WO1999055361A1 - Inhibiteurs de neovascularisation - Google Patents
Inhibiteurs de neovascularisation Download PDFInfo
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- WO1999055361A1 WO1999055361A1 PCT/JP1999/001834 JP9901834W WO9955361A1 WO 1999055361 A1 WO1999055361 A1 WO 1999055361A1 JP 9901834 W JP9901834 W JP 9901834W WO 9955361 A1 WO9955361 A1 WO 9955361A1
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- hgf
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- 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
- A61K38/18—Growth factors; Growth regulators
- A61K38/1833—Hepatocyte growth factor; Scatter factor; Tumor cytotoxic factor II
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P1/00—Drugs for disorders of the alimentary tract or the digestive system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/475—Growth factors; Growth regulators
- C07K14/4753—Hepatocyte growth factor; Scatter factor; Tumor cytotoxic factor II
Definitions
- the present invention relates to an angiogenesis inhibitor. More specifically, the present invention relates to an angiogenesis inhibitor comprising, as an active ingredient, a protein containing a specific region of ⁇ chain of Hepa tocyte growt hfactor (hereinafter, simply referred to as HGF).
- HGF Hepa tocyte growt hfactor
- the angiogenesis inhibitor of the present invention is based on its angiogenesis inhibitory action, and is based on its angiogenesis inhibitory action. It is useful as an agent for preventing or treating excessive scar formation during wound healing.
- Angiogenesis is a phenomenon in which vascular endothelial cells mainly in venules react to form a new vascular network in response to some kind of stimulus. This phenomenon is essential for maintaining the metabolism of tissues and maintaining the functional homeostasis of the body under normal conditions of the living body, and is generally the process of healing the injury, the development of the lungs in the fetus, the luteal body, It is observed in the formation of the formation.
- abnormal angiogenesis has traditionally included inflammatory diseases. It is known to be related to various diseases. For example, diseases such as proliferative diabetes mellitus, psoriasis vulgaris, rheumatoid arthritis, glycemic retinopathy, senile macular degeneration, excessive scar formation during wound healing, and metastasis or recurrence of solid tumors are caused by vascular, In particular, it has been reported that it is caused by abnormal proliferation of peripheral capillaries (Polverini PJ., Crit Rev Oral Biol Med., 1995, 6 (3), pp. 230-247, Review: Forkman J., ature Med). , 1995, 1 (1), pp.27-31).
- angiogenesis inhibitors have been developed as prophylactic or therapeutic agents against these diseases, which contain a substance having an angiogenesis inhibitory effect as an active ingredient.
- An object of the present invention is to provide a novel angiogenesis inhibitory factor. Further, another object of the present invention is to provide an angiogenesis inhibitor useful for prevention and treatment of various diseases caused by abnormal growth of blood vessels as described above.
- A is a chromatogram obtained by subjecting an elastase-treated product of HGF to reverse-phase high-performance liquid chromatography (reverse-phase HPLC) (C4)
- B is a reverse-phase chromatogram. Electrophoresis of each peak fraction of phase HPLC (reducing conditions, It is a figure which shows the result given to (reduction condition).
- FIG. 2 is a diagram schematically showing the structures of the ⁇ and 3 chains of HGF, and the structure of the PyrGlu 32 to Val region (HGFZNK 4) of the HGF of the present invention, which is cut out by elastase treatment. .
- FIG. 3 A and B show the dose-dependent binding of 125 I-HGF and 125 I-HGF / NK4 to the plasma membrane of rat liver, respectively.
- the insets in FIGS. A and B are diagrams showing the binding of 125 1 -HGF and 125 I-HGFZNK4 to the plasma membrane of the rat liver, respectively, using a scattered plot.
- C shows the results of examining the binding of unlabeled HGF or unlabeled HGF / NK4 to rat liver plasma membrane in the presence of 125 I-HGF (see Example 2).
- FIG. 4 is a diagram showing the presence or absence of mitogenic activity of HGF and HGF_NK4 (A), and the antagonistic effect of HGFZNK4 on the mitogenic activity of HGF (B). Mitogen activity was determined by measuring DNA synthesis in rat primary hepatocytes. Specifically, Figure A shows hepatocyte DNA synthesis in the presence of HGF or HGF-NK4, and Figure B shows 60 pM HGF or 1.5 nM epidermal growth factor (EGF ) In the presence of FIG. 2 is a view showing the effect of HGFZNK 4 on DNA synthesis in cells (see Example 3).
- FIG. 5 shows the results of examining the inhibitory effect of HGF / NK4 on the proliferation of human lung microvascular endothelial cells in the presence or absence (None) of bFGF, HGF or VEGF. (See Example 7).
- FIG. 6 is a diagram showing the results of examining the inhibitory effect of HGFZNK4 on the proliferation of human skin microvascular endothelial cells in the presence or absence (None) of bFGF, HGF or VEGF (Example). 7).
- FIG. 9 is a view showing the results of examination in the presence of fetal serum (FBS), 5% FBS + b FGF, 5% FBS + VEGF or 5% FBS + HGF (see Example 9A).
- FBS fetal serum
- FBS + b FGF fetal serum + b FGF
- FBS + VEGF 5% FBS + VEGF
- FIG. 9 is a view showing the results of examination in the presence of fetal serum (FBS), 1% FBS + b FGF, 1% FBS + VEGF, or 1% FBS + HGF (see Example 9B).
- FBS fetal serum
- FIG. 9 is a photograph, instead of a drawing, showing the result of examining the inhibitory effect of HGFZNK 4 on angiogenesis in the chorioallantoic membrane of chicken embryo by observing with a stereoscopic microscope.
- FIG. 10 is a photograph, instead of a drawing, showing the result of examining the effect of HGFZNK4 on suppressing tumor angiogenesis by immunohistochemistry.
- FIG. 11 is a drawing showing that HGF NK4 has an effect of suppressing the growth of Lewis lung cancer cells.
