title: Induction of idiotype-bearing, nuclease-specific helper T cells by in vivo treatment with anti-idiotype.
abstract: Treatment of BALB/c mice with purified pig anti-(BALB/c anti-nuclease) anti-idiotypic antibodies has been found to induce the appearance of idiotype-bearing immunoglobulins (Id') in the serum of these mice in the absence of detectable antigen binding activity. This phenomenon appeared to require T cells in the hosts because no Id' was detected in the serum of nude mice similarly treated. Furthermore, the spleens of BALB/c mice treated with anti-idiotype were found to contain helper T cells capable of providing help in an in vitro plaque-forming cell response to trinitrophenyl-nuclease equivalent to that provided by helper T cells from the spleens of nuclease-primed animals. Helper T cells from both anti-idiotype-treated and nuclease-treated animals were found to be antigen-specific and to be similarly susceptible to elimination by treatment with anti-idiotype plus complement. Therefore, treatment with both antigen and anti-idiotype appeared to prime similar populations of antigen-specific helper T cells, while having different effects on the induction of antibody. These findings are consistent with the network theory of receptor interactions in the immune response, and may provide a means for studying individual cell populations involved in such interactions.
mesh_terms: D000818:Animals; D000888:Antibodies, Anti-Idiotypic / Q000276:immunology*; D000917:Antibody Formation; D000921:Antibody-Producing Cells / Q000276:immunology; D001665:Binding Sites; D000939:Epitopes; D006462:Hemolytic Plaque Technique; D007130:Immunoglobulin Idiotypes / Q000096:biosynthesis* / Q000276:immunology; D051379:Mice; D008805:Mice, Inbred A; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D008836:Micrococcal Nuclease / Q000276:immunology*; D013552:Swine; D013601:T-Lymphocytes / Q000201:enzymology*; D014301:Trinitrobenzenes / Q000276:immunology
chemical_list: D000888:Antibodies, Anti-Idiotypic; D000939:Epitopes; D007130:Immunoglobulin Idiotypes; D014301:Trinitrobenzenes; D008836:Micrococcal Nuclease