolds, Curr Opin Biotechnol. 2006 Dec;17(6):653-8. Epub 2006 Oct 19.
For example, antibodies or antigen binding fragments may be produced by
genetic engineering. In this technique, as with other methods, antibody-producing cells are
sensitized to the desired antigen or immunogen. The messenger RNA isolated from
antibody producing cells is used as a template to make cDNA using PCR amplification. A
library of vectors, each containing one heavy chain gene and one light chain gene retaining
the initial antigen specificity, is produced by insertion of appropriate sections of the
amplified immunoglobulin cDNA into the expression vectors. A combinatorial library is
constructed by combining the heavy chain gene library with the light chain gene library.
This results in a library of clones which co-express a heavy and light chain (resembling the
Fab fragment or antigen binding fragment of an antibody molecule). The vectors that carry
these genes are co-transfected into a host cell. When antibody gene synthesis is induced in
the transfected host, the heavy and light chain proteins self-assemble to produce active
antibodies that can be detected by screening with the antigen or immunogen.
Antibody coding sequences of interest include those encoded by native
sequences, as well as nucleic acids that, by virtue of the degeneracy of the genetic code, are
not identical in sequence to the disclosed nucleic acids, and variants thereof. Variant
polypeptides can include amino acid (aa) substitutions, additions or deletions. The amino
acid substitutions can be conservative amino acid substitutions or substitutions to eliminate
non-essential amino acids, such as to alter a glycosylation site, or to minimize misfolding
by substitution or deletion of one or more cysteine residues that are not necessary for
function. Variants can be designed so as to retain or have enhanced biological activity of a
particular region of the protein (e.g., a functional domain, catalytic amino acid residues,
etc). Variants also include fragments of the polypeptides disclosed herein, particularly
biologically active fragments and/or fragments corresponding to functional domains.
Techniques for in vitro mutagenesis of cloned genes are known. Also described are
polypeptides that have been modified using ordinary molecular biological techniques so as
to improve their resistance to proteolytic degradation or to optimize solubility properties or
to render them more suitable as a therapeutic agent.
Chimeric antibodies described for treatment or prevention of diarrhea in diseases
or conditions resulting in increased levels of CGRP may be made by recombinant means by
combining the variable light and heavy chain regions (VL and VH), obtained from
antibody producing cells of one species with the constant light and heavy chain regions
from another. Typically chimeric antibodies utilize rodent or rabbit variable regions and
human constant regions, in order to produce an antibody with predominantly human
domains. The production of such chimeric antibodies is well known in the art, and may be
achieved by standard means (as described, e.g., in U.S. Patent No. 5,624,659, incorporated
herein by reference in its entirety). It is further contemplated that the human constant
regions of chimeric antibodies described may be selected from IgG1, IgG2, IgG3, IgG4,
IgG5, IgG6, IgG7, IgG8, IgG9, IgG10, IgG11, IgG12, IgG13, IgG14, IgG15, IgG16,
IgG17, IgG18 or IgG19 constant regions.
Humanized antibodies are engineered to contain even more human-like
immunoglobulin domains, and incorporate only the complementarity-determining regions
of the animal-derived antibody. This is accomplished by carefully examining the sequence
of the hyper-variable loops of the variable regions of the monoclonal antibody, and fitting
them to the structure of the human antibody chains. Although facially complex, the
process is straightforward in practice. See, e.g., U.S. Patent No. 6,187,287, incorporated
fully herein by reference.
In addition to entire immunoglobulins (or their recombinant counterparts),
immunoglobulin fragments comprising the epitope binding site (e.g., Fab’, F(ab’)2, or
other fragments) may be synthesized. “Fragment,” or minimal immunoglobulins may be
designed utilizing recombinant immunoglobulin techniques. For instance “Fv”
immunoglobulins for use in the present invention may be produced by synthesizing a fused
variable light chain region and a variable heavy chain region. Combinations of antibodies
are also of interest, e.g. diabodies, which comprise two distinct Fv specificities. In another
embodiment described, SMIPs (small molecule immunopharmaceuticals), camelbodies,
nanobodies, and IgNAR are encompassed by immunoglobulin fragments.
Immunoglobulins and fragments thereof may be modified post-translationally,
e.g. to add effector moieties such as chemical linkers, detectable moieties, such as
fluorescent dyes, enzymes, toxins, substrates, bioluminescent materials, radioactive
materials, chemiluminescent moieties and the like, or specific binding moieties, such as
streptavidin, avidin, or biotin, and the like may be utilized in the methods and compositions
described. Examples of additional effector molecules are provided infra.
A polynucleotide sequence "corresponds" to a polypeptide sequence if
translation of the polynucleotide sequence in accordance with the genetic code yields the
polypeptide sequence (i.e., the polynucleotide sequence "encodes" the polypeptide
sequence), one polynucleotide sequence "corresponds" to another polynucleotide sequence
if the two sequences encode the same polypeptide sequence.
A "heterologous" region or domain of a DNA construct is an identifiable
segment of DNA within a larger DNA molecule that is not found in association with the
larger molecule in nature. Thus, when the heterologous region encodes a mammalian gene,
the gene will usually be flanked by DNA that does not flank the mammalian genomic DNA
in the genome of the source organism. Another example of a heterologous region is a
construct where the coding sequence itself is not found in nature (e.g., a cDNA where the
genomic coding sequence contains introns, or synthetic sequences having codons different
than the native gene). Allelic variations or naturally-occurring mutational events do not
give rise to a heterologous region of DNA as defined herein.
A "coding sequence" is an in-frame sequence of codons that (in view of the
genetic code) correspond to or encode a protein or peptide sequence. Two coding
sequences correspond to each other if the sequences or their complementary sequences
encode the same amino acid sequences. A coding sequence in association with appropriate
regulatory sequences may be transcribed and translated into a polypeptide. A
polyadenylation signal and transcription termination sequence will usually be located 3' to
the coding sequence. A "promoter sequence" is a DNA regulatory region capable of
binding RNA polymerase in a cell and initiating transcription of a downstream (3'
direction) coding sequence. Promoter sequences typically contain additional sites for
binding of regulatory molecules (e.g., transcription factors) which affect the transcription
of the coding sequence. A coding sequence is "under the control" of the promoter sequence
or "operatively linked" to the promoter when RNA polymerase binds the promoter
sequence in a cell and transcribes the coding sequence into mRNA, which is then in turn
translated into the protein encoded by the coding sequence.
Vectors are used to introduce a foreign substance, such as DNA, RNA or
protein, into an organism or host cell. Typical vectors include recombinant viruses (for
polynucleotides) and liposomes (for polypeptides). A "DNA vector" is a replicon, such as
plasmid, phage or cosmid, to which another polynucleotide segment may be attached so as
to bring about the replication of the attached segment. An "expression vector" is a DNA
vector which contains regulatory sequences which will direct polypeptide synthesis by an
appropriate host cell. This usually means a promoter to bind RNA polymerase and initiate
transcription of mRNA, as well as ribosome binding sites and initiation signals to direct
translation of the mRNA into a polypeptide(s). Incorporation of a polynucleotide sequence
into an expression vector at the proper site and in correct reading frame, followed by
transformation of an appropriate host cell by the vector, enables the production of a
polypepide encoded by said polynucleotide sequence.
"Amplification" of polynucleotide sequences is the in vitro production of
multiple copies of a particular nucleic acid sequence. The amplified sequence is usually in
the form of DNA. A variety of techniques for carrying out such amplification are
described in a review article by Van Brunt (1990, Bio/Technol., 8(4):291-294). Polymerase
chain reaction or PCR is a prototype of nucleic acid amplification, and use of PCR herein
should be considered exemplary of other suitable amplification techniques.
The general structure of antibodies in vertebrates now is well understood
(Edelman, G. M., Ann. N.Y. Acad. Sci., 190: 5 (1971)). Antibodies consist of two
identical light polypeptide chains of molecular weight approximately 23,000 daltons (the
“light chain”), and two identical heavy chains of molecular weight 53,000-70,000 (the
“heavy chain”). The four chains are joined by disulfide bonds in a “Y” configuration
wherein the light chains bracket the heavy chains starting at the mouth of the “Y”
configuration. The “branch” portion of the “Y” configuration is designated the Fab region;
the stem portion of the “Y” configuration is designated the FC region. The amino acid
sequence orientation runs from the N-terminal end at the top of the “Y” configuration to
the C-terminal end at the bottom of each chain. The N-terminal end possesses the variable
region having specificity for the antigen that elicited it, and is approximately 100 amino
acids in length, there being slight variations between light and heavy chain and from
antibody to antibody.
The variable region is linked in each chain to a constant region that extends the
remaining length of the chain and that within a particular class of antibody does not vary
with the specificity of the antibody (i.e., the antigen eliciting it). There are five known
major classes of constant regions that determine the class of the immunoglobulin molecule
(IgG, IgM, IgA, IgD, and IgE corresponding to γ, μ, α, δ, and ε (gamma, mu, alpha, delta,
or epsilon) heavy chain constant regions). The constant region or class determines
subsequent effector function of the antibody, including activation of complement (Kabat,
E. A., Structural Concepts in Immunology and Immunochemistry, 2nd Ed., p. 413-436,
Holt, Rinehart, Winston (1976)), and other cellular responses (Andrews, D. W., et al.,
Clinical Immunobiology, pp 1-18, W. B. Sanders (1980); Kohl, S., et al., Immunology, 48:
187 (1983)); while the variable region determines the antigen with which it will react.
Light chains are classified as either κ (kappa) or λ (lambda). Each heavy chain class can be
prepared with either kappa or lambda light chain. The light and heavy chains are
covalently bonded to each other, and the “tail” portions of the two heavy chains are bonded
to each other by covalent disulfide linkages when the immunoglobulins are generated either
by hybridomas or by B cells.
The expression “variable region” or “VR” refers to the domains within each pair
of light and heavy chains in an antibody that are involved directly in binding the antibody
to the antigen. Each heavy chain has at one end a variable domain (VH) followed by a
number of constant domains. Each light chain has a variable domain (VL) at one end and a
constant domain at its other end; the constant domain of the light chain is aligned with the
first constant domain of the heavy chain, and the light chain variable domain is aligned
with the variable domain of the heavy chain.
The expressions “complementarity determining region,” “hypervariable region,”
or “CDR” refer to one or more of the hyper-variable or complementarity determining
regions (CDRs) found in the variable regions of light or heavy chains of an antibody (See
Kabat, E. A. et al., Sequences of Proteins of Immunological Interest, National Institutes of
Health, Bethesda, Md., (1987)). These expressions include the hypervariable regions as
defined by Kabat et al. (“Sequences of Proteins of Immunological Interest,” Kabat E., et
al., US Dept. of Health and Human Services, 1983) or the hypervariable loops in 3-
dimensional structures of antibodies (Chothia and Lesk, J Mol. Biol. 196 901-917 (1987)).
The CDRs in each chain are held in close proximity by framework regions and, with the
CDRs from the other chain, contribute to the formation of the antigen binding site. Within
the CDRs there are select amino acids that have been described as the selectivity
determining regions (SDRs) which represent the critical contact residues used by the CDR
in the antibody-antigen interaction (Kashmiri, S., Methods, 36:25-34 (2005)).
The expressions “framework region” or “FR” refer to one or more of the
framework regions within the variable regions of the light and heavy chains of an antibody
(See Kabat, E. A. et al., Sequences of Proteins of Immunological Interest, National
Institutes of Health, Bethesda, Md., (1987)). These expressions include those amino acid
sequence regions interposed between the CDRs within the variable regions of the light and
heavy chains of an antibody.
[000174A] The term “comprising” as used in this specification means “consisting at
least in part of”. When interpreting each statement in this specification that includes the
term “comprising”, features other than that or those prefaced by the term may also be
present. Related terms such as “comprise” and “comprises” are to be interpreted in the
same manner.
ANTI-CGRP ANTIBODIES AND BINDING FRAGMENTS THEREOF HAVING
BINDING ACTIVITY FOR CGRP
Antibody Ab1
Broadly described is use of any anti-CGRP antibody or antibody fragment for
the treatment or prevention of CGRP-associated diarrhea in any disease or condition
resulting in increased levels of CGRP that are involved in diarrhea, and/or increased fluid
or electrolyte excretion from the colon. Conditions and treatments resulting in increased
CGRP which is associated with diarrhea are identified in this application.
In one preferred embodiment, described are chimeric antibodies for the treatment
or prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQTASPVSAAVGSTVTINCQASQSVYDNNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFKGSGSGTQFTLTISDLECADAATYYCLGSYDCSSGDCFVFGGGTEVVV
KR (SEQ ID NO: 1).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQTASPVSAAVGSTVTINCQASQSVYDNNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFKGSGSGTQFTLTISDLECADAATYYCLGSYDCSSGDCFVFGGGTEVVV
KRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQE
SVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 2).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCTVSGLDLSSYYMQWVRQAPGKGLEWIGVIGINDNT
YYASWAKGRFTISRASSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSS
(SEQ ID NO: 3).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a heavy chain
sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCTVSGLDLSSYYMQWVRQAPGKGLEWIGVIGINDNT
YYASWAKGRFTISRASSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSSAST
KGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQS
SGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCPPCPAPE
LLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAK
TKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQP
REPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLD
SDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK (SEQ ID
NO: 4).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
; SEQ ID NO: 6; and SEQ ID NO: 7 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 1 or the light chain sequence of SEQ ID NO: 2, and/or one or more of the
polypeptide sequences of SEQ ID NO: 8; SEQ ID NO: 9; and SEQ ID NO: 10 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 3 or the heavy chain sequence of
SEQ ID NO: 4, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 1 or SEQ ID NO: 2. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 3 or SEQ ID NO: 4.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 5;
SEQ ID NO: 6; and SEQ ID NO: 7 which correspond to the complementarity-determining
regions (CDRs, or hypervariable regions) of the variable light chain sequence of SEQ ID
NO: 1 or the light chain sequence of SEQ ID NO: 2.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 8;
SEQ ID NO: 9; and SEQ ID NO: 10 which correspond to the complementarity-determining
regions (CDRs, or hypervariable regions) of the variable heavy chain sequence of SEQ ID
NO: 3 or the heavy chain sequence of SEQ ID NO: 4.
Also described are antibody fragments which include one or more of the
antibody fragments described herein for the treatment or prevention of CGRP-associated
diarrhea. In one embodiment described, fragments of the antibodies having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following antibody fragments: the variable light chain region of SEQ
ID NO: 1; the variable heavy chain region of SEQ ID NO: 3; the complementarity-
determining regions (SEQ ID NO: 5; SEQ ID NO: 6; and SEQ ID NO: 7) of the variable
light chain region of SEQ ID NO: 1; and the complementarity-determining regions (SEQ
ID NO: 8; SEQ ID NO: 9; and SEQ ID NO: 10) of the variable heavy chain region of SEQ
ID NO: 3.
In one embodiment described, the chimeric anti- CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab1, comprising, or alternatively
consisting of, SEQ ID NO: 2 and SEQ ID NO: 4, and having at least one of the biological
activities set forth herein.
In one embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab1, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 1 and the variable heavy chain sequence of SEQ ID NO: 3. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 1 and/or
SEQ ID NO: 3 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab1. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab1 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab2
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYDNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSSGDCFVFGGGTKVEIK
R (SEQ ID NO: 11).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYDNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSSGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 12).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGLDLSSYYMQWVRQAPGKGLEWVGVIGIN
DNTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 13).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGLDLSSYYMQWVRQAPGKGLEWVGVIGIN
DNTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 14).
Also described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
; SEQ ID NO: 16; and SEQ ID NO: 17 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 11 or the light chain sequence of SEQ ID NO: 12, and/or one or more of
the polypeptide sequences of SEQ ID NO: 18; SEQ ID NO: 19; and SEQ ID NO: 20 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 13 or the heavy chain sequence of
SEQ ID NO: 14, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 11 or SEQ ID NO: 12. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 13 or SEQ ID NO: 14.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 15;
SEQ ID NO: 16; and SEQ ID NO: 17 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 11 or the light chain sequence of SEQ ID NO: 12.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 18;
SEQ ID NO: 19; and SEQ ID NO: 20 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 13 or the heavy chain sequence of SEQ ID NO: 14.
Also described are antibody fragments which include one or more of the
antibody fragments described herein for the treatment or prevention of CGRP-associated
diarrhea. In one embodiment described, fragments of the antibodies having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following antibody fragments: the variable light chain region of SEQ
ID NO: 11; the variable heavy chain region of SEQ ID NO: 13; the complementarity-
determining regions (SEQ ID NO: 15; SEQ ID NO: 16; and SEQ ID NO: 17) of the
variable light chain region of SEQ ID NO: 11; and the complementarity-determining
regions (SEQ ID NO: 18; SEQ ID NO: 19; and SEQ ID NO: 20) of the variable heavy
chain region of SEQ ID NO: 13.
In one embodiment described, the humanized anti- CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab2, comprising, or alternatively
consisting of, SEQ ID NO: 12 and SEQ ID NO: 14, and having at least one of the
biological activities set forth herein.
In one embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab2, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 11 and the variable heavy chain sequence of SEQ ID NO: 13. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 11 and/or
SEQ ID NO: 13 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab2. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab2 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab3
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYDNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSSGDCFVFGGGTKVEIK
R (SEQ ID NO: 21).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYDNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSSGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 22).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGLDLSSYYMQWVRQAPGKGLEWVGVIGIN
DNTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 23).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGLDLSSYYMQWVRQAPGKGLEWVGVIGIN
DNTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDARVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 24).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
; SEQ ID NO: 26; and SEQ ID NO: 27 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 21 or the light chain sequence of SEQ ID NO: 22, and/or one or more of
the polypeptide sequences of SEQ ID NO: 28; SEQ ID NO: 29; and SEQ ID NO: 30 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 23 or the heavy chain sequence of
SEQ ID NO: 24, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof for the treatment or prevention of
CGRP-associated diarrhea comprise, or alternatively consist of, combinations of one or
more of the CDRs, the variable heavy and variable light chain sequences, and the heavy
and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 21 or SEQ ID NO: 22. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 23 or SEQ ID NO: 24.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP comprise, or alternatively consist of, one or more of the polypeptide
sequences of SEQ ID NO: 25; SEQ ID NO: 26; and SEQ ID NO: 27 which correspond to
the complementarity-determining regions (CDRs, or hypervariable regions) of the variable
light chain sequence of SEQ ID NO: 21 or the light chain sequence of SEQ ID NO: 22.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 28;
SEQ ID NO: 29; and SEQ ID NO: 30 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 23 or the heavy chain sequence of SEQ ID NO: 24.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 21; the
variable heavy chain region of SEQ ID NO: 23; the complementarity-determining regions
(SEQ ID NO: 25; SEQ ID NO: 26; and SEQ ID NO: 27) of the variable light chain region
of SEQ ID NO: 21; and the complementarity-determining regions (SEQ ID NO: 28; SEQ
ID NO: 29; and SEQ ID NO: 30) of the variable heavy chain region of SEQ ID NO: 23.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab3, comprising, or alternatively
consisting of, SEQ ID NO: 22 and SEQ ID NO: 24, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab3, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 21 and the variable heavy chain sequence of SEQ ID NO: 23. This embodiment
further contemplates additions, deletions, and variants of SEQ ID NO: 21 and/or SEQ ID
NO: 23 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab3. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab3 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab4
In one embodiment, described are chimeric antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQTPSPVSAAVGSTVTINCQASQSVYHNTYLAWYQQKPGQPPKQLIYDASTL
ASGVPSRFSGSGSGTQFTLTISGVQCNDAAAYYCLGSYDCTNGDCFVFGGGTEVV
VKR (SEQ ID NO: 31).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQTPSPVSAAVGSTVTINCQASQSVYHNTYLAWYQQKPGQPPKQLIYDASTL
ASGVPSRFSGSGSGTQFTLTISGVQCNDAAAYYCLGSYDCTNGDCFVFGGGTEVV
VKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQ
ESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 32).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCSVSGIDLSGYYMNWVRQAPGKGLEWIGVIGINGAT
YYASWAKGRFTISKTSSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSS
(SEQ ID NO: 33).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a heavy chain
sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCSVSGIDLSGYYMNWVRQAPGKGLEWIGVIGINGAT
YYASWAKGRFTISKTSSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSSAST
KGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQS
SGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCPPCPAPE
LLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAK
TKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQP
REPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLD
SDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK (SEQ ID
NO: 34).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
; SEQ ID NO: 36; and SEQ ID NO: 37 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 31 or the light chain sequence of SEQ ID NO: 32, and/or one or more of
the polypeptide sequences of SEQ ID NO: 38; SEQ ID NO: 39; and SEQ ID NO: 40 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 33 or the heavy chain sequence of
SEQ ID NO: 34, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 31 or SEQ ID NO: 32. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 33 or SEQ ID NO: 34.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 35;
SEQ ID NO: 36; and SEQ ID NO: 37 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 31 or the light chain sequence of SEQ ID NO: 32.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 38;
SEQ ID NO: 39; and SEQ ID NO: 40 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 33 or the heavy chain sequence of SEQ ID NO: 34.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 31; the
variable heavy chain region of SEQ ID NO: 33; the complementarity-determining regions
(SEQ ID NO: 35; SEQ ID NO: 36; and SEQ ID NO: 37) of the variable light chain region
of SEQ ID NO: 31; and the complementarity-determining regions (SEQ ID NO: 38; SEQ
ID NO: 39; and SEQ ID NO: 40) of the variable heavy chain region of SEQ ID NO: 33.
In one embodiment described, the humanized anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab4, comprising, or alternatively
consisting of, SEQ ID NO: 32 and SEQ ID NO: 34, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab4, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 31 and the variable heavy chain sequence of SEQ ID NO: 33. This embodiment
further contemplates additions, deletions, and variants of SEQ ID NO: 31 and/or SEQ ID
NO: 33 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab4. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab4 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab5
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYHNTYLAWYQQKPGKVPKQLIYDASTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCTNGDCFVFGGGTKVEIK
R (SEQ ID NO: 41).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYHNTYLAWYQQKPGKVPKQLIYDASTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCTNGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 42).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSGYYMNWVRQAPGKGLEWVGVIGIN
GATYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 43).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSGYYMNWVRQAPGKGLEWVGVIGIN
GATYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 44).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
45; SEQ ID NO: 46; and SEQ ID NO: 47 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 41 or the light chain sequence of SEQ ID NO: 42, and/or one or more of
the polypeptide sequences of SEQ ID NO: 48; SEQ ID NO: 49; and SEQ ID NO: 50 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 43 or the heavy chain sequence of
SEQ ID NO: 44, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 41 or SEQ ID NO: 42. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 43 or SEQ ID NO: 44.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 45;
SEQ ID NO: 46; and SEQ ID NO: 47 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 41 or the light chain sequence of SEQ ID NO: 42.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 48;
SEQ ID NO: 49; and SEQ ID NO: 50 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 43 or the heavy chain sequence of SEQ ID NO: 44.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 41; the
variable heavy chain region of SEQ ID NO: 43; the complementarity-determining regions
(SEQ ID NO: 45; SEQ ID NO: 46; and SEQ ID NO: 47) of the variable light chain region
of SEQ ID NO: 41; and the complementarity-determining regions (SEQ ID NO: 48; SEQ
ID NO: 49; and SEQ ID NO: 50) of the variable heavy chain region of SEQ ID NO: 43.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab5, comprising, or alternatively
consisting of, SEQ ID NO: 42 and SEQ ID NO: 44, and having at least one of the
biological activities set forth herein.
In one embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab5, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 41 and the variable heavy chain sequence of SEQ ID NO: 43. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 41 and/or
SEQ ID NO: 43 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab5. In another embodiment described, anti-CGRP antibodies such as Ab5 or
Fab fragments thereof may be produced via expression in mammalian cells such as CHO,
NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab6
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYHNTYLAWYQQKPGKVPKQLIYDASTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCTNGDCFVFGGGTKVEIK
R (SEQ ID NO: 51).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYHNTYLAWYQQKPGKVPKQLIYDASTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCTNGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 52).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSGYYMNWVRQAPGKGLEWVGVIGIN
GATYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 53).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSGYYMNWVRQAPGKGLEWVGVIGIN
GATYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDARVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 54).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
55; SEQ ID NO: 56; and SEQ ID NO: 57 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 51 or the light chain sequence of SEQ ID NO: 52, and/or one or more of
the polypeptide sequences of SEQ ID NO: 58; SEQ ID NO: 59; and SEQ ID NO: 60 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 53 or the heavy chain sequence of
SEQ ID NO: 54, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 51 or SEQ ID NO: 52. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 53 or SEQ ID NO: 54.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 55;
SEQ ID NO: 56; and SEQ ID NO: 57 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 51 or the light chain sequence of SEQ ID NO: 52.
In a further embodiment described, fragments of the antibody for the treatment
or prevention of CGRP-associated diarrhea having binding specificity to CGRP comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 58;
SEQ ID NO: 59; and SEQ ID NO: 60 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 53 or the heavy chain sequence of SEQ ID NO: 54.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea comprise, or
alternatively consist of, one, two, three or more, including all of the following antibody
fragments: the variable light chain region of SEQ ID NO: 51; the variable heavy chain
region of SEQ ID NO: 53; the complementarity-determining regions (SEQ ID NO: 55;
SEQ ID NO: 56; and SEQ ID NO: 57) of the variable light chain region of SEQ ID NO:
51; and the complementarity-determining regions (SEQ ID NO: 58; SEQ ID NO: 59; and
SEQ ID NO: 60) of the variable heavy chain region of SEQ ID NO: 53.
In one embodiment described, the humanized anti- CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab6, comprising, or alternatively
consisting of, SEQ ID NO: 52 and SEQ ID NO: 54, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab6, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 51 and the variable heavy chain sequence of SEQ ID NO: 53. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 51 and/or
SEQ ID NO: 53 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab6. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab6 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab7
In one embodiment, described are chimeric antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQTASPVSAAVGSTVTINCQASQSVYNYNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFKGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSTGDCFVFGGGTEVV
VKR (SEQ ID NO: 61).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQTASPVSAAVGSTVTINCQASQSVYNYNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFKGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSTGDCFVFGGGTEVV
VKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQ
ESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 62).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QEQLKESGGRLVTPGTSLTLTCTVSGIDLSNHYMQWVRQAPGKGLEWIGVVGING
RTYYASWAKGRFTISRTSSTTVDLKMTRLTTEDTATYFCARGDIWGPGTLVTVSS
(SEQ ID NO: 63).
Also described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
QEQLKESGGRLVTPGTSLTLTCTVSGIDLSNHYMQWVRQAPGKGLEWIGVVGING
RTYYASWAKGRFTISRTSSTTVDLKMTRLTTEDTATYFCARGDIWGPGTLVTVSSA
STKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVL
QSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCPPCP
APELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVH
NAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAK
GQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPP
VLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK (SEQ
ID NO: 64).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
65; SEQ ID NO: 66; and SEQ ID NO: 67 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 61 or the light chain sequence of SEQ ID NO: 62, and/or one or more of
the polypeptide sequences of SEQ ID NO: 68; SEQ ID NO: 69; and SEQ ID NO: 70 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 63 or the heavy chain sequence of
SEQ ID NO: 64, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 61 or SEQ ID NO: 62. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 63 or SEQ ID NO: 64.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 65;
SEQ ID NO: 66; and SEQ ID NO: 67 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 61 or the light chain sequence of SEQ ID NO: 62.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 68;
SEQ ID NO: 69; and SEQ ID NO: 70 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 63 or the heavy chain sequence of SEQ ID NO: 64.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 61; the
variable heavy chain region of SEQ ID NO: 63; the complementarity-determining regions
(SEQ ID NO: 65; SEQ ID NO: 66; and SEQ ID NO: 67) of the variable light chain region
of SEQ ID NO: 61; and the complementarity-determining regions (SEQ ID NO: 68; SEQ
ID NO: 69; and SEQ ID NO: 70) of the variable heavy chain region of SEQ ID NO: 63.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab7, comprising, or alternatively
consisting of, SEQ ID NO: 62 and SEQ ID NO: 64, and having at least one of the
biological activities set forth herein.
In one embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab7, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 61 and the variable heavy chain sequence of SEQ ID NO: 63. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 61 and/or
SEQ ID NO: 63 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab7. In another embodiment described, anti-CGRP antibodies such as Ab7 or
Fab fragments thereof may be produced via expression in mammalian cells such as CHO,
NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab8
In one embodiment, described are chimeric or humanized antibodies for the
treatment or prevention of CGRP-associated diarrhea having binding specificity to CGRP
and possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYNYNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSTGDCFVFGGGTKVEIK
R (SEQ ID NO: 71).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQSVYNYNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSTGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 72).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSNHYMQWVRQAPGKGLEWVGVVGIN
GRTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 73).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDLSNHYMQWVRQAPGKGLEWVGVVGIN
GRTYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 74).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
75; SEQ ID NO: 76; and SEQ ID NO: 77 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 71 or the light chain sequence of SEQ ID NO: 72, and/or one or more of
the polypeptide sequences of SEQ ID NO: 78; SEQ ID NO: 79; and SEQ ID NO: 80 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 73 or the heavy chain sequence of
SEQ ID NO: 74, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof comprise, or alternatively consist
of, combinations of one or more of the CDRs, the variable heavy and variable light chain
sequences, and the heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 71 or SEQ ID NO: 72. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 73 or SEQ ID NO: 74.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 75;
SEQ ID NO: 76; and SEQ ID NO: 77 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 71 or the light chain sequence of SEQ ID NO: 72.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 78;
SEQ ID NO: 79; and SEQ ID NO: 80 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 73 or the heavy chain sequence of SEQ ID NO: 74.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea comprise, or
alternatively consist of, one, two, three or more, including all of the following antibody
fragments: the variable light chain region of SEQ ID NO: 71; the variable heavy chain
region of SEQ ID NO: 73; the complementarity-determining regions (SEQ ID NO: 75;
SEQ ID NO: 76; and SEQ ID NO: 77) of the variable light chain region of SEQ ID NO:
71; and the complementarity-determining regions (SEQ ID NO: 78; SEQ ID NO: 79; and
SEQ ID NO: 80) of the variable heavy chain region of SEQ ID NO: 73.
