WO2013085604A1 - Reduction of galectin-3 levels by plasmapheresis - Google Patents
Reduction of galectin-3 levels by plasmapheresis Download PDFInfo
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- G01N2333/4701—Details
- G01N2333/4724—Lectins
Definitions
- Galectins are a family of lectins (sugar binding proteins) that are characterized by having at least one carbohydrate recognition domain (CRD) with an affinity for beta-galactosides. These proteins were recognized as a family only recently, but are found throughout the animal kingdom, and are found in mammals, birds, amphibians, fish, sponges, nematodes and even fungi. This application focuses on galectins in mammals, and in particular, humans. Although the invention herein may be employed with both companion animals (e.g.. pets such as dogs and cats) and commercial animals (such as cows, pigs and sheep) the methods and subject matter addressed herein are particularly focused on the treatment of humans.
- companion animals e.g.. pets such as dogs and cats
- commercial animals such as cows, pigs and sheep
- Galectins mediate and modulate a wide variety of intracellular and extracellular functions, and thus are both expressed within the cell and frequently targeted to a specific cytosolic site, and secreted from the cell, for distribution extra-cellularly, as a component of human plasma.
- functions that are mediated by extracellular galectins are inflammation, fibrosis formation, cell adhesion, cell proliferation and metastatic formation (cancer) and immunosuppression.
- Galectins are a family of fifteen (15) carbohydrate-binding proteins (lectins) highly conserved throughout animal species. Most galectins are widely distributed, though galectin -5, -10 and -12 show tissue-specific distribution.
- galectins While galectins are variably expressed by all immune cells, they are upregulated in activated B and T cells, inflammatory macrophages, natural killer (NK) cells, and FoxP3 regulatory T cells. Galectins contain a variety of structural arrangements, but a relatively conserved carbohydrate recognition domain (CRD). The majority of galectins display a single CRD, and are biologically active as monomers (galectin-5,-7 and -10), or require homodimerization for functional activity (galectin- 1,-2,- 1 1,-13,-14 and-15).
- CRD carbohydrate recognition domain
- tandem-repeat-type galectins (galectin-4,-8,-9, and -12) contain two CRDs separated by a short linker peptide, while galectin-3 (chimeric type) has a single CRD fused to a non-lectin domain that can be complexed with other galectin-3 monomers to form an oligomeric pentamer.
- galectins such as galectin- 10, bind to mannose-containing glycans.
- family of galectins -1, -3, and -9 are particularly important as potential therapeutic targets, and -2,-4,-5,-6,-7,-8,-10, -11,-12,-13, -
- galectin-7 has been implicated in the development of certain forms of cancer. St. Pierre et al, Front. Biosci., 1 : 17 ' , 438-50 (2012) and in a variety of specific cancers, including gal-2, -4 and -8 in the context of colon and breast cancer, Barrow et al, Clin. Cancer Res, . 15; 17 (22) 7035-46 (201 1). Squamous cell carcinoma of the tongue, Alves et al, Pathol. Res. Pract. 15;207 (4) 236 ⁇ 10 (201 1) has been shown to be associated with elevated levels of gal- 1, -3 and -7, while cervical squamous carcinoma has been shown linked to gal-7 levels, Zhu et al, Int. J. Cancer, (Aug., 2012). A number of galectins, including gal-
- galectins critical elements of a wide variety of disease, injury and trauma related phenomena. In many cases, the presence of unwanted concentrations of galectins can aggravate a disease condition or trauma situation, or interfere with attempts to treat diseases, such as cancer or congestive heart failure.
- galectin-1, galectin-3 and galectin-9 are of particular interest. As indicated above, these proteins are generally referred to, and referred to herein as, gal-1, gal-3 and gal-9.
- Gal-3 is particularly prominent in fibrosis, inflammation and cell proliferation, while gal-1 also plays a role in the immunosuppression required for a successful pregnancy.
- Gal-1 is also thought to be involved in the differentiation of nerve cells.
- Gal-9 has been shown to be involved in the control of lesions arising from immunoinflammatory diseases, and is generally implicated in inflammation - gal-9 apparently plays a role in eosinophil recruitment in inflammatory sites. It also appears to mediate apoptosis in certain activated cells.
