title: Induction of high titers of anti-IgE by immunization of inbred mice with syngeneic IgE.
abstract: We have generated high titers (up to 1 mg/ml) of antibodies to isotypic determinants of IgE by immunization of A/J mice with syngeneic monoclonal IgE conjugated to keyhole limpet hemocyanin. As much as 3 mg of anti-idiotypic antibodies per ml was induced at the same time. In contrast to conventional rheumatoid factors, the anti-isotypic antibodies are of moderately high affinity (10(7)-10(8) M-1). Assays of the anti-IgE antisera indicated the presence of IgE, both free and in the form of immune complexes; the latter values are minimum estimates owing to masking of isotypic determinants. Regulatory effects of these high titers of anti-IgE can now be investigated. Such studies will be facilitated by the availability of monoclonal, syngeneic anti-IgE antibodies.
mesh_terms: D000818:Animals; D000888:Antibodies, Anti-Idiotypic / Q000096:biosynthesis*; D000911:Antibodies, Monoclonal / Q000276:immunology; D000918:Antibody Specificity; D000936:Antigen-Antibody Complex / Q000032:analysis; D000939:Epitopes / Q000276:immunology; D007114:Immunization; D007073:Immunoglobulin E / Q000096:biosynthesis / Q000276:immunology*; D007132:Immunoglobulin Isotypes / Q000276:immunology; D007075:Immunoglobulin M / Q000032:analysis; D051379:Mice; D008805:Mice, Inbred A / Q000276:immunology; D008807:Mice, Inbred BALB C / Q000276:immunology
chemical_list: D000888:Antibodies, Anti-Idiotypic; D000911:Antibodies, Monoclonal; D000936:Antigen-Antibody Complex; D000939:Epitopes; D007132:Immunoglobulin Isotypes; D007075:Immunoglobulin M; C026408:anti-IgE antibodies; D007073:Immunoglobulin E