WO1992009627A1 - Peptide ayant le pouvoir d'inhiber l'infiltration des cellules cancereuses, composite a base de ce peptide et inhibiteur de la metastase du cancer - Google Patents
Peptide ayant le pouvoir d'inhiber l'infiltration des cellules cancereuses, composite a base de ce peptide et inhibiteur de la metastase du cancer Download PDFInfo
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- WO1992009627A1 WO1992009627A1 PCT/JP1991/001648 JP9101648W WO9209627A1 WO 1992009627 A1 WO1992009627 A1 WO 1992009627A1 JP 9101648 W JP9101648 W JP 9101648W WO 9209627 A1 WO9209627 A1 WO 9209627A1
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Classifications
-
- 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
- C07K14/52—Cytokines; Lymphokines; Interferons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/50—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates
- A61K47/51—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent
- A61K47/56—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule
- A61K47/61—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule the organic macromolecular compound being a polysaccharide or a derivative thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
Definitions
- the present invention relates to a novel peptide having a cancer cell invasion inhibitory activity, a complex of a peptide having a cancer cell invasion inhibitory activity and a polymer, and an agent for suppressing cancer migration which contains them as an active ingredient. .
- Surgical treatment, radiation, and chemotherapy are mainly used to treat cancer.
- no satisfactory therapeutic effect has been obtained in terms of cancer recurrence or metastasis.
- Many anticancer drugs currently in use kill cancer cells by inhibiting the biosynthetic system of nucleic acids and proteins.
- normal cells and cancer cells are not distinguished, and thus there is a serious problem that side effects are likely to occur due to the action on normal cells.
- Cancer cells invade the blood vessels after being released from the primary focus. After adhering to the blood vessel wall, the cancer cells invade beneath the vascular endothelial cell layer, destroying the extracellular matrix and invading the parenchyma of the target organ. In this way, cancer cells are thought to metastasize to other organs (LA Liotta et al., Lab. Invest., 49, 636-649, (1983)).
- a drug that suppresses any of the above steps should be developed.
- the present inventors have made intensive studies on substances that inhibit cancer cell invasion.
- the present inventors examined the improvement of the substance (peptide represented by the amino acid sequence of the formula (14)), which inhibits the invasion of the above-mentioned cancer cells, and the improvement of the activity and the stability thereof.
- the substance peptide represented by the amino acid sequence of the formula (14)
- the improvement of the activity and the stability thereof As a result, new peptides with fewer amino acid residues have been discovered, and their activity has been improved by carrying a peptide that inhibits invasion of cancer cells into the carrier, and the stability in vivo has been improved. I found something to do.
- the present invention relates to peptides having 5 to 20 amino acid residues having an activity of inhibiting cancer cell invasion, such as peptides having any one of the amino acid sequences represented by the following formulas (1) to (13):
- the present invention relates to an acid addition salt.
- a peptide having the cancer cell invasion inhibitory activity having 5 to 20 amino acid residues a peptide having any one of the amino acid sequences represented by the following formulas (1) to (13) is preferable.
- the peptides having the sequences represented by the above formulas (1) to (13) [hereinafter, referred to as “formula (1) peptide” to “formula (13) peptide”] by themselves have invasion inhibitory activity and translocation inhibitory activity. Activity [Hereinafter, these activities are collectively referred to as invasion-inhibiting activities unless otherwise specified.
- This peptide has an effect of inhibiting invasion of cancer cells by having invasion inhibitory activity, and is therefore a peptide useful as a cancer metastasis inhibitor.
- the peptide which the present inventors have already published in the literature is a peptide having an amino acid sequence represented by the following (14) [hereinafter, referred to as “peptide of formula (14)”].
- Glx represents Glu or Gin.
- the present invention also relates to a peptide complex in which a peptide having a cancer cell invasion inhibitory activity is supported on an essentially nontoxic polymer carrier.
- a peptide having a cancer cell invasion inhibitory activity at least one peptide selected from the peptides represented by the above formulas (1) to (14) is preferable.
