J4

• 基础研究 • 上一篇    下一篇

pLEGFP-mIFNγ重组质粒的构建及神经干细胞转染

刘 颖1,陈 东2*,李菁华3   

  1. 1. 吉林大学基础医学院组织学与胚胎学教研室,吉林 长春130021;2. 广东医学院组织学与胚胎学教研室,广东 广州523803;3. 吉林大学基础医学院病原生物学教研室,吉林 长春130021
  • 收稿日期:2005-04-14 修回日期:1900-01-01 出版日期:2006-07-28 发布日期:2006-07-28
  • 通讯作者: 陈 东

Construction and transfection of neural stemcells of recombinant plasmid pLEGFP-mIFNγ

LIU Ying1,CHEN Dong2*,LI Jing-hua3   

  1. 1. Department of Histology and Embryology,School of Basic Medical Sciences, Jilin University, Changchun 130021,China;2. Department of Histology and Embryology, Guangdong Medical College,Guangzhou523803,China;3. Department of Pathogenobiology,School of Basic Medical Sciences,Jilin University, Changchun 130021,China
  • Received:2005-04-14 Revised:1900-01-01 Online:2006-07-28 Published:2006-07-28
  • Contact: CHEN Dong

摘要: 目的:构建pLEGFP-mIFNγ真核表达质粒,以获得带有绿色荧光蛋白的γ干扰素融合蛋白。 方法:以克隆质粒pcDNA3.1-mIFNγ为模板,用PCR方法扩增mIFNγ DNA 片段,利用pEGFP-C1质粒载体构建pLEGFP-mIFNγ重组质粒,用酶切电泳验证重组质粒的正确性。脂质体转染包装细胞PA317,利用PA317病毒上清转染神经干细胞。 结果:PCR结果显示扩增片断大小约500 bp,与预期相同。重组质粒酶切后显示其大小约7 400 bp。pLEGFP-mIFNγ成功转染神经干细胞。 结论:pLEGFP-mIFNγ质粒构建成功,能够有效转染神经干细胞,并进行示踪。

关键词: 质粒, 干细胞, 转染

Abstract: Objective To construct a recombinant plasmid pLEGFP-mIFNγ for developing the genetical therapy of tumor by stem cells. Methods PCR was used to amplify the mIFNγ gene from plasmid pcDNA3.1-mIFNγ in which the mIFNγ was cloned. A new plasmid, pLEGFP-mIFNγ, was then constructed by inserting the amplified mIFNγ gene into pLEGFP-C1. Restriction analysis and sequencing were used to confirm the structure of pLEGFP-mIFNγ. Neural stem cells were transfected by supernatant of PA317. Results A DNA fragment in size of 500 bp was amplified. Restriction analysis showed that the amplified gene was inserted into pLEGFP-C1 correctly. Conclusion The plasmid pLEGFP-mIFNγ is constructed successfully,and it can transfect neural stem cells.

Key words: plasmids, stem cells, transfection

中图分类号: 

  • Q78