- A is a diagram showing the volume of the transplanted cancer over time, and B is a diagram showing the weight of the transplanted cancer on the 28th day.
- A is a drawing showing that HGF / NK4 has an effect of suppressing the metastasis of Lewis lung cancer cells (see Reference Example 1).
- B is a photograph instead of a drawing showing cancer tissue that has metastasized to the lungs. In the control group injected with saline, there are clearly multiple lung metastases, whereas HGF / NK4 administration group shows almost no lung metastases.
- FIG. 13 is a drawing showing that HGF / NK4 has an effect of inhibiting the growth (A) and metastasis (B) of Jyg breast cancer cells.
- A is a diagram in which the volume of the transplanted cancer is tracked over time
- B is a diagram showing the number of metastatic foci. Disclosure of the invention The present inventors have been conducting day and night studies in search of a novel angiogenesis inhibitor based on the above-mentioned object. The present inventors have found that the present invention has an effect of significantly suppressing the renewal of the present invention, and have led to the development of the present invention.
- HGF is a polybeptitol originally found by the present inventors in 1984 as a novel growth factor for hepatic parenchymal cells (Nakamura T., et al., Biochem Biophys Res. Co., 1984, 122, pp. 1450-1459). According to subsequent studies by the present inventors, HGF is a heterodimer consisting of an ⁇ -chain having a molecular weight of about 69 kDa and a chain having a molecular weight of about 34 kDa, and its structure is changed to an ⁇ -chain. It has a unique domain structure with an N-terminal hairpin domain and four kring domains and a serine proteinase-like domain in the / 3 chain.
- HGF hepatocyte-specific growth factor as the main body of liver regeneration factor, but recombinant HGF has become available.
- HGF et al. Have shown that HGF can act as a potent mitogen for many epithelial cells in addition to hepatocytes (Nakamura T., Prince ss Takamatsu Symp., 1994, 24, pp. 195 -213. Review) 0 or Further studies have shown that HGF functions as a motogen that promotes cell motility (T. Nakamura, Prog, growth Factor Res.
- the present inventor has been conducting research to further pursue a series of research results on such HGF.
- the N-terminal hairpin in the chain and the first to fourth four groups Polypeptides having a single domain of -Newly found to have an antagonistic activity against the action of HGF mediated by the Met / HGF receptor, and such polypeptides significantly enhance the angiogenic action of HGF. It has been confirmed that it has an inhibitory effect.
- the present invention has been made based on the above-mentioned novel findings based on such a long-term research on HGF. That is, the present invention is the angiogenesis inhibitor described in the following 1 to 5.
- An anti-angiogenic agent comprising, as an active ingredient, a polypeptide described in (a) or (b) below.
- angiogenesis inhibitor according to 1, wherein the polypeptide has at least one hair domain and four kring domains.
- the above polypeptides and hepatocyte growth factor 2.
- the angiogenesis inhibitor according to 1 or 2 which is obtained by digesting with Rasutase.
- An anti-angiogenic agent comprising the polypeptide of SEQ ID NO: 1 and a pharmaceutically acceptable carrier.
- An angiogenesis inhibitor comprising the polypeptide of SEQ ID NO: 2 and a pharmaceutically acceptable carrier.
- the present invention is a medically or pharmacologically useful drug listed in 6 to 10 below.
- An agent for preventing or treating a disease caused by vascular abnormal growth comprising the polypeptide according to 1 above and a pharmaceutically acceptable carrier.
- vascular overgrowth diseases caused by vascular overgrowth include rheumatoid arthritis, psoriasis, Osier-Webber syndrome, cardiovascular angiogenesis, peripheral vasodilation, hemophilia 7.
- An agent for preventing or treating a disease caused by excessive stimulation of endothelial cells comprising the polypeptide described in 8.1 and a pharmaceutically acceptable carrier.
- a fertility regulator comprising the polypeptide of claim 1 and a pharmaceutically acceptable carrier.
- the present invention is a medically or pharmacologically useful treatment method listed in the following items 11 to 13.
- amino acid sequence of (a) one or more amino acids are deleted, substituted or added, and the amino acid sequence comprises c-- Met ZHGF A polypeptide that has an antagonistic activity against the action of HGF through the receptor
- the above diseases are rheumatoid arthritis, psoriasis, Osier-Webber syndrome, myocardial angiogenesis, peripheral vasodilation, hemophilic arthropathy, ocular angiogenic disease 13.
- the present invention also relates to the use of the polypeptide described in a) or b) below for the production of an angiogenesis inhibitor.
- amino acids consisting of deleted, substituted or added amino acid sequences, and antagonizing the action of HGF via c-Met / HGF receptor Polypeptides that have antimicrobial activity.
- abbreviations for amino acids, peptides, base sequences, and the like are basically indicated by the nomenclature of IUPAC and IUPAC-IUB or the rules thereof, and "base sequence or amino acid. Guideline for the preparation of specifications etc. including sequences ”(March 1997, JPO Coordination Division Examination Standards Office).
- the amino acid number and the position of the amino acid are described with reference to the amino acid sequence of HGF in the mouth of Prev (Nakamura T., et al., Nature 1989, 342). pp. 440-44 3).
- PyrGlu means a pyroglutamate which is a modified amino acid
- PyrGlu 32 is 3 amino acids from the N-terminus based on the amino acid sequence of HGF of prebub mouth. This indicates that the second amino acid residue is in the form of pyroglutamate.
- the angiogenesis inhibitor of the present invention is a polypeptide which is caused by the ⁇ chain of HGF and has an angiogenesis inhibitory action. It is contained as an active ingredient.
- derived from the HGF chain is used to mean that the entire region of the HGF non-chain or a fragment thereof is continuous or discontinuous.
- the angiogenesis inhibitory action does not matter on the mechanism of the action as long as it is an action that suppresses the angiogenesis of blood vessels, but preferably means an action that suppresses the angiogenesis of HGF.o
- Polypeptides having such an action include those having an affinity for c-Met ZHGF receptor, which is an HGF receptor, and having an action of competitively inhibiting the binding of HGF to the receptor. be able to.
- it is a polypeptide that binds to the c-Met / HGF receptor and has an antagonistic activity against the action of HGF through the c-MetZHGF receptor.
- HGF Met ZHGF
- the action of HGF via the ZHGF receptor is as follows: c-Met / HGF receptor tyrosinylamine action ot motogenic activity ra mitogenic activity ) And monomorphogen activity (see Experimental Medicine, Vol. 11, No. 9 (1993)).
- the polypeptides used in the present invention include: A substance that suppresses or inhibits any of these actions, specifically, suppresses or inhibits HGF-induced c-Met / HGF receptor tyrosin phosphorylation, and inhibits the mortogenic activity of HGF. Suppressing / inhibiting action, inhibiting / inhibiting mitogen activity of HGF, or inhibiting / inhibiting morphogen activity of HGF, and having at least one kind of action. Can be Preferably, there may be mentioned polypeptides having all the above-mentioned actions.
- the polypeptide is basically obtained by treating HGF with elastase, and is composed of 447 amino acids in the N-terminal region of the ⁇ chain of HGF. Therefore, the polypeptide has a modified amino acid residue: pyroglutamate as a ⁇ -terminal amino acid, like the ⁇ -chain of HGF, and has one ⁇ -terminal hairpin domain. It has an inn and four single domains.
- the polypeptide is also referred to as HGFZNK4.
- the polypeptide has c-Met / HGF receptor activity that has an antagonistic activity that competitively binds to HGF at the c-Met / HGF receptor.
- the polypeptide itself has little mitogen activity, mortogen activity and morphogen activity, and has no mitogen activity, motogen activity and morphogen activity of HGF. It has the property of inhibiting activity.
- the polypeptide used as an active ingredient of the angiogenesis inhibitor of the present invention is caused by the ⁇ -chain of HGF, and has an angiogenesis effect of HGF. It is not limited to the specific polypeptide represented by SEQ ID NO: 1 as long as it has an action of suppressing the above.
- a Mi acid sequence consisting PyrGlu 32 ⁇ Va 1 478 of HGF, and in part to young rather few or a plurality of A Mi Amino Acids
- Polypeptides can be listed. More preferably, it has the same or a similar physiological activity as HGFZNK4 described above (a tyrosin lin oxidation inhibitory action, a mortogen activity inhibitory action, a mitogen activity inhibitory action, a morphogen activity inhibitory action). ) Can be cited.
- the degree of “deletion, substitution or addition” of the amino acid and the position thereof are not particularly limited as long as the modified polypeptide has the above-mentioned physiological activity.
- a polypeptide in which one or more (or several) amino acids have been deleted or added at the N-terminus and Z- or C-terminus of HGFZNK4, the central region of HGFNK4 In some cases, one or more (or several) amino acids are deleted or added, and the polypeptide is a characteristic structure of HGF / NK4. It is desirable that at least one hairpin domain and four kring domains are modified so that they are substantially retained.
- the modified peptide one or more (or several) amino acids are preferably substituted or deleted in the region other than the hair bind domain and the four kring domain.
- the added polypeptide can be exemplified.
- Specific examples of such polypeptides include amino acid numbers 162 to 1666 (SEQ ID NO: 1) of the polypeptides of HGFZNK4.
- SEQ ID NO: 1 amino acid numbers 162 to 1666 (SEQ ID NO: 1) of the polypeptides of HGFZNK4.
- HGFZNK 4 del 5
- Polypeptides having an amino acid sequence can be mentioned.
- HGFZNK4 or HGF / NK4 (del5) used in the present invention can be used for conventional peptide synthesis based on the amino acid sequence shown in SEQ ID NO: 1 or 2 or the gene sequence of a known HGF, respectively. It can be manufactured chemically or genetically according to it.
- it can be obtained by enzymatically decomposing HGF.
- the enzymatic degradation of HGF can be performed, for example, by digesting HGF using an enzyme such as elastase.
- the enzyme digest is purified using a conventional protein purification method such as high performance liquid chromatography or SDS-PAGE to isolate a polypeptide having a predetermined molecular weight.
- HGFZNK 4 can be obtained.
- the molecular weight may be about 65-69 kD, preferably about 67 kD under reducing conditions of SDS-PAGE, and non-reducing SDS-PAGE. Under conditions, it can have a molecular weight of about 48-52 kD, preferably about 50 kD o
- the HGF used for enzymatic degradation is not particularly limited by the reason for obtaining it, the preparation method, and the like.
- HGF human growth factor
- a gene encoding HGF is inserted into an appropriate vector by a genetic engineering technique, inserted into an appropriate host cell (for example, an animal cell), transformed, and cultured.
- the desired recombinant HGF can also be obtained from the supernatant (for example, Nature, 342, 440, 1989; JP-A-5-111383; JP-A-3-25509). No. 6; Biochem. Biophys. Res. Com. 163, 967, 1989).
- Genes encoding HGF include HGF genes usually derived from mammals including humans, preferably HGF genes derived from humans, and more preferably recombinants derived from humans.
- the HGF gene Japanese Unexamined Patent Publication No. 5-111383 can be used.
- HGF / NK4 (del5)
- the body can be prepared chemically by a peptide synthesis method, or can be prepared by a genetic engineering modification method based on the HGF gene.
- genetic engineering modification methods include, for example, site specificity 'Mitogenesis, L Methods in Enzymology, 154: 350, pp. 367-382 (1987); and 100: 468 (1983). ); Nuclear Acids Res., 12: 9441 (1984); Genetic engineering methods such as the Sequel Chemistry Laboratory Course 1 “Genetic Research Method II”, edited by The Japanese Biochemical Society, pl 05 (1986)]. Chemical synthesis methods such as the ester method and the phosphoric acid amidite method [J. Am. Chem. Soc., 89: 4801 (1967); id.