In one embodiment described, the humanized anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab8, comprising, or alternatively
consisting of, SEQ ID NO: 72 and SEQ ID NO: 74, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab8, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 71 and the variable heavy chain sequence of SEQ ID NO: 73. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 71 and/or
SEQ ID NO: 73 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab8. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab8 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab9
In one embodiment, described are chimeric antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQTPSPVSAAVGSTVTINCQASQNVYNNNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFRGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSRGDCFVFGGGTEVV
VKR (SEQ ID NO: 81).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQTPSPVSAAVGSTVTINCQASQNVYNNNYLAWYQQKPGQPPKQLIYSTSTL
ASGVSSRFRGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSRGDCFVFGGGTEVV
VKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQ
ESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 82).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCTVSGIGLSSYYMQWVRQSPGRGLEWIGVIGSDGKT
YYATWAKGRFTISKTSSTTVDLRMASLTTEDTATYFCTRGDIWGPGTLVTVSS
(SEQ ID NO: 83).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a heavy chain
sequence comprising the sequence set forth below:
QSLEESGGRLVTPGTPLTLTCTVSGIGLSSYYMQWVRQSPGRGLEWIGVIGSDGKT
YYATWAKGRFTISKTSSTTVDLRMASLTTEDTATYFCTRGDIWGPGTLVTVSSAST
KGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQS
SGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCPPCPAPE
LLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNAK
TKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQP
REPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVLD
SDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK (SEQ ID
NO: 84).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
85; SEQ ID NO: 86; and SEQ ID NO: 87 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 81 or the light chain sequence of SEQ ID NO: 82, and/or one or more of
the polypeptide sequences of SEQ ID NO: 88; SEQ ID NO: 89; and SEQ ID NO: 90 which
correspond to the complementarity-determining regions (CDRs, or hypervariable regions)
of the variable heavy chain sequence of SEQ ID NO: 83 or the heavy chain sequence of
SEQ ID NO: 84, or combinations of these polypeptide sequences. In another embodiment
described, the antibodies described or fragments thereof for the treatment or prevention of
CGRP-associated diarrhea comprise, or alternatively consist of, combinations of one or
more of the CDRs, the variable heavy and variable light chain sequences, and the heavy
and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described for the treatment or prevention of CGRP-
associated diarrhea comprise, or alternatively consist of, the polypeptide sequence of SEQ
ID NO: 81 or SEQ ID NO: 82. In another embodiment described, antibody fragments
described comprise, or alternatively consist of, the polypeptide sequence of SEQ ID NO:
83 or SEQ ID NO: 84.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 85;
SEQ ID NO: 86; and SEQ ID NO: 87 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 81 or the light chain sequence of SEQ ID NO: 82.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 88;
SEQ ID NO: 89; and SEQ ID NO: 90 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 83 or the heavy chain sequence of SEQ ID NO: 84.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described are fragments of the antibodies having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea comprise, or
alternatively consist of, one, two, three or more, including all of the following antibody
fragments: the variable light chain region of SEQ ID NO: 81; the variable heavy chain
region of SEQ ID NO: 83; the complementarity-determining regions (SEQ ID NO: 85;
SEQ ID NO: 86; and SEQ ID NO: 87) of the variable light chain region of SEQ ID NO:
81; and the complementarity-determining regions (SEQ ID NO: 88; SEQ ID NO: 89; and
SEQ ID NO: 90) of the variable heavy chain region of SEQ ID NO: 83.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab9, comprising, or alternatively
consisting of, SEQ ID NO: 82 and SEQ ID NO: 84, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab9, the Fab fragment for the treatment or prevention of CGRP-associated
diarrhea includes the variable light chain sequence of SEQ ID NO: 81 and the variable
heavy chain sequence of SEQ ID NO: 83. This embodiment described further
contemplates additions, deletions, and variants of SEQ ID NO: 81 and/or SEQ ID NO: 83
in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab9. In another embodiment described, anti-CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea such as Ab9 or Fab fragments thereof may be
produced via expression in mammalian cells such as CHO, NSO or HEK 293 cells, fungal,
insect, or microbial systems such as yeast cells (for example diploid yeast such as diploid
Pichia) and other yeast strains. Suitable Pichia species include, but are not limited to,
Pichia pastoris.
Antibody Ab10
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQNVYNNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSRGDCFVFGGGTKVEIK
R (SEQ ID NO: 91).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQNVYNNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSRGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 92).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIGLSSYYMQWVRQAPGKGLEWVGVIGSD
GKTYYATWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCTRGDIWGQGTLVT
VSS (SEQ ID NO: 93).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIGLSSYYMQWVRQAPGKGLEWVGVIGSD
GKTYYATWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCTRGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 94).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
95; SEQ ID NO: 96; and SEQ ID NO: 97 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 91 or the light chain sequence of SEQ ID NO: 92, and/or one or more of
the polypeptide sequences of SEQ ID NO: 98; SEQ ID NO: 99; and SEQ ID NO: 100
which correspond to the complementarity-determining regions (CDRs, or hypervariable
regions) of the variable heavy chain sequence of SEQ ID NO: 93 or the heavy chain
sequence of SEQ ID NO: 94, or combinations of these polypeptide sequences. In another
embodiment described, the antibodies described or fragments thereof comprise, or
alternatively consist of, combinations of one or more of the CDRs, the variable heavy and
variable light chain sequences, and the heavy and light chain sequences set forth above,
including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 91 or SEQ ID NO: 92. In another embodiment
described, antibody fragments described for the treatment or prevention of CGRP-
associated diarrhea comprise, or alternatively consist of, the polypeptide sequence of SEQ
ID NO: 93 or SEQ ID NO: 94.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 95;
SEQ ID NO: 96; and SEQ ID NO: 97 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 91 or the light chain sequence of SEQ ID NO: 92.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 98;
SEQ ID NO: 99; and SEQ ID NO: 100 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 93 or the heavy chain sequence of SEQ ID NO: 94.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 91; the
variable heavy chain region of SEQ ID NO: 93; the complementarity-determining regions
(SEQ ID NO: 95; SEQ ID NO: 96; and SEQ ID NO: 97) of the variable light chain region
of SEQ ID NO: 91; and the complementarity-determining regions (SEQ ID NO: 98; SEQ
ID NO: 99; and SEQ ID NO: 100) of the variable heavy chain region of SEQ ID NO: 93.
In one embodiment described, the humanized anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab10, comprising, or alternatively
consisting of, SEQ ID NO: 92 and SEQ ID NO: 94, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab10, the Fab fragment for the treatment or prevention of CGRP-associated
diarrhea includes the variable light chain sequence of SEQ ID NO: 91 and the variable
heavy chain sequence of SEQ ID NO: 93. This embodiment described further
contemplates additions, deletions, and variants of SEQ ID NO: 91 and/or SEQ ID NO: 93
in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab10. In another embodiment described, anti-CGRP antibodies such as Ab10
or Fab fragments thereof may be produced via expression in mammalian cells such as
CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab11
In one embodiment, described are chimeric antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQTASPVSPAVGSTVTINCRASQSVYYNNYLAWYQQKPGQPPKQLIYSTSTLA
SGVSSRFKGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSNGDCFVFGGGTEVVV
KR (SEQ ID NO: 101).
Also described are chimeric antibodies having binding specificity to CGRP and
possessing a light chain sequence comprising the sequence set forth below:
QVLTQTASPVSPAVGSTVTINCRASQSVYYNNYLAWYQQKPGQPPKQLIYSTSTLA
SGVSSRFKGSGSGTQFTLTISDVQCDDAATYYCLGSYDCSNGDCFVFGGGTEVVV
KRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQE
SVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 102).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QSLEESGGRLVTPGGSLTLTCTVSGIDVTNYYMQWVRQAPGKGLEWIGVIGVNGK
RYYASWAKGRFTISKTSSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSS
(SEQ ID NO: 103).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a heavy chain
sequence comprising the sequence set forth below:
QSLEESGGRLVTPGGSLTLTCTVSGIDVTNYYMQWVRQAPGKGLEWIGVIGVNGK
RYYASWAKGRFTISKTSSTTVDLKMTSLTTEDTATYFCARGDIWGPGTLVTVSSAS
TKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQ
SSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCPPCPAP
ELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVEVHNA
KTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISKAKGQ
PREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKTTPPVL
DSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK (SEQ ID
NO: 104).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
105; SEQ ID NO: 106; and SEQ ID NO: 107 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 101 or the light chain sequence of SEQ ID NO: 102, and/or one or more of
the polypeptide sequences of SEQ ID NO: 108; SEQ ID NO: 109; and SEQ ID NO: 110
which correspond to the complementarity-determining regions (CDRs, or hypervariable
regions) of the variable heavy chain sequence of SEQ ID NO: 103 or the heavy chain
sequence of SEQ ID NO: 104, or combinations of these polypeptide sequences. In another
embodiment described, the antibodies described or fragments thereof comprise, or
alternatively consist of, combinations of one or more of the CDRs, the variable heavy and
variable light chain sequences, and the heavy and light chain sequences set forth above,
including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 101 or SEQ ID NO: 102. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 103 or SEQ ID NO: 104.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 105;
SEQ ID NO: 106; and SEQ ID NO: 107 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 101 or the light chain sequence of SEQ ID NO: 102.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 108;
SEQ ID NO: 109; and SEQ ID NO: 110 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 103 or the heavy chain sequence of SEQ ID NO: 104.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea comprise, or
alternatively consist of, one, two, three or more, including all of the following antibody
fragments: the variable light chain region of SEQ ID NO: 101; the variable heavy chain
region of SEQ ID NO: 103; the complementarity-determining regions (SEQ ID NO: 105;
SEQ ID NO: 106; and SEQ ID NO: 107) of the variable light chain region of SEQ ID NO:
101; and the complementarity-determining regions (SEQ ID NO: 108; SEQ ID NO: 109;
and SEQ ID NO: 110) of the variable heavy chain region of SEQ ID NO: 103.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab11, comprising, or alternatively
consisting of, SEQ ID NO: 102 and SEQ ID NO: 104, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab11, the Fab fragment for the treatment or prevention of CGRP-associated
diarrhea includes the variable light chain sequence of SEQ ID NO: 101 and the variable
heavy chain sequence of SEQ ID NO: 103. This embodiment described further
contemplates additions, deletions, and variants of SEQ ID NO: 101 and/or SEQ ID NO:
103 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab11. In another embodiment described, anti-CGRP antibodies such as Ab11
or Fab fragments thereof may be produced via expression in mammalian cells such as
CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab12
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCRASQSVYYNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSNGDCFVFGGGTKVEIK
R (SEQ ID NO: 111).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCRASQSVYYNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSNGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 112).
Further described are humanized antibodies having binding specificity to CGRP
and possessing a variable heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDVTNYYMQWVRQAPGKGLEWVGVIGVN
GKRYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSS (SEQ ID NO: 113).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIDVTNYYMQWVRQAPGKGLEWVGVIGVN
GKRYYASWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCARGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 114).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
115; SEQ ID NO: 116; and SEQ ID NO: 117 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 111 or the light chain sequence of SEQ ID NO: 112, and/or one or more of
the polypeptide sequences of SEQ ID NO: 118; SEQ ID NO: 119; and SEQ ID NO: 120
which correspond to the complementarity-determining regions (CDRs, or hypervariable
regions) of the variable heavy chain sequence of SEQ ID NO: 113 or the heavy chain
sequence of SEQ ID NO: 114, or combinations of these polypeptide sequences. In another
embodiment described, the antibodies described or fragments thereof for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, combinations
of one or more of the CDRs, the variable heavy and variable light chain sequences, and the
heavy and light chain sequences set forth above, including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described for the treatment or prevention of CGRP-
associated diarrhea comprise, or alternatively consist of, the polypeptide sequence of SEQ
ID NO: 111 or SEQ ID NO: 112. In another embodiment described, antibody fragments
described comprise, or alternatively consist of, the polypeptide sequence of SEQ ID NO:
113 or SEQ ID NO: 114.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 115;
SEQ ID NO: 116; and SEQ ID NO: 117 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 111 or the light chain sequence of SEQ ID NO: 112.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 118;
SEQ ID NO: 119; and SEQ ID NO: 120 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 113 or the heavy chain sequence of SEQ ID NO: 114.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea comprise, or
alternatively consist of, one, two, three or more, including all of the following antibody
fragments: the variable light chain region of SEQ ID NO: 111; the variable heavy chain
region of SEQ ID NO: 113; the complementarity-determining regions (SEQ ID NO: 115;
SEQ ID NO: 116; and SEQ ID NO: 117) of the variable light chain region of SEQ ID NO:
111; and the complementarity-determining regions (SEQ ID NO: 118; SEQ ID NO: 119;
and SEQ ID NO: 120) of the variable heavy chain region of SEQ ID NO: 113.
In one embodiment described, the humanized anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab12, comprising, or alternatively
consisting of, SEQ ID NO: 112 and SEQ ID NO: 114, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab12, the Fab fragment for the treatment or prevention of CGRP-associated
diarrhea includes the variable light chain sequence of SEQ ID NO: 111 and the variable
heavy chain sequence of SEQ ID NO: 113. This embodiment described further
contemplates additions, deletions, and variants of SEQ ID NO: 111 and/or SEQ ID NO:
113 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab12. In another embodiment described, anti-CGRP antibodies for the
treatment or prevention of CGRP-associated diarrhea such as Ab12 or Fab fragments
thereof may be produced via expression in mammalian cells such as CHO, NSO or HEK
293 cells, fungal, insect, or microbial systems such as yeast cells (for example diploid yeast
such as diploid Pichia) and other yeast strains. Suitable Pichia species include, but are not
limited to, Pichia pastoris.
Antibody Ab13
In one embodiment, described are chimeric antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
AIVMTQTPSSKSVPVGDTVTINCQASESLYNNNALAWFQQKPGQPPKRLIYDASKL
ASGVPSRFSGGGSGTQFTLTISGVQCDDAATYYCGGYRSDSVDGVAFAGGTEVVV
KR (SEQ ID NO: 121).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
AIVMTQTPSSKSVPVGDTVTINCQASESLYNNNALAWFQQKPGQPPKRLIYDASKL
ASGVPSRFSGGGSGTQFTLTISGVQCDDAATYYCGGYRSDSVDGVAFAGGTEVVV
KRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQE
SVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 122).
Further described are chimeric antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
QSVEESGGGLVQPEGSLTLTCTASGFDFSSNAMWWVRQAPGKGLEWIGIIYNGDG
STYYASWVNGRFSISKTSSTTVTLQLNSLTVADTATYYCARDLDLWGPGTLVTVS
S (SEQ ID NO: 123).
Also described are chimeric antibodies for the treatment or prevention of CGRP-
associated diarrhea having binding specificity to CGRP and possessing a heavy chain
sequence comprising the sequence set forth below:
QSVEESGGGLVQPEGSLTLTCTASGFDFSSNAMWWVRQAPGKGLEWIGCIYNGD
GSTYYASWVNGRFSISKTSSTTVTLQLNSLTVADTATYYCARDLDLWGPGTLVTV
SSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFP
AVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTHTCP
PCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGVE
VHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTISK
AKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYKT
TPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 124).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
125; SEQ ID NO: 126; and SEQ ID NO: 127 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 121 or the light chain sequence of SEQ ID NO: 122, and/or one or more of
the polypeptide sequences of SEQ ID NO: 128; SEQ ID NO: 129; and SEQ ID NO: 130
which correspond to the complementarity-determining regions (CDRs, or hypervariable
regions) of the variable heavy chain sequence of SEQ ID NO: 123 or the heavy chain
sequence of SEQ ID NO: 124, or combinations of these polypeptide sequences. In another
embodiment described, the antibodies described or fragments thereof comprise, or
alternatively consist of, combinations of one or more of the CDRs, the variable heavy and
variable light chain sequences, and the heavy and light chain sequences set forth above,
including all of them.
Also described are fragments of the antibody for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP. In one embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 121 or SEQ ID NO: 122. In another embodiment
described, antibody fragments described comprise, or alternatively consist of, the
polypeptide sequence of SEQ ID NO: 123 or SEQ ID NO: 124.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 125;
SEQ ID NO: 126; and SEQ ID NO: 127 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 121 or the light chain sequence of SEQ ID NO: 122.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 128;
SEQ ID NO: 129; and SEQ ID NO: 130 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 123 or the heavy chain sequence of SEQ ID NO: 124.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 121; the
variable heavy chain region of SEQ ID NO: 123; the complementarity-determining regions
(SEQ ID NO: 125; SEQ ID NO: 126; and SEQ ID NO: 127) of the variable light chain
region of SEQ ID NO: 121; and the complementarity-determining regions (SEQ ID NO:
128; SEQ ID NO: 129; and SEQ ID NO: 130) of the variable heavy chain region of SEQ
ID NO: 123.
In one embodiment described, the chimeric anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab13, comprising, or alternatively
consisting of, SEQ ID NO: 122 and SEQ ID NO: 124, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments comprise, or
alternatively consist of, Fab (fragment antigen binding) fragments having binding
specificity for CGRP. With respect to antibody Ab13, the Fab fragment for the treatment
or prevention of CGRP-associated diarrhea includes the variable light chain sequence of
SEQ ID NO: 121 and the variable heavy chain sequence of SEQ ID NO: 123. This
embodiment described further contemplates additions, deletions, and variants of SEQ ID
NO: 121 and/or SEQ ID NO: 123 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab13. In another embodiment described, anti-CGRP antibodies for the
treatment or prevention of CGRP-associated diarrhea such as Ab13 or Fab fragments
thereof may be produced via expression in mammalian cells such as CHO, NSO or HEK
293 cells, fungal, insect, or microbial systems such as yeast cells (for example diploid yeast
such as diploid Pichia) and other yeast strains. Suitable Pichia species include, but are not
limited to, Pichia pastoris.
Antibody Ab14
In one embodiment, described are humanized antibodies for the treatment or
prevention of CGRP-associated diarrhea having binding specificity to CGRP and
possessing a variable light chain sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQNVYNNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSRGDCFVFGGGTKVEIK
R (SEQ ID NO: 131).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a light chain
sequence comprising the sequence set forth below:
QVLTQSPSSLSASVGDRVTINCQASQNVYNNNYLAWYQQKPGKVPKQLIYSTSTL
ASGVPSRFSGSGSGTDFTLTISSLQPEDVATYYCLGSYDCSRGDCFVFGGGTKVEIK
RTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQES
VTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 132).
Further described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a variable
heavy chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIGLSSYYMQWVRQAPGKGLEWVGVIGSD
GKTYYATWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCTRGDIWGQGTLVT
VSS (SEQ ID NO: 133).
Also described are humanized antibodies for the treatment or prevention of
CGRP-associated diarrhea having binding specificity to CGRP and possessing a heavy
chain sequence comprising the sequence set forth below:
EVQLVESGGGLVQPGGSLRLSCAVSGIGLSSYYMQWVRQAPGKGLEWVGVIGSD
GKTYYATWAKGRFTISRDNSKTTVYLQMNSLRAEDTAVYFCTRGDIWGQGTLVT
VSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTF
PAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDARVEPKSCDKTHTC
PPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYVDGV
EVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIEKTIS
KAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPENNYK
TTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLSPGK
(SEQ ID NO: 134).
Further described are antibodies for the treatment or prevention of CGRP-
associated diarrhea comprising one or more of the polypeptide sequences of SEQ ID NO:
135; SEQ ID NO: 136; and SEQ ID NO: 137 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 131 or the light chain sequence of SEQ ID NO: 132, and/or one or more of
the polypeptide sequences of SEQ ID NO: 138; SEQ ID NO: 139; and SEQ ID NO: 140
which correspond to the complementarity-determining regions (CDRs, or hypervariable
regions) of the variable heavy chain sequence of SEQ ID NO: 133 or the heavy chain
sequence of SEQ ID NO: 134, or combinations of these polypeptide sequences. In another
embodiment described, the antibodies described or fragments thereof comprise, or
alternatively consist of, combinations of one or more of the CDRs, the variable heavy and
variable light chain sequences, and the heavy and light chain sequences set forth above,
including all of them.
Also described are fragments of the antibody having binding specificity to
CGRP for the treatment or prevention of CGRP-associated diarrhea. In one embodiment
described, antibody fragments described for the treatment or prevention of CGRP-
associated diarrhea comprise, or alternatively consist of, the polypeptide sequence of SEQ
ID NO: 131 or SEQ ID NO: 132. In another embodiment described, antibody fragments
described comprise, or alternatively consist of, the polypeptide sequence of SEQ ID NO:
133 or SEQ ID NO: 134.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 135;
SEQ ID NO: 136; and SEQ ID NO: 137 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable light chain sequence
of SEQ ID NO: 131 or the light chain sequence of SEQ ID NO: 132.
In a further embodiment described, fragments of the antibody having binding
specificity to CGRP for the treatment or prevention of CGRP-associated diarrhea comprise,
or alternatively consist of, one or more of the polypeptide sequences of SEQ ID NO: 138;
SEQ ID NO: 139; and SEQ ID NO: 140 which correspond to the complementarity-
determining regions (CDRs, or hypervariable regions) of the variable heavy chain sequence
of SEQ ID NO: 133 or the heavy chain sequence of SEQ ID NO: 134.
Also described are antibody fragments for the treatment or prevention of CGRP-
associated diarrhea which include one or more of the antibody fragments described herein.
In one embodiment described, fragments of the antibodies having binding specificity to
CGRP comprise, or alternatively consist of, one, two, three or more, including all of the
following antibody fragments: the variable light chain region of SEQ ID NO: 131; the
variable heavy chain region of SEQ ID NO: 133; the complementarity-determining regions
(SEQ ID NO: 135; SEQ ID NO: 136; and SEQ ID NO: 137) of the variable light chain
region of SEQ ID NO: 131; and the complementarity-determining regions (SEQ ID NO:
138; SEQ ID NO: 139; and SEQ ID NO: 140) of the variable heavy chain region of SEQ
ID NO: 133.
In one embodiment described, the humanized anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is Ab14, comprising, or alternatively
consisting of, SEQ ID NO: 132 and SEQ ID NO: 134, and having at least one of the
biological activities set forth herein.
In a further embodiment described, antibody fragments for the treatment or
prevention of CGRP-associated diarrhea comprise, or alternatively consist of, Fab
(fragment antigen binding) fragments having binding specificity for CGRP. With respect
to antibody Ab14, the Fab fragment includes the variable light chain sequence of SEQ ID
NO: 131 and the variable heavy chain sequence of SEQ ID NO: 133. This embodiment
described further contemplates additions, deletions, and variants of SEQ ID NO: 131
and/or SEQ ID NO: 133 in said Fab while retaining binding specificity for CGRP.
In one embodiment described herein (infra), Fab fragments for the treatment or
prevention of CGRP-associated diarrhea may be produced by enzymatic digestion (e.g.,
papain) of Ab14. In another embodiment described, anti-CGRP antibodies such as Ab14
or Fab fragments thereof may be produced via expression in mammalian cells such as
CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells (for
example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
In another embodiment, antibody fragments may be present in one or more of
the following non-limiting forms: Fab, Fab', F(ab')2, Fv and single chain Fv antibody
forms. In a preferred embodiment, the anti-CGRP antibodies described herein for the
treatment or prevention of CGRP-associated diarrhea further comprises the kappa constant
light chain sequence comprising the sequence set forth below:
VAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGN
SQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC
(SEQ ID NO: 283).
In another preferred embodiment, the anti-CGRP antibodies described herein for
the treatment or prevention of CGRP-associated diarrhea further comprises the gamma-1
constant heavy chain polypeptide sequence comprising the sequence set forth below:
ASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGV
HTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKT
HTCPPCPAPELLGGPSVFLFPPKPKDTLMISRTPEVTCVVVDVSHEDPEVKFNWYV
DGVEVHNAKTKPREEQYASTYRVVSVLTVLHQDWLNGKEYKCKVSNKALPAPIE
KTISKAKGQPREPQVYTLPPSREEMTKNQVSLTCLVKGFYPSDIAVEWESNGQPEN
NYKTTPPVLDSDGSFFLYSKLTVDKSRWQQGNVFSCSVMHEALHNHYTQKSLSLS
PGK (SEQ ID NO: 284).
In another embodiment, described is an isolated anti-CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea comprising a VH polypeptide
sequence selected from: SEQ ID NO: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123, or
133, or a variant thereof; and further comprising a VL polypeptide sequence selected from:
SEQ ID NO: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, or a variant
thereof, wherein one or more of the framework residues (FR residues) in said VH or VL
polypeptide has been substituted with another amino acid residue resulting in an anti-
CGRP antibody that specifically binds CGRP. Described are humanized and chimeric
forms of these antibodies for the treatment or prevention of CGRP-associated diarrhea.
The chimeric antibodies may include an Fc derived from IgG1, IgG2, IgG3, IgG4, IgG5,
IgG6, IgG7, IgG8, IgG9, IgG10, IgG11, IgG12, IgG13, IgG14, IgG15, IgG16, IgG17,
IgG18 or IgG19 constant regions.
In one embodiment described, the antibodies or VH or VL polypeptides for the
treatment or prevention of CGRP-associated diarrhea originate or are selected from one or
more rabbit B cell populations prior to initiation of the humanization process referenced
herein.
In another embodiment described, the anti-CGRP antibodies and fragments
thereof for the treatment or prevention of CGRP-associated diarrhea do not have binding
specificity for CGRP-R. In a further embodiment described, the anti-CGRP antibodies and
fragments thereof inhibit the association of CGRP with CGRP-R. In another embodiment
described, the anti-CGRP antibodies and fragments thereof for the treatment or prevention
of CGRP-associated diarrhea inhibit the association of CGRP with CGRP-R and/or
additional proteins and/or multimers thereof, and/or antagonizes the biological effects
thereof.
As stated in paragraph [0127] herein, antibodies and fragments thereof for the
treatment or prevention of CGRP-associated diarrhea may be modified post-translationally
to add effector moieties such as chemical linkers, detectable moieties such as for example
fluorescent dyes, enzymes, substrates, bioluminescent materials, radioactive materials, and
chemiluminescent moieties, or functional moieties such as for example streptavidin, avidin,
biotin, a cytotoxin, a cytotoxic agent, and radioactive materials.
Antibodies or fragments thereof may also be chemically modified to provide
additional advantages such as increased solubility, stability and circulating time (in vivo
half-life) of the polypeptide, or decreased immunogenicity (See U.S. Pat. No. 4,179,337).
The chemical moieties for derivitization may be selected from water soluble polymers such
as polyethylene glycol, ethylene glycol/propylene glycol copolymers,
carboxymethylcellulose, dextran, polyvinyl alcohol and the like. The antibodies and
fragments thereof may be modified at random positions within the molecule, or at
predetermined positions within the molecule and may include one, two, three or more
attached chemical moieties.
The polymer may be of any molecular weight, and may be branched or
unbranched. For polyethylene glycol, the preferred molecular weight is between about 1
kDa and about 100 kDa (the term "about" indicating that in preparations of polyethylene
glycol, some molecules will weigh more, some less, than the stated molecular weight) for
ease in handling and manufacturing. Other sizes may be used, depending on the desired
therapeutic profile (e.g., the duration of sustained release desired, the effects, if any on
biological activity, the ease in handling, the degree or lack of antigenicity and other known
effects of the polyethylene glycol to a therapeutic protein or analog). For example, the
polyethylene glycol may have an average molecular weight of about 200, 500, 1000, 1500,
2000, 2500, 3000, 3500, 4000, 4500, 5000, 5500, 6000, 6500, 7000, 7500, 8000, 8500,
9000, 9500, 10,000, 10,500, 11,000, 11,500, 12,000, 12,500, 13,000, 13,500, 14,000,
14,500, 15,000, 15,500, 16,000, 16,500, 17,000, 17,500, 18,000, 18,500, 19,000, 19,500,
,000, 25,000, 30,000, 35,000, 40,000, 50,000, 55,000, 60,000, 65,000, 70,000, 75,000,
80,000, 85,000, 90,000, 95,000, or 100,000 kDa. Branched polyethylene glycols are
described, for example, in U.S. Pat. No. 5,643,575; Morpurgo et al., Appl. Biochem.
Biotechnol. 56:59-72 (1996); Vorobjev et al., Nucleosides Nucleotides 18:2745-2750
(1999); and Caliceti et al., Bioconjug. Chem. 10:638-646 (1999), the disclosures of each of
which are incorporated herein by reference.
There are a number of attachment methods available to those skilled in the art,
See e.g., EP 0 401 384, herein incorporated by reference (coupling PEG to G-CSF), See
also Malik et al., Exp. Hematol. 20:1028-1035 (1992) (reporting pegylation of GM-CSF
using tresyl chloride). For example, polyethylene glycol may be covalently bound through
amino acid residues via a reactive group, such as, a free amino or carboxyl group. Reactive
groups are those to which an activated polyethylene glycol molecule may be bound. The
amino acid residues having a free amino group may include lysine residues and the N-
terminal amino acid residues; those having a free carboxyl group may include aspartic acid
residues glutamic acid residues and the C-terminal amino acid residue. Sulfhydryl groups
may also be used as a reactive group for attaching the polyethylene glycol molecules.
