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Construction and secreting expression of eukaryotic expression plasmid carrying human 9 ku-granulysin gene
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- Author:
- No author available
- Journal Title:
- JOURNAL OF THE FOURTH MILITARY MEDICAL UNIVERSITY
- Issue:
- 18
- DOI:
- 10.3321/j.issn:1000-2790.2006.18.003
- Key Word:
- 颗粒溶素;真核表达质粒;分泌表达
Abstract： 目的:构建能分泌表达人9 ku颗粒溶素(granulysin)的真核质粒,为下一步利用颗粒溶素基因治疗肿瘤奠定基础.方法:以含有颗粒溶素cDNA序列的质粒为模板,通过聚合酶链反应(PCR)扩增获得含分泌肽编码基因的9 ku的颗粒溶素基因片段后,定向插入真核表达载体pBudCE4.1中,获得重组表达质粒pBudCE4.1-S9K,通过PCR,双酶切及插入片段序列测定对重组质粒进行鉴定;采用RT-PCR,免疫细胞化学与Dot-ELISA法检测pBudCE4.1-S9K在RAW264.7细胞的瞬时表达与分泌.结果:成功扩增出含分泌肽编码基因的9 ku的颗粒溶素基因片段;经酶切,PCR及测序鉴定证明得到读码框正确的重组质粒;转染细胞证实可分泌表达9 ku颗粒溶素.结论:成功构建能分泌表达9 ku颗粒溶素真核表达质粒pBudCE4.1-S9K.
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