- the dosage form of the angiogenesis inhibitor of the present invention is particularly limited. But oral preparations such as powders, fine granules, granules, tablets, pills, capsules, solutions, emulsions, suspensions or syrups; ointments, creams, External preparations such as patches and suppositories; ophthalmic preparations such as eye drops and eye ointments; and various preparation forms such as injections and infusions. These dosage forms are formulated by conventional formulation methods generally known in the art.
- carriers include, for example, lactose, sucrose, sodium chloride, glucose, urea, and starch.
- Excipients such as calcium carbonate, calcium carbonate, kaolin, crystalline cellulose, and gay acid, simple syrup, glucose solution, starch solution, gelatin solution, canolepox methinoresenolerose, sera
- Binders such as methylcellulose, potassium phosphate, polyvinylpyrrolidone, dried starch, sodium alginate, powdered starch, laminaran Powder, sodium bicarbonate, calcium carbonate, polyoxyethylene sorbitan fatty acid esters, sodium raurylsulfate, monoglyceride stearate, de Disintegrators such as starch and lactose, disintegrators such as sucrose, stearic acid, cocoa butter, and hydrogenated oil; quaternary ammonium base, sodium rauryl sulfate, etc.
- glycerin starch Moisturizers, adsorbents such as starch, lactose, kaolin, bentonite, and colloidal acid, purified talc, stearates, boric acid powder, polyethylene Lubricants such as alcohol can be used.
- tablets should be tablets coated with normal skin as required, such as sugar-coated tablets, gelatin-coated tablets, finolem-coated tablets, double tablets and multi-layer tablets.
- the carrier When formed into pill form, the carrier may be, for example, excipients such as glucose, lactose, starch, cocoa butter, hydrogenated vegetable oil, hydrogenated oil, talc, and gum arabic. Powder, tragacanth powder, binders such as gelatin, laminaran, Any disintegrant or the like can be used.
- excipients such as glucose, lactose, starch, cocoa butter, hydrogenated vegetable oil, hydrogenated oil, talc, and gum arabic.
- Powder, tragacanth powder, binders such as gelatin, laminaran, Any disintegrant or the like can be used.
- Capsules are prepared by mixing the above peptides with the various carriers exemplified above and filling the capsules with hardened gelatin capsules, soft capsules and the like according to a conventional method.
- the carrier for example, polyethylene glycol, cocoa butter, higher alcohol, esters of higher alcohol, gelatin, semisynthetic glyceride and the like can be used.
- Injectables can be prepared according to standard methods.For example, the above-mentioned polypeptides are dissolved in an appropriate solvent, sterilized by filtration with a filter, etc., and then filled in a sterile container. Can be prepared by It is preferable that the injection solution is isotonic with blood, and when forming into these forms, diluents such as sterile water, ethyl alcohol, macrogol, and propylene glycol are used. Glycerolone, ethoxylated isostearinoleanololecohol, polyoxysylated isostearyl alcohol, and polyoxyethylene lensolenolebitane fatty acid esters. In this case, a sufficient amount of salt, glucose, or glycerin to prepare an isotonic solution may be included in the pharmaceutical preparation, and ordinary dissolution aids and buffers may be used. A soothing agent may be added.
- Bases, stabilizers, lubricants, preservatives, etc. are blended as necessary and mixed and formulated according to conventional methods.
- the base include Fluid No., 0- rafin, white petrolatum, Sarah Shimitsu-ro, paraffin and the like.
- the preservative include methyl parahydroxybenzoate, ethyl parahydroxybenzoate, propyl parabenzoyl benzoate and the like.
- the above-mentioned ointment paste, cream, gel, etc. may be applied to a usual support in a usual manner.
- a usual support woven or non-woven fabrics made of cotton, staple fiber, or synthetic fiber, finolems such as soft vinyl chloride, polyethylene, or polyurethan, or foam sheets are suitable.
- each of the above-mentioned preparations may contain pharmaceutically acceptable additives such as coloring agents, preservatives, flavors, flavoring agents, sweetening agents, and other pharmaceuticals as necessary.
- a stabilizer At the time of formulation, it is preferable to add a stabilizer.
- the stabilizer include albumin, globulin gelatin, mannitol, glucose, dextran, and ethylene glycol.
- a liquid preparation such as an injection
- the preparation is stored frozen or prepared as a freeze-dried product in advance.
- the lyophilized product is used after redissolving with distilled water for injection at the time of use.
- the amount of the polypeptide to be contained in the preparation of the present invention is not particularly limited and may be appropriately selected from a wide range, but is usually from 0.0002 to 0.2 ( w / v%), preferably about 0.001 to 0.1 (wZ v%).
- the method of administering the pharmaceutical preparation is not particularly limited, and is appropriately determined depending on various preparation forms, the age and sex of the patient, other conditions, the degree of the disease, and the like.
- injections are administered intravenously, alone or mixed with normal replacement fluids such as glucose and amino acids, and intramuscularly, intradermally, and subcutaneously alone as needed. Is administered intraperitoneally.
- the daily dose of the angiogenesis inhibitor of the present invention varies depending on the patient's condition, weight, age, sex and the like, and cannot be determined unconditionally.
- the polypeptide of the present invention (HGFNK4 or Or its variant) is usually about 0.01 to 100 mg / day for an adult, and it is preferable to administer it once or in several divided doses.
- the angiogenesis inhibitor of the present invention can be widely applied to the prevention or treatment of diseases caused by abnormal vascular growth.
- diseases are not particularly limited, but specifically include, for example, rheumatoid arthritis, psoriasis, Osier-Webber syndrome, myocardial vasculogenesis, and peripheral vasodilation.