- Binding and blocking activity of gal-3 in the circulation, or removal of large amounts of gal-3 from circulation may therefore improve existing medical treatments, suppress and/or reduce inflammation and fibrosis resulting from others, and make it possible to intervene in various disease states not otherwise easily treated.
- the invention is equally applicable to the reduction in circulating levels of other galectins to address conditions mediated by those galectins.
- This invention makes use of plasmapheresis, sometimes referred to as therapeutic plasma exchange, to control levels of gal-3, and more specifically biologically active galectin, in circulation.
- Plasma is lead through a fluid pathway and either intermixed with a gal-3 binding agent which can be separated from the plasma, or returned to the body with blocked inactivated gal-3, or lead past a solid support which binds gal-3, the plasma being subsequently returned to the body with a reduced level of gal-3.
- Gal-3 is approximately 30 kDa and, like all galectins, contains a carbohydrate- recognition-binding domain (CRD) of about one hundred thirty (130) amino acids that enable the specific binding of ⁇ -galactosides.
- Gal-3 is encoded by a single gene, LGALS3, located on chromosome 14, locus q21-q22. This protein has been shown to be involved in a large number of biological processes. The list set forth herein is exemplary only as new situations and roles for gal-3 are continually being revealed.
- gal-3 Given gal-3 's broad biological functionality, it has been demonstrated to be involved in a large number of disease states or medical implications. Studies have also shown that the expression of gal-3 is implicated in a variety of processes associated with heart failure, including myofibroblast proliferation, fibrogenesis, tissue repair, inflammation, and ventricular and tissue remodeling. Elevated levels of gal-3 in the blood have been found to be significantly associated with increased morbidity and mortality. They have also been found to be significantly associated with higher risk of death in both acute decompensated heart failure and chronic heart failure populations.
- Inflammation is a commonly encountered body condition - a natural response of the body to a variety of diseases and trauma.
- gal-3 levels above normal levels are implicated in a wide variety of situations where harmful inflammation is encountered.
- inflammatory conditions associated with elevated gal-3 levels include aggravated inflammation associated with non-degradable pathogens, autoimmune reactions, allergies, ionizing radiation exposure, diabetes, heart disease and dysfunction, atherosclerosis, bronchial inflammation, intestinal ulcers, intestinal
- inflammation of the bowels cirrhosis-associated hepatic inflammation, parasitic infection associated inflammation, inflammation associated with viral infection, inflammation associated with fungal infection, inflammation associated with arthritis, with multiple sclerosis and psoriasis.
- inflammation is a pathway frequently employed by the body in responding to any number of challenges, elevated levels of gal-3 have been found to aggravate the inflammation, causing damage and injury leading to morbidity or mortality in a wide variety of situations that are otherwise manageable, including inflammation due to heavy metal poisoning and similar toxins, stroke and related ischemic injuries, liver inflammation due to acetaminophen, a number of T-cell mediated responses generally involved in autoimmune diseases and the like.
- Gal-3 is also involved with kidney injury and kidney disease, hepatitis, pulmonary hypertension and fibrosis, diabetes, and gastrointestinal inflammatory conditions such as Ulcerative colitis, Chrone's, Celiac, and others.
- Gal-3 is associated with, and apparently aggravate, a number of inflammatory conditions, including those contributing to heart, kidney, lung, and liver disease. Gal-3 is also associated with a fibrotic formation, particularly in response to organ damage. Higher levels of circulating gal-3 are found to induce pathogenic fibroses in cardiovascular disease, gastroenterological disease, cardiovascular trauma, renal tissue trauma, brain trauma, lung trauma, hepatic tissue trauma, tissue damage due to radiation therapy and diseases and conditions of connective tissue and skin such as systemic sclerosis.
- Plasmapheresis is a blood separation technology, where blood is diverted from the body through a needle or catheter to a separator which removes blood cells and returns them to the body, leaving a plasma.
