title: Use of monoclonal antibodies in detection of melanoma-associated antigens in intact human tumors.
abstract: The use of antimelanoma monoclonal antibodies on tissue sections using a two-step indirect immunoperoxidase technique is reported. Antibodies 691-13-17 and 691-I5-Nu4B reacted with dysplastic nevus cells and all melanomas tested, but not with normal skin melanocytes, intradermal nevi, or lentigines. Antibody 691-13-17, directed against DR antigen, reacted also with Langerhan's cells, macrophages, and a subpopulation of lymphocytes. Antibody 691-I5-Nu4B reacted only with melanomas. The technique allows analysis of the expression of antigens by tumor cells in situ.
mesh_terms: D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal / Q000276:immunology*; D000918:Antibody Specificity; D000951:Antigens, Neoplasm / Q000032:analysis*; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D008207:Lymphatic Metastasis; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000276:immunology*; D008875:Middle Aged; D012878:Skin Neoplasms / Q000175:diagnosis / Q000276:immunology*; D013194:Staining and Labeling
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm