title: Ly and Ia antigen phenotypes of T cells involved in delayed-type hypersensitivity and in suppression.
abstract: The Ly and Ia phenotypes of T lymphocytes involved in different functions were characterized by the use of specific antisera. T cells responsible for delayed-type hypersensitivity (DTH) and for helper functions were found to be Ly-1+,2- in contrast to cytotoxic T cells and T cells responsible for suppression of antibody responses which were Ly-1-,2+. Unlike some primed helper cells, T cells involved in DTH were Ia-. Suppressor cells in the system were Ia+.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000937:Antigen-Antibody Reactions; D000941:Antigens; D003601:Cytotoxicity Tests, Immunologic; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D007165:Immunosuppression Therapy; D008198:Lymph Nodes / Q000276:immunology; D051379:Mice; D008815:Mice, Inbred Strains; D010641:Phenotype; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D000941:Antigens