- U.S. Patent Nos. 6,245,038 and 6,627,151 each describe a variety of methods of separating out plasma contents and returning the treated plasma to the patient after first removing red blood cells, in general, to reduce blood viscosity by removal of high molecular weight protein. While the invention that is the subject of this application focuses on the reduction in galectins circulating levels, such as gal-3 levels, and not high molecular weight proteins or directly addressing viscosity, the disclosure of these four (4) patents is incorporated herein-by -reference for their disclosure of available plasmapheresis techniques and apparatus which may generally be employed in this invention.
- Gal-3 binders such as Modified Citrus Pectin and other compounds can bind to circulating tumor cells (CTC's) and prevent them from creating new metastasis. These CTC's are often implicated in mutations and a more aggressive disease. Cancer stem cells that may also be circulating and get stimulated under conditions of stress and inflammation, provide gal-3 another mechanism for aggravating cancer. The method of these prior cases may be used in conjunction with the invention of this application. In particular, when there are a high number of gal-3 molecules circulating in the blood stream it makes it more difficult for the gal-3 binders to target these CTCs. In this respect, gal-3 molecules serve as decoy molecules. The decoy prevents, in this particular application of the invention, binding of the cancer cells in the circulatory or lymph system, as opposed to tissue level gal-3.
- Circulating gal-3 is empirically implicated in a wide variety of biological conditions, however. Cardiac fibrosis is gaining significant attention as a complicating risk factor in cardiac disease, and in particular, chronic heart failure (CHF). Lok et al, Clin. Res. Cardiol, 99, 323-328 (2010). DeFillipi et al, U.S.
- Inflammation is the hallmark of arteriosclerosis and therefore gal-3 levels also contribute to coronary artery disease, peripheral artery disease, strokes, and vascular dementia.
- Fibrosis and inflammation are implicated in a variety of conditions of the mammalian body, not just cardiac injury and heart failure.
- the binding of gal-3 achieved by administration of low molecular weight pectins is effective in reducing trauma due to kidney injury.
- Reducing circulating gal-3 levels may be effective in reducing fibrosis in the lungs and associated asthma.
- gal-3 is implicated in a wide variety of biological conditions, and a reduction in gal-3 activity, such as that which can be achieved by gal-3 binding with
- PectaSol-C MCP and similar low molecular weight pectins may be of value in treating gastric ulcerative conditions. Srikanta, Biochimie, 92, 2, 194-203 (2010). Kim et al,
- Gastroenterology, 138, 1035 ⁇ 15 (2010) indicate that reducing gal-3 levels may be of therapeutic value in reducing gastric cancer progression. By the same methodology, reducing gal-3 levels sensitizes gastric cancer cells to conventional chemotherapeutic agents. Cheong et al, Cancer Sci., 101, 1, 94-102 (2010). Gal-3 is implicated in a wide variety of gastrointestinal conditions. Reducing gal-3, by binding for example, may reduce inflammation in the gut mucosa, making MCP an important agent for treatment of ulcerative colitis, non-specific colitis and ileitis, Crohn's disease, Celiac disease, and gluten sensitivity. Fowler et al, Cell Microbiol. , 81,1,44-54 (2006).
- Biliary artesia a liver disease, is associated with extensive fibrosis of the liver linked with elevated gal-3 levels. Honsawek et al, Eur. J. Pediatr. Surg., April, 201 1.
- MCP may be used for prevention of liver inflammation, liver fibrosis and liver cirrhosis as well as post-disease liver damage, including the various viral hepatitis diseases (A, B, C, and others) and may be used as well in the treatment of parasitic and chemical hepatitis, chemical liver damage, and others.
- Gal-3 levels are implicated in a wide variety of liver associated ailments. Thus, gal-3 may be important in the control of Niemann-Pick disease type C, which is a lysosomal disorder characterized by liver disease and progressive neurodegeneration. Cluzeau et al, Hum. Mol. Geent. 14; 21 (16) 3632-46 (2012). There is increasing evidence that elevated gal-3 levels are tied to acetaminophen-induced hepatotoxicity and inflammation. Radosavljeci et al, Toxicol.
- gal-3 blockers such as MCP, and possibly other oligo-saccharides and various pharmaceutical agents to be developed to better attach to the gal-3 on the cell surface and on the tissue level.