- the essentially nontoxic polymer carrier a polymer derived from a living organism is preferable, and to support a peptide thereon, it is preferable that both are chemically bonded.
- This peptide complex is useful as a cancer metastasis inhibitor similarly to the above-mentioned peptide.
- This peptide conjugate is superior to these single peptides in improving invasion-inhibiting activity and in vivo stability.
- a biologically-derived polymer is preferable.
- synthetic polymers such as pharmaceutically acceptable synthetic polymers and synthetic proteins may be used.
- the biologically-derived polymer is preferably a biologically-derived protein, but is not limited thereto.
- a biologically-derived polysaccharide may be used.
- Preferred biologically derived polymers other than biologically derived proteins are chondroitin sulfate and hyaluronic acid.
- Any biologically-derived protein may be used as long as it is available. Desirably, proteins that are highly stable in blood, inexpensive, and available in large quantities are desirable. Les ,. For example, there are pre-albumin, albumin, alpha-globulin protein, beta-globulin protein, immunoglobulin protein, anti-thrombin, complement protein, fibrinogen, fibronectin, collagen and the like, which are components of the award. It may also be a pharmaceutically acceptable enzyme protein.
- the protein is preferably derived from humans, but may be derived from other animals. Particularly preferred biological proteins are the above-mentioned albumins and glopurins.
- the number of peptides bound per protein molecule is one or more, and particularly preferably about 1 to about 0 L0 molecules.
- chondroitin sulfate or hyaluronic acid can be used.
- chondroitin sulfate or hyaluronic acid which does not adversely affect the living body is used.
- chondroitin sulfate various types of chondroitin sulfate extracted from living bodies such as cartilage and connective tissue can be used as well as commercially available ones.
- hyaluronic acid not only commercially available ones but also various hyaluronic acids extracted from living organisms such as crane cockscomb can be used.
- the molecular weights of both are not particularly limited, but those having a molecular weight of about tens of thousands or more are suitable.
- the amount of the bound peptide is not particularly limited, and the amount of the bound peptide can be adjusted according to the purpose.
- the amount of the peptide bound per mg of the complex is suitably about 1 to 1000) Li g, and particularly preferably about 10 to 500 ⁇ g.
- the complex of the present invention is formed by chemically binding a peptide to a protein or the like.
- physical bonding such as adsorption may be used.
- the chemical bond may be formed by a carbodiimide condensation method, a cyanogen bromide activation method (Axenk Ernback (1971) Eur. J. Biochem .; i8, 351), or a protonated Schiff base followed by an isocyanate compound.
- a covalent bond obtained by a rearrangement (Ugi) reaction (Axen et al., Acta Chem. Scand., 25, 1129 (1971)).
- An immobilized enzyme that binds a protein, peptide, or the like to a polymer carrier after the modification, a method adapted to a technique such as the preparation of an affinity chromatography carrier, or the like can be used.
- a particularly preferable means of the above-mentioned bonding is a karposimid condensation method.
- the carbopimides used for this include the following carbopimides.
- water-soluble carbopimides are particularly preferred.
- the composite As a specific method for producing the composite, it can be appropriately adopted according to the various methods described above.
- a protein and 1 to 60 equivalents of the peptide of formulas (1) to (13) are dissolved in an aqueous solvent, and 11 is adjusted to about 7.5 to 8.5.
- a method can be employed in which a reaction is performed by adding about the same amount of water-soluble carbodiimide to the protein by weight.
- the obtained complex is preferably purified by dialysis, alcohol precipitation, gel filtration, ion exchange, reverse phase chromatography or the like.
- methods for searching for a cancer cell invasion inhibitor include, for example, a system developed by Akada et al. (Cancer Res., 46, 2416-2422, (1986)), or a system of Albini et al. (Cancer Res. , 47, 3239-3245, (1987)).
- transwell chamber an improved version of Boy's Denchamber
- a transwell chamber consisting of two layers, upper and lower, with a polycarbonate filter with an 8 ⁇ hole.