Preferred for therapeutic purposes is attachment at an amino group, such as attachment at
the N-terminus or lysine group.
As suggested above, polyethylene glycol may be attached to proteins via linkage
to any of a number of amino acid residues. For example, polyethylene glycol can be linked
to polypeptides via covalent bonds to lysine, histidine, aspartic acid, glutamic acid, or
cysteine residues. One or more reaction chemistries may be employed to attach
polyethylene glycol to specific amino acid residues (e.g., lysine, histidine, aspartic acid,
glutamic acid, or cysteine) or to more than one type of amino acid residue (e.g., lysine,
histidine, aspartic acid, glutamic acid, cysteine and combinations thereof).
Alternatively, antibodies or fragments thereof for the treatment or prevention of
CGRP-associated diarrhea may have increased in vivo half lives via fusion with albumin
(including but not limited to recombinant human serum albumin or fragments or variants
thereof (See, e.g., U.S. Pat. No. 5,876,969, issued Mar. 2, 1999, EP Patent 0 413 622, and
U.S. Pat. No. 5,766,883, issued Jun. 16, 1998, herein incorporated by reference in their
entirety)) or other circulating blood proteins such as transferrin or ferritin. In a preferred
embodiment, polypeptides and/or antibodies described (including fragments or variants
thereof) are fused with the mature form of human serum albumin (i.e., amino acids 1-585
of human serum albumin as shown in FIGS. 1 and 2 of EP Patent 0 322 094) which is
herein incorporated by reference in its entirety. Polynucleotides encoding fusion proteins
described are also described.
Regarding detectable moieties, further exemplary enzymes include, but are not
limited to, horseradish peroxidase, acetylcholinesterase, alkaline phosphatase, beta-
galactosidase and luciferase. Further exemplary fluorescent materials include, but are not
limited to, rhodamine, fluorescein, fluorescein isothiocyanate, umbelliferone,
dichlorotriazinylamine, phycoerythrin and dansyl chloride. Further exemplary
chemiluminescent moieties include, but are not limited to, luminol. Further exemplary
bioluminescent materials include, but are not limited to, luciferin and aequorin. Further
exemplary radioactive materials include, but are not limited to, Iodine 125 (125I), Carbon
14 (14C), Sulfur 35 (35S), Tritium (3H) and Phosphorus 32 (32P).
Regarding functional moieties, exemplary cytotoxic agents include, but are not
limited to, methotrexate, aminopterin, 6-mercaptopurine, 6-thioguanine, cytarabine, 5-
fluorouracil decarbazine; alkylating agents such as mechlorethamine, thioepa chlorambucil,
melphalan, carmustine (BSNU), mitomycin C, lomustine (CCNU), 1-methylnitrosourea,
cyclothosphamide, mechlorethamine, busulfan, dibromomannitol, streptozotocin,
mitomycin C, cis-dichlorodiamine platinum (II) (DDP) cisplatin and carboplatin
(paraplatin); anthracyclines include daunorubicin (formerly daunomycin), doxorubicin
(adriamycin), detorubicin, carminomycin, idarubicin, epirubicin, mitoxantrone and
bisantrene; antibiotics include dactinomycin (actinomycin D), bleomycin, calicheamicin,
mithramycin, and anthramycin (AMC); and antimytotic agents such as the vinca alkaloids,
vincristine and vinblastine. Other cytotoxic agents include paclitaxel (taxol), ricin,
pseudomonas exotoxin, gemcitabine, cytochalasin B, gramicidin D, ethidium bromide,
emetine, etoposide, tenoposide, colchicin, dihydroxy anthracin dione, 1-
dehydrotestosterone, glucocorticoids, procaine, tetracaine, lidocaine, propranolol,
puromycin, procarbazine, hydroxyurea, asparaginase, corticosteroids, mytotane (O,P'-
(DDD)), interferons, and mixtures of these cytotoxic agents.
Further cytotoxic agents include, but are not limited to, chemotherapeutic agents
such as carboplatin, cisplatin, paclitaxel, gemcitabine, calicheamicin, doxorubicin, 5-
fluorouracil, mitomycin C, actinomycin D, cyclophosphamide, vincristine and bleomycin.
Toxic enzymes from plants and bacteria such as ricin, diphtheria toxin and Pseudomonas
toxin may be conjugated to the humanized or chimeric antibodies, or binding fragments
thereof, to generate cell-type-specific-killing reagents (Youle, et al., Proc. Nat'l Acad. Sci.
USA 77:5483 (1980); Gilliland, et al., Proc. Nat'l Acad. Sci. USA 77:4539 (1980); Krolick,
et al., Proc. Nat'l Acad. Sci. USA 77:5419 (1980)).
Other cytotoxic agents include cytotoxic ribonucleases as described by
Goldenberg in U.S. Pat. No. 6,653,104. Embodiments described also relate to
radioimmunoconjugates where a radionuclide that emits alpha or beta particles is stably
coupled to the antibody, or binding fragments thereof, with or without the use of a
complex-forming agent. Such radionuclides include beta-emitters such as Phosphorus-32
(32P), Scandium-47 (47Sc), Copper-67 (67Cu), Gallium-67 (67Ga), Yttrium-88 (88Y),
Yttrium-90 (90Y), Iodine-125 (125I), Iodine-131 (131I), Samarium-153 (153Sm),
Lutetium-177 (177Lu), Rhenium-186 (186Re) or Rhenium-188 (188Re), and alpha-
emitters such as Astatine-211 (211At), Lead-212 (212Pb), Bismuth-212 (212Bi) or -213
(213Bi) or Actinium-225 (225Ac).
Methods are known in the art for conjugating an antibody or binding fragment
thereof to a detectable moiety and the like, such as for example those methods described by
Hunter et al, Nature 144:945 (1962); David et al, Biochemistry 13:1014 (1974); Pain et al,
J. Immunol. Meth. 40:219 (1981); and Nygren, J., Histochem. and Cytochem. 30:407
(1982).
Embodiments described herein further include variants and equivalents that are
substantially homologous to the antibodies, antibody fragments, diabodies, SMIPs,
camelbodies, nanobodies, IgNAR, polypeptides, variable regions and CDRs set forth
herein. These may contain, e.g., conservative substitution mutations, (i.e., the substitution
of one or more amino acids by similar amino acids). For example, conservative
substitution refers to the substitution of an amino acid with another within the same general
class, e.g., one acidic amino acid with another acidic amino acid, one basic amino acid with
another basic amino acid, or one neutral amino acid by another neutral amino acid. What is
intended by a conservative amino acid substitution is well known in the art.
In another embodiment, described are polypeptide sequences having at least 90%
or greater sequence homology to any one or more of the polypeptide sequences of antibody
fragments, variable regions and CDRs set forth herein. Described are polypeptide
sequences having at least 95% or greater sequence homology, even more preferably at least
98% or greater sequence homology, and still more preferably at least 99% or greater
sequence homology to any one or more of the polypeptide sequences of antibody
fragments, variable regions and CDRs set forth herein. Methods for determining homology
between nucleic acid and amino acid sequences are well known to those of ordinary skill in
the art.
In another embodiment, described are the above-recited polypeptide homologs
of the antibody fragments, variable regions and CDRs set forth herein further having anti-
CGRP activity. Non-limiting examples of anti-CGRP activity are set forth herein, for
example, in paragraphs [0329]-[0350] infra.
In another embodiment, described is the generation and use of anti-idiotypic
antibodies that bind any of the foregoing sequences. In an exemplary embodiment, such an
anti-idiotypic antibody could be administered to a subject who has received an anti-CGRP
antibody to modulate, reduce, or neutralize, the effect of the anti-CGRP antibody. Such
anti-idiotypic antibodies could also be useful for treatment of an autoimmune disease
characterized by the presence of anti-CGRP antibodies. A further exemplary use of such
anti-idiotypic antibodies is for detection of the anti-CGRP antibodies described, for
example to monitor the levels of the anti-CGRP antibodies present in a subject’s blood or
other bodily fluids.
Also described are anti-CGRP antibodies comprising any of the polypeptide or
polynucleotide sequences described herein substituted for any of the other polynucleotide
sequences described herein. For example, without limitation thereto, the present invention
contemplates antibodies comprising the combination of any of the variable light chain and
variable heavy chain sequences described herein, and further described are antibodies
resulting from substitution of any of the CDR sequences described herein for any of the
other CDR sequences described herein.
Additional Exemplary Embodiments of the Invention
In another embodiment, described are one or more anti-human CGRP antibodies
or antibody fragments thereof for the treatment or prevention of CGRP-associated diarrhea
which specifically bind to the same linear or conformational epitope(s) and/or competes for
binding to the same linear or conformational epitope(s) on an intact human CGRP
polypeptide or fragment thereof as an anti-human CGRP antibody selected from Ab1, Ab2,
Ab3, Ab4, Ab5, Ab6, Ab7, Ab8, Ab9, Ab10, Ab11, Ab12, Ab13, or Ab14. In a preferred
embodiment, the anti-human CGRP antibody or fragment thereof specifically binds to the
same linear or conformational epitope(s) and/or competes for binding to the same linear or
conformational epitope(s) on an intact human CGRP polypeptide or a fragment thereof as
Ab3, Ab6, Ab13, Ab12 or Ab14.
One embodiment described is directed to chimeric or humanized antibodies and
fragments thereof (including Fab fragments) having binding specificity for CGRP and
inhibiting biological activities mediated by the binding of CGRP to the CGRP receptor for
the treatment or prevention of CGRP-associated diarrhea. In a particularly preferred
embodiment of the invention, the chimeric or humanized anti-CGRP antibodies for the
treatment or prevention of CGRP-associated diarrhea are selected from Ab3, Ab6, Ab10,
Ab13, or Ab14.
One embodiment described is directed to methods of screening antibodies and
fragments thereof (including Fab fragments) having binding specificity to human
Calcitonin Gene Related Peptide (hereinafter “CGRP”) in animal models to determine the
in vivo effects thereof, especially their ability to antagonize the adverse side effects of
CGRP including CGRP-associated diarrhea and to treat conditions involving excess CGRP.
One embodiment described involves a method of assessing the potential in vivo
efficacy of a candidate anti-CGRP antibody or antibody fragment comprising determining
whether the antibody inhibits CGRP associated diarrhea compared to a rodent administered
CGRP in the absence of the candidate CGRP antibody or antibody fragment.
One embodiment described involves a method of assessing the potential in vivo
efficacy of a candidate anti-CGRP antibody or antibody fragment to treat a neurological
condition characterized by increased CGRP levels.
One embodiment described involves a method of assessing the potential in vivo
efficacy of a candidate anti-CGRP antibody or antibody fragment to treat a CGRP
associated disorder associated with diarrhea such as migraine or chronic migraine, (with or
without aura), weight loss, cancer or tumors, angiogenesis associated with cancer or tumor
growth, angiogenesis associated with cancer or tumor survival, hemiplagic migraines,
cluster headaches, migrainous neuralgia, chronic headaches, tension headaches, general
headaches, hot flushes, chronic paroxysomal hemicrania, secondary headaches due to an
underlying structural problem in the head or neck, cranial neuralgia, sinus headaches (such
as for example associated with sinusitis), allergy-induced headaches or migraines, pain,
inflammatory pain, post-operative incision pain, complex regional pain syndrome, cancer
pain, primary or metastatic bone cancer pain, fracture pain, chronic pain, osteoporotic
fracture pain, pain resulting from burn, osteoporosis, gout joint pain, abdominal pain, pain
associated with sickle cell crises, and other nociceptic pain, as well as hepatocellular
carcinoma, breast cancer, liver cirrhosis, neurogenic pain, neuropathic pain, nociceptic
pain, trigeminal neuralgia, post-herpetic neuralgia, phantom limb pain, fibromyalgia,
menstrual pain, ovarialgia, reflex sympathetic dystrophy, neurogenic pain, osteoarthritis or
rheumatoid arthritis pain, lower back pain, diabetic neuropathy, sciatica, or pain or visceral
pain associated with: gastro-esophageal reflux, dyspepsia, irritable bowel syndrome,
irritable colon, spastic colon, mucous colitis, inflammatory bowel disease, Crohn’s disease,
ileitis, ulcerative colitis, renal colic, dysmenorrhea, cystitis, menstrual period, labor,
menopause, prostatitis, pancreatitis, renal colic, dysmenorrhea, cystitis, including
interstitial cystitis (IC), surgery associated with the ileus, diverticulitis, peritonitis,
pericarditis, hepatitis, appendicitis, colitis, cholecystitis, endometriosis, chronic and/or
acute pancreatitis, myocardial infarction, kidney pain, pleural pain, prostatitis, pelvic pain,
trauma to an organ, chronic nociceptive pain, chronic neuropathic pain, chronic
inflammatory pain, fibromyalgia, breakthrough pain and persistent pain.
One embodiment described involves a method of using an anti-CGRP antibody
or antibody fragment to treat a CGRP associated disorder associated with diarrhea wherein
the condition is cancer pain arising from malignancy or from cancer preferably selected
from one or more of: adenocarcinoma in glandular tissue, blastoma in embryonic tissue of
organs, carcinoma in epithelial tissue, leukemia in tissues that form blood cells, lymphoma
in lymphatic tissue, myeloma in bone marrow, sarcoma in connective or supportive tissue,
adrenal cancer, AIDS-related lymphoma, anemia, bladder cancer, bone cancer, brain
cancer, breast cancer, carcinoid tumours, cervical cancer, chemotherapy, colon cancer,
cytopenia, endometrial cancer, esophageal cancer, gastric cancer, head cancer, neck
cancer, hepatobiliary cancer, kidney cancer, leukemia, liver cancer, lung cancer,
lymphoma, Hodgkin's disease, lymphoma, non- Hodgkin's, nervous system tumours, oral
cancer, ovarian cancer, pancreatic cancer, prostate cancer, rectal cancer, skin cancer,
stomach cancer, testicular cancer, thyroid cancer, urethral cancer, bone cancer, sarcomas
cancer of the connective tissue, cancer of bone tissue, cancer of blood-forming cells, cancer
of bone marrow, multiple myeloma, leukaemia, primary or secondary bone cancer, tumours
that metastasize to the bone, tumours infiltrating the nerve and hollow viscus, tumours near
neural structures. Further preferably the cancer pain comprises visceral pain, preferably
visceral pain which arises from pancreatic cancer and/or metastases in the abdomen.
Further preferably the cancer pain comprises somatic pain, preferably somatic pain due to
one or more of bone cancer, metastasis in the bone, postsurgical pain, sarcomas cancer of
the connective tissue, cancer of bone tissue, cancer of blood-forming cells of the bone
marrow, multiple myeloma, leukaemia, primary or secondary bone cancer.
A further embodiment described relates to methods of inhibiting, preventing or
treating diarrhea and/or maintaining electrolyte balance and fluid levels in the intestines of
a subject having a condition associated with elevated CGRP levels that result in diarrhea
and/or increased flux of electrolytes and fluids from the intestines comprising
administering an effective amount of an anti-CGRP antibody or anti-CGRP antibody
fragment.
Related thereto another embodiment described specifically relates to methods of
treating or preventing diarrhea in individuals with functional bowel disorders or an
inflammatory bowel diseases, bacterial or viral induced diarrhea, cancer associated with
diarrhea, such as medullary thyroid carcinoma or a colorectal cancer, and more specifically
functional bowel disorders or inflammatory bowel diseases, including by way of example
gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, functional abdominal pain
syndrome, diverticulosis, and diverticulitis or inflammatory bowel disease is selected from
the group consisting of Crohn's disease, ileitis, collagenous colitis, lymphocytic colitis, and
ulcerative colitis wherein these therapies administer an effective amount of an anti-CGRP
antibody or antibody fragment administered as a monotherapy or in combination with
another active agent.
Other embodiments described are directed to screening assays and therapeutic
usage of specific antibodies and fragments thereof having binding specificity for CGRP, in
particular antibodies having desired epitopic specificity, high affinity or avidity and/or
functional properties. In preferred embodiments described relates to assays and usage of
the antibodies described herein, comprising the sequences of the VH, VL and CDR
polypeptides described herein, and the polynucleotides encoding them. A preferred
embodiment described is directed to chimeric or humanized antibodies and fragments
thereof (including Fab fragments) capable of binding to CGRP and/or inhibiting the
biological activities mediated by the binding of CGRP to the CGRP receptor (“CGRP-R”).
In a further embodiment described is a method of reducing, treating or
preventing diseases or disorders associated with CGRP which may include diarrhea as an
adverse side effect by affecting those biological activities mediated via CGRP, thereby
avoiding the biological activities mediated via binding of CGRP to CGRP-R. A further
non-limiting listing of diseases and disorders associated with CGRP is provided herein.
In another embodiment described, the anti-human CGRP antibody for the
treatment or prevention of CGRP-associated diarrhea is an antibody which specifically
binds to the same linear or conformational epitopes on an intact CGRP polypeptide or
fragment thereof that is (are) specifically bound by Ab3, Ab6, Ab13, or Ab14 as
ascertained by epitopic mapping using overlapping linear peptide fragments which span the
full length of the native human CGRP polypeptide.
Also described is an anti-CGRP antibody for the treatment or prevention of
CGRP-associated diarrhea that binds with the same CGRP epitope and/or competes with an
anti-CGRP antibody for binding to CGRP as an antibody or antibody fragment disclosed
herein, including but not limited to an anti-CGRP antibody selected from Ab1, Ab2, Ab3,
Ab4, Ab5, Ab6, Ab7, Ab8, Ab9, Ab10, Ab11, Ab12, Ab13, or Ab14.
In another embodiment, described is an isolated anti-CGRP antibody or antibody
fragment for the treatment or prevention of CGRP-associated diarrhea comprising one or
more of the CDRs contained in the VH polypeptide sequences selected from: 3, 13, 23, 33,
43, 53, 63, 73, 83, 93, 103, 113, 123, or 133, or a variant thereof, and/or one or more of the
CDRs contained in the VL polypeptide sequences selected from: 1, 11, 21, 31, 41, 51, 61,
71, 81, 91, 101, 111, 121, or 131, or a variant thereof.
In one embodiment described is, the anti-human CGRP antibody discussed in the
two prior paragraphs comprises at least 2 complementarity determining regions (CDRs) in
each the variable light and the variable heavy regions which are identical to those contained
in an anti-human CGRP antibody selected from Ab1, Ab2, Ab3, Ab4, Ab5, Ab6, Ab7,
Ab8, Ab9, Ab10, Ab11, Ab12, Ab13, or Ab14.
In one embodiment, the anti-human CGRP antibody discussed above comprises
at least 2 complementarity determining regions (CDRs) in each the variable light and the
variable heavy regions which are identical to those contained in Ab3 or Ab6. In another
embodiment, all of the CDRs of the anti-human CGRP antibody discussed above are
identical to the CDRs contained in an anti-human CGRP antibody selected from Ab1, Ab2,
Ab3, Ab4, Ab5, Ab6, Ab7, Ab8, Ab9, Ab10, Ab11, Ab12, Ab13, or Ab14. In a preferred
embodiment of the invention, all of the CDRs of the anti-human CGRP antibody discussed
above are identical to the CDRs contained in an anti-human CGRP antibody selected from
Ab3 or Ab6.
Further described is that the one or more anti-human CGRP antibodies discussed
above for the treatment or prevention of CGRP-associated diarrhea which are
aglycosylated; or minimally glycosylated, e.g., which lack N-glycosylation but may
comprise some O-glycosylation, such as mannose residues, and/or that contain an Fc region
that has been modified to alter effector function, half-life, proteolysis, and/or glycosylation;
are human, humanized, single chain or chimeric; and are a humanized antibody derived
from a rabbit (parent) anti-human CGRP antibody.
Further described is one or more anti-human CGRP antibodies for the treatment
or prevention of CGRP-associated diarrhea wherein the framework regions (FRs) in the
variable light region and the variable heavy regions of said antibody respectively are
human FRs which are unmodified or which have been modified by the substitution of one
or more human FR residues in the variable light or heavy chain region with the
corresponding FR residues of the parent rabbit antibody, and wherein said human FRs have
been derived from human variable heavy and light chain antibody sequences which have
been selected from a library of human germline antibody sequences based on their high
level of homology to the corresponding rabbit variable heavy or light chain regions relative
to other human germline antibody sequences contained in the library.
In one embodiment described, the anti-human CGRP antibody or fragment for
the treatment or prevention of CGRP-associated diarrhea specifically binds to CGRP
expressing human cells and/or to circulating soluble CGRP molecules in vivo, including
CGRP expressed on or by human cells in a patient with a disease associated with cells that
express CGRP.
In another embodiment, the CGRP related disease that may be associated with
diarrhea is selected from migraines (with or without aura), weight loss, cancer or tumors,
angiogenesis associated with cancer or tumor growth, angiogenesis associated with cancer
or tumor survival, hemiplagic migraines, cluster headaches, migrainous neuralgia, chronic
headaches, tension headaches, general headaches, hot flushes, chronic paroxysomal
hemicrania, secondary headaches due to an underlying structural problem in the head or
neck, cranial neuralgia, sinus headaches (such as for example associated with sinusitis),
allergy-induced headaches or migraines, pain, inflammatory pain, post-operative incision
pain, complex regional pain syndrome, cancer pain, primary or metastatic bone cancer
pain, fracture pain, chronic pain, osteoporotic fracture pain, pain resulting from burn,
osteoporosis, gout joint pain, abdominal pain, pain associated with sickle cell crises, and
other nociceptic pain, as well as hepatocellular carcinoma, breast cancer, liver cirrhosis,
neurogenic pain, neuropathic pain, nociceptic pain, trigeminal neuralgia, post-herpetic
neuralgia, phantom limb pain, fibromyalgia, menstrual pain, ovarialgia, reflex sympathetic
dystrophy, neurogenic pain, osteoarthritis or rheumatoid arthritis pain, lower back pain,
diabetic neuropathy, sciatica, or pain or visceral pain associated with: gastro-esophageal
reflux, dyspepsia, irritable bowel syndrome, irritable colon, spastic colon, mucous colitis,
inflammatory bowel disease, Crohn’s disease, ileitis, ulcerative colitis, renal colic,
dysmenorrhea, cystitis, menstrual period, labor, menopause, prostatitis, pancreatitis, renal
colic, dysmenorrhea, cystitis, including interstitial cystitis (IC), surgery associated with the
ileus, diverticulitis, peritonitis, pericarditis, hepatitis, appendicitis, colitis, cholecystitis,
endometriosis, chronic and/or acute pancreatitis, myocardial infarction, kidney pain,
pleural pain, prostatitis, pelvic pain, trauma to an organ, chronic nociceptive pain, chronic
neuropathic pain, chronic inflammatory pain, fibromyalgia, breakthrough pain and
persistent pain.
In another embodiment described, the disease treated that may be associated
with diarrhea is cancer pain arising from malignancy or from cancer preferably selected
from one or more of: adenocarcinoma in glandular tissue, blastoma in embryonic tissue of
organs, carcinoma in epithelial tissue, leukemia in tissues that form blood cells, lymphoma
in lymphatic tissue, myeloma in bone marrow, sarcoma in connective or supportive tissue,
adrenal cancer, AIDS-related lymphoma, anemia, bladder cancer, bone cancer, brain
cancer, breast cancer, carcinoid tumours, cervical cancer, chemotherapy, colon cancer,
cytopenia, , endometrial cancer, esophageal cancer, gastric cancer, head cancer, neck
cancer, hepatobiliary cancer, kidney cancer, leukemia, liver cancer, lung cancer,
lymphoma, Hodgkin's disease, lymphoma, non- Hodgkin's, nervous system tumours, oral
cancer, ovarian cancer, pancreatic cancer, prostate cancer, rectal cancer, skin cancer,
stomach cancer, testicular cancer, thyroid cancer, urethral cancer, bone cancer, sarcomas
cancer of the connective tissue, cancer of bone tissue, cancer of blood-forming cells, cancer
of bone marrow, multiple myeloma, leukaemia, primary or secondary bone cancer, tumours
that metastasize to the bone, tumours infiltrating the nerve and hollow viscus, tumours near
neural structures. Further preferably the cancer pain comprises visceral pain, preferably
visceral pain which arises from pancreatic cancer and/or metastases in the abdomen.
Further preferably the cancer pain comprises somatic pain, preferably somatic pain due to
one or more of bone cancer, metastasis in the bone, postsurgical pain, sarcomas cancer of
the connective tissue, cancer of bone tissue, cancer of blood-forming cells of the bone
marrow, multiple myeloma, leukaemia, primary or secondary bone cancer.
Further described are anti-human CGRPantibodies or fragments diarrhea
directly or indirectly attached to a detectable label or therapeutic agent.
Also described are one or more nucleic acid sequences which result in the
expression of an anti-human CGRP antibody or antibody fragment as set forth above,
including those comprising, or alternatively consisting of, yeast or human preferred codons.
Also described are vectors (including plasmids or recombinant viral vectors) comprising
said nucleic acid sequence(s). Also described are host cells or recombinant host cells
expressing at least one of the antibodies set forth above, including a mammalian, yeast,
bacterial, and insect cells. In a preferred embodiment, the host cell is a yeast cell. In a
further preferred embodiment, the yeast cell is a diploidal yeast cell. In a more preferred
embodiment, the yeast cell is a Pichia yeast.
Also described is a method of treatment comprising administering to a patient
with a disease or condition associated with CGRP expressing cells that results in diarrhea a
therapeutically effective amount of at least one anti-human CGRP antibody or fragment
described herein. The treatment method may involve the administration of two or more
anti-CGRP antibodies or fragments thereof and disclosed herein. If more than one
antibody is administered to the patient, the multiple antibodies may be administered
simultaneously or concurrently, or may be staggered in their administration. The diseases
that may be treated are presented in the non-limiting list set forth above and elsewhere
herein. In a preferred embodiment, the disease is selected from migraine, headache, weight
loss, pain, cancer pain or neuropathic pain. In another embodiment the treatment further
includes the administration of another therapeutic agent or regimen selected from
chemotherapy, radiotherapy, cytokine administration or gene therapy.
In a non-limiting embodiment described, another therapeutic agent or regimen
includes opioids, analgesics such as NSAIDs, Taxol (paclitaxel) or its derivatives, platinum
compounds such as carboplatin or cisplatin, anthrocyclines such as doxorubicin, alkylating
agents such as cyclophosphamide, anti-metabolites such as 5-fluorouracil, or etoposide.
Further described is a method of in vivo imaging which detects the presence of
cells which express CGRP comprising administering a diagnostically effective amount of
at least one anti-human CGRP antibody. In one embodiment, said administration further
includes the administration of a radionuclide or fluorophore that facilitates detection of the
antibody at CGRP expressing disease sites. In a further embodiment, the results of said in
vivo imaging method are used to facilitate the design of an appropriate therapeutic
regimen, including therapeutic regimens including radiotherapy, chemotherapy or a
combination thereof.
The anti-CGRP activity of the anti-CGRP antibodies described, and fragments
thereof having binding specificity to CGRP diarrhea, may also be described by their
strength of binding or their affinity for CGRP. In one embodiment described, the anti-
CGRP antibodies of the present invention, and fragments thereof having binding specificity
to CGRP, bind to CGRP with a dissociation constant (KD) of less than or equal to 5x10-7
M, 10-7 M, 5x10-8 M, 10-8 M, 5x10-9 M, 10-9 M, 5x10-10 M, 10-10 M, 5x10-11 M, 10-
11 M, 5x10-12 M, 10-12 M, 5x10-13 M, or 10-13 M. Preferably, the anti-CGRP
antibodies and fragments thereof bind CGRP with a dissociation constant of less than or
equal to 10-11 M, 5x10-12 M, or 10-12 M. In another embodiment described, the anti-
CGRP antibodies described, and fragments thereof having binding specificity to CGRP,
bind to a linear or conformational CGRP epitope.
In another embodiment described, the anti-CGRP activity of the anti-CGRP
antibodies described, and fragments thereof having binding specificity to CGRP, bind to
CGRP with an off-rate of less than or equal to 10-4 S-1, 5x10-5 S-1, 10-5 S-1, 5x10-6 S-1,
-6 S-1, 5x10-7 S-1, or 10-7 S-1.
In a further embodiment described, the anti-CGRP activity of the anti-CGRP
antibodies described, and fragments thereof having binding specificity to CGRP, exhibit
anti-CGRP activity by preventing, ameliorating or reducing the symptoms of, or
alternatively treating, diseases and disorders associated with CGRP especially diarrhea.
Non-limiting examples of diseases and disorders associated with CGRP are set forth
herein.
