ANIMAL MUS MUSCULUS HYBRID CELL CLONE L-PRODUCER OF MONOCLONAL CHOLERA TOXIN ANTIBODIES

摘要

FIELD: medicine. ^ SUBSTANCE: there is produced a new CT-F5/H3 hybrid cell clone producing monoclonal cholera toxin antibody (MCAB) in the environment of cell culture and abdominal cavity of syngeneic animals. The clone is produced by the fusion of mouse myeloma SP-2/0 cells with popliteal lymph node cells of BALB/c mice immunised with a commercial preparation of cholera toxin (SIGMA) in posterior pads. A fusing agent is polyethylene glycol of molecular weight 4000. Hybridoma selection has been performed on Dulbecco modified Eagle's medium with bovine foetal serum and hypoxantine-aminopterin-thymidine added. Hybridoma synthesises MCAB specifically interacting with cholera toxin and not interacting with thermolabile E.coli toxin. The antibody titre reaches 1:20000 1:40000 in the cultural fluid, 1:4000000 in ascitic. ^ EFFECT: antibodies can be used for designing immunobiological systems of cholera toxin detection exceeding available analogues in sensitivity. ^ 2 dwg, 4 ex