吉林大学学报(医学版) ›› 2013, Vol. 39 ›› Issue (3): 498-502.doi: 2.R.20130423.1840.004.html

• 基础研究 • 上一篇    下一篇

CD133基因启动子调控增强型绿色荧光蛋白基因在喉癌Hep-2细胞中的表达

王晓峰1,周翔宇*,张桂珍2,王 伟1,杜珍武2,张天夫1   

  1. 1. 吉林大学中日联谊医院口腔科,吉林 长春 130033;2. 吉林大学中日联谊医院中心研究室,吉林 长春 130033
  • 收稿日期:2012-11-12 出版日期:2013-05-28 发布日期:2013-07-01
  • 通讯作者: 张天夫(Tel:0431-84995573,E-mail:zhangtianfu1963@sina.com) E-mail:zhangtianfu1963@sina.com
  • 作者简介:王晓峰(1979-),女,山东省莱州市人,主治医师,医学博士,主要从事肿瘤干细胞方面的研究。
  • 基金资助:

    吉林省科技厅科研基金资助课题 (201201060,201215078);吉林省卫生厅
    科研基金资助课题(2011Z048)

Expression of enhanced green fluorescent protein  gene regulatedby CD133 gene promoter in laryngocarcinoma Hep-2 cells

WANG Xiao-feng1,ZHOU Xiang-yu*,ZHANG Gui-zhen2,WANG Wei1,DU Zhen-wu2,ZHANG Tian-fu1   

  1. 1. Department of Stomatology,China-Japan Union Hospital,Jilin University,Chan
    gchun 130033,China;2. Department of Central Research,China-Japan Union Hospital,Jilin University,Changchun 130033,China
  • Received:2012-11-12 Online:2013-05-28 Published:2013-07-01

摘要: 目的:构建人CD133基因启动子启动加强型绿色荧光蛋白(eGFP)基因表达载体,观察在喉癌Hep-2细胞系中人CD133基因启动子启动eGFP基因表达能力,为应用CD133基因启动子调控靶向肿瘤干细胞(CSCs)基因治疗奠定实验基础。方法:采用PCR方法从人外周血基因组中克隆人CD133基因启动子,通过基因重组技术将人CD133基因启动子克隆入慢病毒基因转移载体pWPXLd-eGFP中,构建人CD133基因启动子启动eGFP基因表达载体, PCR以及酶切鉴定构建载体的正确性。应用脂质体介导该载体转染入Hep-2细胞中,细胞分为空白对照组(未转染质粒)、阳性对照组(转染pWPXLd)和实验组(转染pWPXLd-eGFP -CD133)。应用荧光显微镜观察各组eGFP基因在喉癌Hep-2细胞内的表达。结果:PCR法获得了约1 810 bp大小的CD133基因启动子片段;酶切与PCR鉴定,成功构建了人CD133基因启动子启动eGFP基因表达载体。荧光显微镜下,阳性对照组和实验组转染的Hep-2细胞株有eGFP的表达,而空白组对照组的Hep-2细胞内无eGFP的表达。结论:构建的人CD133基因启动子启动eGFP基因表达载体可以调控eGFP基因在喉癌Hep-2细胞内的表达。

关键词: CD133启动子, 加强型绿色荧光蛋白, 肿瘤干细胞, Hep-2细胞系,  

Abstract: Objective To construct the  gene expression vector  of  enhanced green fluorescent protein (eGFP)regulated by human CD133 gene promoter and to observe the expression ability of the human CD133 gene promoter in laryngocarcinoma Hep-2 cell line,and to provide experimental basis for the target therapy of tumor stem cells(CSCs) regulated by  human CD133 gene promoter.  Methods The CD133 gene promoter was cloned from the genomic DNAs of human peripheral blood by PCR method and  cloned into lentivirus pWPXLd-eGFP by using gene recombination technology to construct eGFP gene expression vector induced by human CD133 gene promoter. The recombined vector was identified by PCR and enzyme digestion. The recombined vector was transfected into Hep-2 cells induced by liposome. The cells were divided into  blank control group (non-transfected with plasmid),positive control  group (transfected with pWPXLd),and experiment  group(transfected with pWPXLd-eGFP-of CD133);and the expression of eGFP gene in Hep-2 cells was observed under fluorescence microscope. Results  The specific 1 810 bp CD133 gene promoter  fragment was obtained successfully by PCR method. The eGFP  gene expression vector regulated by  human CD133 promoter was constructed successfully by PCR and enzyme digestion method.The  eGFP expressions in Hep-2 cells in  positive control group and experiment group were found,but weren’t in blank control group under fluorescence microscope. Conclusion The eGFP  gene expression vector regulated by  human CD133 gene promoter can regulate the expression of eGFP gene in laryngocarcinoma Hep-2 cells.

Key words: CD133 promoter, enhanced green fluorescent protein, tumor stem cell, Hep-2 cell line

中图分类号: 

  • Q28