- the gal-3 binding agent can more effectively bind to the Gal-3 in the target tissue.
- the invention resides in the removal of biologically active gal-3 from a mammal's circulation by plasmapheresis.
- the mammal may be a human, a primate, a model such as a rat or mouse, a commercial animal such as a cow or pig or goat, or a companion animal such as a dog or cat.
- Non-human mammalian animals for treatment include primates, both as models and as test beds for treatments and intervention that may benefit from removal of gal- 3 from circulation. Removal is achieved by plasmapheresis, a process traditionally developed and used to remove antibodies from the circulation of those suffering from autoimmune disorders and the like.
- plasmapheresis blood is removed from the patient, and blood cells are separated out from the plasma.
- the blood cells are returned to the body's circulation, diluted with fresh plasma or a substitute.
- Conventional plasmapheresis methods and medications that can include blood thinners are utilized. While in typical plasmapheresis, the plasma is run over proteins to which the target antibodies bind, in this particular case, the plasma is returned to the blood with the antibodies, cytokines, lymphocytes and other blood components, after having had gal-3 selectively removed or inactivated by contact with gal-3 binding molecules.
- Glaectin-3 In the case of autoimmune diseases, the removal of Glaectin-3 from the plasma can be an adjuvant therapy added to the traditional plasmapheresis performed for such patients.
- This treatment may be used for all the conditions where gal-3 levels are elevated in the blood or serum or where expression of gal-3 in the tissues is too high. Tissues will shed excess gal-3 into the blood stream where it can be removed through this invention.
- Treatment can be varied depending on the patient, the severity of the condition and the rate of the mammalian patient's expression of gal-3. Ordinarily, treatment every two to four weeks is contemplated until the condition is resolved, but treatment may be daily where required, or at any frequency there between. Daily treatment includes one or more plasma exchange sessions in a given day, or continuous plasmapheresis over a multiple hour period in acute conditions. Treatment can be administered on an acute or a chronic basis.
- this treatment is combined with the administration of gal-3 blockers and inhibitors, such as disclosed in U.S. Patent Application Serial No. 13/153,618.
- modified citrus pectin is a target inhibitor
- other gal-3 inhibitors such as other modified carbohydrates, including lactulosyl-l-leucine, Dermotte et al, Can. Res., 70 (19):476— 88 (October 2010) as well as antibodies specific for gal-3, and other antagonists like very low molecular weight pectin weighing as low as 1KD, GCS-100, Streetly et al, Blood, 115(19):3939-48 (published February 26, 2010 as an abstract) may be used.
- GCS is a polysaccharide derived from MCP, as opposed to reduced MCP.
- gal-3 binding antibodies are commercially available, from suppliers including abeam (ab2473), Novus Biologies (NB 100-91778) and Abgent (AJ13129). Other galectins-3 specific antibodies may be used. By removing large levels of plasma active gal-3 from the blood, the disease and injury due to inflammation or fibroses may be reduced, and the progression of cancer may be impeded. Similarly, conventional therapeutic treatments may be rendered more effective.
- soluble TNF receptors both R-l and/or R-2 at different ratios based on the condition, are removed, through the same process, by running the plasma fluid over a bed of binding agents of TNF receptors. TNF can then directly target cancer cells or other targets as an effective treatment.
- the reduction of active gal-3 in both the circulation and the tissue level will allow TNF to exert its beneficial effects with a reduced amount of inflammation and fibrosis which limits its use. Wu et al, Arch. Dermatol. 20: 1-7 (2012).
- the effective removal of serum gal-3 also enhances chemotherapy, particularly, but not exclusively, when combined with TNF receptor removal.
- Chemotherapy enhancement will take place by effective removal of serum gal-3, reducing drug resistance, even if no TNF receptors were removed from the circulation.
- Gal-3 interferes with platinum-based chemotherapy and other anti-cancer agents, and increases cell adhesion, and angiogenesis. Wu et al, Cell Oncol. 35(3): 175-80 (2012).