- At matrigel manufactured by Collaborative
- the lower layer is filled with extracellular matrix components such as fibronectin as chemotactic factors and the upper layer. Add metastatic cancer cells and count the number of cancer cells that have migrated to the underside of the filter 20-40 hours later.
- a commonly used experimental lung metastasis system is used to evaluate cancer metastasis using animals. That is, metastatic cancer cells such as B16 melanoma and Lewis lung cancer are injected into the tail vein of a mouse, the lung is removed 2-3 weeks later, and the number of metastatic foci visible on the lung surface is counted to evaluate cancer metastasis.
- At least one peptide selected from the formula (1) peptide to formula (13) peptide and the formula (1) peptide to formula (14) peptide of the present invention and a biologically-derived polymer The peptide complex formed by chemically binding to the compound showed strong inhibitory activity on cancer cell invasion and metastasis, and was confirmed to be promising as a cancer metastasis inhibitor.
- FIG. 1 to FIG. 4 are graphs showing the results of measuring the inhibitory effect of the peptide peptide complex of the present invention on cancer cell invasion by the method of Albini et al. In Examples C and E-3 below.
- FIG. 5 is a graph showing the results of measuring the blood kinetics of the peptide-peptide complex of the present invention in Example E-4 below.
- Ala alanine
- Glu glutamic acid
- Gin glutamine
- Glx glutamic acid or glumin
- Asp aspartic acid
- Asn asparagine
- Asx aspartic acid or asparagine
- Gly glycine
- Lys lysine
- Thr threonine.
- Peptide synthesis was performed by Merrifield solid phase synthesis. That is, the desired peptide was synthesized by an automatic synthesizer model 9050 manufactured by Milligen. Next, the synthesized peptide was purified by high performance liquid chromatography (HPLC) under the following purification conditions.
- HPLC high performance liquid chromatography
- Eluent A water containing 0.1% trifluoroacetic acid
- Eluent B acetonitrile containing 0.1% trifluoroacetic acid
- the eluted peptide was recovered and freeze-dried to obtain a purified peptide.
- Amino acid composition Asx: 2.04 Ala: 2.93 Lys: 2.03 Thr: 0.89 Glx: 3.02
- Amino acid composition Asx: 0.98 Ala: 2.10 Lys: 2.01 Glx: 3.01 Gly: 1.01
- Example B [Synthetic peptide inhibits cancer cell invasion]
- the peptide prepared in Example A was examined for its inhibitory effect on cancer cell invasion.
- the evaluation method was performed according to the following method of Albini et al.
- the lower Kemotakiseru put Hitofu Eve Lone Kuching 20 w g / ml, an upper layer placed 5 X10 4 cells with various concentrations of peptide were incubated for 20 hours in a C0 2 incubator. After completion of the culture, the cells remaining on the upper surface of the filter 1 were scraped off with a cotton swab, and lysed with the cells migrated to the lower surface using a filter 1 and a tissue sol- plizer 1 (manufactured by Amersham).
- mice C57BL / 6J mice (7-week-old, female) were injected with various concentrations of the synthetic peptide from the tail vein at a concentration of 1.2 ⁇ 10 5 (variable) high metastatic mouse cancer cells B16FE7. Two weeks later, the mice were sacrificed, the lungs were removed, and the number of metastatic foci on the lung surface was counted under a stereomicroscope.
- Eluent B acetonitrile containing 0.1% trifluoroacetic acid
- Flow rate 10 ml / min Dissolve B by applying a linear gradient from 0 to 60% from 0 to 30 minutes.
- the eluted peptide was recovered and subjected to lyophilization.
- the peptide of formula (14) prepared in Reference Example was bound to mouse serum albumin by a condensation reaction with a water-soluble carbodiimide.
- 100 mg of the peptide of formula (14) prepared in the reference example and 100 mg of mouse serum albumin were dissolved in 10 cm 3 of distilled water, and the pH was adjusted to 8.5 with a 1N sodium hydroxide solution.
