Hybridomas producing monoclonal antibodies specific for C-reactive protein and methods for detection of C-reactive protein

• US 5,500,345 A
• Filed: 12/16/1994
• Issued: 03/19/1996
• Est. Priority Date: 04/25/1989
• Status: Expired due to Term

• Current Assignee: Mitsubishi Chemical Medience Corporation (Mitsubishi Chemical Group Corp.)
• Original Assignee: Iatron Laboratories, Inc.
• Inventors: Kohno, Isao, Soe, Gilbu, Tanaka, Michiyo
• Primary Examiner(s): Hutzell, Paula K.
• Application Number:
  US08/357,540
• Time in Patent Office: 459 Days
• Field of Search: 530/388.2, 435/240.27, 435/172.2, 435/70.21, 435/7.1, 436/548
• US Class Current: 435/7.1
• CPC Class Codes: C07K 16/24 against cytokines, lymphokines or interferons
• CPC Class Codes: C07K 16/40 against enzymes

Abstract

Monoclonal antibodies specifically reacting with the side face of a C-reactive protein (CRP), i.e., monoclonal antibodies specifically reacting with the side face of a disk-like subunit of a C-reactive protein (CRP), hybridoma producing the monoclonal antibody, and methods for the use thereof are disclosed.

Claims

1. A monoclonal antibody specific for C-reactive protein wherein the monoclonal antibody can agglutinate latex particles to which said monoclonal antibody has been immobilized upon binding of said monoclonal antibody to C-reactive protein, wherein the monoclonal antibody is selected from the group consisting of monoclonal antibody CRP-1 produced by hybridoma cell line CRP-1 (FERM BP-2873), monoclonal antibody CRP-2 produced by hybridoma cell line CRP-2 (FERM BP-2874), monoclonal antibody CRP-3 produced by hybridoma cell line CRP-3 (FERM BP-2875), and monoclonal antibody CRP-4 produced by hybridoma cell line CRP-4 (FERM BP-2876).

2. A hybridoma cell line capable of producing a monoclonal antibody specific for C-reactive protein where the monoclonal antibody can agglutinate latex particles to which said monoclonal antibody has been immobilized upon binding of said monoclonal antibody to C-reactive protein wherein the cell line is selected from the group consisting of hybridoma cell line CRP-1 (FERM BP-2873, hybridoma cell line CRP-2 (FERM BP-2874, hybridoma cell line CRP-3 (FERM BP-2875, and hybridoma cell line CRP-4 (FERM BP-2876).

3. An immunoassay method for C-reactive the detection of protein using a monoclonal antibody specific for to C-reactive protein wherein the monoclonal antibody can agglutinate latex particles on which said monoclonal antibody has been immobilized upon binding of said monoclonal antibody to C-reactive protein which comprises the steps of (1) bringing the monoclonal antibody in contact with a sample under conditions which allow binding of the monoclonal antibody to C-reactive protein, and (2) detecting the immunospecific binding, wherein the monoclonal antibody is selected from the group consisting of monoclonal antibody CRP-1 produced by hybridoma cell line CRP-1 (FERM BP-2873), monoclonal antibody CRP-2 produced by hybridoma cell line CRP-2 (FERM BP-2874), monoclonal antibody CRP-3 produced by hybridoma cell line CRP-3 (FERM BP-2875), and monoclonal antibody CRP-4 produced by hybridoma cell line CRP-4 (FERM BP-2876).

4. An immunoassay method the detection of C-reactive protein according to claim 3, wherein the immunoassay is a latex agglutination assay.