WO1993006232A1 - HUMAN MONOCLONAL ANTIBODY AGAINST GLYCOPROTEIN IIb/IIIa - Google Patents
HUMAN MONOCLONAL ANTIBODY AGAINST GLYCOPROTEIN IIb/IIIa Download PDFInfo
- Publication number
- WO1993006232A1 WO1993006232A1 PCT/JP1992/001181 JP9201181W WO9306232A1 WO 1993006232 A1 WO1993006232 A1 WO 1993006232A1 JP 9201181 W JP9201181 W JP 9201181W WO 9306232 A1 WO9306232 A1 WO 9306232A1
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- WO
- WIPO (PCT)
- Prior art keywords
- human
- minutes
- buffer
- monoclonal antibody
- platelet aggregation
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/28—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
- C07K16/2839—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the integrin superfamily
- C07K16/2848—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants against the integrin superfamily against integrin beta3-subunit-containing molecules, e.g. CD41, CD51, CD61
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
Definitions
- the present invention relates to a human monoclonal antibody against human glycoprotein (Glycoprotein) ⁇ b / Ia (GPIb / Ia) (hereinafter referred to as MCA) and a hybridoma producing the same.
- MCA human monoclonal antibody against human glycoprotein
- MCA monoclonal antibody against human glycoprotein ⁇ b / Ia
- vWF von Willebrand factor
- the receptor on platelets for VWF in the adhesive is Glycoprotein lb (GPIb), and platelet aggregation is due to the Glycoprotein in inb / Ia (GP ⁇ b / Is fibulinogen
- antiplatelet agents that suppress platelet functions such as platelet adhesion, aggregation, and release and experimental thrombus formation.
- many of these have platelet aggregation inhibitory ability as one aspect of the action of the drug, have low specificity, and have problems in side effects.
- aspirin also known as an analgesic antipyretic
- has gastrointestinal bleeding There is a prostacyclin click Li emissions will keep in synthesis inhibition side effects in Ronbokisan A 2 and the vascular endothelium.
- side effects such as gastrointestinal symptoms, liver damage and leukopenia have been observed.
- human-derived MCA in order to be administered safely to humans and to be useful for the prevention and treatment of thrombosis, human-derived MCA, not mouse-derived, is essential.
- human-derived MCA is composed of human B-lymphocytes, which have the ability to produce antibodies having GPII b / na-specific and platelet aggregation-inhibiting activity, and lymphoid cells such as myeloma cells. It is produced from hybridoma obtained by the fusion of E. coli, or is produced from a lymphoblastoid cell obtained by transforming the above human B lymphocyte with EB virus.
- the present invention provides a human monoclonal antibody having the ability to bind to human platelet GPII bZHa and inhibit human platelet aggregation.
- the present invention also relates to a hybridoma producing the monoclonal antibody or a progeny thereof, which is formed by fusing human lymphocytes with mouse myeloma cells. About.
- the present invention also relates to the method for producing the monoclonal antibody, which comprises culturing the hybridoma.
- the present invention also relates to a method for producing a hybridoma, which comprises selecting a hybridoma producing the monoclonal antibody.
- Figure 1 is a graph showing the binding of human type M CA of the present invention with respect to C a + + GP ⁇ b ⁇ a in the presence or absence of a.
- (A) Indicates the binding of ICF 2 C8, and (b) indicates the binding of IAD 2-1.
- FIG. 2 is a graph showing the effect of the human MCA of the present study on the binding between F bg and GP ⁇ b ⁇ a.
- FIG. 3 is a graph showing the effect of the human MCA of the present invention on the binding between vWF and GPE bZHIa.
- FIG. 4 is a chart of flowcyttometry showing the binding ability of ICF2C8 to GPHb / IEa on the platelet surface.
- A when no antibody was reacted,
- B when anti-GPH bZDI a human MCA was not reacted and only FITC-labeled anti-human IgM goat antibody was reacted with platelets
- C shows the case where the reaction with FITC-labeled anti-human IgM goat antibody was carried out after the reaction with ICF 2 C8.
