WO1991009612A1 - Inhibiteur de croissance de cellules tumorales - Google Patents
Inhibiteur de croissance de cellules tumorales Download PDFInfo
- Publication number
- WO1991009612A1 WO1991009612A1 PCT/JP1990/001678 JP9001678W WO9109612A1 WO 1991009612 A1 WO1991009612 A1 WO 1991009612A1 JP 9001678 W JP9001678 W JP 9001678W WO 9109612 A1 WO9109612 A1 WO 9109612A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell growth
- acid
- tumor cell
- growth inhibitor
- oligopeptide
- Prior art date
Links
- 239000003966 growth inhibitor Substances 0.000 title claims abstract description 17
- 230000004565 tumor cell growth Effects 0.000 title claims abstract description 16
- 102000015636 Oligopeptides Human genes 0.000 claims abstract description 12
- 108010038807 Oligopeptides Proteins 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 11
- ODHCTXKNWHHXJC-VKHMYHEASA-N 5-oxo-L-proline Chemical group OC(=O)[C@@H]1CCC(=O)N1 ODHCTXKNWHHXJC-VKHMYHEASA-N 0.000 claims abstract description 10
- 229940061720 alpha hydroxy acid Drugs 0.000 claims abstract description 9
- 150000001280 alpha hydroxy acids Chemical class 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- 150000005846 sugar alcohols Chemical class 0.000 claims abstract description 4
- ODHCTXKNWHHXJC-GSVOUGTGSA-N Pyroglutamic acid Natural products OC(=O)[C@H]1CCC(=O)N1 ODHCTXKNWHHXJC-GSVOUGTGSA-N 0.000 claims description 8
- ODHCTXKNWHHXJC-UHFFFAOYSA-N acide pyroglutamique Natural products OC(=O)C1CCC(=O)N1 ODHCTXKNWHHXJC-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 239000007859 condensation product Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 150000001413 amino acids Chemical class 0.000 claims description 2
- 150000001261 hydroxy acids Chemical class 0.000 claims description 2
- 125000000539 amino acid group Chemical group 0.000 abstract 1
- 206010028980 Neoplasm Diseases 0.000 description 9
- 201000011510 cancer Diseases 0.000 description 8
- 210000004027 cell Anatomy 0.000 description 8
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000012010 growth Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- JVTAAEKCZFNVCJ-REOHCLBHSA-N L-lactic acid Chemical compound C[C@H](O)C(O)=O JVTAAEKCZFNVCJ-REOHCLBHSA-N 0.000 description 4
- 239000003112 inhibitor Substances 0.000 description 4
- 230000004083 survival effect Effects 0.000 description 4
- 210000004881 tumor cell Anatomy 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002246 antineoplastic agent Substances 0.000 description 3
- 229940041181 antineoplastic drug Drugs 0.000 description 3
- 238000002054 transplantation Methods 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 231100000957 no side effect Toxicity 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 238000007920 subcutaneous administration Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 231100000820 toxicity test Toxicity 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LDVVTQMJQSCDMK-UHFFFAOYSA-N 1,3-dihydroxypropan-2-yl formate Chemical compound OCC(CO)OC=O LDVVTQMJQSCDMK-UHFFFAOYSA-N 0.000 description 1
- KVZLHPXEUGJPAH-UHFFFAOYSA-N 2-oxidanylpropanoic acid Chemical compound CC(O)C(O)=O.CC(O)C(O)=O KVZLHPXEUGJPAH-UHFFFAOYSA-N 0.000 description 1
- CYDQOEWLBCCFJZ-UHFFFAOYSA-N 4-(4-fluorophenyl)oxane-4-carboxylic acid Chemical compound C=1C=C(F)C=CC=1C1(C(=O)O)CCOCC1 CYDQOEWLBCCFJZ-UHFFFAOYSA-N 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 206010008342 Cervix carcinoma Diseases 0.000 description 1
- 206010053759 Growth retardation Diseases 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 241000699666 Mus <mouse, genus> Species 0.000 description 1
- 241000699660 Mus musculus Species 0.000 description 1
- 208000005718 Stomach Neoplasms Diseases 0.000 description 1
- 208000006105 Uterine Cervical Neoplasms Diseases 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 231100000215 acute (single dose) toxicity testing Toxicity 0.000 description 1
- 238000011047 acute toxicity test Methods 0.000 description 1
- 239000001045 blue dye Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 201000010881 cervical cancer Diseases 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012091 fetal bovine serum Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 206010017758 gastric cancer Diseases 0.000 description 1
- ZNYQHFLBAPNPRC-UHFFFAOYSA-N heptadecan-2-ol Chemical compound CCCCCCCCCCCCCCCC(C)O ZNYQHFLBAPNPRC-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N hydrochloric acid Substances Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 238000011580 nude mouse model Methods 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 210000001626 skin fibroblast Anatomy 0.000 description 1
- 239000001540 sodium lactate Substances 0.000 description 1
- 229940005581 sodium lactate Drugs 0.000 description 1
- 235000011088 sodium lactate Nutrition 0.000 description 1
- 201000011549 stomach cancer Diseases 0.000 description 1
- 230000004614 tumor growth Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0019—Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
-
- 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
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
-
- 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
- A61K47/30—Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
- A61K47/34—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
Definitions
- the present invention relates to a tumor cell growth inhibitor for animals including humans.
