单克隆抗体B_(72·3)曾显示出对一种称为TAG(肿瘤相关糖蛋白)-72的高分子量糖蛋白复合物起反应。应用生物素—抗生物素免疫过氧化物酶法,对细针吸取及相应外科切除的恶性或良性肿瘤组织进行了TAG-72表达的分析。用McAb B72.3呈阳性染色(肿瘤细胞从1％—10％),肺腺癌和肺腺鳞癌为18/18,乳腺癌为17/21,结肠癌以及身体其余部位的腺 Monoclonal antibody B_(72·3) has been shown to react to a high molecular weight glycoprotein complex called TAG (tumor-related glycoprotein)-72. Using biotin-avidin immunoperoxidase method, TAG-72 expression analysis was performed on fine needle aspiration and corresponding surgically resected malignant or benign tumor tissue. Positive staining with McAb B72.3 (tumor cells from 1%-10%), lung adenocarcinoma and lung adenosquamous carcinoma 18/18, breast cancer 17/21, colon cancer and the rest of the body’s glands