- the blood Amphipathic arthropathy, angiogenic diseases of the eye eg, diabetic retinopathy, retinopathy of prematurity, senile macular degeneration, corneal transplant rejection, neovascular glaucoma, retro lens fibroplasia or rheumatoid arthritis) Cis, etc.
- angiogenic diseases of the eye eg, diabetic retinopathy, retinopathy of prematurity, senile macular degeneration, corneal transplant rejection, neovascular glaucoma, retro lens fibroplasia or rheumatoid arthritis
- Cis eg, hemangiofibromas
- benign tumors eg, vasculature, acoustic neuroma, neurofibroblasts, trachoma, suppurative granuloma, etc.
- hematopoietic tumors including leukemia, solid tumors, tumor metastasis, wound granulation Formation
- the angiogenesis inhibitor of the present invention can be widely applied to the prevention or treatment of diseases caused by excessive or abnormal stimulation of endothelial cells.
- diseases are not particularly limited, but specific examples include intestinal adhesions, Crohn's disease, atherosclerosis, scleroderma, and excessive scar formation such as keloids. Can be done.
- the angiogenesis inhibitor of the present invention is also useful as a fertility regulator based on preventing angiogenesis required for embryo implantation, and as a pathological result, scratching cats It is useful as a prophylactic or therapeutic agent for diseases associated with angiogenesis such as diseases (catscratch di sease) and ulcers.
- BEST MODE FOR CARRYING OUT THE INVENTION examples will be described for describing the present invention. The examples do not limit the technical scope of the present invention. Those skilled in the art can easily make modifications and changes to the present invention based on the description in the present specification, and all of them are included in the technical scope of the present invention.
- Example 1 Isolation and purification of HGFZNK 4
- CHO cells transformed with human HGF cDNA were cultured, and human recombinant HGF was purified and isolated from the culture (Nature 342, pp. 440-443 (1989); Biochem. Biophys. Res. Commun. 172, pp. 321-327 (1990)).
- the recombinant HGF (900 mg) was then spleen elastase (manufactured by Sigma) at 37 ° C for 20 minutes in 0.2 M Tris-no hydrochloric acid buffer (pH 8.8).
- each of these peak fractions was subjected to SAS-PAGE to perform protein staining (FIG. 1B).
- the first peak was 50 kD under non-reducing conditions and 50 kD under reducing conditions.
- the third peak is a fragment with a molecular weight of 33/31 kD under non-reducing conditions and a 34/32 kD molecular weight under reducing conditions. I knew there was.
- -/-kD indicates that proteins having the same amino acid sequence but different molecular weights are present based on the difference in sugar chains added.
- the sequence was represented by RKRRNTIHEF in single letter notation. There was agreement with the N-terminal amino acid sequence of the 2nd to 11th chains. From this, the N-terminal amino acid of the fragment is glutamin modified to pyroglutamate, and the structure of the N-terminal region is the same as that of undigested HGF. It turned out to be.
- HGF was digested into two fragments by elastase treatment, one of which was the hair binding domain of HGF and four of the binding domains.
- PyrGlu 32 ⁇ V a 1 478 region or Rana Ru off La Gume down bets (HGFZNK 4) der is, the other one is part of the ⁇ -chain (a sn 479 or we begin that 1 6 with Lee down (Amino acid) and chains The fact that it was a fragment became a clear force (Fig. 2).
- HGFZNK 4 Binding of HGFZNK 4 to cell surface receptors
- HGF / NK4 prepared in Example 1 was examined for its binding to cell surface receptors.
- the binding property to the cell surface receptor was similarly examined using HGF.
- HGF / NK 4 and HGF were radiolabeled Tsu by the click Lola Mi down one T method (125 I -. HGF / NK 4 125 I one HGF), also La as a cell surface receptor preparation Tsu DOO Plasma membranes prepared from liver were used.
- HGFZNK 4 checks whether the competitive A down Tagonisu Bok against HGF, plasma membrane of liver (5 0 / zg) 125 1 - HGF alone (6 0 p M), or 125 1 — Various concentrations of unlabeled HGF or non-labeled HGF Incubation was performed in the presence of labeled HGF / NK4 in the presence of them. The membrane binding of 125 I-HGF was completely inhibited by the addition of unlabeled HGF, and the 50% inhibitory concentration of unlabeled HGF was 60 years.
- HGFZNK 4 inhibits the membrane binding of HGF Ri 6 0 0 p M der completely 125 I at 6 0 n M - of HGF Inhibited membrane binding ( Figure 3C).
- HGFZNK4 has an affinity of c-Met / HGF receptor of 8- to 10-fold lower than that of HGF, indicating that it is an antagonist of HGF. It was suggested.
- HGF / NK4 The mitogenic activity of HGF / NK4 was examined by measuring the DNA synthesis of rat primary cultured hepatocytes. Further, as a comparison experiment was measured HGF My Togen activity as well (Nature 342, 440-443 (1989) ;... Biochem Bioph ys Res Commun.181, 691 - 699 (1991)) 0
- HGF promotes hepatocyte DNA synthesis in a dose-dependent manner. Therefore, HGF / NK4 did not show any effect of promoting DNA synthesis even at a high concentration of ⁇ ⁇ ⁇ ⁇ ⁇ .
- HGFZNK4 when HGFZNK4 was added to a culture containing HGF and HGF and HGFZNK4 were allowed to coexist, HGF / NK4 inhibited DNA synthesis promoted by HGF in a dose-dependent manner. It was almost completely inhibited at nM (Fig. 4B). In contrast, HGF / NK4 had no inhibitory effect on DNA growth promoted by epidermal growth factor (EGF) (FIG. 4B).
- EGF epidermal growth factor
- HGF / NK4 has no mitogenic activity itself, but has an effect of specifically inhibiting the mitogenic activity of HGF.
- Example 4 HGFZNK4 motogen activity and HGF inhibitory effect on mortogen activity
- the motogenic activity of HGFZ ⁇ TKA was examined using MDCK cells, which are normal epithelial cells derived from renal tubules.