- Applicants have designated human human malignant tumor cell growth inhibitors as U.S. Patent Nos. 4,810,495 and 4,963,358.
- a method for producing a growth inhibitor of animal malignant tumor cells was proposed as US Patent No. 4,595,657.
- a human malignant tumor cell growth inhibitor comprising 2-hydroxy-1- (P-hydroxyphenyl) -15-methylhexan-3-one as disclosed in — 2 4 7 1 2 1 (2 4 7 1 2 1/1 9 9 5) describes a human malignant tumor cell growth inhibitor consisting of monoglyceride as disclosed in No. 5 (2 4 7 1 2 5 Z 1 9 9 5) Further, a human malignant tumor cell growth inhibitor comprising 2-heptadecanol was disclosed in Japanese Patent Application Laid-Open No. Hei 2 (1995) -24710 (1992). As suggested.
- the present invention relates to a substance which has not been proposed in the above-mentioned invention and which has no effect on the growth of a normal cell in a toxicity test using normal cells. , Growth stopped in the first few days of administration, tumor size was significantly reduced despite no subsequent administration, and tumors showed stable efficacy by subcutaneous administration, and were stable in vivo. It is intended to provide a cell growth inhibitor.
- the tumor cell growth inhibitor of the present invention comprises a low condensate and polymer of ⁇ -hydroxy acid, an oligopeptide containing at least one residue of pyroglutamic acid, and a stabilizer.
- the low-condensation and polymer of the above-mentioned hydroxy acid mainly consist of a 2 to 10 molecule condensation and polymerization of ⁇ -hydroxy acid and a polymerized compound and a metal salt thereof.
- the oligopeptide containing at least one residue of pyroglutamic acid is an oligopeptide comprising 2 to 8 amino acids, and at least one residue of pyroglutamic acid is used. It is composed of a compound and a metal salt thereof.
- the weight component ratio is as follows: low-condensation products and polymers of ⁇ -hydroxy acid: 10; oligopeptides containing at least one residue of pyroglutamic acid: 1 to 4; (sugar, (Sugar alcohol) ... consisting of 1 3
- FIG. 1 is a diagram showing the relationship between the dose of a tumor cell growth inhibitor of the present invention and the survival rate.
- oligolactic acid (a low-condensation product and polymer of ⁇ -hydroxypropionic acid)
- Lactic acid ( ⁇ -hydroxypropionic acid) has high chemical reactivity and solidifies when heated at 140 ° C for 100 minutes. When this is dissolved in water to make it alkaline, a precipitate is formed. Even if it is made acidic, it does not easily dissolve. When heated at 175 ° C for 2 hours, it does not dissolve in water but becomes a substance that dissolves in methanol. What is required here is that it is water-soluble and stable, and the following manufacturing methods satisfy the conditions.
- It is composed of a low-condensate and polymer of ⁇ -hydroxypropionic acid described in the above Examples, an oligopeptide containing at least one residue of pyroglutamic acid, and a sugar or a sugar alcohol.
- the stabilizer and the stabilizer are mixed at a weight ratio of 10: 1 to 4: 1 to 3 respectively, and a small amount of a metal salt of ⁇ -hydroxypropionic acid is further added as a catalyst to thereby suppress the growth of tumor cells. Is prepared.