- FIG. 5 is a diagram showing platelet aggregation inhibitory activity of ICF 2 C8. BEST MODE FOR CARRYING OUT THE INVENTION
- the human lymphocytes used in the present invention are contained in spleen, lymph node, peripheral blood, bone marrow, tongue, adenoid, etc. of patients with idiopathic thrombocytopenia (hereinafter referred to as ITP).
- ITP idiopathic thrombocytopenia
- any material can be used, but preferably a lymph node, spleen, or tonsil from an ITP patient.
- strains include P3X65Ag8 strains of PAL-BZC mice and P3-NS1Z1-A g4—1 strain, P3X63AgUl strain, SP2ZOA gl4 strain, P3x63Ag 8.6.5.3 strain, MPC 1 1—45.6.TG 1. There are 7 shares and SP-1 shares.
- the human trimer sphere prior to fusion of the human lymphocyte and the mouse myeloma cell, the human trimer sphere is trapped and the mouse MCA against the human trimer sphere [for example, Ort 'Diagnostic Stake (Orth. Diagnostics).
- T lymphocytes by treating with sheep erythrocytes treated with OKT3] or with Fic011 treated with AII.
- a human solid lymphatic tissue is excised by surgery from an ITP patient, and the excised tissue is gently loosened with scissors and a female to obtain a cell dispersion. The following two methods are used to remove T-member spheres from the cell dispersion.
- the cell dispersion is layered on the Fic011-Paque layer, and the lymphocytes are separated by centrifugation. Furthermore, the cells are treated with complement 1Z2 volume and anti-human T lymphocyte ′ mouse MCA, the T lymphocyte is destroyed in advance, and the remaining B lymphocyte is centrifuged.
- the cell dispersion is mixed with AET-treated sheep erythrocytes, and B cells are separated by Fic01 1-Paque centrifugation. When these methods are used, the generation rate of hybridomas is higher than when untreated spheres are used.
- human lymphocytes obtained in this way are fused with mouse ⁇ myeloma cells.
- human lymphocytes and myeloma cells are mixed at a ratio of 10: 1 to 1: 100, preferably 1: 1 to 1:10, and a suitable cell fusion solution, for example, about 35%
- a suitable cell fusion solution for example, about 35%
- poly (ethylene glycol) molecular weight of about 1,000 to 6,000
- RPMI 164 containing about 7.5% dimethyl sulfoxide
- a hybridoma producing the desired antibody by checking the binding activity of the antibody produced in the culture to GPE b / ba and the binding inhibitory activity of Fbg. GPE bZBIa Only pick out. Then, the hybridoma is taken out and cloned by limiting dilution to establish a subclone stably producing MCA.
- the thus obtained mouse-human hybridoma producing the anti-GPKbZIIIa′tMCA of the present invention can be stored frozen.
- the human MCA of the present invention can be obtained from the culture supernatant.
- the hybridoma can be transplanted into an animal to form a tumor, and human MCA can be obtained from the ascites or serum.
- ICF2C8 had the following characteristics.
- the human MCA of the present invention had a subclass of IgM, and its light weight was S.
- the human monoclonal antibody of the present invention is expected as an active ingredient of a platelet aggregation inhibitor for preventing or treating thrombosis, for example.
- a platelet aggregation inhibitor for example.
- the spleen removed from the ITP patient by surgery is loosened finely with scissors and a stool, and the medium A (RPMI 1640 — 10% fetal serum (FCS) — 2 ⁇ glutamin, 1 mM sodium birubate 20 ⁇ g / ffl £ L — Serine 0.05 u / fflfi Human insulin (80 ⁇ m / ⁇ pentamycin sulfate) was suspended.
- This ce11 cell suspension was overlaid on the Fico11-Paque solution, and centrifuged at 1,500 rpm for 20 minutes.
