WO2004039403A1 - 角膜障害治療剤 - Google Patents
角膜障害治療剤 Download PDFInfo
- Publication number
- WO2004039403A1 WO2004039403A1 PCT/JP2003/013503 JP0313503W WO2004039403A1 WO 2004039403 A1 WO2004039403 A1 WO 2004039403A1 JP 0313503 W JP0313503 W JP 0313503W WO 2004039403 A1 WO2004039403 A1 WO 2004039403A1
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- WIPO (PCT)
- Prior art keywords
- corneal
- somatostatin receptor
- receptor agonist
- somatostatin
- cells
- Prior art date
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- A61K31/44—Non condensed pyridines; Hydrogenated derivatives thereof
- A61K31/445—Non condensed piperidines, e.g. piperocaine
- A61K31/4523—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems
- A61K31/4545—Non condensed piperidines, e.g. piperocaine containing further heterocyclic ring systems containing a six-membered ring with nitrogen as a ring hetero atom, e.g. pipamperone, anabasine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/17—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- A61K38/22—Hormones
- A61K38/31—Somatostatins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/496—Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P27/00—Drugs for disorders of the senses
- A61P27/02—Ophthalmic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
Definitions
- the present invention relates to a corneal nerve axon extension promoter containing a somatostatin receptor agonist, a recovery and improvement of corneal sensation by corneal nerve axon extension, and a therapeutic agent for dry eye and corneal epithelial defect.
- corneal surgery such as laser refractive keratotomy (PRK), laser keratoplasty (LAS IK), and corneal transplantation
- PRK laser refractive keratotomy
- LAS IK laser keratoplasty
- corneal transplantation the corneal nerve is severed, so the corneal sensory function is usually about 3 weeks to 1 year. It is said that the symptom of the decline of the disease occurs. Due to this decrease in corneal perception, it has become a problem that the number of blinks decreases in patients after corneal surgery and symptoms of dry eye are observed. In dry eye patients, a decrease in tear function leads to a decrease in corneal perception, and this decrease in corneal sensitivity further circulates with a decrease in tear function, which further worsens corneal surface symptoms. Has become. However, at present, the recovery of corneal sensation after corneal surgery is left to spontaneous recovery, and no active treatment for restoring corneal sensation has been performed in dry eye treatment.
- PRK laser refractive keratotomy
- LAS IK laser
- somatostatin is a peptide isolated from the hypothalamus in 1973 as a somatotropin release inhibitory factor (SRIF). Somatostatin receptors have been found and are named SSTR1, SSTR2, SSTR3, SSTR4 and SSTR5, respectively. Somatostatin is widely distributed in nerve tissue as a growth hormone release inhibitor, and it has been confirmed that somatostatin receptors are present in the iris, ciliary body, and retina also in eye tissue (Mori, M., et al., Neuroscience Letters, 1999, Vol. 223, No. 3, p. 185—188).
- somatostatin has a variety of functions in the body, including the endocrine system, exocrine system, and nervous system, and is involved in, for example, neurotransmission and regulation of nerve cell growth. It is reported that S has an action to promote cord extension (Ferriero, MD et., Developmental Brain Research, 1994, 80, 80, p. 13-18).
- Known ophthalmic diseases involving somatostatin include glaucoma, corneal inflammation, ulceris, retinitis, cataract, conjunctivitis, etc. (Table 2002—515992, corresponding: WO 98/58646) , EP 101 9050).
- octreotide known as a somatostatin receptor agonist
- somatostatin receptor agonist is a gastrointestinal hormone-producing tumor and acromegaly. It is marketed as a treatment for pituitary gigantism.
- lanreotide Japanese Patent Laid-Open No.