- the administration was repeated 10 times, and the control group was similarly administered with 0.5 ml of physiological saline. Thereafter, the administration was stopped, and the tumor was removed and weighed 7 weeks after transplantation.
- Table 3 shows the tumor weights of the control group and the experimental group, each of which was administered twice a day for a total of 20 times in the same manner as in (A).
- Inhibition rate 91.4% Method The same experiment as in (A) was performed using MK N-1 cells, an established cell line derived from human gastric cancer. Results: FIG. 4 shows the tumor weights of the control group and the experimental group in each of the five cases.
- the tumor cell growth inhibitor of the present invention is a low-molecular-weight derivative of a living substance or a food additive, and has no effect on the growth thereof in a toxicity test using normal cells. Furthermore, in an experiment to suppress the growth of malignant tumor cells that had been transferred to nude mice, the growth stopped several days after the start of administration, and the tumor shrank significantly despite the subsequent administration. It is also a stable substance in the body, as it shows stable efficacy when administered subcutaneously. Therefore, no side effects were observed in the course of animal experiments, and this drug is suitable as an effective and safe anticancer drug.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Medicinal Chemistry (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Engineering & Computer Science (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Immunology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biochemistry (AREA)
- Gastroenterology & Hepatology (AREA)
- Inorganic Chemistry (AREA)
- Dermatology (AREA)
- Molecular Biology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Medicinal Preparation (AREA)
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE69032158T DE69032158T2 (de) | 1989-12-25 | 1990-12-21 | Wachstumsinhibitor von tumorzellen |
KR1019910700779A KR920700671A (ko) | 1989-12-25 | 1990-12-21 | 종양세포 증식 억제제 |
EP91900944A EP0460232B1 (en) | 1989-12-25 | 1990-12-21 | Tumor cell growth inhibitor |
US07/700,158 US5972879A (en) | 1989-12-25 | 1990-12-21 | Inhibiting agent against the proliferation of tumor cells |
KR1019910700943A KR920701318A (ko) | 1989-12-22 | 1990-12-21 | 폴리이미드 성형품 |
SU915010005A RU2034564C1 (ru) | 1989-12-25 | 1991-08-23 | Способ получения ингибитора пролиферации опухолевых клеток |
NO91913322A NO913322L (no) | 1989-12-25 | 1991-08-23 | Inhiberingsmiddel mot proliferasjon av tumorceller. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1/332870 | 1989-12-25 | ||
JP1332870A JP2997488B2 (ja) | 1989-12-25 | 1989-12-25 | 腫瘍細胞増殖抑制剤 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1991009612A1 true WO1991009612A1 (fr) | 1991-07-11 |
Family
ID=18259725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1990/001678 WO1991009612A1 (fr) | 1989-12-22 | 1990-12-21 | Inhibiteur de croissance de cellules tumorales |
Country Status (13)
Country | Link |
---|---|
US (1) | US5972879A (ja) |
EP (1) | EP0460232B1 (ja) |
JP (1) | JP2997488B2 (ja) |
KR (1) | KR920700671A (ja) |
AT (1) | ATE164075T1 (ja) |
AU (1) | AU635802B2 (ja) |
CA (1) | CA2044621A1 (ja) |
DE (1) | DE69032158T2 (ja) |
DK (1) | DK0460232T3 (ja) |
ES (1) | ES2113370T3 (ja) |
NO (1) | NO913322L (ja) |
RU (1) | RU2034564C1 (ja) |
