title: T-cell helper circuits.
abstract: T helper cells specific for trinitrophenylated PC-binding myeloma and hybridoma antibodies are induced by priming with PC antigen, idiotype or anti-idiotypic antibody. These T helper cells are specific for a shared idiotope present on T15 and M167. Priming with the isolated heavy chains of T15 or M167, or the light chain of anti-T15 hybridoma antibody is equally effective in generating T helper cells. Evidently, the idiotope that is recognized by T cells is not dependent upon the conformation of the 7s Ig molecule. Collectively, these and other findings indicate the existence of a TH1-TH2-B cellular circuit which is based on the recognition of idiotopic determinants on T cell receptors. The implications of these findings in terms of network theory are explored.
mesh_terms: D000818:Animals; D000888:Antibodies, Anti-Idiotypic / Q000276:immunology; D000918:Antibody Specificity; D000941:Antigens / Q000276:immunology; D001402:B-Lymphocytes / Q000276:immunology; D007130:Immunoglobulin Idiotypes / Q000276:immunology*; D008211:Lymphocyte Cooperation; D051379:Mice; D011971:Receptors, Immunologic; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*
chemical_list: D000888:Antibodies, Anti-Idiotypic; D000941:Antigens; D007130:Immunoglobulin Idiotypes; D011971:Receptors, Immunologic