title: Analysis of cross-reactive antigen-specific T cell clones. Specific recognition of two major histocompatibility complex (MHC) and two non-MHC antigens by a single clone.
abstract: Two T cell clones, one specific for I-Es/d plus myelin basic protein (BP) and another specific for I-Ak plus influenza virus have been demonstrated to cross-react with DBA/2 cells. Genetic and serological analyses have shown that each clone recognizes its respective priming antigen in association with self-major histocompatibility complex (MHC) determinants and each recognizes DBA/2 minor H antigens in association with allo I-Ad MHC antigens. Further analysis of these clones suggests (a) that the allo I-Ad MHC epitopes recognized by these clones are not shared with self-I-A epitopes, (b) that the virus or BP antigens do not cross-react with DBA/2 minor H antigens, (c) that these clones recognize different determinants on the DBA/2 minor H antigens, and (d) that there is a requirement for a specific association between the different MHC antigens and the non-MHC antigens to stimulate these clones. This specific associative recognition argues strongly for the "altered self" hypothesis.
mesh_terms: D000818:Animals; D000941:Antigens / Q000276:immunology*; D000956:Antigens, Viral / Q000276:immunology; D002460:Cell Line; D002999:Clone Cells / Q000276:immunology; D000939:Epitopes / Q000276:immunology; D006649:Histocompatibility Antigens / Q000276:immunology*; D000949:Histocompatibility Antigens Class II / Q000276:immunology; D009980:Influenza A virus / Q000276:immunology; D007519:Isoantigens / Q000276:immunology; D051379:Mice; D008807:Mice, Inbred BALB C / Q000276:immunology; D008811:Mice, Inbred DBA / Q000276:immunology; D004676:Myelin Basic Protein / Q000276:immunology; D051381:Rats; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000941:Antigens; D000956:Antigens, Viral; D000939:Epitopes; D006649:Histocompatibility Antigens; D000949:Histocompatibility Antigens Class II; D007519:Isoantigens; D004676:Myelin Basic Protein