- R 11 is a group selected from a halogen atom, a cyano group, a carboxy group, a (C r C 6 ) alkyl group, and a (C Factory C 6 ) alkoxy group;
- X is a _CH 2 _ group , - S0 2 - group, one CO- group, or a direct bond; and
- Y is Soma CH group or represented a is] like nitrogen atom Tosutachinago - be sampled (JP 200 1 - 1 1476 1 , Correspondence: EP 1086947A1),
- Somatostatin agonist represented by, for example, (Japanese Patent Application Laid-Open No. 2000-33498, corresponding: US201 / 047030),
- SSTR 2 such as 5-guanidino-1 2 ((2- (toluene-1-4-sulfonyl) -11,2,3,4-tetrahydro-isoquinoline_3-carboe) -amino] -pentanoic acid methyl ester Somatostatin agonists (US 2000/9 1 1 2 5 A 1),
- a somatostatin analog (WO 2002/10 1992), an imidazolyl derivative that induces an agonist effect from one or more subtypes of somatostatin receptor (WO 99b4401), a somatostatin receptor affinity A hydantoin derivative (WO 200 1/85 7 18), a 4-aminobiperidine derivative (WO 200 1 Z44 191) useful as a ligand for somatostatin receptor,
- Somatostatin ⁇ Gore varnish preparative represented by like (US 6387932), for example, P he Shiku port (C ys- D_T rp - L ys - C ys) - Th r SS TR 1
- Agonisu preparative represented by NH 2 (WO 2000 / 75 1 86), It has a selective SSTR 4 binding effect and is expected to have a glaucoma treatment effect.
- Soma DOO statin analog represented wherein the Ci one C 4 alkyl, indicating, for example Adamanchiru] in (WO 2 00 0/1 0 5 8 9),
- Somatostatin agonists such as those shown in Table 2 (Tables 2001-525793 (corresponding to WO 97/43278, EP 912551)), for example, cyclo [Tyr-D-Trp-Lys-Val-P He (4— (3-Methoxyphenyl) imidazole) —Cyclic somatostatin analog represented by G 1 y] etc. (Table 2002- 5 1 8409 (corresponding: WO 99/65942, EP 1 086 1 3 1) Ergoline derivative, a selective agonist of SSTR1 useful in the treatment of anxiety, depression, etc.
- Amine derivative having a unique chemical structure characterized by the substitution of a nitrogen atom at position 2 Japanese Patent Laid-Open No. 2002-348287) and has an affinity and selectivity for one somatostatin receptor Pyridothienozazepine (Table 200) 2-54 1 260, corresponding: WO 2000/6 1 587).
- the presence of somatostatin receptors in the cornea has not yet been reported.
- most of the nerves derived from the first branch (ophthalmic branch) that branches in the trigeminal ganglion are distributed in the cornea, and are deeply involved in the recovery of postoperative corneal perception and repair of the corneal epithelium. (Ke-PingXu et al. Cornea, 1995, Vol. 15, p. 235—239).
- the present invention relates to keratoplasty in patients with reduced corneal perception after corneal surgery such as laser refractive keratotomy (PRK), laser keratoplasty (LASIK; LAS IK), and corneal transplantation, and in dry eye patients. It is intended to provide a medicament for restoring a sensory function and for treating a disorder of the corneal epithelium caused by a decrease in the corneal sensory function.
- PRK laser refractive keratotomy
- LASIK laser keratoplasty
- LASIK laser keratoplasty
- corneal transplantation corneal transplantation
- the present inventors have studied for the purpose of providing a new type of medicament for improving corneal sensitivity after corneal surgery and improving symptoms of dry eye, and found that somatostatin was replaced by trigeminal nerve (hereinafter referred to as corneal nerve). For the first time, we found that it had an axonal outgrowth-promoting effect and that somatostatin receptor was present in the trigeminal nerve. Based on these findings, we conducted further research and decided to use a somatostatin receptor agonist as a cornea. The present invention has been completed for use as a medicament for recovery of perception.
- a corneal nerve axon extension promoter containing a somatostatin receptor agonist (2) a corneal sensory recovery agent containing a somatostatin receptor agonist
- a pharmaceutical composition for treating dry eye comprising a somatostatin receptor agonist
- a pharmaceutical composition for treating corneal epithelial defect comprising a somatostatin receptor agonist
- corneal sensation recovery method by administering an effective amount of a somatostatin receptor agonist to a disease subject in need of corneal sensation recovery
- somatostatin receptor agonists include those that act on somatostatin receptor and exert the same action as somatostatin in addition to somatostatin itself, and are called somatostatin agonists, somatostatin analogs, and somatostatin analogs. Include what is.
