A rat monoclonal antibody was linked to norcantharidin (NCTD), an antitumor drug currently in clinical use McAb 3A5. The 3A5 NCTD conjugate retained complete immunoreactivity of McAb 3A5 to human hepatoma cancer BEL 7402 cells.

• 用单抗3A5制备与去甲斑蝥素（NCTD）的偶联物。 ELISA检测结果表明：3A5?NCTD偶联物保持对人肝癌BEL?7402细胞的免疫反应性。