Polynucleotides Encoding Anti-CGRP Antibody Polypeptides
Antibody Ab1
Also described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 1:
CAAGTGCTGACCCAGACTGCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATGATAACAACTACC
TAGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCT
ACATCCACTCTGGCATCTGGGGTCTCATCGCGGTTCAAAGGCAGTGGATCTGG
GACACAGTTCACTCTCACCATCAGCGACCTGGAGTGTGCCGATGCTGCCACTTA
CTACTGTCTAGGCAGTTATGATTGTAGTAGTGGTGATTGTTTTGTTTTCGGCGG
AGGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 141).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 2:
CAAGTGCTGACCCAGACTGCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATGATAACAACTACC
TAGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCT
ACATCCACTCTGGCATCTGGGGTCTCATCGCGGTTCAAAGGCAGTGGATCTGG
GACACAGTTCACTCTCACCATCAGCGACCTGGAGTGTGCCGATGCTGCCACTTA
CTACTGTCTAGGCAGTTATGATTGTAGTAGTGGTGATTGTTTTGTTTTCGGCGG
AGGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATCT
TCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGC
TGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCC
CTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACA
GCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAA
ACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCA
CAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 142).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 3:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGCACAGTCTCTGGACTCGACCTCAGTAGCTACTACATGCA
ATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTA
TTAATGATAACACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AGAGCCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCAGGCACCCTCG
TCACCGTCTCGAGC (SEQ ID NO: 143).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 4:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGCACAGTCTCTGGACTCGACCTCAGTAGCTACTACATGCA
ATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTA
TTAATGATAACACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AGAGCCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCAGGCACCCTCG
TCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTGGCAcCCT
CCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTCAAGGAC
TACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGACCAGCGG
CGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCTCAGCAG
CGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCTGCAACG
TGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCCCAAATC
TTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCCTGGGGG
GACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATCTCCC
GGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGACCCTGAG
GTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCAAGACAAA
GCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGTCCTCACCG
TCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGGTCTCCAAC
AAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGCAGCC
CCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGATGACCAAGA
ACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCGACATCGCC
GTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGACCACGCCTC
CCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCACCGTGGACA
AGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGAGGCT
CTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAATGA
(SEQ ID NO: 144).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 145; SEQ ID NO: 146; and SEQ ID
NO: 147 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 1 or the light chain sequence of SEQ ID NO: 2.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 148; SEQ ID NO: 149; and SEQ ID
NO: 150 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 3 or the heavy chain sequence of SEQ ID NO: 4.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 141 encoding the light chain variable sequence of SEQ ID
NO: 1; the polynucleotide SEQ ID NO: 142 encoding the light chain sequence of SEQ ID
NO: 2; the polynucleotide SEQ ID NO: 143 encoding the heavy chain variable sequence of
SEQ ID NO: 3; the polynucleotide SEQ ID NO: 144 encoding the heavy chain sequence of
SEQ ID NO: 4; polynucleotides encoding the complementarity-determining regions (SEQ
ID NO: 145; SEQ ID NO: 146; and SEQ ID NO: 147) of the light chain variable sequence
of SEQ ID NO: 1 or the light chain sequence of SEQ ID NO: 2; and polynucleotides
encoding the complementarity-determining regions (SEQ ID NO: 148; SEQ ID NO: 149;
and SEQ ID NO: 150) of the heavy chain variable sequence of SEQ ID NO: 3 or the heavy
chain sequence of SEQ ID NO: 4.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab1, the
polynucleotides encoding the full length Ab1 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 142 encoding the light chain sequence of SEQ ID NO: 2
and the polynucleotide SEQ ID NO: 144 encoding the heavy chain sequence of SEQ ID
NO: 4.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab1 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab1 or Fab fragments
thereof may be produced via expression of Ab1 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab2
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 11:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATGATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagt
tcctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTAGGCAGTTATGATT
GTAGTAGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
151).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 12:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATGATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagt
tcctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTAGGCAGTTATGATT
GTAGTAGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTG
CACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTG
CCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGT
GGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAG
CAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCA
AAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGG
CCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID
NO: 152).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 13:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaCTCGACCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATCAATGATAACACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
153).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 14:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaCTCGACCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATCAATGATAACACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACAAGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 154).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 155; SEQ ID NO: 156; and SEQ ID
NO: 157 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 11 or the light chain sequence of SEQ ID NO: 12.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 158; SEQ ID NO: 159; and SEQ ID
NO: 160 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 13 or the heavy chain sequence of SEQ ID NO: 14.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 151 encoding the light chain variable sequence of SEQ ID
NO: 11; the polynucleotide SEQ ID NO: 152 encoding the light chain sequence of SEQ ID
NO: 12; the polynucleotide SEQ ID NO: 153 encoding the heavy chain variable sequence
of SEQ ID NO: 13; the polynucleotide SEQ ID NO: 154 encoding the heavy chain
sequence of SEQ ID NO: 14; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 155; SEQ ID NO: 156; and SEQ ID NO: 157) of the light chain
variable sequence of SEQ ID NO: 11 or the light chain sequence of SEQ ID NO: 12; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 158;
SEQ ID NO: 159; and SEQ ID NO: 160) of the heavy chain variable sequence of SEQ ID
NO: 13 or the heavy chain sequence of SEQ ID NO: 14.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab2, the
polynucleotides encoding the full length Ab2 antibody comprise, or alternatively consist
of,the polynucleotide SEQ ID NO: 152 encoding the light chain sequence of SEQ ID NO:
12 and the polynucleotide SEQ ID NO: 154 encoding the heavy chain sequence of SEQ ID
NO: 14.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described described herein (infra), Fab fragments may be produced by enzymatic digestion
(e.g., papain) of Ab2 following expression of the full-length polynucleotides in a suitable
host. In another embodiment described, anti-CGRP antibodies such as Ab2 or Fab
fragments thereof may be produced via expression of Ab2 polynucleotides in mammalian
cells such as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as
yeast cells (for example diploid yeast such as diploid Pichia) and other yeast strains.
Suitable Pichia species include, but are not limited to, Pichia pastoris.
Antibody Ab3
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 21:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATGATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagt
tcctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTAGGCAGTTATGATT
GTAGTAGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
161).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 22:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATGATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagt
tcctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTAGGCAGTTATGATT
GTAGTAGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTG
CACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTG
CCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGT
GGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAG
CAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCA
AAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGG
CCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID
NO: 162).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 23:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaCTCGACCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATCAATGATAACACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
163).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 24:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaCTCGACCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATCAATGATAACACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACGCGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 164).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 165; SEQ ID NO: 166; and SEQ ID
NO: 167 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 21 or the light chain sequence of SEQ ID NO: 22.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 168; SEQ ID NO: 169; and SEQ ID
NO: 170 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 23 or the heavy chain sequence of SEQ ID NO: 24.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 161 encoding the light chain variable sequence of SEQ ID
NO: 21; the polynucleotide SEQ ID NO: 162 encoding the light chain sequence of SEQ ID
NO: 22; the polynucleotide SEQ ID NO: 163 encoding the heavy chain variable sequence
of SEQ ID NO: 23; the polynucleotide SEQ ID NO: 164 encoding the heavy chain
sequence of SEQ ID NO: 24; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 165; SEQ ID NO: 166; and SEQ ID NO: 167) of the light chain
variable sequence of SEQ ID NO: 21 or the light chain sequence of SEQ ID NO: 22; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 168;
SEQ ID NO: 169; and SEQ ID NO: 170) of the heavy chain variable sequence of SEQ ID
NO: 23 or the heavy chain sequence of SEQ ID NO: 24.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab3, the
polynucleotides encoding the full length Ab3 antibody comprise, or alternatively consist
of,the polynucleotide SEQ ID NO: 162 encoding the light chain sequence of SEQ ID NO:
22 and the polynucleotide SEQ ID NO: 164 encoding the heavy chain sequence of SEQ ID
NO: 24.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab3 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab3 or Fab fragments
thereof may be produced via expression of Ab3 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab4
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 31:
CAAGTGCTGACCCAGACTCCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATCATAACACCTACCT
GGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAACAACTGATCTATGATG
CATCCACTCTGGCGTCTGGGGTCCCATCGCGGTTCAGCGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGGCGTGCAGTGTAACGATGCTGCCGCTTAC
TACTGTCTGGGCAGTTATGATTGTACTAATGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 171).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 32:
CAAGTGCTGACCCAGACTCCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATCATAACACCTACCT
GGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAACAACTGATCTATGATG
CATCCACTCTGGCGTCTGGGGTCCCATCGCGGTTCAGCGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGGCGTGCAGTGTAACGATGCTGCCGCTTAC
TACTGTCTGGGCAGTTATGATTGTACTAATGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATCTTC
CCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTG
AATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCT
CCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGC
ACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAAC
ACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACA
AAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 172).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 33:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGTTCCGTCTCTGGCATCGACCTCAGTGGCTACTACATGAA
CTGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTA
TTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AAAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCGGGCACCCTCG
TCACCGTCTCGAGC (SEQ ID NO: 173).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 34:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGTTCCGTCTCTGGCATCGACCTCAGTGGCTACTACATGAA
CTGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTA
TTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AAAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCGGGCACCCTCG
TCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTGGCAcCCT
CCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTCAAGGAC
TACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGACCAGCGG
CGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCTCAGCAG
CGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCTGCAACG
TGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCCCAAATC
TTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCCTGGGGG
GACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATCTCCC
GGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGACCCTGAG
GTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCAAGACAAA
GCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGTCCTCACCG
TCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGGTCTCCAAC
AAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGCAGCC
CCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGATGACCAAGA
ACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCGACATCGCC
GTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGACCACGCCTC
CCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCACCGTGGACA
AGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGAGGCT
CTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAATGA
(SEQ ID NO: 174).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 175; SEQ ID NO: 176; and SEQ ID
NO: 177 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 31 or the light chain sequence of SEQ ID NO: 32.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 178; SEQ ID NO: 179; and SEQ ID
NO: 180 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 33 or the heavy chain sequence of SEQ ID NO: 34.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 171 encoding the light chain variable sequence of SEQ ID
NO: 31; the polynucleotide SEQ ID NO: 172 encoding the light chain sequence of SEQ ID
NO: 32; the polynucleotide SEQ ID NO: 173 encoding the heavy chain variable sequence
of SEQ ID NO: 33; the polynucleotide SEQ ID NO: 174 encoding the heavy chain
sequence of SEQ ID NO: 34; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 175; SEQ ID NO: 176; and SEQ ID NO: 177) of the light chain
variable sequence of SEQ ID NO: 31 or the light chain sequence of SEQ ID NO: 32; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 178;
SEQ ID NO: 179; and SEQ ID NO: 180) of the heavy chain variable sequence of SEQ ID
NO: 33 or the heavy chain sequence of SEQ ID NO: 34.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab4, the
polynucleotides encoding the full length Ab4 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 172 encoding the light chain sequence of SEQ ID NO: 32
and the polynucleotide SEQ ID NO: 174 encoding the heavy chain sequence of SEQ ID
NO: 34.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab4 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab4 or Fab fragments
thereof may be produced via expression of Ab4 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab5
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 41:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATCATAACACCTACCTGGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatGATGCATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATT
GTACTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
181).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 42:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATCATAACACCTACCTGGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatGATGCATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATT
GTACTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTG
CACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTG
CCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGT
GGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAG
CAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCA
AAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGG
CCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID
NO: 182).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 43:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtGGCTACTACATGAACtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
183).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 44:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtGGCTACTACATGAACtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACAAGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 184).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 185; SEQ ID NO: 186; and SEQ ID
NO: 187 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 41 or the light chain sequence of SEQ ID NO: 42.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 188; SEQ ID NO: 189; and SEQ ID
NO: 190 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 43 or the heavy chain sequence of SEQ ID NO: 44.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 181 encoding the light chain variable sequence of SEQ ID
NO: 41; the polynucleotide SEQ ID NO: 182 encoding the light chain sequence of SEQ ID
NO: 42; the polynucleotide SEQ ID NO: 183 encoding the heavy chain variable sequence
of SEQ ID NO: 43; the polynucleotide SEQ ID NO: 184 encoding the heavy chain
sequence of SEQ ID NO: 44; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 185; SEQ ID NO: 186; and SEQ ID NO: 187) of the light chain
variable sequence of SEQ ID NO: 41 or the light chain sequence of SEQ ID NO: 42; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 188;
SEQ ID NO: 189; and SEQ ID NO: 190) of the heavy chain variable sequence of SEQ ID
NO: 43 or the heavy chain sequence of SEQ ID NO: 44.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab5, the
polynucleotides encoding the full length Ab5 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 182 encoding the light chain sequence of SEQ ID NO: 42
and the polynucleotide SEQ ID NO: 184 encoding the heavy chain sequence of SEQ ID
NO: 44.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab5 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab5 or Fab fragments
thereof may be produced via expression of Ab5 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab6
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 51:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATCATAACACCTACCTGGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatGATGCATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATT
GTACTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
191).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 52:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTATCATAACACCTACCTGGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatGATGCATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctg
ggacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATT
GTACTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTG
CACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTG
CCTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGT
GGAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAG
CAGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCA
AAGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGG
CCTGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID
NO: 192).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 53:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtGGCTACTACATGAACtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
193).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 54:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtGGCTACTACATGAACtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTATTAATGGTGCCACATACTACGCGAGCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACGCGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 194).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 195; SEQ ID NO: 196; and SEQ ID
NO: 197 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 51 or the light chain sequence of SEQ ID NO: 52.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 198; SEQ ID NO: 199; and SEQ ID
NO: 200 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 53 or the heavy chain sequence of SEQ ID NO: 54.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 191 encoding the light chain variable sequence of SEQ ID
NO: 51; the polynucleotide SEQ ID NO: 192 encoding the light chain sequence of SEQ ID
NO: 52; the polynucleotide SEQ ID NO: 193 encoding the heavy chain variable sequence
of SEQ ID NO: 53; the polynucleotide SEQ ID NO: 194 encoding the heavy chain
sequence of SEQ ID NO: 54; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 195; SEQ ID NO: 196; and SEQ ID NO: 197) of the light chain
variable sequence of SEQ ID NO: 51 or the light chain sequence of SEQ ID NO: 52; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 198;
SEQ ID NO: 199; and SEQ ID NO: 200) of the heavy chain variable sequence of SEQ ID
NO: 53 or the heavy chain sequence of SEQ ID NO: 54.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab6, the
polynucleotides encoding the full length Ab6 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 192 encoding the light chain sequence of SEQ ID NO: 52
and the polynucleotide SEQ ID NO: 194 encoding the heavy chain sequence of SEQ ID
NO: 54.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab6 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab6 or Fab fragments
thereof may be produced via expression of Ab6 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab7
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 61:
CAAGTGCTGACCCAGACTGCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATAATTACAACTACCT
TGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCTA
CATCCACTCTGGCATCTGGGGTCTCATCGCGATTCAAAGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTTAC
TACTGTCTAGGCAGTTATGACTGTAGTACTGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 201).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 62:
CAAGTGCTGACCCAGACTGCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAGTGTTTATAATTACAACTACCT
TGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCTA
CATCCACTCTGGCATCTGGGGTCTCATCGCGATTCAAAGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTTAC
TACTGTCTAGGCAGTTATGACTGTAGTACTGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATCTTC
CCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTG
AATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCT
CCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGC
ACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAAC
ACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACA
AAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 202).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 63:
CAGGAGCAGCTGAAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGA
CATCCCTGACACTCACCTGCACCGTCTCTGGAATCGACCTCAGTAACCACTACA
TGCAATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGATCGGAGTCGTT
GGTATTAATGGTCGCACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCAT
CTCCAGAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGGCTGACAACCG
AGGACACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCAGGCACC
CTGGTCACCGTCTCGAGC (SEQ ID NO: 203).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 64:
CAGGAGCAGCTGAAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGA
CATCCCTGACACTCACCTGCACCGTCTCTGGAATCGACCTCAGTAACCACTACA
TGCAATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGATCGGAGTCGTT
GGTATTAATGGTCGCACATACTACGCGAGCTGGGCGAAAGGCCGATTCACCAT
CTCCAGAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGGCTGACAACCG
AGGACACGGCCACCTATTTCTGTGCCAGAGGGGACATCTGGGGCCCAGGCACC
CTGGTCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTGGCA
cCCTCCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTCAA
GGACTACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGACCA
GCGGCGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCTCA
GCAGCGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCTGC
AACGTGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCCCA
AATCTTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCCTG
GGGGGACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATC
TCCCGGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGACCC
TGAGGTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCAAGA
CAAAGCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGTCCTC
ACCGTCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGGTCTC
CAACAAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGC
AGCCCCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGATGACC
AAGAACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCGACAT
CGCCGTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGACCACG
CCTCCCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCACCGTG
GACAAGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGA
GGCTCTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAAT
GA (SEQ ID NO: 204).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 205; SEQ ID NO: 206; and SEQ ID
NO: 207 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 61 or the light chain sequence of SEQ ID NO: 62.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 208; SEQ ID NO: 209; and SEQ ID
NO: 210 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 63 or the heavy chain sequence of SEQ ID NO: 64.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 201 encoding the light chain variable sequence of SEQ ID
NO: 61; the polynucleotide SEQ ID NO: 202 encoding the light chain sequence of SEQ ID
NO: 62; the polynucleotide SEQ ID NO: 203 encoding the heavy chain variable sequence
of SEQ ID NO: 63; the polynucleotide SEQ ID NO: 204 encoding the heavy chain
sequence of SEQ ID NO: 64; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 205; SEQ ID NO: 206; and SEQ ID NO: 207) of the light chain
variable sequence of SEQ ID NO: 61 or the light chain sequence of SEQ ID NO: 62; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 208;
SEQ ID NO: 209; and SEQ ID NO: 210) of the heavy chain variable sequence of SEQ ID
NO: 63 or the heavy chain sequence of SEQ ID NO: 64.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab7, the
polynucleotides encoding the full length Ab7 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 202 encoding the light chain sequence of SEQ ID NO: 62
and the polynucleotide SEQ ID NO: 204 encoding the heavy chain sequence of SEQ ID
NO: 64.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab7 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab7 or Fab fragments
thereof may be produced via expression of Ab7 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab8
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 71:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTAcAATTACAACTACCTTGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTACTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
211).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 72:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAGTGTTTAcAATTACAACTACCTTGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTACTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTGC
ACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGC
CTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTG
GAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGC
AGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAA
AGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCC
TGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO:
212).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 73:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtAACCACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCGTTGGTATcAATGGTCGCACATACTACGCGAGCTGGGCGAAAGGCcga
ttcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtatT
TCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
213).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 74:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACCTCagtAACCACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCGTTGGTATcAATGGTCGCACATACTACGCGAGCTGGGCGAAAGGCcga
ttcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtatT
TCtgtGCTAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCAA
GGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCAC
AGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTGT
CGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCTA
CAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCAGC
TTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACCAA
GGTGGACAAGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCCAC
CGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCCAA
AACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGTGG
TGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACGGC
GTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAGCA
CGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATGGC
AAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAGAA
AACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCTGC
CCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGGTC
AAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAGCC
GGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTTCT
TCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACGTC
TTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAGAG
CCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 214).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 215; SEQ ID NO: 216; and SEQ ID
NO: 217 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 71 or the light chain sequence of SEQ ID NO: 72.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 218; SEQ ID NO: 219; and SEQ ID
NO: 220 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 73 or the heavy chain sequence of SEQ ID NO: 74.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 211 encoding the light chain variable sequence of SEQ ID
NO: 71; the polynucleotide SEQ ID NO: 212 encoding the light chain sequence of SEQ ID
NO: 72; the polynucleotide SEQ ID NO: 213 encoding the heavy chain variable sequence
of SEQ ID NO: 73; the polynucleotide SEQ ID NO: 214 encoding the heavy chain
sequence of SEQ ID NO: 74; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 215; SEQ ID NO: 216; and SEQ ID NO: 217) of the light chain
variable sequence of SEQ ID NO: 71 or the light chain sequence of SEQ ID NO: 72; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 218;
SEQ ID NO: 219; and SEQ ID NO: 220) of the heavy chain variable sequence of SEQ ID
NO: 73 or the heavy chain sequence of SEQ ID NO: 74.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab8, the
polynucleotides encoding the full length Ab8 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 212 encoding the light chain sequence of SEQ ID NO: 72
and the polynucleotide SEQ ID NO: 214 encoding the heavy chain sequence of SEQ ID
NO: 74.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab8 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab8 or Fab fragments
thereof may be produced via expression of Ab8 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab9
Further directed to polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 81:
CAAGTGCTGACCCAGACTCCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAATGTTTATAATAACAACTACC
TAGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCT
ACGTCCACTCTGGCATCTGGGGTCTCATCGCGATTCAGAGGCAGTGGATCTGG
GACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTT
ACTACTGTCTAGGCAGTTATGATTGTAGTCGTGGTGATTGTTTTGTTTTCGGCG
GAGGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 221).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 82:
CAAGTGCTGACCCAGACTCCATCCCCCGTGTCTGCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCAGGCCAGTCAGAATGTTTATAATAACAACTACC
TAGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCT
ACGTCCACTCTGGCATCTGGGGTCTCATCGCGATTCAGAGGCAGTGGATCTGG
GACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTT
ACTACTGTCTAGGCAGTTATGATTGTAGTCGTGGTGATTGTTTTGTTTTCGGCG
GAGGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATC
TTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTG
CTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGC
CCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGAC
AGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGA
AACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTC
ACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 222).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 83:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGCACAGTCTCTGGAATCGGCCTCAGTAGCTACTACATGCA
GTGGGTCCGCCAGTCTCCAGGGAGGGGGCTGGAATGGATCGGAGTCATTGGTA
GTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCCGATTCACCATCTCC
AAGACCTCGTCGACCACGGTGGATCTGAGAATGGCCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTACCAGAGGGGACATCTGGGGCCCGGGGACCCTCG
TCACCGTCTCGAGC (SEQ ID NO: 223).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 84:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGGACACC
CCTGACACTCACCTGCACAGTCTCTGGAATCGGCCTCAGTAGCTACTACATGCA
GTGGGTCCGCCAGTCTCCAGGGAGGGGGCTGGAATGGATCGGAGTCATTGGTA
GTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCCGATTCACCATCTCC
AAGACCTCGTCGACCACGGTGGATCTGAGAATGGCCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTACCAGAGGGGACATCTGGGGCCCGGGGACCCTCG
TCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTGGCAcCCT
CCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTCAAGGAC
TACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGACCAGCGG
CGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCTCAGCAG
CGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCTGCAACG
TGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCCCAAATC
TTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCCTGGGGG
GACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATCTCCC
GGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGACCCTGAG
GTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCAAGACAAA
GCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGTCCTCACCG
TCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGGTCTCCAAC
AAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGCAGCC
CCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGATGACCAAGA
ACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCGACATCGCC
GTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGACCACGCCTC
CCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCACCGTGGACA
AGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGAGGCT
CTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAATGA
(SEQ ID NO: 224).
In a further embodiment, polynucleotides encoding antibody fragments having
binding specificity to CGRP comprise, or alternatively consist of, one or more of the
polynucleotide sequences of SEQ ID NO: 225; SEQ ID NO: 226; and SEQ ID NO: 227
which correspond to polynucleotides encoding the complementarity-determining regions
(CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID NO: 81 or
the light chain sequence of SEQ ID NO: 82.
In a further embodiment, polynucleotides encoding antibody fragments having
binding specificity to CGRP comprise, or alternatively consist of, one or more of the
polynucleotide sequences of SEQ ID NO: 228; SEQ ID NO: 229; and SEQ ID NO: 230
which correspond to polynucleotides encoding the complementarity-determining regions
(CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID NO: 83
or the heavy chain sequence of SEQ ID NO: 84.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 221 encoding the light chain variable sequence of SEQ ID
NO: 81; the polynucleotide SEQ ID NO: 222 encoding the light chain sequence of SEQ ID
NO: 82; the polynucleotide SEQ ID NO: 223 encoding the heavy chain variable sequence
of SEQ ID NO: 83; the polynucleotide SEQ ID NO: 224 encoding the heavy chain
sequence of SEQ ID NO: 84; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 225; SEQ ID NO: 226; and SEQ ID NO: 227) of the light chain
variable sequence of SEQ ID NO: 81 or the light chain sequence of SEQ ID NO: 82; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 228;
SEQ ID NO: 229; and SEQ ID NO: 230) of the heavy chain variable sequence of SEQ ID
NO: 83 or the heavy chain sequence of SEQ ID NO: 84.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab9, the
polynucleotides encoding the full length Ab9 antibody comprise, or alternatively consist of,
the polynucleotide SEQ ID NO: 222 encoding the light chain sequence of SEQ ID NO: 82
and the polynucleotide SEQ ID NO: 224 encoding the heavy chain sequence of SEQ ID
NO: 84.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab9 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab9 or Fab fragments
thereof may be produced via expression of Ab9 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab10
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 91:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAATGTTTAcAATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTCGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
231).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 92:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAATGTTTAcAATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTCGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTGC
ACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGC
CTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTG
GAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGC
AGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAA
AGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCC
TGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO:
232).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 93:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGGCCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTAGTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtACCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
233).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 94:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGGCCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTAGTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtACCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACAAGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 234).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 235; SEQ ID NO: 236; and SEQ ID
NO: 237 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 91 or the light chain sequence of SEQ ID NO: 92.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 238; SEQ ID NO: 239; and SEQ ID
NO:240 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 93 or the heavy chain sequence of SEQ ID NO: 94.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 231 encoding the light chain variable sequence of SEQ ID
NO: 91; the polynucleotide SEQ ID NO: 232 encoding the light chain sequence of SEQ ID
NO: 92; the polynucleotide SEQ ID NO: 233 encoding the heavy chain variable sequence
of SEQ ID NO: 93; the polynucleotide SEQ ID NO: 234 encoding the heavy chain
sequence of SEQ ID NO: 94; polynucleotides encoding the complementarity-determining
regions (SEQ ID NO: 235; SEQ ID NO: 236; and SEQ ID NO: 237) of the light chain
variable sequence of SEQ ID NO: 91 or the light chain sequence of SEQ ID NO: 92; and
polynucleotides encoding the complementarity-determining regions (SEQ ID NO: 238;
SEQ ID NO: 239; and SEQ ID NO: 240) of the heavy chain variable sequence of SEQ ID
NO: 93 or the heavy chain sequence of SEQ ID NO: 94.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab10, the
polynucleotides encoding the full length Ab10 antibody comprise, or alternatively consist
of, the polynucleotide SEQ ID NO: 232 encoding the light chain sequence of SEQ ID NO:
92 and the polynucleotide SEQ ID NO: 234 encoding the heavy chain sequence of SEQ ID
NO: 94.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab10 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab10 or Fab fragments
thereof may be produced via expression of Ab10 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab11
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 101:
CAGGTGCTGACCCAGACTGCATCCCCCGTGTCTCCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCGGGCCAGTCAGAGTGTTTATTATAACAACTACCT
AGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCTA
CATCCACTCTGGCATCTGGGGTCTCATCGCGGTTCAAAGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTTAC
TACTGTCTAGGCAGTTATGATTGTAGTAATGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 241).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 102:
CAGGTGCTGACCCAGACTGCATCCCCCGTGTCTCCAGCTGTGGGAAG
CACAGTCACCATCAATTGCCGGGCCAGTCAGAGTGTTTATTATAACAACTACCT
AGCCTGGTATCAGCAGAAACCAGGGCAGCCTCCCAAGCAACTGATCTATTCTA
CATCCACTCTGGCATCTGGGGTCTCATCGCGGTTCAAAGGCAGTGGATCTGGG
ACACAGTTCACTCTCACCATCAGCGACGTGCAGTGTGACGATGCTGCCACTTAC
TACTGTCTAGGCAGTTATGATTGTAGTAATGGTGATTGTTTTGTTTTCGGCGGA
GGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATCTTC
CCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGCTG
AATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCCCT
CCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACAGC
ACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAAAC
ACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCACA
AAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 242).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 103:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGAGGATC
CCTGACACTCACCTGCACAGTCTCTGGAATCGACGTCACTAACTACTATATGCA
ATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTG
TGAATGGTAAGAGATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AAAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGCGACATCTGGGGCCCGGGGACCCTCG
TCACCGTCTCGAGC (SEQ ID NO: 243).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 104:
CAGTCGCTGGAGGAGTCCGGGGGTCGCCTGGTCACGCCTGGAGGATC
CCTGACACTCACCTGCACAGTCTCTGGAATCGACGTCACTAACTACTATATGCA
ATGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAATGGATCGGAGTCATTGGTG
TGAATGGTAAGAGATACTACGCGAGCTGGGCGAAAGGCCGATTCACCATCTCC
AAAACCTCGTCGACCACGGTGGATCTGAAAATGACCAGTCTGACAACCGAGGA
CACGGCCACCTATTTCTGTGCCAGAGGCGACATCTGGGGCCCGGGGACCCTCG
TCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTGGCAcCCT
CCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTCAAGGAC
TACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGACCAGCGG
CGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCTCAGCAG
CGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCTGCAACG
TGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCCCAAATC
TTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCCTGGGGG
GACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATGATCTCCC
GGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGACCCTGAG
GTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCAAGACAAA
GCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGTCCTCACCG
TCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGGTCTCCAAC
AAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAAGGGCAGCC
CCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGATGACCAAGA
ACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCGACATCGCC
GTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGACCACGCCTC
CCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCACCGTGGACA
AGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGCATGAGGCT
CTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGTAAATGA
(SEQ ID NO: 244).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 245; SEQ ID NO: 246; and SEQ ID
NO: 247 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 101 or the light chain sequence of SEQ ID NO: 102.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 248; SEQ ID NO: 249; and SEQ ID
NO: 250 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 103 or the heavy chain sequence of SEQ ID NO: 104.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 241 encoding the light chain variable sequence of SEQ ID
NO: 101; the polynucleotide SEQ ID NO: 242 encoding the light chain sequence of SEQ
ID NO: 102; the polynucleotide SEQ ID NO: 243 encoding the heavy chain variable
sequence of SEQ ID NO: 103; the polynucleotide SEQ ID NO: 244 encoding the heavy
chain sequence of SEQ ID NO: 104; polynucleotides encoding the complementarity-
determining regions (SEQ ID NO: 245; SEQ ID NO: 246; and SEQ ID NO: 247) of the
light chain variable sequence of SEQ ID NO: 101 or the light chain sequence of SEQ ID
NO: 102; and polynucleotides encoding the complementarity-determining regions (SEQ ID
NO: 248; SEQ ID NO: 249; and SEQ ID NO: 250) of the heavy chain variable sequence of
SEQ ID NO: 103 or the heavy chain sequence of SEQ ID NO: 104.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab11, the
polynucleotides encoding the full length Ab11 antibody comprise, or alternatively consist
of, the polynucleotide SEQ ID NO: 242 encoding the light chain sequence of SEQ ID NO:
102 and the polynucleotide SEQ ID NO: 244 encoding the heavy chain sequence of SEQ
ID NO: 104.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab11 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab11 or Fab fragments
thereof may be produced via expression of Ab11 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab12
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 111:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCG
GGCCAGTCAGAGTGTTTAcTATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
251).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 112:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCG
GGCCAGTCAGAGTGTTTAcTATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTAATGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTGC
ACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGC
CTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTG
GAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGC
AGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAA
AGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCC
TGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO:
252).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 113:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACGTCACTAACTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgg
gtcGGAGTCATTGGTGTGAATGGTAAGAGATACTACGCGAGCTGGGCGAAAGGC
cgattcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgt
atTTCtgtGCCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
253).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 114:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGACGTCACTAACTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgg
gtcGGAGTCATTGGTGTGAATGGTAAGAGATACTACGCGAGCTGGGCGAAAGGC
cgattcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgt
atTTCtgtGCCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACC
AAGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGC
ACAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGT
GTCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCC
TACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACAAGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 254).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 255; SEQ ID NO: 256; and SEQ ID
NO: 257 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 111 or the light chain sequence of SEQ ID NO: 112.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 258; SEQ ID NO: 259; and SEQ ID
NO: 260 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 113 or the heavy chain sequence of SEQ ID NO: 114.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 251 encoding the light chain variable sequence of SEQ ID
NO: 111; the polynucleotide SEQ ID NO: 252 encoding the light chain sequence of SEQ
ID NO: 112; the polynucleotide SEQ ID NO: 253 encoding the heavy chain variable
sequence of SEQ ID NO: 113; the polynucleotide SEQ ID NO: 254 encoding the heavy
chain sequence of SEQ ID NO: 114; polynucleotides encoding the complementarity-
determining regions (SEQ ID NO: 255; SEQ ID NO: 256; and SEQ ID NO: 257) of the
light chain variable sequence of SEQ ID NO: 111 or the light chain sequence of SEQ ID
NO: 112; and polynucleotides encoding the complementarity-determining regions (SEQ ID
NO: 258; SEQ ID NO: 259; and SEQ ID NO: 260) of the heavy chain variable sequence of
SEQ ID NO: 113 or the heavy chain sequence of SEQ ID NO: 114.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab12, the
polynucleotides encoding the full length Ab12 antibody comprise, or alternatively consist
of, the polynucleotide SEQ ID NO: 252 encoding the light chain sequence of SEQ ID NO:
112 and the polynucleotide SEQ ID NO: 254 encoding the heavy chain sequence of SEQ
ID NO: 114.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
of the invention described herein (infra), Fab fragments may be produced by enzymatic
digestion (e.g., papain) of Ab12 following expression of the full-length polynucleotides in
a suitable host. In another embodiment described, anti-CGRP antibodies such as Ab12 or
Fab fragments thereof may be produced via expression of Ab12 polynucleotides in
mammalian cells such as CHO, NSO or HEK 293 cells, fungal, insect, or microbial
systems such as yeast cells (for example diploid yeast such as diploid Pichia) and other
yeast strains. Suitable Pichia species include, but are not limited to, Pichia pastoris.