- removal of gal-3 by plasmapheresis alone, or together with administration of circulating gal-3 binders like low molecular weight modified citrus pectin, may effectively treat the diseases and conditions addressed above.
- this can be further enhanced by combining it with other therapies, one example being chemotherapy in cancer.
- Typical circulating gal-3 level averages for a Caucasian adult range from 7 on up to about 20 ng/ml, with a value of 12-15 nanograms of gal-3 per milliliter of serum being a representative and reported value.
- individuals facing serious illness or continued disability due to gal-3 mediated fibrosis, gal-3 mediated inflammation, and cancer growth, transformation and metastases associated with elevated gal-3 levels are treated by plasmapheresis to achieve a significant reduction in circulating gal-3 titer.
- the gal-3 levels in races other than Caucasians and subjects may vary, but the target is to reduce gal-3 levels below the appropriate normal value. Target levels can vary based on the condition, age, gender, and other therapies involved.
- treatment of the patient according to this invention may begin with plasmapheresis designed to reduce the patient's gal-3 to a preselected value consistent with good health and homeostasis in that individual. In some cases, it may be necessary to repeat or extend that treatment to achieve even greater reductions.
- This invention is straightforward in its application. It is recognizing how many different indications are served by this technology that is complex and startling.
- blood is removed from the patient according to well established protocols generally used for plasmapheresis. See, generally, Samuels et al, editors, Office Practice of Neurology, 1996.
- the removed blood is treated to remove blood cells from the plasma. These blood cells, together with an additional volume of plasma or plasma substitute, are returned directly to the patient.
- two to four liters of plasma may be removed, filtered, and replaced.
- the blood can also be recycled and recirculated extra corporally, and filtered as needed, for a number of times (continuously) until the desired reduction in serum levels of galecitn-3 is achieved.
- the blood cell-depleted plasma is then introduced to a chamber where gal-3 is removed or inactivated by binding antagonist, possibly creating a permanent bond that inactivates the gal-3.
- binding antagonist possibly creating a permanent bond that inactivates the gal-3.
- One of two alternative measures may be used to remove gal- 3, although they may be combined.
- the plasma is admixed with a particle which binds gal-3.
- this is an antibody or similar ligand, or a
- polysaccharide derivative that is most preferably modified citrus pectin (MCP), but any agent that can bind gal-3 can be used.
- MCP modified citrus pectin
- Methods of preparing low molecular weight pectins are known in the art, and set forth in U.S. Patent Application Serial No. 13/153,648.
- the binding agent is modified to be complexed with an agent that is easily removed.
- this is a magnetic particle.
- a magnetic field is applied to the fluid comprising the plasma and the MCP complex, and the bound gal-3 can be drawn off.
- Different filters that incorporate gal-3 binders can be used in the plasmapheresis process.
- the circulating gal-3 can be viewed as a sort of decoy released by the cancer cells. It has a protective quality as it doesn't allow the host, and doesn't allow gal-3 binders such as MCP, to reach the target tissue where galecin-3 is over expressed. It also induces inflammation and fibrosis and makes it more difficult for the host to bind to the gal-3 in the tissue and cell surface level. Removing the circulating gal-3 provides both a therapeutic treatment on its own and allows other agents to bind and inactivate the gal-3 in the target tissue level. This is similar to TNF Alpha and circulating TNF alpha receptors.
- Such plasmapheresis can be combined with plasmapheresis of other compounds, and can enhance an immune response and an anti-inflammatory response.
- the reduction of circulating gal-3 will allow one of skill in the art, typically a medical practitioner with at least five (5) years of experience in the field in addition to appropriate educational experience, to more easily neutralize and inactivate the tissue expressed gal-3, thus allowing for a local immune response with less inflammation and fibrosis.
- it can be combined with removal of TNF Alpha receptors, both R-l and R-2. It can also be combined with administration of TNF alpha or agents that enhance TNF alpha activity.
- the gal-3 comprising plasma may be run past a solid phase of immobilized gal-3 binding agents.
- MCP is one example and gal-3 specific antibodies, bound to a column or tube, are another.
