title: A mediator acting as a costimulator for the development of cytotoxic responses in vitro.
mesh_terms: D000818:Animals; D002417:Cattle; D003208:Concanavalin A / Q000494:pharmacology; D003602:Cytotoxicity, Immunologic; D005720:Gamma Rays; D006168:Guinea Pigs; D007519:Isoantigens / Q000276:immunology; D051379:Mice; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D008819:Mice, Nude; D009374:Neoplasms, Experimental; D051381:Rats; D013045:Species Specificity; D013154:Spleen / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D013997:Time Factors; D014466:Ultraviolet Rays
chemical_list: D007519:Isoantigens; D003208:Concanavalin A