title: Hanganutziu-Deicher heterophile antigen in human retinoblastoma cells.
abstract: We investigated the possible existence of Hanganutziu-Deicher antigen (HD antigen) on retinoblastoma cells by means of indirect membrane immunofluorescence and a complement-dependent antibody-mediated cytotoxicity test. We prepared antiserum in the chicken by immunization with purified equine hematoside highly specific to HD antigen. Three kinds of retinoblastoma cell lines, Y-79, WERI-Rb 1, and TOTL-1, showed positive membrane staining. Y-79 and TOTL-1 cells were also confirmed by the cytotoxicity test to possess HD antigen. Retinoblastoma cells freshly isolated from two patients had a positive membrane immunofluorescence. These results indicated that HD antigen was expressed in human retinoblastoma cells in vitro as well as in vivo.
mesh_terms: D015478:Antigens, Heterophile / Q000032:analysis*; D000951:Antigens, Neoplasm / Q000032:analysis*; D000954:Antigens, Surface / Q000032:analysis*; D002460:Cell Line; D003601:Cytotoxicity Tests, Immunologic; D005134:Eye Neoplasms / Q000276:immunology*; D005455:Fluorescent Antibody Technique; D006801:Humans; D012175:Retinoblastoma / Q000276:immunology*
chemical_list: D015478:Antigens, Heterophile; D000951:Antigens, Neoplasm; D000954:Antigens, Surface