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在动物实验的基础上,比较了抗AFP单克隆抗体(mAb)和抗AFP多克隆抗体(pAb)两种不同抗体双弹头标记物在肝癌患者体内的生物代谢情况。结果显示,两种抗体标记物的血浆清除半衰期均在24h左右,mAb标记物的清除较pAb标记物略慢。尿清除的半衰期,mAb标记物约为120h,而pAb标记物则约为18h,表明二者的体内生物代谢不同,疗效可能不一。
Abstract:Based on the experimental animals, the in vivo metabolisms of two immunoconjugates, 131 I anti AFP pAb MMC and 131 I anti AFP mAb MMC, which have dual warheads for radioimmunotherapy in patients with primary liver cancer were compared. The results showed that the clearance half lives in plasma were all about 24 hours, with a little longer for 131 I anti AFP mAb MMC. And the half life of excretion of 131 I anti AFP mAb MMC in urine was about 120 h, much longer than that 18 h of 131 I anti AFP pAb MMC. These results suggest that the metabolic mechanisms of the two kinds of labeled agents were different.
1李志革,吴英德,周德南等.131I抗AFPMcAbMMC“双弹头”免疫导向治疗原发性肝癌的临床观察.中华肿瘤杂志,1996;18(5):368-3712李志革,刘康达,周德南等.131I抗AFPMcAbMMC“双弹头”导向药物对荷瘤裸鼠的放射免疫显像和治疗.细胞与分子免疫学杂志,1996;12(3):43-453许沈华,牟翰舟,钱丽娟等.131I标记抗人结肠癌单克隆抗体MMC对裸鼠人肠癌模型的治疗.中华核医学杂志,1995;15(1):56-574汤文英,汤钊猷,周东等.131I抗人肝癌铁蛋白抗体在肝癌病人体内的药代动力学观察.上海医科大学学报,1992;19(2):86-895TangZY,LiuKD,GuoYDetal.Tumorimaging,antargetingtherapyforhepatoceluarcarcinoma.ChinMedJ,1986;99(11):855-8606谢天豪,贾士期,韩建奎等.抗CEA单抗在结肠癌病人体内血动力学的研究.中华核医学杂志,1989;9(1):33-35
基本信息:
中图分类号:R967,
引用信息:
[1]宋向群,李志革,吴英德,周德南,甘友全,胡晓桦.两种不同抗体双弹头标记物导向治疗肝癌的比较[J].细胞与分子免疫学杂志,1998(01).
基金信息:
国家八五科技攻关资助
1998-03-30
1998-03-30