- these two approaches to removal of gal-3 from circulation are combined. They can be combined in either order, but running the plasma past an immobile phase, followed by combining the plasma with an easily removable binding agent is preferred.
- the binding of an antagonist to gal-3 may be adequate to inactivate the molecule, and thus can be returned to the body without the step to remove it from the plasma.
- Elevated circulating Gal-3 can change a localized situation, such as localized inflammation or fibrosis, and convert it into a larger, systemic problem.
- gal-3 binds to components in the blood, which also bind toxic agents and the like, or similarly, when localized toxins are bound by gal-3, the damage potentially caused by these agents proximate to a localized injury or diseased tissue can become systemic.
- Gal-3 is a generally adhesive molecule. Elevated gal-3 levels will accelerate the spread of cancer from a localized tumor to a system wide, multi-organ problem.
- elevated gal-3 levels are associated with growth, transformation and metastatic migration of cancer cells across a wide variety of cancers, including liver cancer, kidney cancer, breast cancer, prostate cancer, colon cancer, thyroid cancer, cancer of the gallbladder, nasopharyngeal cancer, lymphocytic leukemia, lung cancer, melanoma, multiple myeloma, glioblastoma multiforme, uterine cancer, ovarian cancer, cervical cancer, and brain cancer among others, as well as reducing sensitivity in these cancers to conventional antineoplastic agents.
- Elevated gal-3 levels are also associated with the development and extension of fibroses beyond normal and healthy levels, in situations associated with cardiovascular disease and heart failure, in tissue injury including brain, lungs, renal, hepatic, heart and gastroenterological situations as well as tissue damage due to radiation and chemotherapy exposure.
- Above-normal gal-3 levels are also encountered in connection with inflammation.
- This can be disease or trauma associated inflammation, as well as persistent acute inflammation due to non-degradable pathogens, persistent foreign bodies, or autoimmune reactions, hypersensitivities and allergies, ionizing radiation, nuclear radiation and inflammation that may be associated with disease or organ failure modes, including diabetes (I and II), heart disease and dysfunction, atherosclerosis, asthma (bronchial inflammation), gastric and duodenal ulcers, intestinal inflammation in the bowels (inflammatory bowel diseases), hepatic inflammation associated with both alcohol and non-alcohol related cirrhosis and inflammation, liver infections such as viral hepatitis, among others.
- Other indications associated with inflammation and susceptible to treatment by plasmapheretic treatment to reduce gal-3 levels include a variety of parasite-induced conditions, such as trypanosomiasis, cerebral malaria, and inflammation and resistance to various infections including Paracoccidiosis brasilensis (fungal infection), schistosomiasis, granulatomatous bronchopneumonia, Lymes disease, Tubercolosis, etc.
- Reports of elevated gal-3 levels in connection with infection include Candida albicans, Reales-Calderon et al, J. Proteomics, 3 :75(15) 4734-46 (2012), Schistoma mansoni ( a parasitic infection) Brand etal, Histol. Histopathol.
- Inflammation mediated at least in part by circulating gal-3 levels also plays a role in organic psychiatric and brain disorders. This kind of inflammation has been associated with a wide variety of conditions, such as schizophrenia. Muller et al, Adv. Protein Chem Struct. Biol, 88, 49-68 (2012) and Palladino et al, J. Neuroinflammation, 22;9, 206 (2012). Thus, reducing elevated gal-3 levels may be one method to assist in the control of psychiatric disorders of this type which are difficult to control by therapeutic intervention alone.
- ADHD attention deficit hyperactivity disorder
- Gal-3 has also been shown to be involved in the proper differentiation of oligodendrocytes controlling myelin sheath conditions, Pasquin et al, Cell Death Differ., 18(11), 1746-56 (2012) and recovery and regrowth following traumatic brain injury. Venkatesan et al, J.
- inflammation and fibrosis can be induced by deliberate treatment, not just trauma or disease condition.
- the removal of circulating, unbound gal-3 through this invention can be effective in reducing or preventing organ damage induced by chemotherapy and other pharmaceuticals.
- Some examples include bleomycin, which induces lung fibroses, and a wide variety of cardiac drugs such as amiodarone. Adriamycin and doxorubicin are widely prescribed and present cardiac inflammation and fibroses issues.
