title: A T-cell -produced mediator substance active in the humoral immune response.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens; D001345:Autoradiography; D001402:B-Lymphocytes / Q000276:immunology; D002474:Cell-Free System; D002478:Cells, Cultured; D003208:Concanavalin A; D004912:Erythrocytes / Q000276:immunology; D006462:Hemolytic Plaque Technique; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D008222:Lymphokines; D012756:Sheep / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D000941:Antigens; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D008222:Lymphokines; D014316:Tritium; D003208:Concanavalin A; D013936:Thymidine