title: Spontaneous transformation of rat cells after long-term in vitro cultivation and the "switch-on" of a new complement-fixing antigen.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens / Q000302:isolation & purification; D000956:Antigens, Viral / Q000302:isolation & purification; D001681:Biological Assay; D002458:Cell Fractionation; D002460:Cell Line / Q000276:immunology*; D002471:Cell Transformation, Neoplastic; D002478:Cells, Cultured; D003168:Complement Fixation Tests; D003429:Cross Reactions; D006168:Guinea Pigs / Q000276:immunology; D005779:Immunodiffusion; D009052:Leukemia Virus, Murine / Q000276:immunology; D009368:Neoplasm Transplantation; D011120:Polyomavirus / Q000276:immunology; D051381:Rats; D011919:Rats, Inbred Strains; D012513:Sarcoma, Experimental; D013997:Time Factors
chemical_list: D000941:Antigens; D000956:Antigens, Viral