Endocytosis of anti-CCK-B/gastrin receptor antibody and effect on hepatoma cell lines

被引:6
作者
Stubbs, M
Khan, K
Watson, SA
Savage, K
Dhillon, AP
Caplin, ME
机构
[1] UCL Royal Free & Univ Coll Med Sch, Dept Histopathol, London, England
[2] UCL Royal Free & Univ Coll Med Sch, Dept Med, London, England
[3] Univ Nottingham, Queens Med Ctr, Canc Studies Unit, Nottingham NG7 2RD, England
关键词
gastrin; CCK-B receptor; endocytosis; apoptosis; hepatocyte; tumor;
D O I
10.1177/002215540205000908
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Immunotherapy has considerable potential in the treatment of cancer. Here we report on the uptake of an antibody raised against the CCK-B/Gastrin receptor (CCK-BR) by liver embryonic and liver tumor cell lines. In all five cell lines studied, expression of CCK-BR and uptake of labeled anti-CCK-BR antibody was observed. The labeled anti-CCK-BR antibody was localized in both the cytoplasm and nucleus of cells. In addition, we found a coincidence between the uptake of the labeled antibody by cells and the occurrence of apoptosis (cell death). The results suggest that antibodies directed against CCK-BR have potential for targeting and possibly destroying tumor cells bearing the receptor.
引用
收藏
页码:1213 / 1217
页数:5
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