- Bacillus Calmette-Guerin washes to treat bladder cancer induce systemic inflammation and cyclophosphamide also induces bladder damage.
- Cyclosporine a widely used immunosuppressant drug, and the active agent in RestasisTM, induces kidney toxicity and inflammation. Studies indicate that the vast array of organ damage caused by prescribed pharmaceuticals is mediated, at least in part, by elevated gal-3 levels, and can be limited if not eliminated by the method of this invention.
- the serum after having circulating gal-3 reduced or removed, as described, is further treated before returning it to the patient's blood stream.
- agents that may be more effective in the absence of, or in the presence of reduced levels of, galectin-3 are specifically added.
- an anti-inflammatory will work better, cardiac medications, any drugs delivered to address an issue where gal-3 is a contributing factor, or prevents effective delivery to the target tissue, will be enhanced by this process.
- agents will then have the opportunity to work under an environment of lower levels of gal-3. Even if just for a few hours, they can exhibit full biological activity. Once inflammation, for example, is reduced, naturally less gal-3 is being produced and expressed by the target tissue resulting in lower circulating gal-3 on a long term basis.
- the invention involves long term or chronic plasmapheresis to maintain reduced gal-3 levels
- the invention also contemplates intervention on a short term basis, both removing circulating gal-3 and providing agents otherwise inhibited by gal-3, to swiftly address inflammation in particular.
- Gal-3 levels can spike as a transient event, in response to trauma for example. Having a technique to rapidly lower gal- 3 levels in the patient, coupled with administration of active agents that are ordinarily inhibited to some degree by high levels of gal-3, can offer a lifesaving technique.
- Asthma, and related conditions primarily marked by exaggerated inflammation may be avoided or suppressed by removing circulating gal-3 through the process of this invention. These include inflammation of the gastrointestinal tract, and inflammation and the development of fibroses of the liver, interstitial cystitis, inflammation associated with brain and cognitive function, and others. Inflammation associated with parasite invasion may also be controlled by removal of gal-3, or reducing its circulating level through this invention. Other inflammation-associated diseases, such as diabetes and arthritis are similarly treated. These conditions may ideally be targets of this invention as well as administration of circulating gal-3 binding agents like MCP, and unrelated therapeutic agents.
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Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
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EP12855270.0A EP2788761B1 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
CN201280059901.7A CN104011544B (en) | 2011-12-08 | 2012-09-28 | The level of hL-31 is reduced by plasmaphoresis |
AU2012348311A AU2012348311B2 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
ES12855270.0T ES2669068T3 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
BR112014012823A BR112014012823A2 (en) | 2011-12-08 | 2012-09-28 | reduction of galectin-3 levels by plasmapheresis |
KR1020147013141A KR20140067173A (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
JP2014545892A JP6276701B2 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasma exchange therapy |
MX2014006620A MX355213B (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis. |
RU2014127685/15A RU2545859C1 (en) | 2011-12-08 | 2012-09-28 | Reducing galectin -3 levels by plasmapheresis |
NZ624601A NZ624601B2 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
DK12855270.0T DK2788761T3 (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasma apheresis |