- MDCK cells formed colonies without gaps in the control medium without HGF, but when HGF (22 pM) was added to the medium, the motility of MDCK cells was increased and the cells were dispersed. I let it. In contrast, HGFZNK 4 does not disperse cells at all and maintains good cell-to-cell contact. Had been. In addition, when MDCK cells were cultured in the presence of HGF and HGF / NK4, HGFZNK4 inhibited cell dispersion induced by HGF.
- HGF / NK4 has no motogenic activity itself, but has an action of inhibiting the motogenic activity of HGF.
- Example 5 Morphogenic Activity of HGFZNK4 and Inhibitory Effect on Morphogenic Activity of HGF
- HGF / NK4 inhibits the morphogen activity of HGF
- MDCK cells which are normal epithelial cells derived from renal tubules, were treated with collagen gel in the presence of HGF and Z or HGF / NK4. Grew in.
- MDCK cells formed spherical cell clusters in the control medium without HGF, but when HGF (55 pM) was added to the medium, a branched lumen structure was induced. The addition of / NK4 (55 nM) did not induce luminal structure. In addition, when the MDCK cells were cultured in the presence of HGF and HGFZNK4, the cells maintained a cell cluster state, and the luminal structure was not induced.
- HGF / NK4 has no morphogen activity by itself, but morphogen activity of HGF. It can be seen that it has the effect of inhibiting Example 6-HGFZNK4 Inhibits HGF-Induced c- Met Tyrosin Lin Oxidation
- Lung cancer cells A549 express the c-MetZHGF receptor, and it is known that stimulation of HGF enhances c-Met tyrosin phosphorylation. Therefore, it was examined whether or not HGFZNK4 inhibits the tyrosin phosphorylation effect of the HGF on c-Met.
- A549 cells were stimulated with HGF and HGF or HGFZNK4 to solubilize the cells, immunoprecipitated with an anti-c-Met antibody, and subjected to western blotting.
- the tyrosin phosphorylation of c-Met was observed with the phosphotyrosine antibody.
- HGF c-Met tyrosin phosphorylation
- HGF / NK4 110 nM stimulation with HGF / NK4 (110 nM) induced it. Almost no phosphorylation.
- HGFZNK4 dose-dependently inhibited HGF-induced c-Met tyrosin phosphorylation.
- HGFZNK4 induces HGF-induced c-Met tyrosin phosphorylation of the HGF receptor. It can be seen that this is suppressed. Also, based on this inhibitory effect, HGFZNK4 was considered to act as an antagonist on the biological activity of HGF.
- HMVEC-L Human lung microvascular endothelial cells
- HMVEC-D human skin microvascular endothelial cells
- HGF / NK4 endothelial cells are used. Growth inhibitory effect on.
- a cell suspension of human lung microvascular endothelial cells or human skin microvascular endothelial cells in the logarithmic growth phase of Passage-5 to 8 was prepared and gelatin-coated in a 24-well plate. The cells were seeded at 800 cells per well. After 24 hours, add fresh culture medium (EGM (Eagle Genera 1 Medium) and DMEM (Dulbeccos Modified Eagle Medium) 1: 1 and serum to 5%).
- ECM Eagle Genera 1 Medium
- DMEM Dulbeccos Modified Eagle Medium
- HGFZNK4 dose-dependently stimulated the proliferation of vascular endothelial cells stimulated by 3 ng / ml bFGF, 10 ng / ml HGF, 10 ng / ml VEGF and 5% serum. It was significantly suppressed. Therefore, HGFZNK4 suppresses not only the proliferation of vascular endothelial cells stimulated by HGF but also the proliferation of other vascular endothelial growth promoting factors such as FGF and VEGF. It was suggested to do so.
- the cultures were divided into 10 groups according to the following 10 types of mediums based on the EBM-2 medium containing 5% FBS, and the medium was replaced with the following medium.
- -HGF Ab indicates an anti-HGF ⁇ sagi polyclonal antibody.
- Figure 7 shows the results.
- 300 nM HGF / NK4 markedly suppressed the proliferation of vascular endothelial cells stimulated by the stimulation of 3 ng / ml bFGF, 10 ng / ml VEGF, and 3 ng / ml HGF.
- 10 g / ml anti-HGF / sagipoly clonal antibody specifically inhibited HGF-stimulated vascular endothelial cell proliferation, but did not inhibit FGF- or VEGF-stimulated vascular endothelial cell proliferation.
- HGFZNK4 inhibits the proliferation of vascular endothelial cells by another different novel action in addition to the HGF antagonist action.
- human skin capillary endothelial cells were cultured for 12 hours in serum-free EBM-2 medium, and then suspended in EBM-2 containing 1% ⁇ fetal serum. plated such that x 1 0 4 cells cm 2.
- the cultures were divided into 10 groups, and the FGF, HGF, VEGF or HGFZNK4, anti-HGF ⁇ sagipoly clonal antibodies (a- HGF Ab) was added to each solution.
- FIG. 8 shows the results.
- 300 nli HGF / ⁇ 4 markedly suppressed the migration of vascular endothelial cells promoted by stimulation with 3 ng / ml bFGF, 10 ng / ml VEGF, and 3 ng / ml HGF.
- 10 ⁇ g / ral anti-HGF ⁇ sagipoly clonal antibody specifically inhibited the migration of vascular endothelial cells stimulated by HGF, but b inhibited the migration of vascular endothelial cells stimulated by FGF and VEGF.
- HGFZNK4 suppresses the migration of vascular endothelial cells by another different novel action in addition to the HGF antagonist action.
- Example 10 Effect of 10-HGF / NK4 on Angiogenesis of Chorionic Allantois (CAM)
- the fertilized chicken eggs were cultured for 4 days, holes were made in the eggshell at two places, the upper part of the air chamber and the side of the eggs, 3 ml egg white was aspirated from the side holes and sealed with tape.
