The specific expression mediated by promoters of hepatitis B virus in hepatocarcinoma cells  

作　　者：Na Xie Xiaoyan Wang Qiong Zhang Yuanyuan Lin Kuohuan Liang Jusheng Lin 

机构地区：[1]Institute of Liver Diseases, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China

出　　处：《The Chinese-German Journal of Clinical Oncology》2006年第5期328-331,共4页中德临床肿瘤学杂志（英文版）

基　　金：Supported by a grant form the National Nature Science Foundation of China (30330680).

摘　　要：Objective: To investigate four expression vectors carrying enhanced green fluorescent protein (EGFP) genes, which under the control of different HBV promoters, were detected and compared as to their expressions in hepatocytes and non- hepatic cell lines. Methods: Four HBV promoters (including enhancers) were amplified by PCR, subcloned into the expression vector pEGFP-1. The four recombinants controlled by HBV promoters were analyzed and identified by restriction enzymes and sequencing. After transfection into human hepatoma cell lines and non-liver cells, transfection efficiency was measured by EGFP expression through fluorescence microscopy and analyzed with fluorescence activated cell sorter (FACS). Results: All target fragments were separately obtained and successfully cloned into the expression vector. The transfection results showed that in hepatoma cells, the expression of EGFP was more obvious than it was in non-hepatic cells. Among the four promoters, S gene promoter presented the strongest transfection efficiency. Conclusion: Our findings indicate that HBV promoters could lead specific expression in hepatocytes, different promoters had different outcomes, which might be a potential for the gene therapy of liver diseases.

关 键 词：HBV promoter EGFP hepatocellular carcinoma （HCC） gene therapy 

分 类 号：R512.62[医药卫生—内科学] R734.2[医药卫生—临床医学]