title: Studies on chemically induced tumors in rats: I. Heterogeneity of tumor cells and establishment of syngeneic, tumor-specific cytotoxic T cell clones.
abstract: Sarcoma P1 was induced in DA rats by DMBA. Anti-P1 antibodies were produced in DA rats, purified via fixed tumor cells and used to induce anti-idiotypic antibodies in syngeneic rats. The anti-idiotypic antibodies were used to generate cytotoxic, P1 specific DA T cells in vitro. These cytotoxic T cells and P1 tumor cells were cloned by limiting dilution. Using the DA anti-P1 specific cytotoxic T cell clones, we were able to characterize 2 types of P1 tumor cell clones, namely those which were susceptible and those which were resistant to the P1 specific cytotoxic T cells. Cytotoxic T cell injected i.v. into syngeneic DA rats could not prevent the development of lethal P1 tumors.
mesh_terms: D000818:Animals; D000912:Antibodies, Neoplasm / Q000276:immunology; D000951:Antigens, Neoplasm / Q000276:immunology; D002460:Cell Line; D002999:Clone Cells / Q000276:immunology; D003601:Cytotoxicity Tests, Immunologic; D006801:Humans; D007130:Immunoglobulin Idiotypes / Q000276:immunology; D051379:Mice; D009368:Neoplasm Transplantation; D051381:Rats; D012513:Sarcoma, Experimental / Q000139:chemically induced / Q000276:immunology*; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*
chemical_list: D000912:Antibodies, Neoplasm; D000951:Antigens, Neoplasm; D007130:Immunoglobulin Idiotypes