Antigen- and receptor-driven regulatory mechanisms. IV. Idiotype-bearing I-J+ suppressor T cell factors induce second-order suppressor T cells which express anti-idiotypic receptors.
Administration of azobenzenearsonate (ABA)-coupled syngeneic spleen cells intravenously to A/J mice leads to the generation of suppressor T cells (Ts1) which exhibit specific binding to ABA-bovine serum albumin (BSA)-coated dishes. These Ts1 share idiotypic determinants with the major cross-reactive idiotype (CRI) of the anti-ABA antibodies of A/J mice, and also produce a soluble suppressor factor (TsF) bearing CRI and I-J subregion-coded determinants. Injection of this TsF into naive A/J mice elicits a second set of specific suppressor cells (Ts2) which are not lysed by anti-CRI antibody plus C, and which do not bind to ABA-BSA-coated dishes. However, in contrast with Ts1, these Ts2 do bind to plates bearing CRI+ anti-ABA immunoglobulin. Thus, Ts2 exhibit anti-idiotypic specificity. These data indicate that antigen elicits the production of a soluble T cell product bearing both variable portion of the Ig heavy chain (VH) and I-J subregion-coded determinants which serves to communicate between T cell subsets to establish an idiotype-anti-idiotype regulatory pathway.
D000818:Animals; D000888:Antibodies, Anti-Idiotypic; D000954:Antigens, Surface / Q000032:analysis; D003165:Complement System Proteins / Q000378:metabolism; D003602:Cytotoxicity, Immunologic; D005260:Female; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007111:Immunity, Cellular; D007130:Immunoglobulin Idiotypes; D007519:Isoantigens / Q000032:analysis; D008222:Lymphokines / Q000276:immunology*; D008285:Major Histocompatibility Complex; D051379:Mice; D011971:Receptors, Immunologic; D013601:T-Lymphocytes / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*
D000888:Antibodies, Anti-Idiotypic; D000954:Antigens, Surface; D007130:Immunoglobulin Idiotypes; D007519:Isoantigens; D008222:Lymphokines; D011971:Receptors, Immunologic; D003165:Complement System Proteins