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发表于 2006-11-16 04:52
给大家提供一个相关研究文章
腺病毒介导MDA-7/IL-24选择性促进肝癌细胞的凋亡和增殖阻滞 薛新波 郑建伟 王从俊 陈堃 胡回忆 胡慧 于愿 吴在德 摘 要:目的 观察MDA-7/IL-24基因对不同p53状态人肝癌细胞HepG2、MHCC97L以及Hep3B和正常的肝细胞L02的选择性杀伤作用,为肝癌的基因治疗提供理论基础.方法 将携带人MDA-7/IL-24基因的腺病毒Ad.mda-7感染人正常肝细胞L02和不同p53状态的肝癌细胞HepG2、MHCC97L、Hep3B.通过逆转录聚合酶链反应方法观察MDA-7/IL-24基因的表达,酶联免疫吸附法检测细胞培养上清液中MDA-7/IL-24蛋白的浓度,通过四甲基偶氮唑盐染色法及Hoechst染色观察MDA-7/IL-24对肝癌细胞的生长抑制和杀伤作用,Annexin-V和碘化丙啶双染后流式细胞仪检测细胞的凋亡,应用流式细胞仪检测细胞周期.结果 复制缺陷型腺病毒能介导外源基因MDA-7/IL-24在肝癌细胞株HepG2,MHCC97L和Hep3B以及正常细胞L02中高效表达.细胞培养上清液中有MDA-7/IL-24蛋白表达.MDA-7/IL-24能明显抑制各种肝癌细胞的生长,Hoechst染色提示MDA-7/IL-24促进肝癌细胞的凋亡,流式细胞仪提示MDA-7能选择性杀伤肝癌细胞而对正常的肝细胞无影响,细胞周期分析提示MDA-7/IL-24阻滞肝癌细胞在G2/M期,同时对正常的肝细胞没有促凋亡作用和增殖阻滞作用.结论 复制缺陷型重组腺病毒载体Ad.mda-7能介导MDA-7/IL-24基因在人肝癌细胞中高效表达,选择性地杀伤肝癌细胞HepG2、MHCC97L和Hep3B,促进细胞增殖阻滞及诱导肿瘤细胞凋亡而与肿瘤细胞的P53基因的状态无关,同时对正常的肝细胞L02无任何毒性作用. 关键词:癌,肝细胞;腺病毒,人;基因疗法
Adenovirus vector expressing MDA-7/IL-24 selectively induces growth arrests and apoptosis in human hepatocellular carcinoma cell lines independent of the state of p53 gene XUE Xin-bo ZHENG Jian-wei WANG Cong-jun CHEN Kun HU Hui-yi HU Hui YU Yuan WU Zai-de Adenovirus vector expressing MDA-7/IL-24 selectively induces growth arrests and apoptosis in human hepatocellular carcinoma cell lines independent of the state of p53 gene XUE Xin-bo ZHENG Jian-wei WANG Cong-jun CHEN Kun HU Hui-yi HU Hui YU Yuan WU Zai-de |
基金项目:湖北省科技攻关项目(2006AA304B05) 作者简介:薛新波 男,54岁,教授. 作者简介:通讯作者:王从俊,Email:[email protected] 作者单位:薛新波(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 郑建伟(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 王从俊(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 陈堃(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 胡回忆(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 胡慧(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 于愿(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心) 吴在德(430030,武汉,华中科技大学同济医学院附属同济医院胆胰外科中心)
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收稿日期:2006年1月10日 出版日期:2006年9月20日 |
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