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• 基础研究 • 上一篇    下一篇

小鼠白细胞介素18真核表达质粒的构建及基因多态性分析

时 阳,谭 岩*,刘力华,太京华,方艳秋,段秀梅,姜艳芳,许淑芬   

  1. 吉林大学第一医院中心实验室,吉林 长春130021
  • 收稿日期:2003-11-11 修回日期:1900-01-01 出版日期:2004-03-28 发布日期:2004-03-28
  • 通讯作者: 谭 岩

AConstruction of recombinant eukaryotic expressing plasmidof mouse IL-18 and analysis of its gene polymorphism

SHI Yang, TAN Yan*, LIU Li-hua, TAI Jing-hua, FANG Yan-qiu, DUAN Xiu-mei, JIANG Yan-fang, XU Shu-fen   

  1. Central Laboratory, First Hospital, Jilin University, Changchun 130021, China
  • Received:2003-11-11 Revised:1900-01-01 Online:2004-03-28 Published:2004-03-28
  • Contact: TAN Yan

摘要: 目的:构建小鼠白细胞介素18(mIL-18)的重组真核表达质粒,制备有效的免疫佐剂。 方法:通过RT-PCR分别从BALB/c小鼠和Swiss小鼠肝组织总RNA中扩增mIL-18,并将其连接于载体pcDNA3中,再用双酶切及测序方法鉴定重组质粒。 结果:构建出两组重组质粒,其中从BALB/c小鼠中获得的mIL-18序列与Genbank中序列完全一致,而从Swiss小鼠中获得的mIL-18序列有两个点突变。结论:重组质粒pcIL-18构建成功,且发现mIL-18具有未见报道的点突变,已登录于Genbank。这为研制抗肿瘤DNA疫苗,增强疫苗疗效奠定基础。

关键词: 真核表达质粒, 佐剂, 免疫, 多态现象(遗传学)

Abstract: Objective To construct recombinant Murine IL-18 (mIL-18) plasmid which could be expressed in eukaryotic systems and be used as immunoadjuvant. Methods mIL-18 was amplified from BALB/c and Swiss mouse liver mRNA by RT-PCR, and ligated orientatively into the eukaryotic expressing plasmid pcDNA3. The recombinant plasmids, pcIL-18,were evaluated with endorebonuclease digestion and sequencing. Results Two recombinant plasmids were constructed. The sequence of mIL-18 from BALB/c mouse was consistent with that of Genbank, while the one from Swiss mouse had two point mutations. Conclusion Two recombinant plasmids pcIL-18 are constructed successfully. They will play a key role in reinforcing DNA vaccine. And gene polymophism in mIL-18 has been found and received by Genbank (AY362457).

Key words: eukaryotic expressing plasmid, adjuvarits, immunologic, polymorphism (genetics)

中图分类号: 

  • Q346.5