摘要
目的研究凋亡相关基因bcl-x及bax在肝细胞癌(hepatocellular carcinoma,HCC)中的表达与HCC临床病理学特征的关系及其意义。方法采用免疫组织化学方法，检测石蜡包埋的HCC标本中凋亡相关基因bcl-x及bax的表达。结果在40例HCC中，bcl-x和bax阳性者分别为20 例和19例；14例肝硬变bcl-x和bax 阳性者分别为12例和11例。bcl-x和bax 在HCC细胞中的表达均低于肝硬变(均P∨0.05)；bcl-x和bax在高中分化型HCC细胞中的表达均高于低分化型。AFP≤400μg/L的患者二者的表达均高于AFP∧400μg/L的患者。在临床分期为Ⅰ～Ⅱ期的HCC细胞中的表达均高于Ⅲ期, 彼此间均有显著性差异；而在男性与女性患者间, 在年龄∧60岁与∨60岁患者间，均无显著性差异(均为P∧0.05)。凋亡相关基因bcl-x及bax在HCC细胞的表达呈正相关(r=0.5602, P∨0.001)。结论凋亡相关基因bcl-x和bax在HCC细胞中的表达，对肝癌细胞的凋亡具有调节作用, 并与HCC的分化程度、临床分期和AFP的水平有关。
Aim To study relationship between expressions of apoptosis-related gene bax and bcl-x in heopatocellular carcinoma (HCC) tissues and its clinical feature. Mothods The expression of Bax and Bcl-x were determined by immunohistochemistry with EnvisionTM system. Results Bcl-x and Bax proteins were detectable in 20 and 19 out of 40 HCCs, respectively. Their expressions in HCC cells were lower than those in cirrhosis(P∨0.05), The expression of Bax and Bcl-x in highly or intermediatly differentiated HCC cells were highed than that in low-diffe-rehtiated HCC cells suggesting that there was significant relationship among bcl-x and bax expressions and differential degree，clinical stages of HCC cells，and AFP level. However, the expression of this proteins showed no relationship with patient's sex and age(∧60 or ∨60 years old) (∧0.05). Conclusion Apoptosis-related genes bcl-x and bax participate partially in apoptotic regulation of HCC cells, and show that their expressions have correlation with differential degree, clinical stage of HCC cells and AFP levels.
出处
《细胞与分子免疫学杂志》
CAS
CSCD
北大核心
2001年第4期356-358,共3页
Chinese Journal of Cellular and Molecular Immunology
