title: Mechanisms by which activated macrophages inhibit lymphocyte responses.
mesh_terms: D000818:Animals; D000936:Antigen-Antibody Complex; D002450:Cell Communication; D002478:Cells, Cultured; D003165:Complement System Proteins; D000242:Cyclic AMP / Q000276:immunology; D006801:Humans; D007109:Immunity; D007165:Immunosuppression Therapy; D066298:In Vitro Techniques; D007372:Interferons / Q000276:immunology; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology*; D008264:Macrophages / Q000276:immunology* / Q000378:metabolism; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000276:immunology; D011073:Polyamines; D011453:Prostaglandins / Q000276:immunology; D013936:Thymidine / Q000276:immunology
chemical_list: D000936:Antigen-Antibody Complex; D011073:Polyamines; D011453:Prostaglandins; D003165:Complement System Proteins; D007372:Interferons; D000242:Cyclic AMP; D000587:Oxidoreductases Acting on CH-NH Group Donors; D013936:Thymidine