WO (1) | WO1991009612A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2385318A1 (en) | 1999-09-20 | 2001-03-29 | Amato Pharmaceutical Products, Ltd. | Method for producing cyclic lactic acid oligomer |
JP2002275256A (ja) * | 2001-03-19 | 2002-09-25 | Tendou Seiyaku Kk | 乳酸オリゴマーの製造方法 |
RU2283654C1 (ru) * | 2005-03-30 | 2006-09-20 | Борис Владимирович Афанасьев | Способ получения ростовых факторов белковой природы, ростовой фактор белковой природы и ингибитор пролиферации фибробластов |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141544A (ja) * | 1983-01-27 | 1984-08-14 | チバ−ガイギ− アクチエンゲゼルシヤフト | ラクタムペプチド及びその製造方法、並びに該ペプチドを含有する医薬 |
JPS59141559A (ja) * | 1983-01-27 | 1984-08-14 | チバ−ガイギ− アクチエンゲゼルシヤフト | ラクタムペプチド及びその製造方法並びに該ペプチドを含有する医薬 |
JPS6143119A (ja) * | 1984-08-01 | 1986-03-01 | ヘキスト・アクチエンゲゼルシヤフト | マイクロカプセルおよびそれらの製法ならびに注射組成物 |
JPS6163613A (ja) * | 1984-09-04 | 1986-04-01 | Mitsui Toatsu Chem Inc | 顆粒状に調整された徐放性製剤 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4211769A (en) * | 1977-08-24 | 1980-07-08 | Takeda Chemical Industries, Ltd. | Preparations for vaginal administration |
EP0127426A1 (en) * | 1983-05-23 | 1984-12-05 | Takeda Chemical Industries, Ltd. | Percutaneous pharmaceutical compositions for external use |
JPS6023326A (ja) * | 1983-07-18 | 1985-02-05 | Takeda Chem Ind Ltd | ペプチド含有経口投与製剤 |
-
1989
- 1989-12-25 JP JP1332870A patent/JP2997488B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-21 DE DE69032158T patent/DE69032158T2/de not_active Expired - Fee Related
- 1990-12-21 WO PCT/JP1990/001678 patent/WO1991009612A1/ja active IP Right Grant
- 1990-12-21 DK DK91900944.9T patent/DK0460232T3/da active
- 1990-12-21 KR KR1019910700779A patent/KR920700671A/ko not_active Application Discontinuation
- 1990-12-21 AT AT91900944T patent/ATE164075T1/de not_active IP Right Cessation
- 1990-12-21 EP EP91900944A patent/EP0460232B1/en not_active Expired - Lifetime
- 1990-12-21 CA CA002044621A patent/CA2044621A1/en not_active Abandoned
- 1990-12-21 US US07/700,158 patent/US5972879A/en not_active Expired - Fee Related
- 1990-12-21 ES ES91900944T patent/ES2113370T3/es not_active Expired - Lifetime
- 1990-12-21 AU AU69127/91A patent/AU635802B2/en not_active Ceased
-
1991
- 1991-08-23 RU SU915010005A patent/RU2034564C1/ru not_active IP Right Cessation
- 1991-08-23 NO NO91913322A patent/NO913322L/no unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59141544A (ja) * | 1983-01-27 | 1984-08-14 | チバ−ガイギ− アクチエンゲゼルシヤフト | ラクタムペプチド及びその製造方法、並びに該ペプチドを含有する医薬 |
JPS59141559A (ja) * | 1983-01-27 | 1984-08-14 | チバ−ガイギ− アクチエンゲゼルシヤフト | ラクタムペプチド及びその製造方法並びに該ペプチドを含有する医薬 |
JPS6143119A (ja) * | 1984-08-01 | 1986-03-01 | ヘキスト・アクチエンゲゼルシヤフト | マイクロカプセルおよびそれらの製法ならびに注射組成物 |
JPS6163613A (ja) * | 1984-09-04 | 1986-04-01 | Mitsui Toatsu Chem Inc | 顆粒状に調整された徐放性製剤 |
Also Published As
Publication number | Publication date |
---|---|
NO913322D0 (no) | 1991-08-23 |
AU635802B2 (en) | 1993-04-01 |
DK0460232T3 (da) | 1998-04-14 |
JP2997488B2 (ja) | 2000-01-11 |
EP0460232A4 (en) | 1993-03-17 |
EP0460232B1 (en) | 1998-03-18 |
ATE164075T1 (de) | 1998-04-15 |
NO913322L (no) | 1991-08-23 |
ES2113370T3 (es) | 1998-05-01 |
KR920700671A (ko) | 1992-08-10 |
DE69032158T2 (de) | 1998-08-06 |
CA2044621A1 (en) | 1991-06-26 |
RU2034564C1 (ru) | 1995-05-10 |
DE69032158D1 (de) | 1998-04-23 |
US5972879A (en) | 1999-10-26 |
EP0460232A1 (en) | 1991-12-11 |
AU6912791A (en) | 1991-07-24 |
JPH03193731A (ja) | 1991-08-23 |
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