- the cellulose disk was placed. 3 7. After 2 days of culture in C, the vascular network on the CAM was observed under a stereoscopic microscope. Table 1 shows the results.
- HGF / NK4 has an angiogenesis inhibitory effect.
- Example 11 1 Inhibitory effect of HGF / NK4 on tumor angiogenesis
- Control + + + + + + + Intratumor neovascularization was evaluated based on the following criteria
- Fig. 11 1 The results of tracking the volume of the transplanted cancer over time are shown in Fig. 11 1, and Fig. 11B shows the weight of the transplanted cancer on the 28th day.
- the transplanted cancer of the control injected with physiological saline grew rapidly after 10 days after transplantation, but HGFZNK4 strongly suppressed the growth of the cancer in a dose-dependent manner. .
- HGF / NK4 has an effect of significantly suppressing the growth and metastasis of lung cancer in vivo.
- Reference Example 2-Effect of HGFZNK 4 on cancer growth and metastasis (2) Six to eight-week-old nude mice (BALB / cnu / nu) were implanted with 5 ⁇ 10 6 Jyg breast cancer cells subcutaneously on the back. Five days later, an osmotic pump (manufactured by Alzet) containing HGFZNK 4 or saline (control) was implanted under the skin under the back, and HGF / NK 4 or saline was continuously applied near the transplanted cancer for 2 weeks. Injected. The volume of the transplanted cancer was measured over time, and the number of metastatic tumors on the lung surface was counted 28 days after the cancer transplantation.
- FIG. 13A shows the results of tracking the volume of the transplanted cancer over time
- FIG. 13B shows the number of metastatic tumors on the lung surface 28 days after cancer transplantation.
- the transplanted cancer of the control injected with physiological saline grew rapidly after 10 days after transplantation, but HGF / NK4 suppressed the growth of the cancer.
- HGF / NK4 suppressed the growth of the cancer.
- pulmonary metastasis a large number of pulmonary metastatic foci were observed in the control saline-injected group, whereas lung metastasis was suppressed in individuals injected with HGFZNK4. was recognized.
- HGF / NK4 (1 mg), mannitol (lg), and polysodium prepared in Example 1 were added to 100 Om1 of physiological saline.
- a solution containing 80 mg (10 mg) of ascorbate was aseptically prepared, dispensed into vials in 1 ml portions, freeze-dried and sealed, and the anti-angiogenic agent of the present invention was freeze-dried. It was prepared as a formulation.
- Example 1 in 100 ml of 0.02 M phosphate buffer (containing 0.15 M NaCl and 0.01% polysorbate 80, pH 7.4) The aqueous solution containing 1 mg of HGFZNK 4 and 100 mg of human serum albumin prepared in 1) was aseptically mixed and dispensed into vials 1 ml at a time. Next, the solution in each vial was lyophilized and sealed, and the angiogenesis inhibitor of the present invention was prepared as a lyophilized formulation.
- Formulation Example 3 Formulation Example 3
- HGF / NK4 (1 mg), sonoreitol (2 g), glycine (2 g) and polysorbate prepared in Example 1 were prepared.
- the angiogenesis inhibitor of the present invention is based on its angiogenesis inhibitory action, and is based on its angiogenesis inhibitory action. It is useful as an agent for preventing or treating excessive scar formation during wound healing.
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Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69939586T DE69939586D1 (de) | 1998-04-28 | 1999-04-06 | Inhibitoren für die gefässneubildung |
| JP2000545559A JP4094814B2 (ja) | 1998-04-28 | 1999-04-06 | 血管新生抑制剤 |
| CA2327382A CA2327382C (en) | 1998-04-28 | 1999-04-06 | Neovascularization inhibitors |
| EP99912129A EP1074264B1 (en) | 1998-04-28 | 1999-04-06 | Neovascularization inhibitors |
| DK99912129T DK1074264T3 (da) | 1998-04-28 | 1999-04-06 | Inhibitorer for neovaskularisering |
| US12/186,261 US20090023658A1 (en) | 1998-04-28 | 2008-08-05 | Neovascularization Inhibitors Derived From HGF and Methods Involving the Same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10/134681 | 1998-04-28 | ||
| JP13468198 | 1998-04-28 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/186,261 Division US20090023658A1 (en) | 1998-04-28 | 2008-08-05 | Neovascularization Inhibitors Derived From HGF and Methods Involving the Same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999055361A1 true WO1999055361A1 (fr) | 1999-11-04 |
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ID=15134093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1999/001834 WO1999055361A1 (fr) | 1998-04-28 | 1999-04-06 | Inhibiteurs de neovascularisation |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US20090023658A1 (ja) |
| EP (1) | EP1074264B1 (ja) |
| JP (1) | JP4094814B2 (ja) |
| AT (1) | ATE408415T1 (ja) |
| CA (1) | CA2327382C (ja) |
| DE (1) | DE69939586D1 (ja) |
| DK (1) | DK1074264T3 (ja) |
| ES (1) | ES2313777T3 (ja) |