- the solution of 100 mg / cm 3 1- Echiru 3- (3-dimethylaminopropyl ⁇ amino propyl) carboxamide Jiimi de solution l cm 3 was added, 2 hours the mixture at 37 ° C, then reacted for 12 hours at 4 Was.
- the reaction was terminated by adding a 1 M glycine solution, followed by dialysis against 5,000 cm 3 of distilled water.
- the obtained solution was subjected to high performance liquid chromatography (reverse phase chromatography) to purify the complex.
- the purification conditions were the same as in the Reference Example.
- the peptide-mouse serum albumin complex was eluted unreacted or later than the peptide-peptide complex, and these could be completely separated.
- the eluted conjugate was subjected to lyophilization.
- the amount of the obtained complex was 90 mg.
- the purified complex was analyzed by SDS-polyacrylamide electrophoresis. I
- 10mM phosphate buffer containing 0. 15M sodium chloride (PBS) is dissolved to a concentration of m 3 N 8 mg of peptide one serum albumin conjugate prepared in Example D-1, that 0. 3. 0.1 M NaBH 3 CN and 0.025 cm 3 were added to 5 cm 3 , and 10 / x Ci [ 14 C] formaldehyde (Amersham: 477 MBq / cm 3 ) was added. The reaction was performed at C for 20 hours. After completion of the reaction, PBS was added, and desalting and concentration were repeated using Centricon 10 (manufactured by Amicon). The label, of 1735 cp ⁇ l / ⁇ g [ "C ] was incorporated (cpm; count Z min).
- the peptide of formula (14) prepared in Reference Example was bound to mouse IgG by a condensation reaction with water-soluble carbodiimide.
- Example E [Effects of peptide complex on cancer cell invasion and metastasis]
- Example D-1 The peptide-serum albumin complex prepared in Example D-1 was examined for its effect on suppressing cancer cell invasion.
- the evaluation method was according to the method of Albini et al. In Example B, and this peptide conjugate was used instead of the peptide.
- Fig. 4 shows the results. This complex was shown to significantly inhibit cancer cell invasion.
- C57BL / 6j mice (8 weeks old, female) were injected with ⁇ , ⁇ 0.2 cm 3 of the peptide or ⁇ 0.2 cm 3 of the labeled complex into the tail vein. After a certain period of time, the carotid artery was cut and blood was collected. When quantifying the amount of peptide in the blood, collected 1 cm 3 of blood was added an equal volume of 10% Torifuruoro acetate, 10, 000 to precipitate denatured proteins by centrifugation at rotation Bruno min, and the supernatant was recovered . 1.5 cm 3 of 10% trifluoroacetic acid was added to the precipitate, and the mixture was stirred well.
- the peptide had a blood half-life of about 20 seconds and disappeared from the blood in about 3 minutes.However, the blood disappearance curve of butidodo serum albumin complex Became biphasic, leaving about 40% of the complex after 60 minutes. I'm sorry. Since the half-life of the peptide-albumin complex in blood has been significantly prolonged, the effect can be expected to continue.
- Peptide-serum albumin complex prepared in Example D-1 and Example! The inhibitory effect of the peptide-igG complex prepared in 13 on the migration of cancer cells was examined by the method of Example C. The results are shown in Tables 4 and 5.
- Example A-1 The peptide of the formula (7) prepared in Example A-1 was subjected to a condensation reaction with water-soluble carbodiimide in the same manner as in Example D-1, and bound to mouse serum albumin. The amount of the obtained complex was 90 mg.
- the peptide of the formula (6) prepared in Example A-2 was bound to mouse albumin by a condensation reaction with a water-soluble carpoimide in the same manner as in Example F-1.
- the yield of the formula (6) ⁇ peptide albumin complex was 81 mg, and an average of 3.1 molecules of the formula (6) peptide was bound to one molecule of albumin.