- somatostatin receptor agonist in addition to somatostatin itself, if it acts on the somatostatin receptor and exhibits the same action as somatostatin, Any of the compounds can be advantageously used.
- Such compounds include, for example, otatreotide, which is known as a somatostatin receptor agonist
- somatostatin-like cyclic peptide for example, a somatostatin-like cyclic peptide such as AN-238, and Table 2002—5 1 8339 (corresponding: US 605 1 554, US 63)
- the medicament containing the somatostatin receptor agonist of the present invention may be a corneal nerve of a mammal (for example, a human, a rat, a mouse, a heron, a penis, a stab, a dog, a cat, etc.) that is damaged, cut, or corneal epithelium is damaged. It is useful for restoring reduced corneal sensory function in defective corneas. For example, as a therapeutic agent for the recovery of decreased corneal sensitivity after surgery such as PRK, LAS IK, or corneal transplantation, or as a therapeutic agent for patients with dry eye with reduced corneal sensitivity, and with decreased corneal sensory function It is useful as a therapeutic agent for corneal epithelial disorders. Further, as the somatostatin receptor agonist, agonists (agonists) that specifically act on the somatostatin receptor subtype SSTR2 and / or SSTR4 are more preferable.
- the medicament of the present invention is administered systemically or locally.
- parenteral administration such as intravenous injection, subcutaneous injection, and intramuscular injection is also used. Topically, it is administered to the eye.
- Examples of the pharmaceutical form of the present invention include solid preparations such as powders, granules, tablets, capsules and suppositories, and liquid preparations such as syrups, injections and eye drops.
- solid preparations such as powders, granules, tablets, capsules and suppositories
- liquid preparations such as syrups, injections and eye drops.
- excipients lactose, sucrose, pudose, starch, microcrystalline cellulose, etc.
- lubricants magnesium stearate, talc, stearic acid, calcium stearate, etc.
- disintegrants Starch, carmellose sodium, calcium carbonate, etc.
- binders starch paste solution, hydroxypropyl cellulose solution, carmellose solution, gum arabic solution, gelatin solution, sodium alginate solution, etc.
- Manufacture can do.
- suitable coating agents eg, gelatin, saccharose, gum arabic, carnapalow
- enteric coating agents eg, cellulose acetate phthalate, methacrylic acid copolymer, hydroxypropylcellulose phthalate
- Carboxymethylethylcellulose etc.
- excipients such as magnesium stearate, calcium stearate, talc, and light caffeic anhydride to improve fluidity and lubricity, and pressurized fluidity.
- disintegrants such as magnesium stearate, calcium stearate, talc, and light caffeic anhydride
- they are evenly mixed or granulated or granulated and coated with an appropriate coating agent.
- glycerin or sorbitol to a capsule base (such as gelatin) to form an encapsulated base with increased plasticity.
- the capsule may be an ordinary coated capsule, an enteric coated capsule, a gastric resistant capsule, or a controlled release capsule.
- an enteric capsule a compound coated with an enteric coating agent or a compound obtained by adding the above-mentioned appropriate excipient to a compound is filled in a usual capsule, or the capsule itself is coated with an enteric coating agent, or It can be molded using a soluble polymer as a base.
- a suppository base eg, cacao butter, McGall
- cacao butter e.g. cacao butter, McGall
- a stabilizer eg, sodium edetate
- a suspending agent eg, gum arabic, carmellose
- a flavoring agent eg, simple syrup, glucose
- a pharmaceutically acceptable additive such as an isotonic agent (sodium chloride, potassium chloride, glycerin, mannitol, sorbitol, boric acid, boric acid, borax, glucose) , Propylene glycol ), Buffers (phosphate buffer, acetate buffer, borate buffer, carbonate buffer, citrate buffer, tris buffer, glutamate buffer, epsilon aminocaproate buffer, etc.) ), Preservatives (paraoxybenzoates, chlorobutanol, benzyl alcohol, benzalco-chloride, sodium dehydroacetate, sodium edetate, boric acid, borax, etc.), thickeners (hydroxche Tylcellulose, hydroxypropinoresenololose, polyvinylinoleanolone, polyethylene glycol, etc., stabilizers (sodium bisulfite, sodium thiosulfate, sodium e
- isotonic agent sodium chloride, potassium chloride,
- the amount of the additives in the above syrups, injections and eye drops varies depending on the type and use of the additives to be added, but it is sufficient to add a concentration that can achieve the purpose of the additives. Usually, about 0.5 to about 5. OwZv% is added so that the osmotic pressure is about 229 to about 343 mO sm.