CA2858601A CA2858601C (en) | 2011-12-08 | 2012-09-28 | Reduction of galectin-3 levels by plasmapheresis |
ZA2014/02824A ZA201402824B (en) | 2011-12-08 | 2014-04-16 | Reduction of galectin-3 levels by plasmapheresis |
IL232323A IL232323A (en) | 2011-12-08 | 2014-04-29 | Reduction of galectin-3 levels by plasmapheresis |
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US201161568210P | 2011-12-08 | 2011-12-08 | |
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EP (2) | EP2788761B1 (en) |
JP (2) | JP6276701B2 (en) |
KR (1) | KR20140067173A (en) |
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AU (1) | AU2012348311B2 (en) |
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CA (2) | CA2858601C (en) |
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ES (1) | ES2669068T3 (en) |
IL (1) | IL232323A (en) |
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MY (1) | MY179044A (en) |
RU (1) | RU2545859C1 (en) |
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Cited By (4)
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WO2014106803A1 (en) * | 2013-01-07 | 2014-07-10 | Eliaz, Isaac | Galectin-3 plasmapheresis therapy |
WO2015099826A1 (en) | 2013-12-27 | 2015-07-02 | Isaac Eliaz | Plasmapheresis device |
US9549953B2 (en) | 2011-12-08 | 2017-01-24 | Eliaz Therapeutics, Inc. | Galectin-3 plasmapheresis therapy |
EP3274010A4 (en) * | 2015-03-27 | 2018-09-19 | Eliaz Therapeutics, Inc. | Patient selective apheresis |
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CN106370835A (en) * | 2016-08-29 | 2017-02-01 | 中山大学孙逸仙纪念医院 | Method for performing auxiliary diagnosis on psoriasis through immunohistochemical staining detection galectin-3 of in-vitro skin sample |
CN106645752B (en) * | 2016-12-27 | 2018-02-16 | 中南大学湘雅医院 | Galectin-10 and application of specific antibody thereof in preparation of kit for detecting nasopharyngeal carcinoma |
WO2020160156A2 (en) | 2019-01-30 | 2020-08-06 | Immutics, Inc. | Anti-gal3 antibodies and uses thereof |
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US20160317734A1 (en) * | 2013-12-27 | 2016-11-03 | Eliaz Therapeutics, Inc. | Plasmapheresis device |
CN105828900A (en) * | 2013-12-27 | 2016-08-03 | 艾莱兹疗法股份有限公司 | Plasmapheresis device |
WO2015099826A1 (en) | 2013-12-27 | 2015-07-02 | Isaac Eliaz | Plasmapheresis device |
AU2014370393B2 (en) * | 2013-12-27 | 2018-09-20 | Eliaz Therapeutics, Inc. | Plasmapheresis device |
RU2680677C2 (en) * | 2013-12-27 | 2019-02-25 | Элиаз Терапьютикс, Инк. | Plasmapheresis device |
US10953148B2 (en) * | 2013-12-27 | 2021-03-23 | Eliaz Therapeutics, Inc. | Plasmapheresis device |
CN112691252A (en) * | 2013-12-27 | 2021-04-23 | 艾莱兹疗法股份有限公司 | Plasma separation device |
US20210138143A1 (en) * | 2013-12-27 | 2021-05-13 | Eliaz Therapeutics, Inc. | Plasmapheresis device |
EP3274010A4 (en) * | 2015-03-27 | 2018-09-19 | Eliaz Therapeutics, Inc. | Patient selective apheresis |
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ZA201504725B (en) | 2018-05-30 |
BR112014012823A2 (en) | 2015-09-29 |
IL232323A (en) | 2015-08-31 |
IL232323A0 (en) | 2014-06-30 |
CA3036327A1 (en) | 2013-06-13 |
JP2015507483A (en) | 2015-03-12 |
RU2545859C1 (en) | 2015-04-10 |
AU2012348311A1 (en) | 2014-05-22 |
MX355213B (en) | 2018-04-10 |
CA3036327C (en) | 2021-10-19 |
MX2014006620A (en) | 2015-03-05 |
CN104011544A (en) | 2014-08-27 |
CA2858601C (en) | 2020-11-17 |
EP2788761A4 (en) | 2015-07-15 |
MY179044A (en) | 2020-10-26 |
NZ624601A (en) | 2014-09-26 |
ES2669068T3 (en) | 2018-05-23 |
CN104011544B (en) | 2018-06-05 |
EP2788761B1 (en) | 2018-02-28 |
ZA201402824B (en) | 2016-09-28 |
DK2788761T3 (en) | 2018-04-30 |
EP2788761A1 (en) | 2014-10-15 |
AU2012348311B2 (en) | 2014-06-12 |
EP3151009A1 (en) | 2017-04-05 |
KR20140067173A (en) | 2014-06-03 |
CA2858601A1 (en) | 2013-06-13 |
JP6276701B2 (en) | 2018-02-07 |
JP2016175925A (en) | 2016-10-06 |
JP6248138B2 (en) | 2017-12-13 |
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