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辐射诱导人TRAIL基因表达的腺病毒穿梭质粒的构建及鉴定

李艳博1,梁 硕1,董丽华2,杨 巍1,郭   

  1. 1.吉林大学公共卫生学院 卫生部放射生物学重点实验室,吉林 长春 130021;2.吉林大学第一医院肿瘤中心放疗科,吉林 长春 130021;3 .吉林大学公共卫生学院卫生毒理学教研室,吉林 长春 130021
  • 收稿日期:2007-09-12 修回日期:1900-01-01 出版日期:2008-05-28 发布日期:2008-05-28
  • 通讯作者: 龚守良

Construction and identification of recombinant adenoviral shuttle vector with radiation-inducible TRAIL gene

LI Yan-bo1, LIANG Shuo1, DONG Li-hua2, YA   

  1. 1.MH Radiobiology Research Unit, School of Public Health, Jilin University, Changchun 130021, China;2.Department of Radiotherapy, Tumor Center, First Hospital, Jilin University, Changchun 130021,China; 3.Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, China
  • Received:2007-09-12 Revised:1900-01-01 Online:2008-05-28 Published:2008-05-28
  • Contact: GONG Shou-liang

摘要: 目的:构建辐射敏感Egr-1启动子诱导人肿瘤坏死因子(TNF)相关凋亡诱导配体(TRAIL)基因表达的腺病毒穿梭质粒pshuttle-Egr1-hTRAIL。方法:利用逆转录-聚合酶链式反应(RT-PCR)方法从pACCMV-hTRAIL质粒中扩增得到TRAIL基因片段,并将其连接到pMD19T载体进行测序,利用基因重组技术构建含有辐射诱导启动子Egr-1的腺病毒穿梭质粒pshuttle-Egr1-hTRAIL。结果:PCR扩增出约820 bp的片段,测序结果证实扩增片段的序列与GenBank公布(NM_003810)的一致。pshuttle-Egr1-hTRAIL用EcoRⅠ、KpnⅠ双酶切重组得到大小为3 540和4 299 bp的2个片段,用SmaⅠ酶切得到1 517、2 282和4 040 bp 的3个片段,用BamHⅠ酶切得到3 304和4 535 bp的2个片段,与预期结果完全一致。结论:成功克隆了hTRAIL基因,并构建了辐射诱导表达的腺病毒穿梭质粒pshuttle-Egr1-hTRAIL。

关键词: 克隆, 分子, 腺病毒, 辐射, Egr-1

Abstract: Abstract:Objective To construct a recombinant adenoviral shuttle vector pshuttle-Egr1-hTRAIL containing radiation-sensitive Egr-1 promoter and TNF-related apoptosis-inducing ligand (TRAIL). Methods The TRAIL gene fragment was acquired from the plasmid pACCMV-hTRAIL by RT-PCR.Then the TRAIL gene was ligated to pMD19T vector and sequenced.With the gene recombinant technique, the recombinant plasmid pshuttle-Egr1-hTRAIL with radiation-inducible promoter Egr-1 was constructed. Results A fragment about 820 bp was amplified by PCR, and the sequence of acquired hTRAIL gene was totally in concordance with that published in GenBank(NM_003810).Moreover, the recombinant plasmid pshuttle-Egr1-hTRAIL was digested by EcoRⅠand KpnⅠdouble-enzyme and BamHⅠsingly both into two fragments, with the length of 3 540 and 4 299 bp, 3 304 and 4 535 bp,  respectively.The SmaⅠenzyme could digest it into three fragments with lengths of 1 517, 2 282 and 4 040 bp.The results of enzyme identification were all in concordance with that expected. Conclusion The hTRAIL gene is cloned and the recombinant plasmid pshuttle-Egr1-hTRAIL is constructed successfully.

Key words: cloning, molecular, adenovirus, radiation, Egr-1

中图分类号: 

  • R730.55