抗凋亡基因bag 1的表达及其与肝内胆管细胞癌分化的关系

目的　探讨抗凋亡基因bag 1在原发性肝内胆管细胞癌 (ICC )中的表达及其与肿瘤分化的关系。方法　采用免疫组织化学的方法 ,检测bag 1基因在ICC组织 (n =48)及肝细胞肝癌癌旁胆管上皮 (对照组 ,n =2 5 )中的表达情况。结果　ICC组的bag 1基因表达强于对照组 (P <0 .0 1)。在ICC组内 ,2 7例中低分化胆管细胞癌中bag 1基因的表达强于 2 1例高分化胆管细胞癌 (P <0 .0 1)。结论　bag 1的表达在分化越低的胆管细胞癌中越强 ,提示bag 1基因可能与其肿瘤的分化相关。

The expression of anti apoptosis gene bag 1and its relation to the differentiation of intrahepatic cholangiocarcinoma

Objective To investigate the expression of anti-apoptosis gene bag-1 and its relation to the differentiation of intrahepatic cholangiocarcinoma (ICC). Methods Immunohistochemical techniques were adopted to study the expression of bag-1 in ICC tissue ( n=48) and para-hepatocarcinoma bile duct ( control group, n=25). Results Expression of bag-1 in the ICC group was significantly higher than that in the control group. In the ICC group (P<0.01), the expression of bag-1 in 21 cases of well differentiated ICC was significantly lower than that in 27 cases of middle and poor differentiated ICC (P< 0.01). Conclusions The expression of bag-1 gene increases in the middle or poor differentiated ICC tissue suggests that bag-1 gene might relate to the differentiation of ICC.