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时间:2020-04-27
《FOXP3基因3'-UTR段双荧光素酶报告载体的构建及其活性鉴定-论文.pdf》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、广西医科大学学报JOURNALOFGUANGXIMEDICALUNIVERSITY2014Apr;31(2)·17O·IRSIFOXP3基因3,-UTR段双荧光素酶报告载体的构建及其活性鉴定陈泽志李劲频△杜伟伟刘竞丽莫雪安(广西医科大学第一附属医院神经内科南宁530021)摘要目的:构建FOXP3基因3’。UTR双荧光素酶基因报告载体,并通过检测荧光素酶活性,初步分析可能调控FOXP3基因表达的miRNAs。方法:利用PCR方法,根据FOXP3基因3,_UTR序列信息设计其扩增引物,以293T细胞基因组DNA为模板PCR扩增FOXP3基因的3’。UTR序列,将其克隆到pmiRB
2、—REP0RT双荧光素酶报告载体中;运用Targetscan软件预测可能与FOXP3基因3’。UTR相互作用的miRNAs;利用Lipofectamin2000试剂将miRNAsmimics与构建好的FOXP3基因3’。UTR段双荧光素酶报告载体共转染于常规培养的293T细胞中,然后使用双荧光素酶试剂盒检测荧光素酶活性,并与空白对照相比较。结果:经酶切及基因测序验证,成功构建含有FOXP3基因3’。UTR段双荧光素酶基因报告载体;Targetscan软件预测显示,FOXP3基因3UTR可能是miR一608的作用靶位点;双荧光报告显示,miR一608mimics组比空白对照组[(
3、0.7000q-0.01641)比(1_000±0.05575)(P4、SACTIVITYChenZezhi,LiJinpin,DuWeiwei,LiuJingli,MoXuean.(DepartmentofNeurology,theFirstAffiliatedHospitalofGuangxiMedicalUniversity,Nanning530021,China)AbstractObjective:Toconstructthedual—luciferasereporterassayvectorwhichcontainsFOXP3gene3一untranslatedregionandanalyzethemiRNAsmodulatedFOXP35、expressionbydetectingtheluciferaseactiv—ityofFOXP3gene3’untranslatedregion.Methods:The3’UTRfragmentofFOXP3genewasamplifiedbyPCRfromgenomicDNAof293Tcellsandinsertedintoadualluciferasereportervector(pmiR—RB—RE—PORT川vector)whichwasdigestedbyenzyme.ThemiRNAstargetingFOXP3gene3’untranslatedre—gio6、nwaspredictedbytargetscan.293Tcellsweretreatedwiththedual—luciferasereporterassayvectororemptyvectorandmiR一608mimicsorcontrolthroughtransfectionreagent.TheactivityofluciferasewasanalysedbytheDualLuciferaseReporterAssaySystem.Results:3’一UTRfragmentofFOXP3genewassuccessfullyclonedintothepmiR—R7、B—REPORTvector.whichwasverifiedbyXhoIdigestionandDNAsequencing.ThepredictedmiRNAstargeting3’一UTRofFOXP3maybemiR一608.Ascomparedwiththecontrolgroup(1.000±0.05575),theluciferaseactivityofpmiR—RB—REPORT一FOXP3gene3’一UTRtreatedwithmiR一608mimics(O.7000±0.
4、SACTIVITYChenZezhi,LiJinpin,DuWeiwei,LiuJingli,MoXuean.(DepartmentofNeurology,theFirstAffiliatedHospitalofGuangxiMedicalUniversity,Nanning530021,China)AbstractObjective:Toconstructthedual—luciferasereporterassayvectorwhichcontainsFOXP3gene3一untranslatedregionandanalyzethemiRNAsmodulatedFOXP3
5、expressionbydetectingtheluciferaseactiv—ityofFOXP3gene3’untranslatedregion.Methods:The3’UTRfragmentofFOXP3genewasamplifiedbyPCRfromgenomicDNAof293Tcellsandinsertedintoadualluciferasereportervector(pmiR—RB—RE—PORT川vector)whichwasdigestedbyenzyme.ThemiRNAstargetingFOXP3gene3’untranslatedre—gio
6、nwaspredictedbytargetscan.293Tcellsweretreatedwiththedual—luciferasereporterassayvectororemptyvectorandmiR一608mimicsorcontrolthroughtransfectionreagent.TheactivityofluciferasewasanalysedbytheDualLuciferaseReporterAssaySystem.Results:3’一UTRfragmentofFOXP3genewassuccessfullyclonedintothepmiR—R
7、B—REPORTvector.whichwasverifiedbyXhoIdigestionandDNAsequencing.ThepredictedmiRNAstargeting3’一UTRofFOXP3maybemiR一608.Ascomparedwiththecontrolgroup(1.000±0.05575),theluciferaseactivityofpmiR—RB—REPORT一FOXP3gene3’一UTRtreatedwithmiR一608mimics(O.7000±0.
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