Monoclonal antibodies to human chorionic gonadotropin and certain human and animal hormones of the adenohypophysis.

As a result of cell fusion between myeloma cell line X63.Ag8.653 and lymphocytes of BALB/c mice immunized with chorionic gonadotropin, growth hormone, prolactin, luteinizing hormone, and follicle-stimulating hormone from humans and various farm animals, 148 primary cultures of hybridoma cells were obtained. These hybridomas produced antibodies against the corresponding hormones. The specificities of the resultant monoclonal antibodies, and, in the case of monoclonal antibodies to human chorionic gonadotropin, targeting to certain antigenic regions within the hormone molecule, were characterized in detail. Monoclonal antibodies with specificities different from those previously described were identified.