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时间:2019-05-16
《JTVl基因siRNA重组表达质粒的构建及其对K562细胞增殖的影响》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·148·中国生物制品学杂志2012年2月第25卷第2期ChinJBiologicalsFebruary2012,Vo1.25No.2·基础研究·JTV1基因siRNA重组表达质粒的构建及其对K562细胞增殖的影响吴燕,刘北忠。,-,王舯,钟梁,朱丹,王春光。,黎亮,高艳军【摘要】目的构建JⅣ1基因siRNA重组表达质粒,转染K562细胞,鉴定其干扰作用。方法人工合成靶向JTv1基因的siRNA干扰序列,克隆至载体pGeneSil.1上,构建重组表达质粒pGeneSil.1.JTv1.1.1siRNA,转染人K562细胞,经G418稳定筛选后,采用RT.P
2、CR及Westernblot法分别检测重组表达质粒对K562细胞中JTv1基因转录和翻译的影响;MTI"法检测抑制JTV1基因的表达对K562细胞增殖的影响。结果重组表达质粒pGeneSil一1一JTV1.1.1siRNA经测序证明构建正确;其转染K562细胞后,细胞JTV1基因的转录和翻译水平均明显降低;抑制JrV1的表达可促进K562细胞增殖。结论已成功构建了pGeneSil一1一J1v1.1.1siRNA质粒,并获得了稳定的JTvI基因表达受抑的K562细胞克隆,为进一步研究JTV1基因的功能及其与肿瘤的相关性奠定了基础。【关键词】JTv1基因;RN
3、A干扰;K562细胞【中国图书分类号】Q782R73.36+2【文献标识码】A【文章编号】1004.5503(2012)02.0148.05ConstructionofsiRNAexpressionvectorforJTV1geneanditsefectonproliferationofK562cellsWUYan,LIUBei—zhong,WANGChong,ZHONGLiang,ZHUDan,WANGChun—guang,LILiang,GAOYan—jun(‘CentralLaboratoryofYongchuanHospitalAffiliated
4、toChongqingMedicalUniversity,Chongqing400016,China)【Abstract】ObjectiveToconstructthesiRNAexpressionvectorforJ,rV1gene,transfecttoK562cellsandidentifyitsinterferenceeffect.MethodsThesiRNAinterferingsequencetargetingtoJTv1genewassynthesizedandclonedintovectorpGeneSil.1_Theconstructe
5、drecombinantplasmidpGeneSil一1.JTV1.1.1siRNAwastransfectedtohumanK562cells.ThepositivecloneswerescreenedwithG418,basedonwhichtheefectofrecombinantplasmidpGeneSil-1.JTV1.1.1siRNAontranscriptionandtranslationofJTVlgeneinK562cellswasinvestigatedbyRT—PCRandWesternblot,andthatofJTV1gene
6、expressiononproliferationofK562cellsbyMTYmethod.ResultsSequencingprovedthatrecombinantplasmidpGeneSil一1一JTV1—1.1siRNAwasconstructedcorrectly.BoththetranscriptionandtranslationlevelsofJTV1geneinK562cellstransfectedwiththerecombinantplasmiddecreasedsignificantly.TheinhibitionofJTV1e
7、xpressionpromotedtheproliferationofK562cells.ConclusionRecombinantplasmidpGeneSiI一1.儿V1-1.1siRNAwassuccessfullyconstructed,andstableK562cellclonesinwhichtheexpressionofJⅣ1genewasinhibitedwereobtained,whichlaidafoundationoffurtherstudyonfunctionofJTV1geneanditscorelationtotumor.【Ke
8、ywords】JrV1gene;RNAinterference;K
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