吉林大学学报(医学版)

• 基础研究 • 上一篇    下一篇

人线粒体超氧化物歧化酶真核表达载体的构建及其在HUVEC中的表达

仲苓芝,李文雪,李秀英,李新娜,李玉林,李荣贵   

  1. (吉林大学基础医学院 病理生物学教育部重点实验室,吉林 长春130021)
  • 收稿日期:2013-06-04 出版日期:2014-01-28 发布日期:2014-01-28
  • 通讯作者: 李荣贵 E-mail:(Tel:0431- 85619481,E-mail:lirg@jlu.edu.cn)
  • 作者简介:仲苓芝(1984-),女,山东省烟台市人,在读医学博士,主要从事肿瘤分子病理学方面的研究。
  • 基金资助:

    国家自然科学基金面上项目资助课题(21277057)

Construction of eukaryotic expression vector of human mitochondrial superoxide dismutase and its expression in HUVEC

ZHONG Ling-zhi,LI Wen-xue,LI Xiu-ying,LI Xin-na,LI Yu-lin,LI Rong-gui   

  1. (Key Laboratory of Pathobiology,Ministry of Education,School of Basic Medical Sciences,Jilin University,Changchun 130021,China)
  • Received:2013-06-04 Online:2014-01-28 Published:2014-01-28

摘要:

目的:构建人线粒体超氧化物歧化酶2(SOD2)的真核细胞表达载体,探讨其在人脐静脉内皮细胞(HUVEC)中的表达效果。方法:以HUVEC mRNA为原始模板,应用RT-PCR技术,扩增编码线粒体SOD2全长的cDNA片段。利用分子生物学技术,将扩增的cDNA片段与真核细胞表达载体pcDNA3.0的多酶切位点相连接,构成重组质粒并转染到HUVEC,将细胞分为HUVEC母细胞组、转染pcDNA3.0空载组和转染pcDNA3.0-SOD2组。应用RT-PCR方法检测SOD2在HUVEC中的表达情况。结果:将表达SOD2全长cDNA片段定向克隆至质粒pcDNA3.0,测序结果表明成功构建人线粒体SOD2的真核细胞表达载体pcDNA3.0-SOD2。该载体稳定转染HUVEC后,在细胞内获得了稳定表达。与母细胞组和空载组比较,转染pcDNA3.0-SOD2组SOD2 mRNA表达水平明显增加。结论:成功构建SOD2的真核细胞表达载体pcDNA3.0-SOD2,并在人HUVEC中成功表达。本研究为SOD2对细胞保护作用研究提供了实验模型。

关键词: 线粒体超氧化物歧化酶, pcDNA3.0, 人脐静脉内皮细胞

Abstract:

To construct the recombinant eukaryotic expression vector of mitochondrial superoxide dismutase 2 (SOD2) and to explore its expression efficacy in human umbilical vein endothelial cells (HUVEC).Methods SOD2 gene full-length cDNA was amplified from HUVEC by RT-PCR and the target gene SOD2 was connected with the plasmid pcDNA3.0 vector.The recombinant plasmid was constructed and transfected into HUVEC.The cells were grouped into HUVEC,pcDNA3.0 and pcDNA3.0-SOD2 transfected groups.The expression of SOD2 in HUVEC was detected by RT- PCR.

Key words:  , mitochondrial superoxide dismutase, pcDNA3.0, human umbilical vein endothelial cell

中图分类号: 

  • Q78