申请人:CYTOGEN CORPORATION
公开号:EP0251455A2
公开(公告)日:1988-01-07
Novel therapeutic antibody conjugates comprising amine derivatives of folic acid analogs covalently attached via a reactive amine group to an oxidized carbohydrate moiety of an antibody or antibody fragment are disclosed. The conjugates retain substantially the same immunorespecificity and immunoreactivity of the unconjugated antibody molecule. The immunospecificity and immunoreactivity of the antibody conjugates permits targeted delivery of the attached therapeutically effective amine derivative of folic acid analogs in vivo. The conjugates are therapeutically effective against a variety of neoplastic and non-neoplastic cellular disorders when administered in vivo. Methods for synthesizing the amine derivatives of folic acid analogs, methods for preparing the antibody conjugates, and methods for use of the conjugates in vivo are also disclosed.
本研究公开了新型治疗性抗体共轭物,该共轭物由叶酸类似物的胺衍生物组成,通过活性胺基团共价连接到抗体或抗体片段的氧化碳水化合物分子上。共轭物基本上保持了未共轭抗体分子的免疫特异性和免疫活性。抗体共轭物的免疫特异性和免疫活性允许在体内靶向递送叶酸类似物的治疗有效胺衍生物。在体内给药时,这些共轭物对多种肿瘤性和非肿瘤性细胞疾病具有治疗效果。此外,还公开了合成叶酸类似物胺衍生物的方法、制备抗体共轭物的方法以及在体内使用共轭物的方法。