Antibody Ab13
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 121:
GCCATCGTGATGACCCAGACTCCATCTTCCAAGTCTGTCCCTGTGGGA
GACACAGTCACCATCAATTGCCAGGCCAGTGAGAGTCTTTATAATAACAACGC
CTTGGCCTGGTTTCAGCAGAAACCAGGGCAGCCTCCCAAGCGCCTGATCTATG
ATGCATCCAAACTGGCATCTGGGGTCCCATCGCGGTTCAGTGGCGGTGGGTCT
GGGACACAGTTCACTCTCACCATCAGTGGCGTGCAGTGTGACGATGCTGCCAC
TTACTACTGTGGAGGCTACAGAAGTGATAGTGTTGATGGTGTTGCTTTCGCCGG
AGGGACCGAGGTGGTGGTCAAACGT (SEQ ID NO: 261).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 122:
GCCATCGTGATGACCCAGACTCCATCTTCCAAGTCTGTCCCTGTGGGA
GACACAGTCACCATCAATTGCCAGGCCAGTGAGAGTCTTTATAATAACAACGC
CTTGGCCTGGTTTCAGCAGAAACCAGGGCAGCCTCCCAAGCGCCTGATCTATG
ATGCATCCAAACTGGCATCTGGGGTCCCATCGCGGTTCAGTGGCGGTGGGTCT
GGGACACAGTTCACTCTCACCATCAGTGGCGTGCAGTGTGACGATGCTGCCAC
TTACTACTGTGGAGGCTACAGAAGTGATAGTGTTGATGGTGTTGCTTTCGCCGG
AGGGACCGAGGTGGTGGTCAAACGTACGGTGGCTGCACCATCTGTCTTCATCT
TCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGCCTCTGTTGTGTGCCTGC
TGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTGGAAGGTGGATAACGCC
CTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGCAGGACAGCAAGGACA
GCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAAAGCAGACTACGAGAA
ACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCCTGAGCTCGCCCGTCA
CAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO: 262).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 123:
CAGTCGGTGGAGGAGTCCGGGGGAGGCCTGGTCCAGCCTGAGGGAT
CCCTGACACTCACCTGCACAGCCTCTGGATTCGACTTCAGTAGCAATGCAATGT
GGTGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGATCGGATGCATTTAc
AATGGTGATGGCAGCACATACTACGCGAGCTGGGTGAATGGCCGATTCTCCAT
CTCCAAAACCTCGTCGACCACGGTGACTCTGCAACTGAATAGTCTGACAGTCG
CGGACACGGCCACGTATTATTGTGCGAGAGATCTTGACTTGTGGGGCCCGGGC
ACCCTCGTCACCGTCTCGAGC (SEQ ID NO: 263).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 124:
CAGTCGGTGGAGGAGTCCGGGGGAGGCCTGGTCCAGCCTGAGGGAT
CCCTGACACTCACCTGCACAGCCTCTGGATTCGACTTCAGTAGCAATGCAATGT
GGTGGGTCCGCCAGGCTCCAGGGAAGGGGCTGGAGTGGATCGGATGCATTTAc
AATGGTGATGGCAGCACATACTACGCGAGCTGGGTGAATGGCCGATTCTCCAT
CTCCAAAACCTCGTCGACCACGGTGACTCTGCAACTGAATAGTCTGACAGTCG
CGGACACGGCCACGTATTATTGTGCGAGAGATCTTGACTTGTGGGGCCCGGGC
ACCCTCGTCACCGTCTCGAGCGCCTCCACCAAGGGCCCATCGGTCTTCCCCCTG
GCAcCCTCCTCCAAGAGCACCTCTGGGGGCACAGCGGCCCTGGGCTGCCTGGTC
AAGGACTACTTCCCCGAACCGGTGACGGTGTCGTGGAACTCAGGCGCCCTGAC
CAGCGGCGTGCACACCTTCCCGGCTGTCCTACAGTCCTCAGGACTCTACTCCCT
CAGCAGCGTGGTGACCGTGCCCTCCAGCAGCTTGGGCACCCAGACCTACATCT
GCAACGTGAATCACAAGCCCAGCAACACCAAGGTGGACAAGAGAGTTGAGCC
CAAATCTTGTGACAAAACTCACACATGCCCACCGTGCCCAGCACCTGAACTCC
TGGGGGGACCGTCAGTCTTCCTCTTCCCCCCAAAACCCAAGGACACCCTCATG
ATCTCCCGGACCCCTGAGGTCACATGCGTGGTGGTGGACGTGAGCCACGAAGA
CCCTGAGGTCAAGTTCAACTGGTACGTGGACGGCGTGGAGGTGCATAATGCCA
AGACAAAGCCGCGGGAGGAGCAGTACGCCAGCACGTACCGTGTGGTCAGCGT
CCTCACCGTCCTGCACCAGGACTGGCTGAATGGCAAGGAGTACAAGTGCAAGG
TCTCCAACAAAGCCCTCCCAGCCCCCATCGAGAAAACCATCTCCAAAGCCAAA
GGGCAGCCCCGAGAACCACAGGTGTACACCCTGCCCCCATCCCGGGAGGAGAT
GACCAAGAACCAGGTCAGCCTGACCTGCCTGGTCAAAGGCTTCTATCCCAGCG
ACATCGCCGTGGAGTGGGAGAGCAATGGGCAGCCGGAGAACAACTACAAGAC
CACGCCTCCCGTGCTGGACTCCGACGGCTCCTTCTTCCTCTACAGCAAGCTCAC
CGTGGACAAGAGCAGGTGGCAGCAGGGGAACGTCTTCTCATGCTCCGTGATGC
ATGAGGCTCTGCACAACCACTACACGCAGAAGAGCCTCTCCCTGTCTCCGGGT
AAATGA (SEQ ID NO: 264).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 265; SEQ ID NO: 266; and SEQ ID
NO: 267 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 121 or the light chain sequence of SEQ ID NO: 122.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 268; SEQ ID NO: 269; and SEQ ID
NO: 270 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 123 or the heavy chain sequence of SEQ ID NO: 124.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 261 encoding the light chain variable sequence of SEQ ID
NO: 121; the polynucleotide SEQ ID NO: 262 encoding the light chain sequence of SEQ
ID NO: 122; the polynucleotide SEQ ID NO: 263 encoding the heavy chain variable
sequence of SEQ ID NO: 123; the polynucleotide SEQ ID NO: 264 encoding the heavy
chain sequence of SEQ ID NO: 124; polynucleotides encoding the complementarity-
determining regions (SEQ ID NO: 265; SEQ ID NO: 266; and SEQ ID NO: 267) of the
light chain variable sequence of SEQ ID NO: 121 or the light chain sequence of SEQ ID
NO: 122; and polynucleotides encoding the complementarity-determining regions (SEQ ID
NO: 268; SEQ ID NO: 269; and SEQ ID NO: 270) of the heavy chain variable sequence of
SEQ ID NO: 123 or the heavy chain sequence of SEQ ID NO: 124.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab13, the
polynucleotides encoding the full length Ab13 antibody comprise, or alternatively consist
of, the polynucleotide SEQ ID NO: 262 encoding the light chain sequence of SEQ ID NO:
122 and the polynucleotide SEQ ID NO: 264 encoding the heavy chain sequence of SEQ
ID NO: 124.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab13 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab13 or Fab fragments
thereof may be produced via expression of Ab13 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
Antibody Ab14
Further described are polynucleotides encoding antibody polypeptides having
binding specificity to CGRP. In one embodiment described, polynucleotides described
comprise, or alternatively consist of, the following polynucleotide sequence encoding the
variable light chain polypeptide sequence of SEQ ID NO: 131:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAATGTTTAcAATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTCGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgt (SEQ ID NO:
271).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the light chain
polypeptide sequence of SEQ ID NO: 132:
CAAGTGCTGacccagtctccatcctccctgtctgcatctgtaggagacagagtcaccatcAATtgcCA
GGCCAGTCAGAATGTTTAcAATAACAACTACCTAGCCtggtatcagcagaaaccagggaaagtt
cctaagCAActgatctatTCTACATCCACTCTGGCATCTggggtcccatctcgtttcagtggcagtggatctgg
gacagatttcactctcaccatcagcagcctgcagcctgaagatgttgcaacttattactgtCTGGGCAGTTATGATTG
TAGTCGTGGTGATTGTTTTGTTttcggcggaggaaccaaggtggaaatcaaacgtACGGTGGCTGC
ACCATCTGTCTTCATCTTCCCGCCATCTGATGAGCAGTTGAAATCTGGAACTGC
CTCTGTTGTGTGCCTGCTGAATAACTTCTATCCCAGAGAGGCCAAAGTACAGTG
GAAGGTGGATAACGCCCTCCAATCGGGTAACTCCCAGGAGAGTGTCACAGAGC
AGGACAGCAAGGACAGCACCTACAGCCTCAGCAGCACCCTGACGCTGAGCAA
AGCAGACTACGAGAAACACAAAGTCTACGCCTGCGAAGTCACCCATCAGGGCC
TGAGCTCGCCCGTCACAAAGAGCTTCAACAGGGGAGAGTGTTAG (SEQ ID NO:
272).
In another embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the variable heavy
chain polypeptide sequence of SEQ ID NO: 133:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGGCCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTAGTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtACCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGC (SEQ ID NO:
273).
In one embodiment described, polynucleotides described comprise, or
alternatively consist of, the following polynucleotide sequence encoding the heavy chain
polypeptide sequence of SEQ ID NO: 134:
gaggtgcagctTgtggagtctgggggaggcttggtccagcctggggggtccctgagactctcctgtgcaGTCt
ctggaATCGGCCTCagtAGCTACTACATGCAAtgggtccgtcaggctccagggaaggggctggagtgggt
cGGAGTCATTGGTAGTGATGGTAAGACATACTACGCGACCTGGGCGAAAGGCcg
attcaccatctccagagacaattccaagACCACGGTGtatcttcaaatgaacagcctgagagctgaggacactgctgtgtat
TTCtgtACCAGAGGGGACATCtggggccaagggaccctcgtcaccgtcTCGAGCGCCTCCACCA
AGGGCCCATCGGTCTTCCCCCTGGCAcCCTCCTCCaAGAGCACCTCTGGGGGCA
CAGCGGCCCTGGGCTGCCTGGTCAAGGACTACTTCCCCGAACCGGTGACGGTG
TCGTGGAACTCAGGCGCCCTGACCAGCGGCGTGCACACCTTCCCGGCTGTCCT
ACAGTCCTCAGGACTCTACTCCCTCAGCAGCGTGGTGACCGTGCCCTCCAGCA
GCTTGGGCACCCAGACCTACATCTGCAACGTGAATCACAAGCCCAGCAACACC
AAGGTGGACGCGAGAGTTGAGCCCAAATCTTGTGACAAAACTCACACATGCCC
ACCGTGCCCAGCACCTGAACTCCTGGGGGGACCGTCAGTCTTCCTCTTCCCCCC
AAAACCCAAGGACACCCTCATGaTCTCCCgGACCCCTGAGGTCACATGCGTGGT
GGTGGACGTGAGCCACGAAGACCCTGAGGTCAAGTTCAACTGGTACGTGGACG
GCGTGGAGGTGCATAATGCCAAGACAAAGCCGCGGGAGGAGCAGTACGCCAG
CACGTACCGTGTGGTCAGCGTCCTCACCGTCCTGCACCAGGACTGGCTGAATG
GCAAGGAGTACAAGTGCAAGGTCTCCAACAAAGCCCTCCCAGCCCCCATCGAG
AAAACCATCTCCAAAGCCAAAGGGCAGCCCCGAGAACCACAGGTGTACACCCT
GCCCCCATCCCGGGAGGAGATGACCAAGAACCAGGTCAGCCTGACCTGCCTGG
TCAAAGGCTTCTATCCCAGCGACATCGCCGTGGAGTGGGAGAGCAATGGGCAG
CCGGAGAACAACTACAAGACCACGCCTCCCGTGCTGGACTCCGACGGCTCCTT
CTTCCTCTACAGCAAGCTCACCGTGGACAAGAGCAGGTGGCAGCAGGGGAACG
TCTTCTCATGCTCCGTGATGCATGAGGCTCTGCACAACCACTACACGCAGAAG
AGCCTCTCCCTGTCTCCGGGTAAATGA (SEQ ID NO: 274).
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 275; SEQ ID NO: 276; and SEQ ID
NO: 277 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the light chain variable sequence of SEQ ID
NO: 131 or the light chain sequence of SEQ ID NO: 132.
In a further embodiment described, polynucleotides encoding antibody
fragments having binding specificity to CGRP comprise, or alternatively consist of, one or
more of the polynucleotide sequences of SEQ ID NO: 278; SEQ ID NO: 279; and SEQ ID
NO: 280 which correspond to polynucleotides encoding the complementarity-determining
regions (CDRs, or hypervariable regions) of the heavy chain variable sequence of SEQ ID
NO: 133 or the heavy chain sequence of SEQ ID NO: 134.
Also described are polynucleotide sequences including one or more of the
polynucleotide sequences encoding antibody fragments described herein. In one
embodiment described, polynucleotides encoding antibody fragments having binding
specificity to CGRP comprise, or alternatively consist of, one, two, three or more,
including all of the following polynucleotides encoding antibody fragments: the
polynucleotide SEQ ID NO: 271 encoding the light chain variable sequence of SEQ ID
NO: 131; the polynucleotide SEQ ID NO: 272 encoding the light chain sequence of SEQ
ID NO: 132; the polynucleotide SEQ ID NO: 273 encoding the heavy chain variable
sequence of SEQ ID NO: 133; the polynucleotide SEQ ID NO: 274 encoding the heavy
chain sequence of SEQ ID NO: 134; polynucleotides encoding the complementarity-
determining regions (SEQ ID NO: 275; SEQ ID NO: 276; and SEQ ID NO: 277) of the
light chain variable sequence of SEQ ID NO: 131 or the light chain sequence of SEQ ID
NO: 132; and polynucleotides encoding the complementarity-determining regions (SEQ ID
NO: 278; SEQ ID NO: 279; and SEQ ID NO: 280) of the heavy chain variable sequence of
SEQ ID NO: 133 or the heavy chain sequence of SEQ ID NO: 134.
In a preferred embodiment described, polynucleotides described comprise, or
alternatively consist of, polynucleotides encoding Fab (fragment antigen binding)
fragments having binding specificity for CGRP. With respect to antibody Ab14, the
polynucleotides encoding the full length Ab14 antibody comprise, or alternatively consist
of, the polynucleotide SEQ ID NO: 272 encoding the light chain sequence of SEQ ID NO:
132 and the polynucleotide SEQ ID NO: 274 encoding the heavy chain sequence of SEQ
ID NO: 134.
Another embodiment described contemplates these polynucleotides incorporated
into an expression vector for expression in mammalian cells such as CHO, NSO, HEK-293,
or in fungal, insect, or microbial systems such as yeast cells such as the yeast Pichia.
Suitable Pichia species include, but are not limited to, Pichia pastoris. In one embodiment
described herein (infra), Fab fragments may be produced by enzymatic digestion (e.g.,
papain) of Ab14 following expression of the full-length polynucleotides in a suitable host.
In another embodiment described, anti-CGRP antibodies such as Ab14 or Fab fragments
thereof may be produced via expression of Ab14 polynucleotides in mammalian cells such
as CHO, NSO or HEK 293 cells, fungal, insect, or microbial systems such as yeast cells
(for example diploid yeast such as diploid Pichia) and other yeast strains. Suitable Pichia
species include, but are not limited to, Pichia pastoris.
In one embodiment, described is an isolated polynucleotide comprising a
polynucleotide encoding an anti-CGRP VH antibody amino acid sequence selected from
SEQ ID NO: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123, or 133, or encoding a
variant thereof wherein at least one framework residue (FR residue) has been substituted
with an amino acid present at the corresponding position in a rabbit anti-CGRP antibody
VH polypeptide or a conservative amino acid substitution.
In another embodiment, described is an isolated polynucleotide comprising the
polynucleotide sequence encoding an anti-CGRP VL antibody amino acid sequence of 1,
11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, or encoding a variant thereof
wherein at least one framework residue (FR residue) has been substituted with an amino
acid present at the corresponding position in a rabbit anti-CGRP antibody VL polypeptide
or a conservative amino acid substitution.
In yet another embodiment, described is one or more heterologous
polynucleotides comprising a sequence encoding the polypeptides contained in SEQ ID
NO:1 and SEQ ID NO:3; SEQ ID NO:11 and SEQ ID NO:13; SEQ ID NO:21 and SEQ ID
NO:23; SEQ ID NO:31 and SEQ ID NO:33; SEQ ID NO:41 and SEQ ID NO:43; SEQ ID
NO:51 and SEQ ID NO:53, SEQ ID NO:61 and SEQ ID NO:63; SEQ ID NO:71 and SEQ
ID NO:73; SEQ ID NO:81 and SEQ ID NO:83; SEQ ID NO:91 and SEQ ID NO:93; SEQ
ID NO:101 and SEQ ID NO:103; SEQ ID NO:111 and SEQ ID NO:113; SEQ ID NO:121
and SEQ ID NO:123; or SEQ ID NO:131 and SEQ ID NO:133.
In another embodiment, described is an isolated polynucleotide that expresses a
polypeptide containing at least one CDR polypeptide derived from an anti-CGRP antibody
wherein said expressed polypeptide alone specifically binds CGRP or specifically binds
CGRP when expressed in association with another polynucleotide sequence that expresses
a polypeptide containing at least one CDR polypeptide derived from an anti-CGRP
antibody wherein said at least one CDR is selected from those contained in the VL or VH
polypeptides of SEQ ID NO: 1, 3, 11, 13, 21, 23, 31, 33, 41, 43, 51, 53, 61, 63, 71, 73, 81,
83, 91, 93, 101, 103, 111, 113, 121, 123, 131, or SEQ ID NO:133.
Host cells and vectors comprising said polynucleotides are also described.
Further described are vectors comprising the polynucleotide sequences encoding
the variable heavy and light chain polypeptide sequences, as well as the individual
complementarity-determining regions (CDRs, or hypervariable regions), as set forth herein,
as well as host cells comprising said vector sequences. In one embodiment described, the
host cell is a yeast cell. In another embodiment described, the yeast host cell belongs to the
genus Pichia.
B-cell Screening and Isolation
In one embodiment, described is the preparation and isolation of a clonal
population of antigen-specific B cells that may be used for isolating at least one CGRP
antigen-specific cell, which can be used to produce a monoclonal antibody against CGRP,
which is specific to a desired CGRP antigen, or a nucleic acid sequence corresponding to
such an antibody. Methods of preparing and isolating said clonal population of antigen-
specific B cells are taught, for example, in U.S. patent publication no. US 2007/0269868 to
Carvalho-Jensen et al., the disclosure of which is herein incorporated by reference in its
entirety. Methods of preparing and isolating said clonal population of antigen-specific B
cells are also taught herein in the examples. Methods of “enriching” a cell population by
size or density are known in the art. See, e.g., U.S. Patent 5,627,052. These steps can be
used in addition to enriching the cell population by antigen-specificity.
Methods of Humanizing Antibodies
In another embodiment, described are methods for humanizing antibody heavy
and light chains. Methods for humanizing antibody heavy and light chains which may be
applied to anti-CGRP antibodies are taught, for example, in U.S. patent application
publication no. US 2009/0022659 to Olson et al., and in U.S. patent no. 7,935,340 to
Garcia-Martinez et al., the disclosures of each of which are herein incorporated by
reference in their entireties.
Methods of Producing Antibodies and Fragments thereof
In another embodiment, described are methods for producing anti-CGRP
antibodies and fragments thereof diarrhea. Methods for producing anti-CGRP antibodies
and fragments thereof secreted from polyploidal, preferably diploid or tetraploid strains of
mating competent yeast are taught, for example, in U.S. patent application publication no.
US 2009/0022659 to Olson et al., and in U.S. patent no. 7,935,340 to Garcia-Martinez et
al., the disclosures of each of which are herein incorporated by reference in their entireties.
Other methods of producing antibodies are well known to those of ordinary skill
in the art. For example, methods of producing chimeric antibodies are now well known in
the art (See, for example, U.S. Patent No. 4,816,567 to Cabilly et al.; Morrison et al.,
P.N.A.S. USA, 81:8651-55 (1984); Neuberger, M.S. et al., Nature, 314:268-270 (1985);
Boulianne, G.L. et al., Nature, 312:643-46 (1984), the disclosures of each of which are
herein incorporated by reference in their entireties).
Likewise, other methods of producing humanized antibodies are now well
known in the art (See, for example, U.S. Patent Nos. 5,530,101, 5,585,089, 5,693,762, and
6,180,370 to Queen et al; U.S. Patent Nos. 5,225,539 and 6,548,640 to Winter; U.S. Patent
Nos. 6,054,297, 6,407,213 and 6,639,055 to Carter et al; U.S. Patent No. 6,632,927 to
Adair; Jones, P.T. et al, Nature, 321:522-525 (1986); Reichmann, L., et al, Nature,
332:323-327 (1988); Verhoeyen, M, et al, Science, 239:1534-36 (1988), the disclosures of
each of which are herein incorporated by reference in their entireties).
Antibody polypeptides described having CGRP binding specificity diarrhea may
also be produced by constructing, using conventional techniques well known to those of
ordinary skill in the art, an expression vector containing an operon and a DNA sequence
encoding an antibody heavy chain in which the DNA sequence encoding the CDRs
required for antibody specificity is derived from a non-human cell source, preferably a
rabbit B-cell source, while the DNA sequence encoding the remaining parts of the antibody
chain is derived from a human cell source.
A second expression vector is produced using the same conventional means well
known to those of ordinary skill in the art, said expression vector containing an operon and
a DNA sequence encoding an antibody light chain in which the DNA sequence encoding
the CDRs required for antibody specificity is derived from a non-human cell source,
preferably a rabbit B-cell source, while the DNA sequence encoding the remaining parts of
the antibody chain is derived from a human cell source.
The expression vectors are transfected into a host cell by convention techniques
well known to those of ordinary skill in the art to produce a transfected host cell, said
transfected host cell cultured by conventional techniques well known to those of ordinary
skill in the art to produce said antibody polypeptides.
The host cell may be co-transfected with the two expression vectors described
above, the first expression vector containing DNA encoding an operon and a light chain-
derived polypeptide and the second vector containing DNA encoding an operon and a
heavy chain-derived polypeptide. The two vectors contain different selectable markers, but
preferably achieve substantially equal expression of the heavy and light chain polypeptides.
Alternatively, a single vector may be used, the vector including DNA encoding both the
heavy and light chain polypeptides. The coding sequences for the heavy and light chains
may comprise cDNA, genomic DNA, or both.
The host cells used to express the antibody polypeptides may be either a
bacterial cell such as E. coli, or a eukaryotic cell such as P. pastoris. In one embodiment of
the invention, a mammalian cell of a well-defined type for this purpose, such as a myeloma
cell, a Chinese hamster ovary (CHO) cell line, a NSO cell line, or a HEK293 cell line may
be used.
The general methods by which the vectors may be constructed, transfection
methods required to produce the host cell and culturing methods required to produce the
antibody polypeptides from said host cells all include conventional techniques. Although
preferably the cell line used to produce the antibody is a mammalian cell line, any other
suitable cell line, such as a bacterial cell line such as an E. coli-derived bacterial strain, or a
yeast cell line, may alternatively be used.
Similarly, once produced the antibody polypeptides may be purified according to
standard procedures in the art, such as for example cross-flow filtration, ammonium
sulphate precipitation, affinity column chromatography and the like.
The antibody polypeptides described herein may also be used for the design and
synthesis of either peptide or non-peptide mimetics that would be useful for the same
therapeutic applications as the antibody polypeptides described. See, for example,
Saragobi et al, Science, 253:792-795 (1991), the contents of which is herein incorporated
by reference in its entirety.
Screening Assays
Also described are screening assays designed to assist in the identification of
diseases and disorders associated with CGRP and diarrhea in patients exhibiting symptoms
of a CGRP associated disease or disorder.
In one embodiment described, the anti-CGRP antibodies described, or CGRP
binding fragments thereof, are used to detect the presence of CGRP in a biological sample
obtained from a patient exhibiting symptoms of a disease or disorder associated with
CGRP and diarrhea. The presence of CGRP, or elevated levels thereof especially in the
colon when compared to pre-disease levels of CGRP in a comparable biological sample,
may be beneficial in diagnosing a disease or disorder associated with CGRP associated
with diarrhea.
Another embodiment described provides a diagnostic or screening assay to assist
in diagnosis of diseases or disorders associated with CGRP in patients exhibiting symptoms
of a CGRP associated disease or disorder identified herein, comprising assaying the level
of CGRP expression in a biological sample from said patient using a post-translationally
modified anti-CGRP antibody or binding fragment thereof. The anti-CGRP antibody or
binding fragment thereof may be post-translationally modified to include a detectable
moiety such as set forth previously in the disclosure.
The CGRP level in the biological sample is determined using a modified anti-
CGRP antibody or binding fragment thereof as set forth herein, and comparing the level of
CGRP in the biological sample against a standard level of CGRP (e.g., the level in normal
biological samples). The skilled clinician would understand that some variability may exist
between normal biological samples, and would take that into consideration when
evaluating results. In one embodiment of the invention, the anti-CGRP antibodies of the
invention may be used to correlate CGRP expression levels with a particular stage of
cancerous development. One skilled in the art would be able to measure CGRP in
numerous subjects in order to establish ranges of CGRP expression that correspond to
clinically defined stages of cancerous development. These ranges will allow the skilled
practitioner to measure CGRP in a subject diagnosed with a cancer and correlate the levels
in each subject with a range that corresponds to a stage of said cancer. One skilled in the
art would understand that by measuring CGRP in the patient at different intervals, the
progression of the cancer can be determined.
The above-recited assay may also be useful in monitoring a disease or disorder,
where the level of CGRP obtained in a biological sample from a patient believed to have a
CGRP associated disease or disorder is compared with the level of CGRP in prior
biological samples from the same patient, in order to ascertain whether the CGRP level in
said patient has changed with, for example, a treatment regimen.
