title: Heterogeneous distribution of acidic TA-4 in cervical squamous cell carcinoma: immunohistochemical demonstration with monoclonal antibodies.
abstract: Tumor antigen TA-4 is divided into two subgroups; acidic and neutral TA-4. The tissue localizations of these TA-4 subgroups were examined by using monoclonal antibodies, i.e., Mab-21 which reacts with both acidic and neutral TA-4, and Mab-317 which is specific to acidic TA-4. Immunohistochemical staining with Mab-21 showed positive cells in most parts of the cancer nest and in the intermediate layer of the non-cancerous squamous epithelium of the uterine cervix, whereas positive staining with Mab-317 was observed only in the cells at the peripheral parts of the cancer nest adjacent to the surrounding stromal tissue. Thus, examination of the subgroups of TA-4 may be a useful aid for investigating the biologic behavior of squamous cells.
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology*; D000951:Antigens, Neoplasm / Q000032:analysis*; D002272:Carcinoembryonic Antigen / Q000032:analysis; D002294:Carcinoma, Squamous Cell / Q000276:immunology*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D002583:Uterine Cervical Neoplasms / Q000032:analysis* / Q000276:immunology*
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm; D002272:Carcinoembryonic Antigen