- a complex was prepared from the peptide of formula (9) prepared in Example A-4 using water-soluble carbodiimide in the same manner as in Example F-1.
- the yield of the complex was 84 mg , and an average of 2.8 molecules of the peptide of formula (9) was bound per one molecule of albumin.
- Example A-3 The formula (13) -butide produced in Example A-3 was bound to albumin by the water-soluble lipoimide method in the same manner as in Example F-1. The yield was 91 mg. On average, 5.2 molecules of the peptide of formula (13) were bound per one molecule of albumin.
- Example G [Inhibitory effect of peptide complex on cancer cell invasion]
- Peptides one serum albumin complex (i) ⁇ cancer cell invasion inhibitory activity measurement example of (iv) F- 1 ⁇ F - 4 a of the pair Puchido serum albumin conjugate prepared was examined invasion inhibitory effects of cancer cells The evaluation was performed according to the method of Albini et al. In Example B, using this peptide conjugate instead of the peptide. Table 6 shows the results.
- the peptide of formula (14) prepared in Reference Example was bound to chondroitin sulfate (manufactured by Sigma) derived from bovine trachea by a condensation reaction with water-soluble rupoimide.
- the precipitate was collected by centrifugation, dissolved in distilled water, and dialyzed against 5000 cm 3 of distilled water five times.
- the obtained complex was subjected to high performance liquid chromatography (gel filtration), and it was confirmed that no unreacted peptide of the formula (14) remained.
- the amount of the obtained complex was 6.4 mg. A portion of this was subjected to amino acid analysis, which revealed that 190 tg of peptide was bound per mg of complex.
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Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/157,437 US5548062A (en) | 1990-11-30 | 1993-11-26 | Tumor cell invasion-inhibiting peptides, peptide complexes and cancer metastasis inhibitors |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2/330612 | 1990-11-30 | ||
JP2330612A JP2975100B2 (ja) | 1990-11-30 | 1990-11-30 | 新規ペプチドおよびその用途 |
JP3/35260 | 1991-02-05 | ||
JP3035260A JP2917548B2 (ja) | 1991-02-05 | 1991-02-05 | ペプチド複合体、及びそれを有効成分とする癌転移阻害剤 |
JP3091305A JPH04300899A (ja) | 1991-03-29 | 1991-03-29 | ペプチド複合体及び癌転移阻害剤 |
JP3/91305 | 1991-03-29 | ||
JP3091306A JPH04300900A (ja) | 1991-03-29 | 1991-03-29 | ペプチド複合体、及びそれを有効成分とする癌転移阻害剤 |
JP3/91306 | 1991-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992009627A1 true WO1992009627A1 (fr) | 1992-06-11 |
Family
ID=27460069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1991/001648 WO1992009627A1 (fr) | 1990-11-30 | 1991-11-29 | Peptide ayant le pouvoir d'inhiber l'infiltration des cellules cancereuses, composite a base de ce peptide et inhibiteur de la metastase du cancer |
Country Status (4)
Country | Link |
---|---|
US (1) | US5548062A (ja) |
EP (2) | EP0513388A4 (ja) |
CA (1) | CA2074945A1 (ja) |
WO (1) | WO1992009627A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010096318A (ko) * | 2000-04-18 | 2001-11-07 | 현창기 | 가축 혈액단백질로부터 제조된 항암성 펩타이드 및 그제조방법 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6143864A (en) * | 1994-06-28 | 2000-11-07 | Merck & Co., Inc. | Peptides |
US5840514A (en) * | 1996-11-21 | 1998-11-24 | The Regents Of The University Of Michigan | Methods of testing cancer and anticancer drugs |