- the buffer is about 0.01 to about 2.0 /%, the viscosity is about 0.01 to about 1.Ow / v%, the stabilizer is about 0.001 to about 1. Add so as to be about 0 w / v%.
- the pH adjuster is appropriately added, and is usually added so that the pH may be about 3 to about 9, preferably about 4 to about 8.
- the concentration of the somatostatin receptor agonist is usually lower than about 0.0005 wZv%, about 0.001 w / v%, about 0.005 w / v%, The upper limit is adjusted to about 1.0%, about 0.5w / v%, about 0.1wZv%, about 0.05w / v%, about 0.01w / v%.
- the dose of the somatostatin receptor agonist in the present invention varies depending on the target disease, condition, administration subject, administration method, and the like.For example, when topically used in an adult eye as an agent for restoring corneal sensation after PRK surgery for example, the eye drops containing about 0.01 w / v% somatostatin are preferably applied about 20 to about 50 once and instilled several times a day.
- bases and amino acids are indicated by abbreviations,
- DNA Deoxyribonucleic acid
- GAPDH glyceraldehyde-3-phosphate-dehydrogenase NGF: nerve growth factor
- RNA ribonucleic acid
- mRNA Messenger RNA
- a 1 a Aranine
- FIG. 1 shows the expression of somatostatin receptor subtypes (SSTR2 and SSTR4) in the egret trigeminal nerve and retina.
- Figure 2 is a phase contrast microscopy image showing cultured porch egret trigeminal cells and axonal outgrowth from the cells.
- A indicates the cells in the non-added group
- B indicates the cells in the 10 ⁇ somatostatin added group
- C indicates the cells in the 10 ⁇ somatostatin added group
- D indicates the cells in the NGF added group
- ⁇ indicates the cells in the somatostatin + NGF added group.
- FIG. 3 is a graph showing the transition of corneal perception after cutting the corneal nerve of the egret.
- FIG. 4 is a fluorescence microscopic image showing the cultured trident trigeminal nerve cells and axon extension from the cells.
- ⁇ indicates cells in the control group
- B indicates cells in the group to which 10 ⁇ otatretide was added.
- Figure 5 shows the ratio of neurite-forming cells to the total number of cells in the same test as in Figure 4.
- FIG. 6 is a fluorescence microscopy image showing cultured porcupine trigeminal nerve cells and axonal outgrowth from the cells.
- ⁇ indicates the cells in the group without addition
- B indicates the cells in the group with 1 ⁇ compound 1 added
- C indicates the cells in the group with 0.1 ⁇ compound 2 added.
- Test Example 1 Expression of somatostatin receptor in the egret trigeminal nerve
- the primers used were the somatostatin receptor SSTR2 gene-specific primer (sequence table: SEQ ID NO: 1) and the SSTR4 gene-specific primer (sequence table: SEQ ID NO: 2) described in Table 1 . Retina and GAPDH were used as positive controls for expression.
- Test Example 2 Promoting neural axon outgrowth in cultured heron trigeminal nerve cells (In vitro experiment) ''
- Japanese white ⁇ heron (2-3 days after birth) purchased from Fukusaki Rabbit Union was used.
- test substances As test substances, somatostatin (CALBI0CHEM, Lot B33795) and NGF (NGF-7S, Sigma) were used. The test substance was dissolved in phosphate buffer (PBS) so that ⁇ ⁇ ⁇ ⁇ somatostatin and 20 / z g / mL NGF-7S were obtained. The prepared reagents were stored at 80 ° C and dissolved before use.
- PBS phosphate buffer
- Trigeminal nerve cells were isolated with reference to the report of Chan et al. (Kuan Y. Chan and Richard H. Haschke. Exp. Eye Res. 41: 687-699, 1985). That is, under ether anesthesia, the perforated egret was perfused with physiological saline, the trigeminal ganglion was cut out, and the trigeminal ganglion was dispersed using a nerve dispersion (Sumitomo Bei-Cryt) and coated with polylysine / laminin. The cells were seeded on a 24-well plate (Sumitomo Bei-Client). The number of cells was about 3000 cells / well, and the culture conditions were 37 in 5% CO 2 and 95% air.
