title: Blocking antibodies and enhancement.
mesh_terms: D000818:Animals; D000906:Antibodies; D000951:Antigens, Neoplasm; D001327:Autoimmune Diseases; D002999:Clone Cells; D003168:Complement Fixation Tests; D003601:Cytotoxicity Tests, Immunologic; D004285:Dogs; D005260:Female; D006084:Graft Rejection; D006649:Histocompatibility Antigens; D006801:Humans; D007111:Immunity, Cellular; D007136:Immunoglobulins; D007165:Immunosuppression Therapy; D007959:Lymphocyte Culture Test, Mixed; D008214:Lymphocytes / Q000276:immunology; D008324:Mammary Tumor Virus, Mouse / Q000276:immunology; D051379:Mice; D008979:Moloney murine leukemia virus / Q000276:immunology; D009369:Neoplasms / Q000276:immunology*; D009374:Neoplasms, Experimental; D011120:Polyomavirus / Q000276:immunology; D011247:Pregnancy; D051381:Rats; D014181:Transplantation Immunology
chemical_list: D000906:Antibodies; D000951:Antigens, Neoplasm; D006649:Histocompatibility Antigens; D007136:Immunoglobulins