- the cells that had accumulated on the Fic011-Paque were removed, and one fraction was washed with phosphate buffer (PBS) and centrifuged twice with RPMI 1640. to obtain a re-Nba spheres suspended in l X 1 0 7 cells / mi in 0.
- PBS phosphate buffer
- Human GP ⁇ b / DIa was diluted to 2; g / ⁇ with A buffer (127 mM Ca ++ / 90 mM Mg ++ / PBS (pH 7.2)), and diluted with 96
- the plate was put into a ELISA plate at 50 ⁇ £ Zwe 11 and allowed to stand at 4′C. After that, the GP II b / Ha solution was removed, 10% FCS / A buffer was added at 200 ° C. for 11 minutes, and then 37 minutes and 120 minutes. After washing three times with 0.02% Hibiden (registered trademark) (ICI), the culture supernatant of Hypridoma was added at 50 £ / 61, and reacted for 37 minutes and 60 minutes.
- Hibiden registered trademark
- anti-GPH bZlE a mouse MCA diluted to 500 ngZ with 10% FCS / A buffer (Serotec CA 468) was added at 50 / £ / we 11 and reacted for 37 minutes and 60 minutes.
- 0.0 0 After washing 3 times with 2% Hibiden placed l O ⁇ FC SZA buffer at 1 0 4 fold diluted Peruokishitaze labeled anti-mouse I g G antibody (TAGO Co.) in SO i / jg / well, 3 7 And reacted for 60 minutes.
- the hybridoma that showed a positive result in the screening in (2) was closed as follows. First, a 96-well flat plate was inoculated with only 2 ⁇ 10 4 mouse mucosal exudate cells. Then, 1 hour to 1 day later, the medium was removed, and the hybridoma was inoculated into 96-wells with 10 cell wells. HT medium was used for the first clone and medium A was used for the second cloning. After 2-3 weeks of culture, the antibody activity was measured, and positive clones were picked up.
- Hypridoma ICF2C8 that stably produces MCA having the above properties (Table 1). .
- it does not show the binding inhibitory activity of Fbg'GPHbnoHa, it also stably produces MCA by cloning for seven types of hybridomas that bind to GPbba. It was established as a hybrid vehicle (Table 1).
- Hypuri Domas Cell Line ICF 2C8 was obtained by the Institute of Microbial Engineering, 1-3-1 Higashi, Tsukuba, Ibaraki, Japan, based on the Budapest Treaty. Deposited on October 8, 1980 as FERMBP No. 3656 (FERMBP—3596).
- the Con A Sepharose was washed with 1 MNaC 1/20 mM NaPi (pH 7.2) and 1 MNaC 1/50 mMAcNa ( PH 4.0) in that order. Elution was carried out with ⁇ -methyl mannose / 0.5 MN ac 1/20 mM Na P i ( P H7.2).
- the eluted fraction was concentrated with Amicon (YM10 membrane), and then applied to Sepharose CL-6B equilibrated with PBS.
- the fraction containing 1 & 3 ⁇ 44 was collected as 1 CF2C8 (5 mg ).
- ICF2C8 obtained by this method was confirmed to be more than 90% pure IgM by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). .
- the purified GPI b ZHIa was diluted to 1 ⁇ & / ⁇ with A buffer, added to a 96-well ELIS ⁇ plate at 100 £ / we 11, and left to stand at 4'C. Discarded GP ⁇ b / M a solution was placed 2% BS AZB buffer one (1 O mME DTA / PBS to (P H7.
- ICF 2 C 8 is C a + + present is only the concentration-dependent manner absorbance increases under, C a + + is not increased at all absorbance in the absence. Than this, ICF 2 C 8 are, C a + + only in C a + + absence bound to GP [pi b / la in the presence was found not to bind.
- IAD 2 - 1 was found to bind with C a + + related engagement as Ku in the presence or absence GP II b / ffi a.
