title: Antigen-specific human T cell factors. II. T cell suppressor factor: biologic properties.
abstract: The in vitro induction of an ovalbumin-specific human T cell suppressor factor is described (TsF120-OA). The antigen-specific suppressive component can be purified by affinity chromatography from supernatants derived from Marbrook-Diener type cultures of peripheral blood T cells stimulated with a high dose of ovalbumin. TsF120-OA suppresses the antigen-induced PFC formation of human blood B cells in vitro in an antigen-specific way. The target of TsF120-OA activity is shown to be the T helper cell. No genetic restriction in the action of the factor is observed.
mesh_terms: D001402:B-Lymphocytes / Q000276:immunology; D000939:Epitopes; D006462:Hemolytic Plaque Technique; D006801:Humans; D007700:Kinetics; D010047:Ovalbumin / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D050378:T-Lymphocytes, Regulatory / Q000276:immunology* / Q000378:metabolism
chemical_list: D000939:Epitopes; D010047:Ovalbumin