title: Anti-idiotypic treatment of BALB/c mice induces CRIa-bearing suppressor cells with altered Igh-restricted function.
abstract: The ABA-specific antibody response of A/J mice (Igh Ie) is dominated by the CRIa idiotype. In contrast, BALB/c mice (Igh Ia) do not produce CRIa-bearing anti-ABA antibodies after antigenic challenge. We have shown previously that treatment with rabbit anti-CRIa (R-anti-CRIa) induces the expression of "CRIa-like" anti-arsonate antibodies in BALB/c mice. In the present report, we demonstrate that R-anti-CRIa treatment enables BALB/c mice to respond to A/J ABA-specific first-order suppressor molecules (TsF1). Manipulated BALB/c also produced CRIa bearing ABA-specific immune response. Thus, R-anti-CRIa treatment induces a change in the characteristic Igh restriction pattern typically seen in this system. These data suggest that Igh restriction in the ABA-specific T suppressor cell pathway is the result of CRIa+ dominance in the T suppressor cell response of A/J mice. The effectiveness of idiotypic manipulation in inducing the expression of a given idiotype at both the B cell and T suppressor cell levels is discussed.
mesh_terms: D000818:Animals; D000888:Antibodies, Anti-Idiotypic / Q000276:immunology*; D001391:Azo Compounds / Q000276:immunology*; D003429:Cross Reactions; D003602:Cytotoxicity, Immunologic; D006968:Hypersensitivity, Delayed / Q000276:immunology; D007108:Immune Tolerance; D007143:Immunoglobulin Heavy Chains / Q000276:immunology; D007130:Immunoglobulin Idiotypes / Q000276:immunology*; D051379:Mice; D008815:Mice, Inbred Strains / Q000276:immunology; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*; D010132:p-Azobenzenearsonate / Q000276:immunology*
chemical_list: D000888:Antibodies, Anti-Idiotypic; D001391:Azo Compounds; D007143:Immunoglobulin Heavy Chains; D007130:Immunoglobulin Idiotypes; D010132:p-Azobenzenearsonate