- FIG. 2 shows a phase-contrast microscope image of the cultured egret trigeminal nerve cells.
- A cells of group I
- B cells of group ⁇
- C cells of group ⁇
- D cells of group IV
- E cells of group V. Each cell in the group is shown.
- Test example 3 ⁇ ⁇ Changes in corneal sensory function after transection of the corneal nerve (In vivo test)
- test substance Somatostatin (CALBI0CHEM, Lot B33795) and NGF (NGF-7S, Sigma) were used as test substances.
- the test substance was dissolved in the following vehicle and used for the test.
- the cornea was labeled with a 6 mm diameter trepan, and the upper 180 degree cornea was sutured with a 8.0 nylon suture while making a circular incision.
- test substance was instilled four times a day, and at the same time, Tarivid ophthamic solution (Santen) was instilled.
- Animals were housed in a breeding room set at room temperature of 23 ⁇ 3 ° C, humidity of 55 ⁇ 10%, and illuminated for 12 hours (8:00 on, 22:00 off), and housed in a cage per cage.
- Corneal perception was measured using a Cochet-Bonnet corneal perimeter (manufactured by LUNEAU) on the third day of surgery and at 1, 2, 3, 4, and 6 weeks. The corneal perception (%) was calculated assuming that the perception before surgery of each individual was 100%.
- Figure 3 shows the transition of corneal perception over time after cutting the corneal nerve. Corneal perception decreased sharply in all groups from 3 days to 1 week after keratotomy, but a gradual recovery of corneal perception was observed after the second cycle. Three and four weeks later, a significant corneal sensation recovery effect was observed in the somatostatin-administered group compared to the vehicle-administered group ( ⁇ ⁇ 0.05, Dunnett test).
- Test Example 4 Effect of octreotide on axonal outgrowth of cultured heron trigeminal nerve cells (In vitro test)
- Trigeminal nerve cells were isolated by referring to the report of Chan et al. (Kuan Y. Chan and Richard H. Haschke. Exp. Eye Res. 41: 687-699, 1985). That is, under cardiac anesthesia under ether anesthesia, the trigeminal ganglion is cut out after perfusion with physiological saline, the trigeminal ganglion is dispersed using a nerve dispersion (Sumitomo Bakelite), and the number of cells is counted. Cells were seeded on 8 ⁇ L culture slides (BECT0N DICKINSON) coated with ricin. The number of cells was about 3 ⁇ 10 3 cells / well, and the culture conditions were 37% in 5% CO 2 and 95% air.
- the axon extension length and cell body diameter of cells are measured using image analysis software, and cells with axons longer than twice the cell body diameter are regarded as neurite-forming cells and expressed as a percentage of the total cell number. The ratio (%) was calculated.
- Figure 4 shows the effects of otatreotide on neurite and axonal outgrowth in cultured egret trigeminal neurons.
- A shows control perforated trigeminal neurons cultured in a culture medium without octreotide for 24 hours
- (B) shows cells cultured for 24 hours in a culture medium supplemented with a final concentration of 10 ⁇ ⁇ of otatreotide. Show. Compared with the control cell group, it was confirmed that neurite-forming cells increased in the group supplemented with otatreotide.
- FIG. 5 shows the ratio (%) of the neurite-forming cells to the total cell number.
- otatreotide an analog of somatostatin, promotes axonal outgrowth of trigeminal neurons.
- Test Example 5 Effect of somatostatin receptor agonist on axonal outgrowth of cultured heron trigeminal nerve cells (In Vitro experiment)
- somatostatin receptor agonist As a test substance, somatostatin receptor agonist, SSTR2-specific agonist, 6-amino-2- (3- (1H-indole-3-yl) -2-((4-(2- Oxo-1,2,3-dihydrobenzoimidazole-11-inole) piperidine-11-carbonyl) amino () propionylamino) hexanoic acid t_butyl ester (hereinafter referred to as compound 1), and , SSTR4 specific agonist, 1- (3- (N- (5-bromopyridine-12-yl) -N- (3,4-dichloromethylbenzyl) amino) propyl) 13_ (3 — (1H-midazol-4-yl) propyl) thiopurea (hereinafter referred to as compound 2) was used.