US6001965A (en) * | 1996-11-21 | 1999-12-14 | The Regents Of The University Of Michigan | Anticancer compounds and methods |
GB9824632D0 (en) * | 1998-11-10 | 1999-01-06 | Celltech Therapeutics Ltd | Biological compounds |
KR100426450B1 (ko) * | 2002-03-16 | 2004-04-13 | 박래옥 | 구연산, 알부민 및 아연을 함유한 항암 조성물 |
US20060078535A1 (en) * | 2004-10-13 | 2006-04-13 | The Regents Of The University Of Michigan | Anticancer compounds and methods |
WO2016136707A1 (ja) | 2015-02-27 | 2016-09-01 | 学校法人常翔学園 | 膜透過性ペプチド鎖を有する多糖誘導体 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH024716A (ja) * | 1988-03-10 | 1990-01-09 | La Jolla Cancer Res Found | 合成ペプチドを含む細胞移動抑制剤 |
JPH02174798A (ja) * | 1988-06-24 | 1990-07-06 | Ichiro Azuma | 細胞接着活性コア配列の繰り返し構造からなるポリペプチド |
JPH0334993A (ja) * | 1989-06-30 | 1991-02-14 | Asahi Glass Co Ltd | 新規ポリペプチドおよびその用途 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1237085A (en) * | 1983-08-01 | 1988-05-24 | Furukawa, Keiichiro | Spf-100 and process for the preparation thereof |
US5092885A (en) * | 1987-02-12 | 1992-03-03 | The Government Of The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Peptides with laminin activity |
US5280106A (en) * | 1988-05-20 | 1994-01-18 | Liotta Lance A | Matrix metalloproteinase peptides: role in diagnosis and therapy |
SE8804164A0 (sv) * | 1988-11-17 | 1990-05-18 | Per Prisell | Farmaceutisk beredning |
US5175251A (en) * | 1989-05-04 | 1992-12-29 | Sri International | Antimetastatic peptides with laminin activity |
US5120828A (en) * | 1989-05-08 | 1992-06-09 | Regents Of The University Of Minnesota | Synthetic polypeptide with laminin activity |
US5231082A (en) * | 1989-05-10 | 1993-07-27 | Monsanto Company | Cyclic peptide with anti-metastasis activity |
US5082926A (en) * | 1989-12-14 | 1992-01-21 | Regents Of The University Of Minnesota | Polypeptide with type iv collagen cell adhesion, spreading and motility activity |
US5190920A (en) * | 1990-09-24 | 1993-03-02 | W. R. Grace & Co.-Conn. | Method for using synthetic analogs of thrombospondin for inhibiting metastasis activity |
-
1991
- 1991-11-29 WO PCT/JP1991/001648 patent/WO1992009627A1/ja not_active Application Discontinuation
- 1991-11-29 CA CA002074945A patent/CA2074945A1/en not_active Abandoned
- 1991-11-29 EP EP19910920819 patent/EP0513388A4/en not_active Withdrawn
- 1991-11-29 EP EP95107250A patent/EP0671412A1/en not_active Withdrawn
-
1993
- 1993-11-26 US US08/157,437 patent/US5548062A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH024716A (ja) * | 1988-03-10 | 1990-01-09 | La Jolla Cancer Res Found | 合成ペプチドを含む細胞移動抑制剤 |
JPH02174798A (ja) * | 1988-06-24 | 1990-07-06 | Ichiro Azuma | 細胞接着活性コア配列の繰り返し構造からなるポリペプチド |
JPH0334993A (ja) * | 1989-06-30 | 1991-02-14 | Asahi Glass Co Ltd | 新規ポリペプチドおよびその用途 |
Non-Patent Citations (2)
Title |
---|
Jpn. J. Cancer Res., Vol. 81, No. 9 (1990), ATSUSHI ISOAI et al. "Purification and characterization of tumor invasioninhibiting factors" pp. 909-914. * |
See also references of EP0513388A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010096318A (ko) * | 2000-04-18 | 2001-11-07 | 현창기 | 가축 혈액단백질로부터 제조된 항암성 펩타이드 및 그제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EP0513388A1 (en) | 1992-11-19 |
EP0671412A1 (en) | 1995-09-13 |
EP0513388A4 (en) | 1993-06-30 |
US5548062A (en) | 1996-08-20 |
CA2074945A1 (en) | 1992-05-31 |
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