Nonspecific "lymphocyte activating" factors produced by macrophages.
D000818:Animals; D006168:Guinea Pigs; D006801:Humans; D007376:Interleukin-2 / Q000096:biosynthesis*; D008222:Lymphokines / Q000096:biosynthesis*; D008264:Macrophages / Q000276:immunology*; D051379:Mice; D051381:Rats; D013601:T-Lymphocytes / Q000276:immunology
D007376:Interleukin-2; D008222:Lymphokines