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PTEN在肝细胞癌中的表达及其与AKT磷酸化的相关性研究[J]. 肿瘤防治研究, 2004, 31(12): 748-750. DOI: 10.3971/j.issn.1000-8578.1588
引用本文: PTEN在肝细胞癌中的表达及其与AKT磷酸化的相关性研究[J]. 肿瘤防治研究, 2004, 31(12): 748-750. DOI: 10.3971/j.issn.1000-8578.1588
Expression of PTEN in Hepatocellular Carcinoma and Its Correlation with Phosphorylation of PKB/AKT[J]. Cancer Research on Prevention and Treatment, 2004, 31(12): 748-750. DOI: 10.3971/j.issn.1000-8578.1588
Citation: Expression of PTEN in Hepatocellular Carcinoma and Its Correlation with Phosphorylation of PKB/AKT[J]. Cancer Research on Prevention and Treatment, 2004, 31(12): 748-750. DOI: 10.3971/j.issn.1000-8578.1588

PTEN在肝细胞癌中的表达及其与AKT磷酸化的相关性研究

Expression of PTEN in Hepatocellular Carcinoma and Its Correlation with Phosphorylation of PKB/AKT

  • 摘要: 目的 研究抑癌基因PTEN在肝细胞癌 (HCC)中的表达及其与蛋白激酶B(PKB/AKT)磷酸化的相关性。方法 采用免疫组织化学S P染色法, Western印迹杂交法检测 35例肝细胞癌, 15例肝硬变, 8例正常肝组织中PTEN的表达, 并分析肝癌组织中PTEN表达与AKT磷酸化水平的关系。结果 肝癌组织中PTEN蛋白的阳性表达 (6 2 .9%, 0 .0 85± 0 .0 2 1)明显低于肝硬变和正常肝组织 (P <0 .0 1) ;同时低分化、有肿瘤转移的肝癌其PTEN表达强度明显低于高分化、无转移的肝癌 (P <0 .0 5 ) ;相关性分析表明 :肝癌组织中PTEN蛋白表达和AKT磷酸化水平呈明显负相关 (r =- 0 .818,P <0 .0 1)。结论 由于PTEN蛋白表达下调或缺失, 而导致AKT磷酸化水平的明显增高, 在肝癌的发生、发展中起着重要的作用。

     

    Abstract: Objective To investigate clinical significance of phosphatase and tensin homolog deleted on chromosome ten (PTEN) protein exppression and correlation between the expression of PTEN and phosphorylation of protein kinase B (PKB/AKT) in human hepatocellular carcinoma (HCC). Methods The expression of PTEN and phospho-AKT were detected by SP immunohistochemical technique and Western blotting in 35 cases of HCC, 15 cases of liver cirrhosis and 8 cases of normal tissues. Results The positive expression of PTE...

     

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