Also described is a method of in vivo imaging which detects the presence of
cells which express CGRP comprising administering a diagnostically effective amount of a
diagnostic composition. Said in vivo imaging is useful for the detection or imaging of
CGRP expressing tumors or metastases, for example, and can be useful as part of a
planning regimen for the design of an effective cancer treatment protocol. The treatment
protocol may include, for example, one or more of radiation, chemotherapy, cytokine
therapy, gene therapy, and antibody therapy, as well as an anti-CGRP antibody or fragment
thereof.
Further described is for a kit for detecting binding of an anti-CGRP antibody of
the invention to CGRP. In particular, the kit may be used to detect the presence of a CGRP
specifically reactive with an anti-CGRP antibody described or an immunoreactive fragment
thereof. The kit may also include an antibody bound to a substrate, a secondary antibody
reactive with the antigen and a reagent for detecting a reaction of the secondary antibody
with the antigen. Such a kit may be an ELISA kit and can comprise the substrate, primary
and secondary antibodies when appropriate, and any other necessary reagents such as
detectable moieties, enzyme substrates, and color reagents, for example as described
herein. The diagnostic kit may also be in the form of an immunoblot kit. The diagnostic
kit may also be in the form of a chemiluminescent kit (Meso Scale Discovery,
Gaithersburg, MD). The diagnostic kit may also be a lanthanide-based detection kit
(PerkinElmer, San Jose, CA).
A skilled clinician would understand that a biological sample includes, but is not
limited to, sera, plasma, urine, saliva, mucous, pleural fluid, synovial fluid and spinal fluid.
Methods of Ameliorating or Reducing Symptoms of, or Treating, or Preventing,
Diseases and Disorders Associated with, CGRP
The anti-CGRP antibodies described herein, or fragments thereof, are useful for
ameliorating or reducing the symptoms of, or treating, or preventing, diseases and disorders
associated with CGRP especially diarrhea. In a preferred embodiment the anti-CGRP
antibodies or antibody fragments will be shown to be efficacious (block adverse side
effects associated with excess circulating CGRP including diarrhea in the rodent animal
model disclosed in Example 8.
Anti-CGRP antibodies described herein, or fragments thereof, as well as
combinations, can also be administered in a therapeutically effective amount to patients in
need of treatment of diseases and disorders associated with CGRP in the form of a
pharmaceutical composition as described in greater detail below.
In another embodiment described, anti-CGRP antibodies described herein, or
fragments thereof, are useful for ameliorating or reducing the symptoms of, or treating, or
preventing diarrhea in CGRP related conditions including migraines (with or without aura),
weight loss, cancer or tumors, angiogenesis associated with cancer or tumor growth,
angiogenesis associated with cancer or tumor survival, pain, hemiplagic migraines, cluster
headaches, migrainous neuralgia, chronic headaches, tension headaches, general
headaches, hot flushes, chronic paroxysomal hemicrania, secondary headaches due to an
underlying structural problem in the head or neck, cranial neuralgia, sinus headaches (such
as for example associated with sinusitis), and allergy-induced headaches or migraines.
In one embodiment described, anti-CGRP antibodies described herein, or
fragments thereof and/or with a second agent, are useful for ameliorating or reducing the
symptoms of, or treating, or preventing, diarrhea associated with the following non-limiting
listing of CGRP related diseases and disorders: pain, inflammatory pain, post-operative
incision pain, complex regional pain syndrome, cancer pain, primary or metastatic bone
cancer pain, fracture pain, chronic pain, osteoporotic fracture pain, pain resulting from
burn, osteoporosis, gout joint pain, abdominal pain, pain associated with sickle cell crises,
and other nociceptic pain, as well as hepatocellular carcinoma, breast cancer, liver
cirrhosis, neurogenic pain, neuropathic pain, nociceptic pain, trigeminal neuralgia, post-
herpetic neuralgia, phantom limb pain, fibromyalgia, menstrual pain, ovarialgia, reflex
sympathetic dystrophy, neurogenic pain, osteoarthritis or rheumatoid arthritis pain, lower
back pain, diabetic neuropathy, sciatica, or pain or visceral pain associated with: gastro-
esophageal reflux, dyspepsia, irritable bowel syndrome, irritable colon, spastic colon,
mucous colitis, inflammatory bowel disease, Crohn’s disease, ileitis, ulcerative colitis,
renal colic, dysmenorrhea, cystitis, menstrual period, labor, menopause, prostatitis,
pancreatitis, renal colic, dysmenorrhea, cystitis, including interstitial cystitis (IC), surgery
associated with the ileus, diverticulitis, peritonitis, pericarditis, hepatitis, appendicitis,
colitis, cholecystitis, endometriosis, chronic and/or acute pancreatitis, myocardial
infarction, kidney pain, pleural pain, prostatitis, pelvic pain, trauma to an organ, chronic
nociceptive pain, chronic neuropathic pain, chronic inflammatory pain, fibromyalgia,
breakthrough pain and persistent pain, and cancer pain arising from malignancy or from
cancer preferably selected from one or more of: adenocarcinoma in glandular tissue,
blastoma in embryonic tissue of organs, carcinoma in epithelial tissue, leukemia in tissues
that form blood cells, lymphoma in lymphatic tissue, myeloma in bone marrow, sarcoma in
connective or supportive tissue, adrenal cancer, AIDS-related lymphoma, anemia, bladder
cancer, bone cancer, brain cancer, breast cancer, carcinoid tumours, cervical cancer,
chemotherapy, colon cancer, cytopenia, , endometrial cancer, esophageal cancer, gastric
cancer, head cancer, neck cancer, hepatobiliary cancer, kidney cancer, leukemia, liver
cancer, lung cancer, lymphoma, Hodgkin's disease, lymphoma, non- Hodgkin's, nervous
system tumours, oral cancer, ovarian cancer, pancreatic cancer, prostate cancer, rectal
cancer, skin cancer, stomach cancer, testicular cancer, thyroid cancer, urethral cancer, bone
cancer, sarcomas cancer of the connective tissue, cancer of bone tissue, cancer of blood-
forming cells, cancer of bone marrow, multiple myeloma, leukaemia, primary or secondary
bone cancer, tumours that metastasize to the bone, tumours infiltrating the nerve and
hollow viscus, tumours near neural structures. Further preferably the cancer pain comprises
visceral pain, preferably visceral pain which arises from pancreatic cancer and/or
metastases in the abdomen. Further preferably the cancer pain comprises somatic pain,
preferably somatic pain due to one or more of bone cancer, metastasis in the bone,
postsurgical pain, sarcomas cancer of the connective tissue, cancer of bone tissue, cancer of
blood-forming cells of the bone marrow, multiple myeloma, leukaemia, primary or
secondary bone cancer.
In another embodiment described, anti-CGRP antibodies described herein, or
fragments thereof and/or with a second agent, are useful for ameliorating or reducing the
symptoms of, or treating, or preventing, the following non-limiting listing of diseases and
disorders: cancer or tumors, angiogenesis associated with cancer or tumor growth,
angiogenesis associated with cancer or tumor survival.
In another embodiment described, anti-CGRP antibodies described herein, or
fragments thereof and/or with a second agent, are useful for ameliorating or reducing the
symptoms of, or treating, or preventing, the following non-limiting listing of diseases and
disorders: neurogenic, neuropathic or nociceptic pain. Neuropathic pain may include, but
is not limited to, trigeminal neuralgia, post-herpetic neuralgia, phantom limb pain,
fibromyalgia, menstrual pain, ovarialgia, reflex sympathetic dystrophy and neurogenic
pain. In other preferred embodiments, osteoarthritis or rheumatoid arthritis pain, lower
back pain, diabetic neuropathy, sciatica, and other neuropathic pain.
In another embodiment described, anti-CGRP antibodies described herein, or
fragments thereof and/or with a second agent, are useful for ameliorating or reducing the
symptoms of, or treating, or preventing, the following non-limiting listing of diseases and
disorders: diarrhea, and visceral pain associated with gastro-esophageal reflux, dyspepsia,
irritable bowel syndrome, inflammatory bowel disease, Crohn’s disease, ileitis, ulcerative
colitis, renal colic, dysmenorrhea, cystitis, menstrual period, labor, menopause, prostatitis,
or pancreatitis.
Administration
In one embodiment described, the anti-CGRP antibodies described herein, or
CGRP binding fragments thereof, as well as combinations of said antibodies or antibody
fragments, are administered to a subject at a concentration of between about 0.1 and 100.0
mg/kg of body weight of recipient subject. In a preferred embodiment described, the anti-
CGRP antibodies described herein, or CGRP binding fragments thereof, as well as
combinations of said antibodies or antibody fragments, are administered to a subject at a
concentration of about 0.4 mg/kg of body weight of recipient subject. In a preferred
embodiment described, the anti-CGRP antibodies described herein, or CGRP binding
fragments thereof, as well as combinations of said antibodies or antibody fragments, are
administered to a recipient subject with a frequency of once every twenty-six weeks or less,
such as once every sixteen weeks or less, once every eight weeks or less, once every four
weeks or less, once every two weeks or less, once every week or less, or once daily or less.
Fab fragments may be administered every two weeks or less, every week or less,
once daily or less, multiple times per day, and/or every few hours. In one embodiment
described, a patient receives Fab fragments of 0.1 mg/kg to 40 mg/kg per day given in
divided doses of 1 to 6 times a day, or in a sustained release form, effective to obtain
desired results.
It is to be understood that the concentration of the antibody or Fab administered
to a given patient may be greater or lower than the exemplary administration
concentrations set forth above in paragraphs [0566] and [0567].
A person of skill in the art would be able to determine an effective dosage and
frequency of administration through routine experimentation, for example guided by the
disclosure herein and the teachings in Goodman, L. S., Gilman, A., Brunton, L. L., Lazo, J.
S., & Parker, K. L. (2006). Goodman & Gilman's the pharmacological basis of
therapeutics. New York: McGraw-Hill; Howland, R. D., Mycek, M. J., Harvey, R. A.,
Champe, P. C., & Mycek, M. J. (2006). Pharmacology. Lippincott's illustrated reviews.
Philadelphia: Lippincott Williams & Wilkins; and Golan, D. E. (2008). Principles of
pharmacology: the pathophysiologic basis of drug therapy. Philadelphia, Pa., [etc.]:
Lippincott Williams & Wilkins.
In another embodiment described, the anti-CGRP antibodies described herein, or
CGRP binding fragments thereof, as well as combinations of said antibodies or antibody
fragments, are administered to a subject in a pharmaceutical formulation.
A “pharmaceutical composition” refers to a chemical or biological composition
suitable for administration to a mammal. Such compositions may be specifically
formulated for administration via one or more of a number of routes, including but not
limited to buccal, epicutaneous, epidural, inhalation, intraarterial, intracardial,
intracerebroventricular, intradermal, intramuscular, intranasal, intraocular, intraperitoneal,
intraspinal, intrathecal, intravenous, oral, parenteral, rectally via an enema or suppository,
subcutaneous, subdermal, sublingual, transdermal, and transmucosal. In addition,
administration can occur by means of injection, powder, liquid, gel, drops, or other means
of administration.
In one embodiment described, the anti-CGRP antibodies described herein, or
CGRP binding fragments thereof, as well as combinations of said antibodies or antibody
fragments, may be optionally administered in combination with one or more active agents.
Such active agents include analgesic, anti-histamine, antipyretic, anti-inflammatory,
antibiotic, antiviral, and anti-cytokine agents. Active agents include agonists, antagonists,
and modulators of TNF- α, IL-2, IL-4, IL-6, IL-10, IL-12, IL-13, IL-18, IFN- α, IFN- γ,
BAFF, CXCL13, IP-10, VEGF, EPO, EGF, HRG, Hepatocyte Growth Factor (HGF),
Hepcidin, including antibodies reactive against any of the foregoing, and antibodies
reactive against any of their receptors. Active agents also include but are not limited to 2-
Arylpropionic acids, Aceclofenac, Acemetacin, Acetylsalicylic acid (Aspirin), Alclofenac,
Alminoprofen, Amoxiprin, Ampyrone, Arylalkanoic acids, Azapropazone,
Benorylate/Benorilate, Benoxaprofen, Bromfenac, Carprofen, Celecoxib, Choline
magnesium salicylate, Clofezone, COX-2 inhibitors, Dexibuprofen, Dexketoprofen,
Diclofenac, Diflunisal, Droxicam, Ethenzamide, Etodolac, Etoricoxib, Faislamine, fenamic
acids, Fenbufen, Fenoprofen, Flufenamic acid, Flunoxaprofen, Flurbiprofen, Ibuprofen,
Ibuproxam, Indometacin, Indoprofen, Kebuzone, Ketoprofen, Ketorolac, Lornoxicam,
Loxoprofen, Lumiracoxib, Magnesium salicylate, Meclofenamic acid, Mefenamic acid,
Meloxicam, Metamizole, Methyl salicylate, Mofebutazone, Nabumetone, Naproxen, N-
Arylanthranilic acids, Nerve Growth Factor (NGF), Oxametacin, Oxaprozin, Oxicams,
Oxyphenbutazone, Parecoxib, Phenazone, Phenylbutazone, Phenylbutazone, Piroxicam,
Pirprofen, profens, Proglumetacin, Pyrazolidine derivatives, Rofecoxib, Salicyl salicylate,
Salicylamide, Salicylates, Substance P, Sulfinpyrazone, Sulindac, Suprofen, Tenoxicam,
Tiaprofenic acid, Tolfenamic acid, Tolmetin, and Valdecoxib.
An anti-histamine can be any compound that opposes the action of histamine or
its release from cells (e.g., mast cells). Anti-histamines include but are not limited to
acrivastine, astemizole, azatadine, azelastine, betatastine, brompheniramine, buclizine,
cetirizine, cetirizine analogues, chlorpheniramine, clemastine, CS 560, cyproheptadine,
desloratadine, dexchlorpheniramine, ebastine, epinastine, fexofenadine, HSR 609,
hydroxyzine, levocabastine, loratidine, methscopolamine, mizolastine, norastemizole,
phenindamine, promethazine, pyrilamine, terfenadine, and tranilast.
Antibiotics include but are not limited to Amikacin, Aminoglycosides,
Amoxicillin, Ampicillin, Ansamycins, Arsphenamine, Azithromycin, Azlocillin,
Aztreonam, Bacitracin, Carbacephem, Carbapenems, Carbenicillin, Cefaclor, Cefadroxil,
Cefalexin, Cefalothin, Cefalotin, Cefamandole, Cefazolin, Cefdinir, Cefditoren, Cefepime,
Cefixime, Cefoperazone, Cefotaxime, Cefoxitin, Cefpodoxime, Cefprozil, Ceftazidime,
Ceftibuten, Ceftizoxime, Ceftobiprole, Ceftriaxone, Cefuroxime, Cephalosporins,
Chloramphenicol, Cilastatin, Ciprofloxacin, Clarithromycin, Clindamycin, Cloxacillin,
Colistin, Co-trimoxazole, Dalfopristin, Demeclocycline, Dicloxacillin, Dirithromycin,
Doripenem, Doxycycline, Enoxacin, Ertapenem, Erythromycin, Ethambutol,
Flucloxacillin, Fosfomycin, Furazolidone, Fusidic acid, Gatifloxacin, Geldanamycin,
Gentamicin, Glycopeptides, Herbimycin, Imipenem, Isoniazid, Kanamycin, Levofloxacin,
Lincomycin, Linezolid, Lomefloxacin, Loracarbef, Macrolides, Mafenide, Meropenem,
Meticillin, Metronidazole, Mezlocillin, Minocycline, Monobactams, Moxifloxacin,
Mupirocin, Nafcillin, Neomycin, Netilmicin, Nitrofurantoin, Norfloxacin, Ofloxacin,
Oxacillin, Oxytetracycline, Paromomycin, Penicillin, Penicillins, Piperacillin,
Platensimycin, Polymyxin B, Polypeptides, Prontosil, Pyrazinamide, Quinolones,
Quinupristin, Rifampicin, Rifampin, Roxithromycin, Spectinomycin, Streptomycin,
Sulfacetamide, Sulfamethizole, Sulfanilimide, Sulfasalazine, Sulfisoxazole, Sulfonamides,
Teicoplanin, Telithromycin, Tetracycline, Tetracyclines, Ticarcillin, Tinidazole,
Tobramycin, Trimethoprim, Trimethoprim-Sulfamethoxazole, Troleandomycin,
Trovafloxacin, and Vancomycin.
Active agents also include Aldosterone, Beclometasone, Betamethasone,
Corticosteroids, Cortisol, Cortisone acetate, Deoxycorticosterone acetate, Dexamethasone,
Fludrocortisone acetate, Glucocorticoids, Hydrocortisone, Methylprednisolone,
Prednisolone, Prednisone, Steroids, and Triamcinolone. Any suitable combination of these
active agents is also contemplated.
A “pharmaceutical excipient” or a “pharmaceutically acceptable excipient” is a
carrier, usually a liquid, in which an active therapeutic agent is formulated. In one
embodiment of the invention, the active therapeutic agent is a humanized antibody
described herein, or one or more fragments thereof. The excipient generally does not
provide any pharmacological activity to the formulation, though it may provide chemical
and/or biological stability, and release characteristics. Exemplary formulations can be
found, for example, in Remington’s Pharmaceutical Sciences, 19th Ed., Grennaro, A., Ed.,
1995 which is incorporated by reference.
As used herein “pharmaceutically acceptable carrier” or “excipient” includes any
and all solvents, dispersion media, coatings, antibacterial and antifungal agents, isotonic
and absorption delaying agents that are physiologically compatible. In one embodiment,
the carrier is suitable for parenteral administration. Alternatively, the carrier can be suitable
for intravenous, intraperitoneal, intramuscular, or sublingual administration.
Pharmaceutically acceptable carriers include sterile aqueous solutions or dispersions and
sterile powders for the extemporaneous preparation of sterile injectable solutions or
dispersions. The use of such media and agents for pharmaceutically active substances is
well known in the art. Except insofar as any conventional media or agent is incompatible
with the active compound, use thereof in the pharmaceutical compositions described is
contemplated. Supplementary active compounds can also be incorporated into the
compositions.
Pharmaceutical compositions typically must be sterile and stable under the
conditions of manufacture and storage. A pharmaceutical composition described may be
present in lyophilized form. The composition can be formulated as a solution,
microemulsion, liposome, or other ordered structure suitable to high drug concentration.
The carrier can be a solvent or dispersion medium containing, for example, water, ethanol,
polyol (for example, glycerol, propylene glycol, and liquid polyethylene glycol), and
suitable mixtures thereof. Further described is the inclusion of a stabilizer in the
pharmaceutical composition. The proper fluidity can be maintained, for example, by the
maintenance of the required particle size in the case of dispersion and by the use of
surfactants.
In many cases, it will be preferable to include isotonic agents, for example,
sugars, polyalcohols such as mannitol, sorbitol, or sodium chloride in the composition.
Prolonged absorption of the injectable compositions can be brought about by including in
the composition an agent which delays absorption, for example, monostearate salts and
gelatin. Moreover, the alkaline polypeptide can be formulated in a time release
formulation, for example in a composition which includes a slow release polymer. The
active compounds can be prepared with carriers that will protect the compound against
rapid release, such as a controlled release formulation, including implants and
microencapsulated delivery systems. Biodegradable, biocompatible polymers can be used,
such as ethylene vinyl acetate, polyanhydrides, polyglycolic acid, collagen,
polyorthoesters, polylactic acid and polylactic, polyglycolic copolymers (PLG). Many
methods for the preparation of such formulations are known to those skilled in the art.
For each of the recited embodiments, the compounds can be administered by a
variety of dosage forms. Any biologically-acceptable dosage form known to persons of
ordinary skill in the art, and combinations thereof, are contemplated. Examples of such
dosage forms include, without limitation, reconstitutable powders, elixirs, liquids,
solutions, suspensions, emulsions, powders, granules, particles, microparticles, dispersible
granules, cachets, inhalants, aerosol inhalants, patches, particle inhalants, implants, depot
implants, injectables (including subcutaneous, intramuscular, intravenous, and
intradermal), infusions, and combinations thereof.
The above description of various illustrated embodiments of the invention is not
intended to be exhaustive or to limit the invention to the precise form disclosed. While
specific embodiments of, and examples for, the invention are described herein for
illustrative purposes, various equivalent modifications are possible within the scope of the
invention, as those skilled in the relevant art will recognize. The teachings provided herein
of the invention can be applied to other purposes, other than the examples described above.
These and other changes can be made to the invention in light of the above
detailed description. In general, in the following claims, the terms used should not be
construed to limit the invention to the specific embodiments disclosed in the specification
and the claims. Accordingly, the invention is not limited by the disclosure, but instead the
scope of the invention is to be determined entirely by the following claims.
The invention may be practiced in ways other than those particularly described
in the foregoing description and examples. Numerous modifications and variations of the
invention are possible in light of the above teachings and, therefore, are within the scope of
the appended claims.
Certain teachings related to methods for obtaining a clonal population of
antigen-specific B cells were disclosed in U.S. Provisional patent application no.
60/801,412, filed May 19, 2006, the disclosure of which is herein incorporated by reference
in its entirety.
Certain teachings related to humanization of rabbit-derived monoclonal
antibodies and preferred sequence modifications to maintain antigen binding affinity were
disclosed in International Application No. , corresponding to
International Publication No. WO/2008/144757, entitled “Novel Rabbit Antibody
Humanization Methods and Humanized Rabbit Antibodies”, filed May 21, 2008, the
disclosure of which is herein incorporated by reference in its entirety.
Certain teachings related to producing antibodies or fragments thereof using
mating competent yeast and corresponding methods were disclosed in U.S. Patent
application no. 11/429,053, filed May 8, 2006, (U.S. Patent Application Publication No.
US2006/0270045), the disclosure of which is herein incorporated by reference in its
entirety.
Certain CGRP antibody polynucleotides and polypeptides are disclosed in the
sequence listing accompanying this patent application filing, and the disclosure of said
sequence listing is herein incorporated by reference in its entirety.
The entire disclosure of each document cited (including patents, patent
applications, journal articles, abstracts, manuals, books, or other disclosures) in the
Background of the Invention, Detailed Description, and Examples is herein incorporated by
reference in their entireties.
The following examples are put forth so as to provide those of ordinary skill in
the art with a complete disclosure and description of how to make and use the subject
invention, and are not intended to limit the scope of what is regarded as the invention.
Efforts have been made to ensure accuracy with respect to the numbers used (e.g. amounts,
temperature, concentrations, etc.) but some experimental errors and deviations should be
allowed for. Unless otherwise indicated, parts are parts by weight, molecular weight is
average molecular weight, temperature is in degrees centigrade; and pressure is at or near
atmospheric.
EXAMPLES
Example 1 Preparation of Antibodies that Bind CGRP
By using the antibody selection protocol described herein, one can generate an
extensive panel of antibodies.
Immunization Strategy
Rabbits were immunized with human CGRP α (American Peptides, Sunnyvale
CA and Bachem, Torrance CA). Immunization consisted of a first subcutaneous (sc)
injection of 100 μg of antigen mixed with 100 μg of KLH in complete Freund’s adjuvant
(CFA) (Sigma) followed by two boosts, two weeks apart each containing 50 μg antigen
mixed with 50 μg in incomplete Freund’s adjuvant (IFA) (Sigma). Animals were bled on
day 55, and serum titers were determined by ELISA (antigen recognition) and by inhibition
of CGRP driven cAMP increase in SK-N-MC.
Antibody Selection Titer Assessment
To identify and characterize antibodies that bind to human CGRP α, antibody-
containing solutions were tested by ELISA. Briefly, neutravidin coated plates (Thermo
Scientific), were coated with N-term biotinylated human CGRP α (50µL per well, 1µg/mL)
diluted in ELISA buffer (0.5% fish skin gelatin in PBS pH 7.4,) either for approximately
1hr at room temperature or alternatively overnight at 4°C. The plates were then further
blocked with ELISA buffer for one hour at room temperature and washed using wash
buffer (PBS,0.05% tween 20). Serum samples tested were serially diluted using ELISA
buffer. Fifty microliters of diluted serum samples were transferred onto the wells and
incubated for one hour at room temperature for one hour. After this incubation, the plate
was washed with wash buffer. For development, an anti-rabbit specific Fc-HRP (1:5000
dilution in ELISA buffer) was added onto the wells and incubated for 45 min at RT. After
a 3x wash step with wash solution, the plate was developed using TMB substrate for two
minutes at room temperature and the reaction was quenched using 0.5M HCl. The well
absorbance was read at 450 nm.
Titer determination of serum samples by functional activity (Inhibition of CGRP driven
cAMP levels)
To identify and characterize antibodies with functional activity, an inhibition of
CGRP driven increase of cAMP levels assay was done using electrochemiluminescence
(Meso Scale Discovery, MSD). Briefly, antibody preparations to be tested were serially
diluted in MSD assay buffer (Hepes, MgCl2, pH 7.3, 1mg/mL blocker A, Meso Scale
Discovery) in a 96 well round bottom polystyrene plate (Costar). To this plate, human
CGRP α was added (10ng/mL final concentration) diluted in MSD assay buffer and
incubated for one hour at 37C. Appropriate controls were used as suggested by the assay-
kit manufacturer. Human neuroepithelioma cells (SK-N-MC, ATCC) were detached using
an EDTA solution (5mM in PBS) and washed using growth media (MEM, 10% FBS,
antibiotics) by centrifugation. The cell number was adjusted to 2 million cells per mL in
assay buffer, and IBMX (3-Isobutyl-1Methylxanthine, Sigma) was added to a final
concentration of 0.2mM right before loading cells onto cAMP assay plate. After the
antibody human CGRP α solution was incubated for one hour 20 microliters of solution
containing cells were transferred to the cAMP assay plate. All tested samples were run in
duplicates with appropriate controls. Ten microliters of cells were added to the wells and
the plate was incubated for 30 minutes with shaking at room temperature. While cells were
being incubated with the CGRP solution, the stop solution was prepared by making a 1:200
solution of TAG labeled cAMP (MSD) in lysis buffer (MSD). To stop the cells-CGRP
incubation, 20 microliters of stop solution was added to the cells and the plate was
incubated for one hour with shaking at room temperature. The read buffer (MSD) was
diluted four times with water and 100 microliters were added to all wells on the plate. The
plate was then read using a Sector Imager 2400 (MSD) and the Prism software was used
for data fit and IC50 determination.
Tissue Harvesting
Once acceptable titers were established, the rabbit(s) were sacrificed. Spleen,
lymph nodes, and whole blood were harvested and processed as follows:
Spleen and lymph nodes were processed into a single cell suspension by
disassociating the tissue and pushing through sterile wire mesh at 70 μm (Fisher) with a
plunger of a 20 cc syringe. Cells were collected in PBS. Cells were washed twice by
centrifugation. After the last wash, cell density was determined by trypan blue. Cells were
centrifuged at 1500 rpm for 10 minutes; the supernatant was discarded. Cells were
resuspended in the appropriate volume of 10% dimethyl sulfoxide (DMSO, Sigma) in FBS
(Hyclone) and dispensed at 1 ml/vial. Vials were stored at -70°C in a slow freezing
chamber for 24 hours and stored in liquid nitrogen.
Peripheral blood mononuclear cells (PBMCs) were isolated by mixing whole
blood with equal parts of the low glucose medium described above without FBS. 35 ml of
the whole blood mixture was carefully layered onto 8 ml of Lympholyte Rabbit
(Cedarlane) into a 45 ml conical tube (Corning) and centrifuged 30 minutes at 2500 rpm at
room temperature without brakes. After centrifugation, the PBMC layers were carefully
removed using a glass Pasteur pipette (VWR), combined, and placed into a clean 50 ml
vial. Cells were washed twice with the modified medium described above by
centrifugation at 1500 rpm for 10 minutes at room temperature, and cell density was
determined by trypan blue staining. After the last wash, cells were resuspended in an
appropriate volume of 10% DMSO/FBS medium and frozen as described above.
B cell selection, enrichment and culture conditions
On the day of setting up B cell culture, PBMC, splenocyte, or lymph node vials
were thawed for use. Vials were removed from LN2 tank and placed in a 37°C water bath
until thawed. Contents of vials were transferred into 15 ml conical centrifuge tube
(Corning) and 10 ml of modified RPMI described above was slowly added to the tube.
Cells were centrifuged for 5 minutes at 2K RPM, and the supernatant was discarded. Cells
were resuspended in 10 ml of fresh media. Cell density and viability was determined by
trypan blue.
a) The following protocol was used for Ab1 and Ab13
Cells were pre-mixed with the biotinylated human CGRP α as follows. Cells
were washed again and resuspended at 1E07 cells/80 μL medium. Biotinylated human
CGRP was added to the cell suspension at the final concentration of 5 ug/mL and
incubated for 30 minutes at 4°C. Unbound biotinylated human CGRPa was removed
performing two 10 ml washes using PBF [Ca/Mg free PBS (Hyclone), 2 mM
ethylenediamine tetraacetic acid (EDTA), 0.5% bovine serum albumin (BSA) (Sigma-
biotin free)]. After the second wash, cells were resuspended at 1E07 cells/80 μl PBF and
μl of MACS® streptavidin beads (Miltenyi Biotech, Auburn CA) per 10E7 cells were
added to the cell suspension. Cells and beads were incubated at 4°C for 15 minutes and
washed once with 2 ml of PBF per 10E7 cells.
b) The following protocol was used for Ab4, Ab7, Ab9 and Ab11:
Biotinylated human CGRPa was pre-loaded onto the streptavidin beads as
follows. Seventy five microliters of streptavidin beads (Milteny Biotec, Auburn CA) were
mixed with N-terminally biotinylated huCGRPa (10ug/ml final concentration) and 300 ul
PBF. This mixture was incubated at 4°C for 30 min and unbound biotinylated human
CGRPa was removed using a MACS® separation column (Miltenyi Biotec, with a 1ml
rinse to remove unbound material. Then material was plunged out, then used to resuspend
cells from above in 100ul per 1E7 cells, the mixture was then incubated at 4°C for 30min
and washed once with 10 ml of PBF.
