›› 1995, Vol. 15 ›› Issue (2): 65-68.

• 论文 •    下一篇

131Ⅰ-McAhJHⅢ对裸鼠荷人肝细胞癌的放射免疫显像研究

  

  1. 1.厦门大学;2.厦门市第一医院
  • 收稿日期:1994-12-14 出版日期:1995-01-25 发布日期:2013-03-19
  • 基金资助:

    福建省计委与卫生厅“八五”攻关课题

Radioimmunoimaging of 131I-Labeled Monoclonal Antibody JHIII in Nude Mice Bearing Human Hepatocellular Carcinoma

  1. 1.Cancer Research Center, Xiamen University,Xiamen 361005;2.Nuclear Medical Department,Xiamen City No. 1 Hospital
  • Received:1994-12-14 Online:1995-01-25 Published:2013-03-19

摘要: 用氯胺T法标记抗人肝癌单克隆抗体(MCAb JHⅢ),对荷人肝细胞癌BEL-7402裸鼠进行体内生物学分布和肿瘤放射免疫显像研究。腹腔注射131Ⅰ-MCAbJHⅢ后24~120h,肿瘤部位的放射性浓聚,以72~96h的影像最为清晰;而注射131Ⅰ-mIgG则呈全身性均匀分布,无肿瘤部位选择性浓聚现象。131Ⅰ-McAbJHⅢ注射后72h,13种器官的肿瘤组织与非瘤组织的放射性比值均大于5,肿瘤的定位指数为7.07。这表明MCAbJHⅢ在肝细胞癌的诊断和导向治疗方面可能有较好的应用价值。

关键词: 肝细胞癌, 单克隆抗体, 裸鼠, 放射免疫显像

Abstract: The monoclonal antibody JH W (McAbJHⅢ ) against human hepatocellular car-cinoma was radiolabeled with 131I by Ch-T method. Its distribution and radioimmunoimaging in the nude mice bearing human hepatoma BEL-7402 were studied. Between 24-120 h after intraperitoneal administration, the image of the concentrating radioactivity in tumor was obtained by the 丫 camera and it was the clearest during 72—96 h; whereas the injection 6f 131I-mIgG into the nude mice resulted in an equal distribution in the whole body without any selectivity. At 72 h after the injection of 131I-McAb JHW, the radioactivity ratioes of tumor/normal tissue (T/NT) for 13 kinds of organ/tissue were all over 5, and the localization index of tumor was 7.07. These results showed that McAbJHⅢ may be used in the localization and targeting treatment of human hepatocellular carcinoma.

Key words: "Hepatocellular carcinoma, Monoclonal antibody, Nude mice, Radioimmunoimaging "