- Compound 1 is a compound of Example 4 in WO 2001/49192 (WO 98/444922) and was synthesized according to the method of Example 2.
- Compound 2 was synthesized according to the description in Example 15 of WO 2001 / 52,793 (WO97 / 432,788).
- the heron trigeminal nerve cells were isolated by referring to the report of Chan et al. (Kuan Y. Chan and Richard H. Haschke. Exp. Eye Res. 41: 687-699, 1985). That is, under ether anesthesia, after performing cardiac perfusion with physiological saline, the trigeminal ganglion is taken out, and the trigeminal ganglion is dispersed using a nerve dispersion (Sumitomo Bei-Client). Trigeminal nerve cells were prepared.
- GIBC0 B27 Supplement
- GIBCO L-Glutamin
- % C02 95% air, 100% humidity, 37 ° C, 48 hours.
- Cells are seeded on poly-lysine-coated 8-well culture slides (BECT0N DICKINSON) at approximately 3 x 10 3 cells / well, or poly-lysine-coated 96-well plates at 3 x 10 3 cells / well and tested.
- Compound 1 final concentration 1 ⁇
- Compound 2 final concentration 0.1 ⁇
- Cell staining After completion of culture for 48 hours, cells seeded on a 96-well plate are fixed with 4 ° / 0 paraformaldehyde, and anti-specifically recognize neuronal filaments constituting neuronal cell bodies and neurites. Neurofilament of cells was labeled using Neurofilament 200 antibody (Sigma) and HRP-conjugated goat anti-mouse IgG antibody (Wako Pure Chemical Industries, Ltd.). 0.02% of 50 labeled on the cell H 2 0 2 (Nacalai Tesque) and 0. 2 ° /.
- FIG. 6 shows a fluorescence microscopic image of the cultured egret trigeminal nerve cells.
- A shows cells of a control group cultured in a culture solution without somatostatin receptor agonist
- B shows cells of a group to which compound 1 was added at a final concentration of 1 ⁇
- C shows cells of compound 2 at a final concentration of 0 ⁇ m.
- the cells in the group to which 1 ⁇ was added are shown.
- Neurite-forming cells are increased in cells in the group to which compound 1 or compound 2 is added, compared to cells in the control group It was confirmed that.
- FIG. 7 is a graph showing the absorbance indicating the amount of neurofilament of the cells in each addition group.
- the absorbance of the control group was 0.798, and the absorbance of the compound 1 added group and the compound 2 added group was 0.876 and 0.850, respectively. That is, the amount of neurofilament was increased by the addition of the somatostatin receptor agonist, which was considered to reflect the addition of neurite-forming cells. From the above, it was found that the somatostatin receptor agonists Compound 1 and Compound 2 have an effect of promoting axonal outgrowth of trigeminal nerve cells.
- tablets are formed in a conventional manner. Tablets may be coated with commonly used enteric coating agents (such as hydroxypropyl phthalate or pillmethylcellulose) and sugar-coated films (such as ethyl cellulose), if necessary.
- enteric coating agents such as hydroxypropyl phthalate or pillmethylcellulose
- sugar-coated films such as ethyl cellulose
- Example 3 Injection Compound 1 750 mg
- a total of 100 mL or more of the components is aseptically mixed by an ordinary method to prepare an injection.
- the medicament containing the somatostatin receptor agonist of the present invention has a trigeminal nerve cell axon extension promoting action and a corneal sensory function restoring action, it improves corneal sensory function deterioration and corneal sensory function associated with damage to corneal nerves and the like. It is useful for improving the dry eye symptoms associated with the decrease.
