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-  2015 

Connexin43在肝细胞癌组织中的表达

DOI: 10.3971/j.issn.1000-8578.2015.12.009

Keywords: A Meta-analysis,Trichostatin A Increases Sensitivity of Hepatocellular Carcinoma Cells Bel7402 to TRAIL,Percutaneous Ultrasound-guided Radiofrequency Ablation with Artificial Ascites for Hepatocellular Carcinoma in Hepatic Dome,Cost Effectiveness of Transcatheter Arterial Chemoembolization for Preventing Hepatocellular Carcinoma Recurrence After Radical Resection,Effect of Silencing TLR4 Gene by RNA Interference Carried by Lentiviral Vector on Subcutaneous Tumor of Human Hepatitis B Virus-associated Hepatocellular Carcinoma in Nude Mice,p38MAPK Signaling Pathway in Rosiglitazone-induced Apoptosis of Hepatocellular Carcinoma Cell Line HepG2

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Abstract:

摘要 目的 探讨缝隙连接蛋白(connexin, Cx)43在肝细胞癌(hepatocellular carcinoma, HCC)中的表达和功能。方法 采用免疫组织化学法检测Cx43在20例正常肝脏组织及76例HCC组织中的表达及分布。采用RT-PCR和Western blot法检测正常肝细胞LO2和肝癌细胞SMMC-7721中Cx43的表达,免疫荧光法观察Cx43的分布,细胞接种荧光示踪法测定细胞缝隙连接(gap junction, GJ)功能。结果 Cx43在HCC组织中的阳性表达率较正常肝脏组织明显下调,且从细胞膜向细胞质定位的“内化”现象明显。体外实验进一步证实与LO2细胞相比,Cx43在SMMC-7721细胞上存在表达及分布的异常,并且功能性GJ明显下调。结论 Cx43蛋白数量改变及分布异常与HCC发生密切相关,Cx43有望成为治疗HCC新靶点

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