- Example 4 The binding of human MCA to the binding of F b g to GP II b
- anti-GPU b Z BI diluted to 500 ng / with 10% FCS / A buffer to measure the amount of bound GPD b / Ia a
- a mouse-type MCA (MCA468, manufactured by Serotec) was placed in SOit / Zwell and reacted at 37'C for 60 minutes.
- 1 0% FCS / A buffer 1 0 4 fold diluted Peruokishidaze labeled anti-mouse I g G antibody (TAGO Co.) at 5 0 ⁇ / well. Put 3 7 The reaction was performed for 60 minutes. Thereafter, five surfaces were washed with 0.002% hibiden.
- ZIEa mouse type MCA (Serotec, MCA468) was charged in 1 and allowed to react for 37 minutes and 60 minutes.
- FIG. 3 shows the relationship between the added anti-GP GPb / Ia human MCA concentration and the absorbance at 405 nm obtained by the above method.
- anti-GPIIbZlIIa-human MCAICF2C8 reduced the absorbance in a concentration-dependent manner, and reduced the absorbance to 11% at 10 ⁇ /.
- ICF 2C8 inhibited 89% of the binding between vWF and GPlbZDla at an antibody concentration of 89%.
- the anti-GP ⁇ b / Dla human MCAIAD 2 — 1 did not harm the binding of vWF to GPH bZnia.
- a FITC-labeled anti-human IgM goat antibody was reacted at room temperature for 30 minutes. After the reaction was centrifuged (250 rpm, 10 minutes), the precipitated platelets were washed once with buffer 1A. The platelets were resuspended in buffer A and subjected to ⁇ 10wcyt0metry. Fig. 4 shows the results.
- FIG. 4 shows that no antibody was reacted, (b) did not react with the anti-GPE bZIEa human monoclonal antibody and only FITC-labeled anti-human IgM goat antibody was used.
- (c) is a flow cytometry chart when reacting with FITC-labeled anti-human IgM goat antibody after reacting with ICF 2 C8. From FIG. 4, it can be seen that FITC-labeled anti-human IgM goat antibody does not bind to the platelet surface under the present conditions because the positions of the beaks in (a) and (b) remain unchanged.
- the monoclonal antibody and the active fragment thereof of the present invention are expected to be used as an active ingredient of a platelet aggregation inhibitor for preventing or treating thrombosis.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU25834/92A AU659873B2 (en) | 1991-09-17 | 1992-09-16 | Human monoclonal antibody against glycoprotein IIb/IIIa |
EP92920009A EP0557535B1 (en) | 1991-09-17 | 1992-09-16 | HUMAN MONOCLONAL ANTIBODY AGAINST GLYCOPROTEIN IIb/IIIa |
KR1019930701402A KR930702536A (ko) | 1991-09-17 | 1992-09-16 | 당단백질 IIb/IIIa에 대한 사람 모노클론 항체 |
DE69223606T DE69223606T2 (de) | 1991-09-17 | 1992-09-16 | Humaner monoklonaler antikörper gegen glycoprotein-iib/iiia |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3/262640 | 1991-09-17 | ||
JP26264091 | 1991-09-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1993006232A1 true WO1993006232A1 (en) | 1993-04-01 |
Family
ID=17378596
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1992/001181 WO1993006232A1 (en) | 1991-09-17 | 1992-09-16 | HUMAN MONOCLONAL ANTIBODY AGAINST GLYCOPROTEIN IIb/IIIa |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0557535B1 (ja) |
JP (1) | JP2776634B2 (ja) |
KR (1) | KR930702536A (ja) |
AU (1) | AU659873B2 (ja) |
DE (1) | DE69223606T2 (ja) |