- the application of somatostatin receptor agonists is associated with decreased corneal perception after cataract surgery and LASIK surgery, corneal neuropathy such as neuropathic keratopathy, corneal ulcer, and diabetic keratopathy. It can be expected to reduce corneal perception and improve dry eye symptoms.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US10/533,115 US20060234922A1 (en) | 2002-10-31 | 2003-10-22 | Remedy for corneal failure |
EP03758790A EP1566184A4 (en) | 2002-10-31 | 2003-10-22 | REMEDY FOR THE TREATMENT OF CORNEAL DISEASE |
AU2003275597A AU2003275597A1 (en) | 2002-10-31 | 2003-10-22 | Remedy for corneal failure |
JP2005501843A JP4603976B2 (ja) | 2002-10-31 | 2003-10-22 | 角膜障害治療剤 |
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JP2002318881 | 2002-10-31 | ||
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Publication number | Priority date | Publication date | Assignee | Title |
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EP1752456A1 (en) * | 2004-06-03 | 2007-02-14 | Senju Pharmaceutical Co., Ltd. | Corneal perception recovery drug containing amide compound |
WO2008133198A1 (ja) | 2007-04-20 | 2008-11-06 | Senju Pharmaceutical Co., Ltd. | 神経突起形成促進剤 |
JP2009515921A (ja) * | 2005-11-17 | 2009-04-16 | ウーアザファルマ アールツナイミッテル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント カンパニー カーゲー | デクスパンテノール、カルシウムイオン、およびリン酸塩を含まない薬学的組成物、ならびにカルシウムキレート剤および眼科的に適合性の粘性調節剤の使用 |
CN108379556A (zh) * | 2018-05-18 | 2018-08-10 | 吉林大学 | 骨形成蛋白-4在治疗角膜病的药物中的用途 |
Families Citing this family (1)
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EP2053919B1 (en) * | 2006-08-23 | 2013-12-25 | The University Of Montana | Method of reducing neuronal cell damage |
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- 2003-10-22 WO PCT/JP2003/013503 patent/WO2004039403A1/ja active Application Filing
- 2003-10-22 EP EP03758790A patent/EP1566184A4/en not_active Withdrawn
- 2003-10-22 JP JP2005501843A patent/JP4603976B2/ja not_active Expired - Fee Related
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Cited By (9)
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EP1752456A1 (en) * | 2004-06-03 | 2007-02-14 | Senju Pharmaceutical Co., Ltd. | Corneal perception recovery drug containing amide compound |
EP1752456A4 (en) * | 2004-06-03 | 2008-08-27 | Senju Pharma Co | MEDICAMENT FOR RESTORING CORNEAL PERCEPTION CONTAINING AN AMIDE COMPOUND |
US7485654B2 (en) | 2004-06-03 | 2009-02-03 | Senju Pharmaceutical Co., Ltd. | Corneal perception recovery drug containing amide compound |
US7956072B2 (en) | 2004-06-03 | 2011-06-07 | Senju Pharmaceutical Co., Ltd. | Agent for repairing corneal sensitivity containing amide compound |
JP2009515921A (ja) * | 2005-11-17 | 2009-04-16 | ウーアザファルマ アールツナイミッテル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント カンパニー カーゲー | デクスパンテノール、カルシウムイオン、およびリン酸塩を含まない薬学的組成物、ならびにカルシウムキレート剤および眼科的に適合性の粘性調節剤の使用 |
WO2008133198A1 (ja) | 2007-04-20 | 2008-11-06 | Senju Pharmaceutical Co., Ltd. | 神経突起形成促進剤 |
JP5179477B2 (ja) * | 2007-04-20 | 2013-04-10 | 千寿製薬株式会社 | 神経突起形成促進剤 |
US8637544B2 (en) | 2007-04-20 | 2014-01-28 | Senju Pharmaceutical Co., Ltd. | Neurite formation promoter |
CN108379556A (zh) * | 2018-05-18 | 2018-08-10 | 吉林大学 | 骨形成蛋白-4在治疗角膜病的药物中的用途 |
Also Published As
Publication number | Publication date |
---|---|
US20060234922A1 (en) | 2006-10-19 |
EP1566184A4 (en) | 2006-07-05 |
KR20050059319A (ko) | 2005-06-17 |
JPWO2004039403A1 (ja) | 2006-02-23 |
EP1566184A1 (en) | 2005-08-24 |
JP4603976B2 (ja) | 2010-12-22 |
AU2003275597A1 (en) | 2004-05-25 |
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