For both a) and b) protocols the following applied: After washing, the cells were
resuspended in 500 μl of PBF and set aside. A MACS® MS column (Miltenyi Biotec,
Auburn CA) was pre-rinsed with 500 ml of PBF on a magnetic stand (Milteni). Cell
suspension was applied to the column through a pre-filter, and unbound fraction was
collected. The column was washed with 2.5 ml of PBF buffer. The column was removed
from the magnet stand and placed onto a clean, sterile 1.5 ml eppendorf tube. 1 ml of PBF
buffer was added to the top of the column, and positive selected cells were collected. The
yield and viability of positive cell fraction was determined by trypan blue staining. Positive
selection yielded an average of 1% of the starting cell concentration.
A pilot cell screen was established to provide information on seeding levels for
the culture. Plates were seeded at 10, 25, 50, 100, or 200 enriched B cells/well. In
addition, each well contained 50K cells/well of irradiated EL-4.B5 cells (5,000 Rads) and
an appropriate level of activated rabbit T cell supernatant (See U.S. Patent Application
Publication No. 20070269868)(ranging from 1-5% depending on preparation) in high
glucose modified RPMI medium at a final volume of 250 μl/well. Cultures were incubated
for 5 to 7 days at 37°C in 4% CO2.
B-Cell culture screening by antigen-recognition (ELISA)
To identify wells producing anti-human CGRPa antibodies, the same protocol as
described for titer determination of serum samples by antigen-recognition (ELISA) was
used with the following changes. Briefly, neutravidin coated plates were coated with a
mixture of both N- and C- terminally biotinylated human CGRPa (50 μL per well, 1 μg/mL
each). B-cell supernatant samples (50 μL) were tested without prior dilution.
Identification of functional activity in B-cell supernatants using CGRP driven cAMP
production
To determine functional activity contained in B-cell supernatants, a similar
procedure to that described for the determination of functional titer of serum samples was
used with the following modifications. Briefly, B-cell supernatant (20 μL) were used in
place of the diluted polyclonal serum samples.
Isolation of antigen-specific B-cells
Plates containing wells of interest were removed from -70 °C, and the cells from
each well were recovered using five washes of 200 microliters of medium (10% RPMI
complete, 55 μM BME) per well. The recovered cells were pelleted by centrifugation and
the supernatant was carefully removed. Pelleted cells were resuspended in 100 μl of
medium. To identify antibody expressing cells, streptavidin coated magnetic beads (M280
dynabeads, Invitrogen) were coated with a combination of both N- and C- terminal
biotinylated human CGRPa . Individual biotinylated human CGRPa lots were optimized
by serial dilution. One hundred microliters containing approximately 4x10E7 coated beads
were then mixed with the resuspended cells. To this mixture 15 microliters of goat anti-
rabbit H&L IgG-FITC (Jackson Immunoresearch) diluted 1:100 in medium were added.
Twenty microliters of cell/beads/anti-rabbit H&L suspension were removed and
microliter droplets were dispensed on a one-well glass slide previously treated with
Sigmacote (Sigma) totaling 35 to 40 droplets per slide. An impermeable barrier of paraffin
oil (JT Baker) was used to submerge the droplets, and the slide was incubated for 90
minutes at 37°C in a 4% CO2 incubator in the dark.
Specific B cells that produce antibody can be identified by the fluorescent ring
around produced by the antibody secretion, recognition of the bead-associated biotinylated
antigen, and subsequent detection by the fluorescent-IgG detection reagent. Once a cell of
interest was identified it was recovered via a micromanipulator (Eppendorf). The single
cell synthesizing and exporting the antibody was transferred into a microcentrifuge tube,
frozen using dry ice and stored at -70°C.
Amplification and sequence determination of Antibody Sequences From Antigen-Specific
B Cells
Antibody sequences were recovered using a combined RT-PCR based method
from a single isolated B-cell. Primers containing restriction enzymes were designed to
anneal in conserved and constant regions of the target immunoglobulin genes (heavy and
light), such as rabbit immunoglobulin sequences, and a two-step nested PCR recovery was
used to amplify the antibody sequence. Amplicons from each well were analyzed for
recovery and size integrity. The resulting fragments are then digested with AluI to
fingerprint the sequence clonality. Identical sequences displayed a common fragmentation
pattern in their electrophoretic analysis. The original heavy and light chain amplicon
fragments were then digested using the restriction enzyme sites contained within the PCR
primers and cloned into an expression vector. Vector containing subcloned DNA
fragments were amplified and purified. Sequence of the subcloned heavy and light chains
were verified prior to expression.
Recombinant Production of Monoclonal Antibody of Desired Antigen Specificity and/or
Functional Properties
To determine antigen specificity and functional properties of recovered
antibodies from specific B-cells, vectors driving the expression of the desired paired heavy
and light chain sequences were transfected into HEK-293 cells.
Antigen-recognition of recombinant antibodies by ELISA
To characterize recombinant expressed antibodies for their ability to bind to
human-CGRPa antibody-containing solutions were tested by ELISA. All incubations
were done at room temperature. Briefly, Immulon IV plagtes (Thermo Scientific), were
coated with a CGRPa containing solution (1ut/mL in PBS) for 2 hours. CGRPa-coated
plates were then washed three times in wash buffer (PBS, 0.05% Tween-20). The plates
were then blocked using a blocking solution (PBS, 0.5% fish skin gelatin, 0.05% Tween-
) for approximately one hour. The blocking solution was then removed and the plates
were then incubated with a dilution series of the antibody being tested for approximately
one hour. At the end of this incubation, the plate was washed three times with wash buffer
and further incubated with a secondary antibody containing solution (Peroxidase
conjugated affinipure F(ab’)2 fragment goat anti-human IgG, Fc fragment specific
(Jackson Immunoresearch) for approximately 45 minutes and washed three times. At that
point a substrate solution (TMB peroxidase substrate, BioFx) and incubated for 3 to 5
minutes in the dark. The reaction was stopped by addition of a HCl containing solution
(0.5M) and the plate was read at 450 nm in a plate-reader.
Results: Figures 15-18 demonstrate that anti-CGRP antibodies Ab1-Ab14 bind
to and recognize CGRPa.
Functional characterization of recombinant antibodies by modulation of CGRP driven
intracellular cAMP levels and cross reactivity to rats
To characterize recombinant expressed antibody for their ability to inhibit
CGRPa mediated increased cellular levels of cAMP assay, an electrochemiluminescence
assay-kit (Meso Scale Discovery, MSD) was used. Briefly, antibody preparations to be
tested were serially diluted in MSD assay buffer (Hepes, MgCl2, pH 7.3, 1mg/mL blocker
A ,Meso Scale Discovery) in a 96 well round bottom polystyrene plate (Costar). To this
plate, human CGRPa was added (25ng/mL final concentration) diluted in MSD assay
buffer and incubated for one hour at 37°C. Appropriate controls were used as suggested by
the assay-kit manufacturer. Human neuroepithelioma cells (SK-N-MC, ATCC) were
detached using an EDTA solution (5mM) and washed using growth media (MEM, 10%
FBS, antibiotics) by centrifugation. The cell number was adjusted to 2 million cells per
mL in assay buffer, and IBMX (3-Isobutyl-1Methylxanthine, 50mM Sigma) was added to a
final concentration of 0.2mM right before loading cells onto cAMP assay plate. The
antibody human CGRPa solution was incubated for one hour after which 20 microliters of
solution containing cells were transferred to the cAMP assay plate. All tested samples
were run in duplicates with appropriate controls. Ten microliters of cells were added to the
wells and the plate was incubated for 30 minutes with shaking. While cells were being
incubated with the CGRP solution, the stop solution was prepared by making a 1:200
solution of TAG labeled cAMP (MSD) in lysis buffer (MSD). To stop the cells-CGRP
incubation, 20 microliters of stop solution was added to the cells and the plate was
incubated for one hour with shaking. The read buffer (MSD) was diluted four times with
water and 100 microliters were added to all wells on the plate. The plate was then read
using a Sector Imager 2400 (MSD) and the Prism software was used for data fit and IC50
determination.
To test for the ability of recombinant antibodies to antagonize human CGRPb a
similar assay was performed with the substitution of the CGRP agonist (CGRPb 10ng/mL
final concentration). Evaluation of the recombinant antibodies to recognize and inhibit rat
CGRP-mediated cAMP generation was conducted using rat CGRP (5ng/mL final
concentration) and the rat L6 cell line (ATCC).
Results: Figures 19-37 demonstrate that anti-CGRP antibodies Ab1-Ab14
inhibit CGRPa, CGRPb, and rat CGRP mediated increased cellular levels of cAMP.
Example 2: Enzymatic Production of Fab Fragments
Papain digestions were conducted using immobilized papain (Thermo/Pierce) as
per manufacturer’s instructions. Briefly, purified antibodies were incubated in a
cystein/HCl-containing buffer with immobilized papain at 37°C with gentle rocking. The
digestion was monitored by taking an aliquot and analyzing using SDS-PAGE for cleavage
of the heavy chain. To stop the reaction, the immobilized papain was spun out and washed
using 50 mM Tris pH 7.5 and filtered. Undigested full length antibody and Fc fragments
were removed by using a MabSelectSure (GE) column.
Example 3 Yeast Cell Expression
Construction of Pichia pastoris expression vectors for heavy and light chain.
The humanized light and heavy chain fragments were commercially synthesized
and subcloned into a pGAP expression vector. The pGAP expression vector uses the GAP
promoter to drive expression of the immunoglobulin chain and the human serum albumin
(HSA) leader sequence for export. In addition, this vector contains common elements such
as a bacterial origin of replication, and a copy of the kanamycin resistance gene which
confers resistance to the antibiotic G418 in P. pastoris. G418 provides a means of selection
for strains that contain the desired expression vector integrated into their genome.
Transformation of expression vectors into haploid met1 and lys3 host strains of Pichia
pastoris
All methods used for transformation of haploid P. pastoris strains and
manipulation of the P. pastoris sexual cycle were done as described in Pichia Protocols
(Methods in Molecular Biology Higgings, DR, and Cregg, JM, Eds. 1998. Humana Press,
Totowa, NJ). Prior to transformation each vector was linearized within the GAP promoter
sequences to direct the integration of the vector into the GAP promoter locus of the P.
pastoris genome. Haploid strains were transfected using electroporation and successful
transformants were selected on YPDS (yeast extract, peptone dextrose with sorbitol) G418
agar plates. Copy numbers of heavy and light chain genes were determined for haploid
strains by Southern blot analysis. Haploid strains were then mated and selected for their
ability to grow in the absence of the amino acid markers (i.e., Lys and Met). Resulting
diploid clones were then subjected to a final Southern blot to confirm copy numbers of
heavy and light chain genes. A clone expressing the antibody of interest was selected using
biolayer interferometry Protein-A biosensors to monitor expression (Octet, ForteBio).
Example 4 Expression of Ab3, Ab6 and Ab14 in Pichia pastoris
Three Pichia strains for expression of full-length antibody were made. For all
the full length antibody expressing strains, haploids strains were created and subsequently
mated. One haploid strain expressed full-length light chain sequence and another haploid
strain expressed the full-length heavy chain sequence. Each diploid strain was used to
generate a research cell bank and used for expression in a bioreactor.
First an inoculum was expanded using the research cell bank using medium
comprised of the following nutrients (%w/v): yeast extract 3%, anhydrous dextrose 4%,
YNB 1.34%, Biotin 0.004% and 100 mM potassium phosphate. To generate the inoculum
for the fermenters, the cell bank was expanded for approximately 24 hours in a shaking
incubator at 30ºC and 300 rpm. A 10% inoculum was then added to Labfors 2.5L working
volume vessels containing 1 L sterile growth medium. The growth medium was comprised
of the following nutrients: potassium sulfate 18.2 g/L, ammonium phosphate monobasic
36.4 g/L, potassium phosphate dibasic 12.8 g/L, magnesium sulfate heptahydrate 3.72 g/L,
sodium citrate dihydrate 10 g/L, glycerol 40 g/L, yeast extract 30 g/L, PTM1 trace metals
4.35 mL/L, and antifoam 204 1.67 mL/L. The PTM1 trace metal solution was comprised
of the following components: cupric sulfate pentahydrate 6 g/L, sodium iodide 0.08 g/L,
manganese sulfate hydrate 3 g/L, sodium molybdate dihyrate 0.2 g/L, boric acid 0.02 g/L,
cobalt chloride 0.5 g/L, zinc chloride 20 g/L, ferrous sulfate heptahydrate 65 g/L, biotin 0.2
g/L, and sulfuric acid 5 mL/L.
The bioreactor process control parameters were set as follows: Agitation 1000
rpm, airflow 1.35 standard liter per minute, temperature 28ºC and pH was controlled at six
using ammonium hydroxide. No oxygen supplementation was provided.
Fermentation cultures were grown for approximately 12 to 16 hours until the
initial glycerol was consumed as denoted by a dissolved oxygen spike. The cultures were
starved for approximately three hours after the dissolved oxygen spike. After this
starvation period, a bolus addition of ethanol was added to the reactor to reach 1% ethanol
(w/v). The fermentation cultures were allowed to equilibrate for 15 to 30 minutes. Feed
addition was initiated 30 minutes post-ethanol bolus and set at a constant rate of 1 mL/min
for 40 minutes, then the feed pump was controlled by an ethanol sensor keeping the
concentration of ethanol at 1% for the remainder of the run using an ethanol sensing probe
(Raven Biotech). The feed was comprised of the following components: yeast extract 50
g/L, dextrose 500 g/L, magnesium sulfate heptahydrate 3 g/L, and PTM1 trace metals 12
mL/L. For fermentation of the full length Ab6 and Ab14, sodium citrate dihydrate (0.5g/L)
was also added to the feed. The total fermentation time was approximately 90 hours.
Example 5 Methods of Humanizing Antibodies
Methods of humanizing antibodies have been described previously in issued
U.S. Patent No. 7935340, the disclosure of which is incorporated herein by reference in its
entirety. In some instances, a determination of whether additional rabbit framework
residues are required to maintain activity is necessary. In some instances the humanized
antibodies still requires some critical rabbit framework residues to be retained to minimize
loss of affinity or activity. In these cases, it is necessary to change single or multiple
framework amino acids from human germline sequences back to the original rabbit amino
acids in order to have desired activity. These changes are determined experimentally to
identify which rabbit residues are necessary to preserve affinity and activity. This is now
the end of the variable heavy and light chain humanized amino acid sequence.
Example 6 Inhibition of CGRP Binding to its Cellular Receptor
To characterize recombinantly expressed antibodies for their ability to inhibit
CGRP binding to its cellular receptor, a radioligand-binding assay was performed as
previously described [Elshourbagy et al, Endocrinology 139:1678 (1998); Zimmerman et
al, Peptides, 16:421 (1995)]. Membrane preparations of recombinant human CGRP
receptors, calcitonin receptor-like receptor and RAMP1 (Chemiscreen, Millipore) were
used. Antibody dilutions were preincubated with 125I radiolabeled human CGRPa
(0.03nM) for 30 minutes at room temperature. Non-specific binding was estimated in the
presence of 0.1uM human CGRPa. Membranes were filtered and washed. The filters
were then counted to determine 125I radiolabeled human CGRPa specifically bound.
Results: Figure 38 demonstrates that anti-CGRP antibodies Ab1-Ab13 inhibit CGRP
binding to its cellular receptor.
Example 7 Inhibition of Neurogenic Vasodilation by Anti-CGRP Antibodies in Rats
CGRP is a potent vasodilator (Nature 313: 54-56 (1985) and Br J. Clin.
Pharmacol. 26(6):691-5. (1988)). A pharmacodynamic assay to measure CGRP receptor
antagonist activity non-invasively was used to characterize anti-CGRP antibodies. The
model relied on changes in dermal blood flow measured using a laser Doppler imaging
following the topical application of a capsaicin solution. Capsaicin activates the transient
receptor potential vanilloid type 1 receptor (TRPV-1), producing neurogenic inflammation
and vasodilatation via the local release of vasoactive mediators including CGRP and
substance P (Br. J. Pharmacol. 110: 772-776 (1993)).
On the day prior to the vasodilatation assay, animals were dosed with the test
agent or control via IP (intraperitoneal). Following dosing, the animals were shaved and
depilated in the lower back region of their dorsal side, in an area approximately 2x6cm.
The animals were then returned to their cages overnight. On the day of test, approximately
24 hours post dosing, animals were anesthetized with isoflurane gas and placed on a
temperature controlled heating pad and fitted with a nose cone for continuous delivery of
isoflurane. A laser doppler imager was used for the observation of vasodilatation. A beam
of coherent red light generated by a 633 nm helium-neon laser was directed to the shaved
area, a rectangle (2x6 cm), and scanned at a medium resolution mode. A baseline Doppler
scan was obtained first and the location of O-ring placement predetermined by identifying
two similar low flux areas. Two rubber Orings (~1cm in diameter) were placed in the
selected regions and a baseline scan was performed. Immediately after completion of the
scan, 1mg of capsaicin in 5 μL of an ethanol:acetone solution (1:1) was applied within each
of the two O-rings Doppler scans were repeated at 2.5, 5, 7.5, 10, 12.5, 15, 17.5, 20, 22.5,
, 27.5 and 30 minutes after the application of capsaicin. Percent change from baseline
mean Flux within each of the two O-rings, was plotted as the results of vasodilatation due
to capsaicin.
In order to test recombinantly expressed antibodies for their ability to inhibit
CGRP binding to its cellular receptor, a radioligand-binding assay was performed as
previously described.
Results: Figures 39 and 40 demonstrates that anti-CGRP antibodies Ab3 and
Ab6 reduced vasodilation in this model following capsaicin administration.
Example 8 Use of Anti-CGRP Antibodies to Block CGRP Induced Diarrhea in Two
Strains of Mice (Nestin/ human RAMP1 Transgenic Mice and C57BL/6J Mice)
The initial discovery that CGRP antibodies can be used to prevent or treat CGRP
induced diarrhea was based on studies on the effect of CGRP antibodies on CGRP induced
photophobia or photoaversion. This was effected as one of the hallmarks of migraines is
photophobia, or increased sensitivity to light [Mulleners et al, Headache 41: 31-39 (2001);
Recober et al, J. Neuroscience 29:8798:8804 (2009)]. It is also known that migraineurs,
but not non-migraineurs, are sensitive to CGRP-induced headache [reviewed in Neurology
22:241-246 (2009)]. CGRP binds to a G protein coupled receptor called CLR (calcitonin
like receptor) that works concomitantly with the receptor activity modifying protein 1
(RAMP1) in mediating CGRP binding and signaling. In vitro, the activity of CGRP is
strongly enhanced by overexpression of the RAMP1 subunit of the CGRP receptor [(J.
Neurosci. 27:2693-2703 (2007)]. To study light aversion behavior in mice, a nestin/human-
RAMP1 transgenic mouse model was developed [Recober et al, J. Neuroscience 29: 8798-
8804 (2009); Russo et al, Mol. Cell. Pharmacol., 1:264-270 (2009)]. These mice when
exposed to CGRP present symptoms associated with migraines in particular light aversion
(ibid). This protocol is detailed below.
LIGHT AVERSION PROTOCOL
To test the ability of anti-CGRP antibodies to block CGRP-induced
photophobia, mice are housed under standard conditions in groups of 2-5 per cage with a
12 hour light cycle (lights on at 0500 CST)/0600 CDT and off at 1700 CST/1800 CDT) and
access to water and food ad libitum. The mice used in the studies are comprised in mice
colonies of genotype Nestin/hRAMP1 that contain two transgene alleles Tg(Nes-cre)1Kln/J
and Tg(RAMP1) alleles (B6;SJL-Tg(Nes-cre)1Kln Tg(RAMP1). Nes-cre was introduced
in these mice by an intercross involving mice obtained from The Jackson Laboratory (stock
003771) on a B6 genetic background.
The control mice used in the protocol are littermates that are either non-
transgenic, or single transgenic (not expressing hRAMP1) containing either transgene:
nestin- cre or Cx1-GFP-hRAMP1. The stock colony is maintained by backcrossing CX1-
GFP-hRAMP1 mice with non-transgenic littermates in the barrier facility. For behavior
studies, the colony is maintained by crossing CX1-GFP-hRAMP1 single transgenic with
nestin-cre mice in non-barrier facilities. All of these mice are cared for by animal care and
procedures approved by the University of Iowa Animal Care and Use Committee and
further are performed in accordance with the standard set by the National Institutes of
Health.
The materials and equipment used in this protocol include a Light/Dark Box and
testing chambers comprising a plexiglass open field (27 x 27 x 20.3 cm) containing 16
beam infrared arrays (Med Associates Inc., St. Albans, VT). The light/dark box is divided
in two equally sized zones by a dark insert that is opaque to visible light. There is a
opening (5.2 x 6.8 cm) in the dark insert that allows the mouse to freely move between the
two zones. This testing chamber is placed inside a sound-attenuating cubicle (56 x 38 x 36
cm) with a fan for ventilation (Med Associates Inc.). There are six chambers for the overall
system that integrates with a computer containing software for recording and data
collection (Med Associates Inc.).
The software used to monitor results are Activity Monitor v 6.02 (Med
Associates Inc.). The software settings used for recording comprise: Resolution (ms): 50,
Box Size: 3, Resting Delay (ms): 500, Ambulatory Trigger: 3, Session Type: C, Session
Time (min): 20, Block Interval (sec): 300, and Compressed File: DEFAULT.ZIP.
In the protocol the light source for each chamber is an LED panel which is was
installed to the ceiling of the sound-attenuating cubicle. The LED panel contains 36
collimated - 1 watt LED bulbs (5500k Daylight White) (LEDwholesalers, Burlingame,
CA). To control light intensity, each LED panel is connected to a dimmable LED driver
(LINEARdrive; eldoLED America Inc., San Jose, CA) leading to a potential range of light
intensity from ~300 to 27,000 lux. The standard light intensity is ~1000-1200 lux unless
otherwise stated.
The injectors used are hand-made by inserting a stripped 30 gauge x ½” needle
into non-radiopaque polyethylene tubing (inner diameter .38 mm; outer diameter 1.09 mm).
Using the tubing described above, a stopper (~1cm in length) is placed over the needle
leaving approximately 2.5 mm of the bevel uncovered. These injectors are connected to a
µL Hamilton syringe.
The mice are injected ICV with rat α-CGRP (Sigma) diluted in Dulbecco
phosphate-buffered saline (D-PBS) (Hyclone). The total dose delivery is 0.5 nmol. For
example, 250 or 500 µg CGRP is diluted in 250 or 500 µL sterile PBS for a final
concentration of 1 µg/µL. The CGRP is stored at-20°C and aliquots are freeze-thawed at
most one time. The PBS is stored at 4°C.
The mice are administered an exemplary anti-CGRP antibody disclosed herein
(Ab3) which is stored at 4°C prior to administration. In this protocol prior to the
administration of the antibody i.e., approximately 24 hours prior to testing, the mice are
weighed and then receive a systemic (intraperitoneal (ip)) injection of either: vehicle,
control antibody (anti-digoxin antibody), or CGRP-binding antibody at a dosage of 30
mg/kg. The mice are also screened to detect any abnormal physical conditions that could
affect the assay such as a missing eye, cataracts, or other abnormalities such as grooming,
etc. The day after antibody administration, mice are transported in cages from animal
housing on a cart and then the mice are placed in the behavior room for acclimation at least
1 hour prior to any injection or testing. Any coverings required for transport are removed
from the cages and normal light conditions (standard overhead fluorescent lighting) are
turned on during acclimation and remain on for the remainder of the procedure. In addition,
all equipment that produces sound including anesthetic devices, light/dark chambers, and
LED panels are turned on during acclimation and remain until testing is complete.
Typically there is minimal human presence in the room during acclimation.
After acclimation each mouse is placed in an induction chamber and
administered 3.5% isoflurane. After the mouse is anesthetized, it is transferred to a nose
cone maintaining 3.5% isoflurane administration, so that it remains anesthetized during
injection. Thereafter drug administration is effected using the injector by direct injection
into the right lateral ventricle through the intact scalp aiming at 1 mm posterior to bregma
and 1 mm right from the midline.
Typically for consistency all the injections are performed by the same person
after a period of training yielding a success rate of >90% as demonstrated by injections of
dye into the ventricles. The drugs injected are either 2.0 µL vehicle (D-PBS) µL or 2.0 µg
CGRP in 2.0 µL vehicle (1 µg/µL) administered as a direct intracerebroventricular
injection into the right lateral ventricle of the brain through the intact scalp aiming at 1 mm
posterior to bregma and 1 mm right from the midline as described before [Recober et al, J.
Neuroscience 29: 8798-8804 (2009)] After all 2.0 µL is delivered, the needle remains in
place for 10 sec and then removed. The time of injection is then recorded.
After injection the mice are allowed to recover for 30 minutes prior to testing in
an empty, uncovered cage containing a paper towel for bedding. During recovery, the
following is recorded: diarrhea, excessive urination, bleeding post-injection, abnormal
behavior such as lack of movement, seizures, etc. Based on these observations it is
determined whether the administration of the anti-CGRP antibody has an effect
(preventative or palliative) on CGRP-induced diarrhea in the transgenic mice which are
administered antibody and later administered CGRP ICV relative to the transgenic mice
which are only administered CGRP and the control (vehicle or control antibody in vehicle).
Antibodies which inhibit CGRP induced diarrhea in this protocol are identified as being
potentially useful in treating or preventing acute or chronic diarrhea, particularly diarrhea
that is associated with elevated CGRP levels.
After a 30 minute recovery the light protocol testing is effected. Each mouse is
placed along the back wall (furthest from the opening between the two zones) in the light
zone approximately in the center. This triggers the recording to begin. Up to six mice are
tested at one time (one mouse per chamber). During testing the shelf with the chamber is
pushed back into the cabinet and the doors closed. The software records mouse movement
for 20 minutes. After the recording is completed, each mouse is removed and placed back
in home cage for transport back to animal housing.
Results
Using this protocol an anti-CGRP antibody developed by Alder
Biopharmaceuticals identified as Ab3 herein was demonstrated to result in the transgenic
mice spending a statistically significant amount of time in the light. (These results are not
shown as they relate to a different invention which is disclosed in U.S. Provisional
Application No. 61/496,860 (Atty. Docket No. 67858.760000) filed June 14, 2011 and
(Attorney Docket No. 67858.730303) filed on even date as this
application, and which application is incorporated by reference herein).
Of relevance to the present invention it was discovered during these experiments
that the mice which were treated with the same Alder anti-CGRP antibody (Ab3) also did
not exhibit CGRP-associated diarrhea. Whereas CGRP administration elicited diarrhea in
the majority of the transgenic mice used in the photoaversion studies which were not
administered the anti-CGRP antibody, diarrhea was not observed in the same transgenic
mice who received the CGRP administration and which further were administered Ab3
systemically (intraperitoneally).
These results are shown in Figure 41. More specifically, Figure 41 contains the
results of experiments wherein the effects of intracerebroventricular (ICV) injected CGRP
in transgenic Nestin/hRamp1 mice. The data show that ICV injected rat CGRP induced
diarrhea in Nestin/hRAMP1 tg mice and that the intraperitoneal injection of Ab3
(30mgs/kg, ~24 hrs. prior to CGRP challenge) inhibits intra cerebroventricular (ICV)
injected-CGRP induced diarrhea in nestin/hRAMP1 tg mice.
It can be seen from the figure that all of the transgenic Nestin/hRamp1 mice
which did not receive the CGRP (mice administered IP vehicle and ICV vehicle only) did
not develop diarrhea. In these studies the RAMP1 transgenic C57/BL6J mice received rat
CGRP(alpha).
By contrast, the majority of the same transgenic mice which received rat CGRP
administered ICV and which further were administered controls (either the control
antibody in the IP vehicle or a combination of the IP and ICV vehicle) developed diarrhea
(was respectively observed in 90% or about 80% of the mice which received the CGRP and
the antibody or vehicle controls) Most significantly the data in Figure 41 shows that all of
transgenic mice which received the Alder Ab3 antibody and CGRP did not develop
diarrhea.
In addition, experiments were conducted in non-transgenic mice (C57BL/6J
mice). In contrast to the prior studies using the Nestin/hRAMP1 mice, the C57/BL6J strain
were administered human CGRP(a) These experiments resulted in similar results, i.e., the
anti-CGRP antibody prevented CGRP-associated diarrhea in these animals. These results
cumulatively suggest that antibodies which specifically bind CGRP (and likely other
polypeptides that inhibit the CGRP/CGRP receptor interaction) may be used to inhibit
CGRP associated diarrhea in different individuals, and treat different conditions or
treatments involving excess CGRP levels such as those identified herein.
Figures 42-44 contain the results of these similar CGRP experiments effected in
non-transgenic (C57BL/6J mice). These results show that the same anti-CGRP antibody
(Ab3) prevented diarrhea in the C57BL/6J mice which received human CGRP. By contrast
the majority of the C57BL/6J mice which received the human CGRP(a) and the same
controls developed diarrhea.
Specifically, Figure 42 contains the results of experiments which show that the
intra cerebroventricular (ICV) injection of human CGRP (similar to rat CGRP) induces
diarrhea in a dose dependent manner in C57BL/6J mice. The data also shows that about
80% of the C57BL/6J mice administered 2.0 µg of human CGRP via intra
cerebroventricular injection developed diarrhea whereas none of the mice who received the
control or a reduced amount of human CGRP (0.4 µg) developed diarrhea.