WO (1) | WO1993006232A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5672585A (en) * | 1990-04-06 | 1997-09-30 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US5780303A (en) * | 1990-04-06 | 1998-07-14 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US6017877A (en) * | 1990-04-06 | 2000-01-25 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US6521594B1 (en) | 1990-04-06 | 2003-02-18 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
JP2005514009A (ja) * | 2001-10-05 | 2005-05-19 | アフィメート テラポイティクス アーゲー | 血小板凝集を阻害するためのヒト起源の抗体 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2293693A1 (en) * | 1997-06-06 | 1998-12-10 | Asat Ag Applied Science & Technology | Anti-gpiib/iiia recombinant antibodies |
US8455627B2 (en) | 2001-10-05 | 2013-06-04 | Affimed Therapeutics, Ag | Human antibody specific for activated state of platelet integrin receptor GPIIb/IIIa |
CN1230447C (zh) | 2002-07-17 | 2005-12-07 | 阮长耿 | 识别血小板膜糖蛋白的单克隆抗体及其在抗血栓治疗中的应用 |
WO2011112549A2 (en) * | 2010-03-10 | 2011-09-15 | Emory University | Temperature sensitive conjugate compositions, and uses related thereto |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0449879A1 (en) * | 1988-11-25 | 1991-10-09 | Centocor, Inc. | Heterobifunctional antibodies having specificity for platelets and thrombolytic agents |
WO1990006134A1 (en) * | 1988-12-01 | 1990-06-14 | Centocor, Inc. | Human platelet-specific antibodies |
EP0465556B1 (en) * | 1989-04-03 | 1995-06-28 | Centocor, Inc. | Platelet specific immunoconjugates |
-
1992
- 1992-09-16 AU AU25834/92A patent/AU659873B2/en not_active Ceased
- 1992-09-16 DE DE69223606T patent/DE69223606T2/de not_active Expired - Fee Related
- 1992-09-16 WO PCT/JP1992/001181 patent/WO1993006232A1/ja active IP Right Grant
- 1992-09-16 EP EP92920009A patent/EP0557535B1/en not_active Expired - Lifetime
- 1992-09-16 KR KR1019930701402A patent/KR930702536A/ko not_active Application Discontinuation
- 1992-09-16 JP JP5505954A patent/JP2776634B2/ja not_active Expired - Fee Related
Non-Patent Citations (5)
Title |
---|
°BLOOD, vol. 68, no. 3, 1986; B.S. COLLER et al., pp. 783-786/ * |
°BLOOD, vol. 70, no. 1, 1987; D.J. NUGENT et al., pp. 16-22/ * |
°CANCER & CHEMOTHERAPY, vol. 10, 1983; N. TOMOKI et al., pp. 2575-2581/ * |
°THROMBOSIS RESEARCH, vol. 38, no. 5, 1985; D. HEINRICH et al., pp. 547-560/ * |
See also references of EP0557535A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5672585A (en) * | 1990-04-06 | 1997-09-30 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US5780303A (en) * | 1990-04-06 | 1998-07-14 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US6017877A (en) * | 1990-04-06 | 2000-01-25 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
US6521594B1 (en) | 1990-04-06 | 2003-02-18 | La Jolla Cancer Research Foundation | Method and composition for treating thrombosis |
JP2005514009A (ja) * | 2001-10-05 | 2005-05-19 | アフィメート テラポイティクス アーゲー | 血小板凝集を阻害するためのヒト起源の抗体 |
JP2010029203A (ja) * | 2001-10-05 | 2010-02-12 | Affimed Therapeutics Ag | 血小板凝集を阻害するためのヒト起源の抗体 |
Also Published As
Publication number | Publication date |
---|---|
AU659873B2 (en) | 1995-06-01 |
EP0557535A4 (ja) | 1994-02-16 |
DE69223606T2 (de) | 1998-07-16 |
DE69223606D1 (de) | 1998-01-29 |
AU2583492A (en) | 1993-04-27 |
JP2776634B2 (ja) | 1998-07-16 |
EP0557535B1 (en) | 1997-12-17 |
KR930702536A (ko) | 1993-09-09 |
EP0557535A1 (en) | 1993-09-01 |
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