| WO (1) | WO1999055361A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005237373A (ja) * | 2004-01-27 | 2005-09-08 | Toshiichi Nakamura | 糖鎖欠損型HGFα鎖部分蛋白質 |
| US7601365B2 (en) | 2000-08-28 | 2009-10-13 | Damavand Wound, AB | Synergetic effects of HGF and antibacterial treatment |
| WO2009125831A1 (ja) * | 2008-04-11 | 2009-10-15 | 有限会社スリーピー | Nk4に対するモノクローナル抗体 |
| JP2022009994A (ja) * | 2015-06-25 | 2022-01-14 | 大鵬薬品工業株式会社 | 線維症治療剤 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030118585A1 (en) | 2001-10-17 | 2003-06-26 | Agy Therapeutics | Use of protein biomolecular targets in the treatment and visualization of brain tumors |
| FR2831540B1 (fr) * | 2001-10-31 | 2004-07-09 | Inst Vaisseaux Et Du Sang | Peptide isole du facteur de croissance hepatocytaire et ses variants, procede de preparation et utilisation en therapeutique en tant qu'agents antiangiogeniques |
| JP2003250549A (ja) * | 2002-02-25 | 2003-09-09 | Kringle Pharma Inc | Nk4遺伝子または組換えnk4蛋白質からなる医薬 |
| WO2004019991A2 (en) * | 2002-08-30 | 2004-03-11 | F. Hoffmann-La Roche Ag | Scatter factor/hepatocyte growth factor antagonist nk4 for the treatment of glioma |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0461560A1 (en) * | 1990-06-11 | 1991-12-18 | Toshikazu Nakamura | Recombinant human hepatocyte growth factor and method for production thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6566098B1 (en) * | 1990-09-14 | 2003-05-20 | The United States Of America As Represented By The Department Of Health And Human Services | DNA encoding truncated hepatocyte growth factor variants |
| CN1636594B (zh) * | 1994-04-26 | 2012-08-29 | 儿童医学中心公司 | 血管生成抑制素和用于抑制血管生成的方法 |
| DE69637179T2 (de) * | 1995-04-26 | 2008-04-10 | The Children's Medical Center Corp., Boston | Angiostatinfragmente und verfahren für deren verwendung |
| US5686292A (en) * | 1995-06-02 | 1997-11-11 | Genentech, Inc. | Hepatocyte growth factor receptor antagonist antibodies and uses thereof |
| US6855685B2 (en) * | 1995-10-24 | 2005-02-15 | Toshikazu Nakamura | Anti-cancer agent |
| JP2003250549A (ja) * | 2002-02-25 | 2003-09-09 | Kringle Pharma Inc | Nk4遺伝子または組換えnk4蛋白質からなる医薬 |
-
1999
- 1999-04-06 DK DK99912129T patent/DK1074264T3/da active
- 1999-04-06 AT AT99912129T patent/ATE408415T1/de active
- 1999-04-06 ES ES99912129T patent/ES2313777T3/es not_active Expired - Lifetime
- 1999-04-06 WO PCT/JP1999/001834 patent/WO1999055361A1/ja active IP Right Grant
- 1999-04-06 JP JP2000545559A patent/JP4094814B2/ja not_active Expired - Fee Related
- 1999-04-06 DE DE69939586T patent/DE69939586D1/de not_active Expired - Lifetime
- 1999-04-06 EP EP99912129A patent/EP1074264B1/en not_active Expired - Lifetime
- 1999-04-06 CA CA2327382A patent/CA2327382C/en not_active Expired - Fee Related
-
2008
- 2008-08-05 US US12/186,261 patent/US20090023658A1/en not_active Abandoned
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0461560A1 (en) * | 1990-06-11 | 1991-12-18 | Toshikazu Nakamura | Recombinant human hepatocyte growth factor and method for production thereof |
Non-Patent Citations (3)
| Title |
|---|
| BUSSOLINO F., ET AL.: "HEPATOCYTE GROWTH FACTOR IS A POTENT ANGIOGENIC FACTOR WHICH STIMULATES ENDOTHELIAL CELL MOTILITY AND GROWTH.", THE JOURNAL OF CELL BIOLOGY : JCB, THE ROCKEFELLER UNIVERSITY PRESS, US, vol. 119., no. 03., 1 November 1992 (1992-11-01), US, pages 629 - 641., XP002920324, ISSN: 0021-9525, DOI: 10.1083/jcb.119.3.629 * |
| Chemical Abstracts Service (C A S); 1 January 1900 (1900-01-01), XP002920325, Database accession no. 127-246281 * |
| DATE K., ET AL.: "HGF/NK4 IS A SPECIFIC ANTAGONIST FOR PLEIOTROPHIC ACTIONS OF HEPATOCYTE GROWTH FACTOR.", FEBS LETTERS., ELSEVIER, AMSTERDAM., NL, vol. 420., no. 01., 1 January 1997 (1997-01-01), NL, pages 01 - 06., XP002920323, ISSN: 0014-5793, DOI: 10.1016/S0014-5793(97)01475-0 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7601365B2 (en) | 2000-08-28 | 2009-10-13 | Damavand Wound, AB | Synergetic effects of HGF and antibacterial treatment |
| JP2005237373A (ja) * | 2004-01-27 | 2005-09-08 | Toshiichi Nakamura | 糖鎖欠損型HGFα鎖部分蛋白質 |
| WO2009125831A1 (ja) * | 2008-04-11 | 2009-10-15 | 有限会社スリーピー | Nk4に対するモノクローナル抗体 |
| JPWO2009125831A1 (ja) * | 2008-04-11 | 2011-08-04 | 有限会社スリーピー | Nk4に対するモノクローナル抗体 |
| JP4851620B2 (ja) * | 2008-04-11 | 2012-01-11 | 有限会社スリーピー | Nk4に対するモノクローナル抗体 |
| JP2022009994A (ja) * | 2015-06-25 | 2022-01-14 | 大鵬薬品工業株式会社 | 線維症治療剤 |
| US11690838B2 (en) | 2015-06-25 | 2023-07-04 | Taiho Pharmaceutical Co., Ltd. | Therapeutic agent for fibrosis |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2327382C (en) | 2012-12-18 |
| JP4094814B2 (ja) | 2008-06-04 |
| ATE408415T1 (de) | 2008-10-15 |
| EP1074264A1 (en) | 2001-02-07 |
| US20090023658A1 (en) | 2009-01-22 |
| DE69939586D1 (de) | 2008-10-30 |
| DK1074264T3 (da) | 2008-11-24 |
| EP1074264A4 (en) | 2004-11-10 |
| CA2327382A1 (en) | 1999-11-04 |
| ES2313777T3 (es) | 2009-03-01 |
| EP1074264B1 (en) | 2008-09-17 |
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