Figure 43 contains the results of additional experiments which show that intra
peritoneal injection of Ab3 (30mgs/kg ip, ~24 hrs. prior to CGRP challenge) inhibits ICV
injected-CGRP induced diarrhea in C57/BL6J mice. By contrast the administration of the
control antibody or vehicle had no effect on ICV injected CGRP-induced diarrhea.
Figure 44 contains the results of additional experiments which show that Ab3
(30mgs/kg ip injection ~24 hrs. prior to human CGRP challenge) inhibits IP injected-
CGRP induced diarrhea in C57/BL6J mice. By contrast the administration of the control
antibody contained in the same vehicle as Ab3 had no effect on CGRP-induced diarrhea.
These results obtained in different strains of mice persuasively demonstrate that
the administration of an anti-CGRP antibody or antibody fragment may prevent or
ameliorate diarrhea, especially in conditions which are associated with elevated CGRP
levels. These results further indicate that there is a similar prophylactic effect when the
CGRP is administered by 2 different means (intraperitoneal or intracerebroventricular
injection) and is specific to different species. Accordingly the anti-CGRP antibody is
apparently able to effectively bind the CGRP and prevent its adverse diarrhea effects
irrespective of whether it was delivered systemically or locally via ICV injection.
In addition, the results show that assays in rodents which are administered
CGRP may be used to assess whether a candidate anti-CGRP antibody or another
CGRP/CGRP receptor polypeptide inhibitor may be used to inhibit or treat gastrointestinal
disorders or other conditions characterized by excessive CGRP that involve aberrations in
bowel movements, electrolyte balance and/or fluid excretion, and in particular diarrhea.
These conditions include by way of example inflammatory bowel disease, bacterial or viral
induced diarrhea. functional bowel disorders selected from the group consisting of gastro-
esophageal reflux, dyspepsia, irritable bowel syndrome, functional abdominal pain
syndrome, diverticulosis, and diverticulitis, Crohn's disease, ileitis, collagenous colitis,
lymphocytic colitis, and ulcerative colitis and cancers and cancer treatments associated
with diarrhea, e.g., medullary thyroid carcinoma or colorectal cancer and other conditions
previously identified.
Example 9 Effect of CGRP Antibody Administration on Colonic Evacuation
Experiments were conducted in C57BL/6 mice to assess the potential efficacy of
CGRP antibody administration for the treatment or prevention of diarrhea and related
gastrointestinal disorders. Relative to the experiments using C57BL/6J mice in Example 8,
a higher dosage of CGRP and a lower dosage of antibody was utilized; nonetheless, Ab3
and Ab6 were effective in decreasing the incidence of diarrhea.
Methods
Male C57BL/6 mice (Harlan Laboratories) at 6-8 weeks of age were housed
individually in clear polycarbonate conventional cages or clear/yellow polycarbonate
microisolator cages with certified irradiated contact bedding and acclimated to the study
facility for at least 24 hours. Food and water were given ad libitum. Environmental
controls were set to maintain temperatures of 18 to 26 degrees C (64 to 79 degrees F) with
a relative humidity of 30% to 70%. A 12:12 hour light:dark cycle was maintained.
Animals were randomized into four treatment groups (ten animals each), based
on body weight on the day following arrival. The mean body weights for each group was
reviewed to ensure that the mean values and standard deviation satisfied the assumption of
homogeneity.
On day 1, treatment groups 1 and 2 were administered the negative control
antibody (of the same isotype as the anti-CGRP antibodies) and groups 3 and 4 received
antibodies Ab3 and Ab6, respectively (all antibodies administered i.p. at 10 mg/kg, dose
volume 2.63 mL/kg).
On day 2, treatment groups 2, 3, and 4 were administered CGRP (0.05 mg/kg,
dose volume 3.33 mL/kg) i.p. and group 1 was administered an equal dose volume of
phosphate buffered saline i.p.. The animals were then placed on a piece of absorbent paper
inside a cage separate from their home cage immediately post dose. The piece of paper was
weighed prior to placing it in the bottom of the cage and the weight was recorded. Each
animal’s bowel movements were monitored for 30 minutes post CGRP dose. Observations
were made as incidence and total weight of diarrhea (that which sticks to the paper). A
positive incidence of diarrhea was recorded if a loose stool was present. Gross fecal weight
was determined by lifting the paper out of the cage by grasping the long side and lifting
while holding the paper at approximately a 45 degree angle, and shaking lightly. Any
stools that rolled off were considered normal, anything that stuck to the paper was
considered diarrhea. The piece of paper with any stools attached was then placed on the
scale and weighed.
Results
After CGRP administration the effects of the two different anti-CGRP antibodies
on gastrointestinal distress, in this case diarrhea, were assessed during a 30 minute
observation period and compared with the two control groups. As shown in , 80%
of the positive control animals (receiving CGRP and the negative control antibody)
exhibited diarrhea, compared to only 60% and 40% of the animals receiving Ab6 and Ab3.
None of the negative control animals exhibited diarrhea. In addition, the gross fecal weight
in the animals which received the CGRP antibody was significantly less than the control
animals (). Further, the fecal consistency in the animals which received the control
antibody was much more fluid (watery) relative to the animals which received the anti-
CGRP antibodies, another indication that the CGRP antibody had helped to restore normal
gastrointestinal function and specifically normal colonic evacuation.
These results further confirm that an anti-CGRP antibody may be effective to
prevent or treat diarrhea and related conditions.
Example 10 Effect of CGRP Antibody Administration on Colonic Evacuation
A further experiment was conducted in C57BL/6 mice to assess the potential
efficacy of CGRP antibody administration for the treatment or prevention of diarrhea and
related gastrointestinal disorders. A higher dosage of anti-CGRP antibodies was utilized
than in Example 9 and the effect on diarrhea incidence and gross fecal weight was more
pronounced.
Methods
Diarrhea was experimentally induced in C57BL/6 mice, with ten mice in each of
four treatment groups as in Example 9, except that the dosage of each antibody was three
times higher (30 mg/kg, dose volume 7.89 mL/kg), and the dose volume of CGRP was
three times higher though the dosage of CGRP was the same (0.05 mg/kg, dose volume
was 10 mL/kg). Group 1 (negative control) received the negative control antibody on day
1 and phosphate buffered saline on day 2. Groups 2, 3, and 4 received the control
antibody, Ab3, and Ab6, respectively, on day 1, and CGRP on day 2. Antibodies and
CGRP were administered i.p..
Results
After CGRP administration the effects of the two different anti-CGRP antibodies
on gastrointestinal distress, in this case diarrhea, was assessed during a 30 minute
observation period and compared with the two control groups. As shown in , 80%
of the positive control animals (receiving CGRP and the negative control antibody)
exhibited diarrhea, compared to only 40% and 20% of the animals receiving Ab6 and Ab3.
None of the negative control animals exhibited diarrhea. In addition, the average gross
fecal weight in the animals which received the anti-CGRP antibodies was significantly less
than the control animals (). Further, the fecal consistency in the animals which
received the control antibody was much more fluid (watery) relative to the animals which
received the anti-CGRP antibodies, another indication that the CGRP antibody had helped
to restore normal gastrointestinal function and specifically normal colonic evacuation.
These results further confirm that an anti-CGRP antibody may be effective to
prevent or treat diarrhea and related conditions.
Claims (87)
1.) Use of an anti-CGRP antibody or anti-CGRP antibody fragment or an anti-CGRP (CGRP-R) receptor antibody or an anti-CGRP-R antibody fragment in the manufacture of a medicament for inhibiting, preventing or treating diarrhea or dysentery and/or maintaining appropriate electrolyte and fluid levels in the colon of a subject having diarrhea or dysentery.
2.) The use of claim 1, wherein the diarrhea or dysentery is associated with increased CGRP.
3.) The use of claim 1 or 2, wherein the diarrhea is acute diarrhea or chronic diarrhea.
4.) The use of claim 1 or 2, wherein the diarrhea comprises osmotic diarrhea, secretory diarrhea, motility diarrhea, exudative diarrhea, and/or inflammatory diarrhea.
5.) The use of claim 1 or 2, wherein diarrhea is caused by a chronic or acute condition selected from a functional bowel disorder, irritable bowel syndrome, coeliac disease, pancreatic disease, pancreatitis, type 1 diabetes, type 2 diabetes, cystic fibrosis, Crohn's disease, diabetic neuropathy, menstruation, hyperthyroidism, hormone imbalance, enteritis, an inflammatory bowel disease, microscopic colitis, ischemic bowel disease, ulcerative colitis, mucositis, or tuberculosis.
6.) The use of claim 1 or 2, wherein the diarrhea is a bacterial-induced diarrhea-induced diarrhea, a parasitic-induced diarrhea or a viral-induced diarrhea.
7.) The use of claim 1 or 2, wherein the diarrhea is caused by a parasite selected from Entaamoeba histolytica, Giardia, or another protozoan.
8.) The use of claim 1 or 2, wherein the diarrhea is caused by a bacterium selected from E coli, Shigella, Entaamoeba histolytica, Salmonella, Campylobacter, or Clostridium difficile.
9.) The use of claim 1 or 2, wherein the diarrhea is caused by a virus selected from rotavirus, RSV, HIV, norvovirus, adenovirus, or astrovirus.
10.) The use of claim 1 or 2, wherein the diarrhea is caused by food poisoning.
11.) The use of claim 1 or 2, wherein the diarrhea is caused by a functional bowel disorder selected from the group consisting of gastro-esophageal reflux, dyspepsia, irritable bowel syndrome, functional abdominal pain syndrome, bile acid malabsorption, and diverticulitis.
12.) The use according to claim 1 or 2, wherein the diarrhea is caused by an inflammatory bowel disease is selected from the group consisting of Crohn's disease, ileitis, collagenous colitis, lymphocytic colitis, and ulcerative colitis.
13.) The use of claim 1 or 2, wherein the diarrhea is caused by a cancer or a cancer treatment associated with diarrhea.
14.) The use of claim 13, wherein the cancer is medullary thyroid carcinoma, hormone secreting tumor condition, renal cancer, liver cancer, or a colorectal cancer.
15.) The use of claim 13, wherein the cancer treatment associated with diarrhea is selected from chemotherapy, cytokine therapy and radiation or a combination thereof.
16.) The use of claim 13 or 15, wherein said treatment results in mucositis or damage to the intestinal brush border.
17.) The use of claim 15, wherein the chemotherapy includes a platinum compound.
18.) The use of claim 1 or 2, wherein the diarrhea is caused by a drug, chemotherapy, an immunoregimen, cell therapy, and/or radiation therapy.
19.) The use of claim 18, wherein the drug is an antibiotic, analgesic agent such as an NSAID or opioid compound, antidepressant, or hormone.
20.) The use of claim 1 or 2, wherein the medicament comprising the antibody or antibody fragment is to be administered, or when administered, is administered, as a monotherapy.
21) The use of claim 1 or 2, wherein the medicament comprising the antibody or antibody fragment is in a form for administration as a monotherapy.
22.) The use of claim 1 or 2, wherein the medicament comprising the antibody or antibody fragment is to be administered, or when administered, is administered, with another anti- diarrhea treatment agent.
23) The use of claim 1 or 2, wherein the medicament comprising the antibody or antibody fragment is in a form for administration with another anti-diarrhea treatment agent.
24.) The use of claim 22 or claim 23, wherein the other agent is an anti-motility agent, a bile acid sequestrant, electrolyte solution or probiotic.
25) The use of claim 24, wherein the anti-motility agent is loperamide, a bismuth compound, codeine, or a zinc compound.
26) The use of claim 24, wherein the bile acid sequestrant is cholestyramine, colestipol, or colesevelam.
27.) The use of any one of claims 1-26, wherein the antibody or antibody fragment is an anti-human CGRP antibody or antibody fragment which specifically binds to the same or an overlapping linear or conformational epitope(s) and/or competes for binding to the same or an overlapping linear or conformational epitope(s) on an intact CGRP polypeptide or fragment thereof as an anti-human CGRP antibody comprising a variable light (V ) chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a variable heavy (V ) chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133, or an anti-human CGRP antibody or antibody fragment comprising a V chain comprising the same complementarity determining regions (CDRs) as any of said V chains and a V chain comprising the same CDRs as any of said V L H H chains.
28.) The use of any one of claims 1-27, wherein the antibody or antibody fragment specifically binds to the same or an overlapping linear or conformational epitope(s) and/or competes for binding to the same or an overlapping linear or conformational epitope(s) on an intact human CGRP polypeptide or a fragment thereof as an anti-human CGRP antibody comprising a variable light (V ) chain selected from SEQ ID NOs: 21, 51, 121, or 131, and a variable heavy (V ) chain selected from SEQ ID NOs: 23, 53, 123 or 133, or an anti- human CGRP antibody or antibody fragment comprising a V chain comprising the same complementarity determining regions (CDRs) as any of said V chains and a V chain comprising the same CDRs as any of said V chains.
29.) The use of any one of claims 1-28, wherein the antibody fragment is selected from a Fab fragment, a Fab' fragment, or a F(ab')2 fragment.
30.) The use of claim 29, wherein said fragment is a Fab fragment.
31.) The use of any one of claims 1-30, wherein said anti-human CGRP antibody or antibody fragment comprises 1, 2, 3, 4, 5 or all 6 complementarity determining regions (CDRs) identical to those contained in an anti-human CGRP antibody comprising a variable light (V ) chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a variable heavy (V ) chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133, or an anti-human CGRP antibody or antibody fragment comprising a V chain comprising the same complementarity determining regions (CDRs) as any of said VL chains and a VH chain comprising the same CDRs as any of said V chains.
32.) The use of claim 31, wherein at least 2 of the CDRs are identical to those contained in an antibody comprising a V chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a V chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
33.) The use of claim 31, wherein at least 3 of the CDRs are identical to those contained in an antibody comprising a VL chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a V chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
34.) The use of claim 31, wherein at least 4 of the CDRs are identical to those contained in an antibody comprising a V chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a V chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
35.) The use of claim 31, wherein at least 5 of the CDRs are identical to those contained in an antibody comprising a V chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a V chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
36.) The use of claim 31, wherein all 6 of the CDRs are identical to those contained in an antibody comprising a V chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 81, 91, 101, 111, 121, or 131, and a VH 53, 63, 73, 83, 93, 103, 113, 123 or 133.
37.) The use of any one of claims 1-36, wherein the antibody or antibody fragment comprises a variable light (V ) chain comprising the CDR 1 sequence of SEQ ID NO:25, the CDR 2 sequence of SEQ ID NO:26, and the CDR 3 sequence of SEQ ID NO:27, and/or a variable heavy (V ) chain comprising the CDR 1 sequence of SEQ ID NO:28, the CDR 2 sequence of SEQ ID NO:29, and the CDR 3 sequence of SEQ ID NO:30.
38.) The use of any one of claims 1-36, wherein the antibody or antibody fragment comprises a variable light (V ) chain comprising the CDR 1 sequence of SEQ ID NO:55, the CDR 2 sequence of SEQ ID NO:56, and the CDR 3 sequence of SEQ ID NO:57, and/or a variable heavy (V ) chain comprising the CDR 1 sequence of SEQ ID NO:58, the CDR 2 sequence of SEQ ID NO:59, and the CDR 3 sequence of SEQ ID NO:60.
39.) The use of any one of claims 1-36, wherein the antibody or antibody fragment comprises at least 2 complementarity determining regions (CDRs) in each of the variable light (V ) and the variable heavy (V ) chains which are identical to those contained in an anti-human CGRP antibody comprising a V chain selected from SEQ ID NOs: 11, 21, 31, 41, 51, 121, or 131, and a VH chain selected from SEQ ID NOs: 13, 23, 33, 43, 53, 123 or 133.
40.) The use of any one of claims 1-36, wherein the antibody or antibody fragment comprises at least 3, 4, 5 or 6 complementarity determining regions (CDRs) in each of the variable light (V ) and the variable heavy (V ) chains which are identical to those contained in an anti-human CGRP antibody comprising a variable light (V ) chain selected from SEQ ID NOs: 21, 51, 121, or 131, and a variable heavy (V ) chain selected from SEQ ID NOs: 23, 53, 123 or 133.
41.) The use of any one of claims 1-40, wherein the antibody or antibody fragment is non- glycosylated or lacks N-glycosylation or if glycosylated only contains only mannose residues.
42.) The use of any one of claims 1-41, wherein the antibody or antibody fragment contains an Fc region that has been modified to alter effector function, half-life, proteolysis, and/or glycosylation.
43.) The use of any one of claims 1-42, wherein the antibody or antibody fragment is a humanized, single chain or chimeric antibody.
44.) The use of any one of claims 1-43, wherein the antibody or antibody fragment specifically binds to CGRP expressing human cells and/or to circulating soluble CGRP molecules in vivo.
45.) The use of any one of claims 1-44, wherein the antibody or antibody fragment comprises a variable heavy (V ) chain having an amino acid sequence selected from: SEQ ID NO: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123, or 133, or a variant thereof; and further comprising a variable light (V ) chain having an amino acid sequence selected from: SEQ ID NO: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121 or 131, or a variant thereof which possesses at least 90% sequence identity therewith, wherein one or more of the framework (FR) or complementarity determining region (CDR) residues in said V chain or V chain has been substituted, deleted or another amino acid residue added resulting in an anti-CGRP antibody that specifically binds CGRP.
46.) The method of claim 45, wherein one or more of said FR residues are substituted with an amino acid present at the corresponding site in a parent rabbit anti-CGRP antibody or rabbit antibody fragment from which the complementarity determining regions (CDRs) contained in said V chain or V chain has been derived or by a conservative amino acid substitution.
47.) The use of any one of claims 1-46, wherein said antibody or antibody fragment is humanized.
48.) The use of any one of claims 1-46, wherein said antibody or antibody fragment is chimeric.
49.) The use of any one of claims 1-43, wherein said antibody or antibody fragment comprises a single chain antibody.
50.) The use of claim 48, wherein said chimeric antibody comprises a human F .
51.) The use of claim 50, wherein said human F is derived from IgG1, IgG2, IgG3, or IgG4.
52.) The use of any one of claims 1-51, wherein the antibody or antibody fragment inhibits the association of CGRP with CGRP-R and/or multimers thereof, one or more additional proteins in a CGRP-CGRP-R complex, and/or antagonizes the biological effects thereof.
53.) The use of claim 45, wherein the antibody or antibody fragment comprises a polypeptide sequence having at least 90% or greater homology to any one of the polypeptide sequences recited therein.
54.) The use of claim 45, wherein the antibody or antibody fragment comprises a polypeptide sequence having at least 95% or greater homology to any one of the polypeptide sequences recited therein.
55.) The use of any one of claims 1-54, wherein the antibody or antibody fragment binds to -4 -1 -5 -1 -5 -1 -6 -1 CGRP with an off-rate (Koff) of less than or equal to 10 S , 5x10 S , 10 S , 5x10 S , -6 -1 -7 -1 -7 -1 10 S , 5x10 S , or 10 S .
56.) The use of any one of claims 1-55, wherein the antibody or antibody fragment inhibits the production of CGRP with CGRP-R and/or multimers thereof, and the production of CGRP with CGRP-R and one or more additional proteins in a complex.
57.) The use of any one of claims 1-56, wherein the anti-CGRP antibody or antibody fragment binds to the same or an overlapping CGRP epitope as an anti-CGRP antibody comprising a variable light (VL) chain selected from SEQ ID NOs: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and a variable heavy (V ) chain selected from SEQ ID NOs: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133, or an anti-human CGRP antibody or antibody fragment comprising a V chain comprising the same complementarity determining regions (CDRs) as any of said V chains and a V chain comprising the same CDRs as any of said V chains.
58.) The use of any one of claims 1-57, wherein the anti-CGRP antibody or fragment comprises one or more of the complementarity determining regions (CDRs) contained in the variable heavy (V ) chain selected from: SEQ ID NO: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123, or 133 and/or one or more of the CDRs contained in the variable light (V ) chain selected from: SEQ ID NO: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121 or 131.
59.) The use of any one of claims 1-58, wherein the medicament comprising the antibody or antibody fragment is to be administered, or when administered, is administered, intramuscularly, subcutaneously, intravenously, rectally, by infusion, orally, transdermally or via inhalation.
60) The use of any one of claims 1-58, wherein the medicament comprising the antibody or antibody fragment is in a form for intramuscular, subcutaneous, intravenous, rectal, infusion, oral, transdermal or inhalation administration.
61.) The use of any one of claims 1-58, wherein the medicament comprising the antibody or antibody fragment is to be administered, or when administered, is administered, intravenously.
62) The use of any one of claims 1-58, wherein the medicament comprising the antibody or antibody fragment is in a form for intravenous administration.
63.) The use of claim 1 or 2, wherein the CGRP-associated diarrhea is selected from diarrhea associated with irritable bowel syndrome, inflammatory bowel disease, Crohn's disease, ileitis, ulcerative colitis, cholera, pancreatic disease, lactose intolerance, fructose malabsorption, malabsorption, magnesium overdose, magnesium over-ingestion, vitamin C overdose, vitamin C over-ingestion, sorbitol overdose, sorbitol over-ingestion, food poisoning, E. coli infection, enzyme deficiency, mucosal abnormality, celiac disease, gluten intolerance, pernicious anemia, food allergy, food intolerance, short bowel syndrome, radiation fibrosis, diarrhea associated with chemotherapy, orlistat treatment, cystic fibrosis, pancreatitis, chronic ethanol ingestion, ischemic bowel disease, microscopic colitis, bile salt malabsorption (primary bile acid diarrhea), elevated serotonin secretion, elevated serotonin levels, or toddler's diarrhea.
64.) The use of claim 1 or 2, wherein the medicament is to be administered, or when administered, is administered, with another therapeutic agent or regimen selected from the group consisting of: antibiotics, antivirals, absorbents, anti-motility medications, bismuth compounds, bismuth subsalicylate, bile acid sequestrants, probiotics, digestive enzymes, lactase, zinc, oral rehydration therapy, and any combination thereof.
65) The use of claim 1 or 2, wherein the medicament is in a form for administration with another therapeutic agent or regimen selected from the group consisting of: antibiotics, antivirals, absorbents, anti-motility medications, bismuth compounds, bismuth subsalicylate, bile acid sequestrants, probiotics, digestive enzymes, lactase, zinc, oral rehydration therapy, and any combination thereof.
66.) The use of claim 64 or claim 65, wherein said anti-motility agents are selected from the group consisting of loperamide (Imodium), diphenoxylate with atropine (Lomotil), opiates, paregoric tincture of opium, codeine, and morphine.
67.) The use of claim 64 or claim 65, wherein said bile acid sequestrants are selected from the group consisting of: cholestyramine, colestipol and colesevelam.
68.) The use of claim 1 or 2, wherein the anti-CGRP antibody or antibody fragment having binding specificity for CGRP comprises variable light (V ) chain CDR1, CDR2, and CDR3 polypeptide sequences and variable heavy (VH) chain CDR1, CDR2, and CDR3 polypeptide sequences selected from the following: V V V V V V L L L H H H CDR1 CDR2 CDR3 CDR1 CDR2 CDR3 A Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 5 No: 6 No: 7 No: 8 No: 9 No: 10 B Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 15 No: 16 No: 17 No: 18 No: 19 No: 20 C Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 25 No: 26 No: 27 No: 28 No: 29 No: 30 D Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 35 No: 36 No: 37 No: 38 No: 39 No: 40 E Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 45 No: 46 No: 47 No: 48 No: 49 No: 50 F Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 55 No: 56 No: 57 No: 58 No: 59 No: 60 G Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 65 No: 66 No: 67 No: 68 No: 69 No: 70 H Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 75 No: 76 No: 77 No: 78 No: 79 No: 80 I Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 85 No: 86 No: 87 No: 88 No: 89 No: 90 J Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 95 No: 96 No: 97 No: 98 No: 99 No: 100 K Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 105 No: 106 No: 107 No: 108 No: 109 No: 110 L Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 115 No: 116 No: 117 No: 118 No: 119 No: 120 M Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 125 No: 126 No: 127 No: 128 No: 129 No: 130 N Seq ID Seq ID Seq ID Seq ID Seq ID Seq ID No: 135 No: 136 No:137 No: 138 No: 139 No: 140
69.) The use of claim 68, wherein said antibody or antibody fragment is an scFv, camelbody, nanobody, IgNAR (single-chain antibodies derived from sharks), Fab, Fab', or F(ab')2 fragment.
70.) The use of claim 68, wherein said anti-CGRP antibody or antibody fragment is a Fab fragment.
71.) The use of claim 68, wherein said antibody or antibody fragment comprises a variable light (VL) chain polypeptide sequence and a variable heavy (VH) chain polypeptide sequence selected from the following: VL Chain VH Chain A Seq ID No: 1 Seq ID No: 3 B Seq ID No: 11 Seq ID No: 13 C Seq ID No: 21 Seq ID No: 23 D Seq ID No: 31 Seq ID No: 33 E Seq ID No: 41 Seq ID No: 43 F Seq ID No: 51 Seq ID No: 53 G Seq ID No: 61 Seq ID No: 63 H Seq ID No: 71 Seq ID No: 73 I Seq ID No: 81 Seq ID No: 83 J Seq ID No: 91 Seq ID No: 93 K Seq ID No: 101 Seq ID No: 103 L Seq ID No: 111 Seq ID No: 113 M Seq ID No: 121 Seq ID No: 123 N Seq ID No: 131 Seq ID No: 133
72.) The use of claim 68, wherein said antibody or antibody fragment comprises a light chain polypeptide sequence and a heavy chain polypeptide sequence selected from the following: Light Chain Heavy Chain Ab1 Seq ID No: 2 Seq ID No: 4 Ab2 Seq ID No: 12 Seq ID No: 14 Ab3 Seq ID No: 22 Seq ID No: 24 Ab4 Seq ID No: 32 Seq ID No: 34 Ab5 Seq ID No: 42 Seq ID No: 44 Ab6 Seq ID No: 52 Seq ID No: 54 Ab7 Seq ID No: 62 Seq ID No: 64 Ab8 Seq ID No: 72 Seq ID No: 74 Ab9 Seq ID No: 82 Seq ID No: 84 Ab10 Seq ID No: 92 Seq ID No: 94 Ab11 Seq ID No: 102 Seq ID No: 104 Ab12 Seq ID No: 112 Seq ID No: 114 Ab13 Seq ID No: 122 Seq ID No: 124 Ab14 Seq ID No: 132 Seq ID No: 134
73.) The use of claim 68, wherein said antibody or antibody fragment comprises a variable light (V ) chain having an amino acid sequence at least 90% identical to one of the V chain polypeptide sequences of SEQ ID NOS: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and variable heavy (V ) chain having an amino acid sequence at least 90% identical to one of the V chain polypeptide sequences of SEQ ID NOS: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
74.) The use of claim 68, wherein said antibody or antibody fragment comprises a variable light (V ) chain having an amino acid sequence at least 95% identical to one of the V chain polypeptide sequences of SEQ ID NOS: 1, 11, 21, 31, 41, 51, 61, 71, 81, 91, 101, 111, 121, or 131, and variable heavy (V ) chain having an amino acid sequence at least 95% identical to one of the V chain polypeptide sequences of SEQ ID NOS: 3, 13, 23, 33, 43, 53, 63, 73, 83, 93, 103, 113, 123 or 133.
75.) The use of claim 68 or claim 69, wherein said antibody or antibody fragment is chimeric or humanized.
76.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment is entirely aglycosylated or lacks N-glycosylation or comprises only mannose residues.
77.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment comprises a human constant domain.
78.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment is an IgG1, IgG2, IgG3 or IgG4 antibody.
79.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment contains an Fc region that has been modified to alter at least one of effector function, half-life, proteolysis, and/or glycosylation.
80.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment has an Fc region that contains a mutation that alters or eliminates glycosylation or eliminates N-glycosylation.
81.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment is directly or indirectly attached to a detectable label or therapeutic agent.
82.) The use of claim 68 or claim 69, wherein said anti-CGRP antibody or antibody fragment further comprises an effector moiety.
83.) The use of claim 82, wherein said effector moiety is a detectable moiety or a functional moiety.
84.) The use of claim 83, wherein said detectable moiety is a fluorescent dye, an enzyme, a substrate, a bioluminescent material, a radioactive material, or a chemiluminescent material.
85.) The use of claim 83, wherein said functional moiety is streptavidin, avidin, biotin, a cytotoxin, a cytotoxic agent, or a radioactive material.
86) The use of any one of claims 1 to 85, wherein the anti-CGRP antibody, anti-CGRP antibody fragment, anti-CGRP receptor antibody, or anti-CGRP receptor antibody fragment is present in the medicament in an effective amount.
87) A use as claimed in any one of claims 1 to 86, substantially as herein described with reference to any example thereof and with or without reference to the accompanying drawings.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ717704A NZ717704A (en) | 2011-05-20 | 2012-05-21 | Use of anti-cgrp or anti-cgrp-r antibodies or antibody fragments to treat or prevent chronic and acute forms of diarrhea |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161488660P | 2011-05-20 | 2011-05-20 | |
US61/488,660 | 2011-05-20 | ||
US201161496873P | 2011-06-14 | 2011-06-14 | |
US61/496,873 | 2011-06-14 | ||
PCT/US2012/038869 WO2012162253A2 (en) | 2011-05-20 | 2012-05-21 | Use of anti-cgrp or anti-cgrp-r antibodies or antibody fragments to treat or prevent chronic and acute forms of diarrhea |
Publications (2)
Publication Number | Publication Date |
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NZ618639A NZ618639A (en) | 2016-04-29 |
NZ618639B2 true NZ618639B2 (en) | 2016-08-02 |
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