title: Functional activation of immune lymphocytes by antigenic stimulation in cell-mediated immunity. IV. Role of macrophage and its soluble factor in antigen-induced MIF production of immune T lymphocytes.
abstract: Histocompatibility-linked restriction of macrophage-T lymphocyte interaction in antigen-induced MIF production by sensitized lymphocytes was examined, by using combinations of inbred strain 2, strain 13, and JY-1 guinea pigs. The effective interaction of the antigen-bearing macrophages with the immune T lymphocytes was observed when the donor of the antigen-bearing macrophages and that of the immune lymphocytes shared Ia antigens of the major histocompatibility complex. Identities of B antigens and S antigens were not important for this cooperation. It was further demonstrated that the previously reported soluble factor derived from LPS-stimulated peritoneal adherent cells (macrophages) could help antigenic activation of the immune lymphocytes across the strain barrier provided a small number of macrophages (0.01%) from syngeneic strain were present. These results show that the presence of macrophages is absolutely required to present antigen to immune T lymphocytes in a genetically restricted manner and the soluble factor from macrophages appears to give a nonspecific effect on the lymphocyte activation in addition to or in collaboration with antigenic stimulation.
mesh_terms: D000818:Animals; D006168:Guinea Pigs; D006648:Histocompatibility; D007111:Immunity, Cellular; D008070:Lipopolysaccharides / Q000494:pharmacology; D008213:Lymphocyte Activation; D008263:Macrophage Migration-Inhibitory Factors / Q000096:biosynthesis*; D008264:Macrophages / Q000276:immunology* / Q000378:metabolism; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D008070:Lipopolysaccharides; D008263:Macrophage Migration-Inhibitory Factors