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ID:5311352
大小:1.93 MB
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时间:2017-12-07
《rnai沉默pelpi mnar基因对子宫内膜癌细胞增殖和细胞周期的作用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、第34卷第6期中山大学学报(医学科学版)Vo1.34No.62013年11月JOURNALOFSUNYAT—SENUNIVERSITY(MEDICALSCIENCES)Nov.2013.基础研究·RNAi沉默PELPI/MNAR基因对子宫内膜癌细胞增殖和细胞周期的作用万琛.李小毛(中山大学附属第三医院妇科,广东广州510630)摘要:【目的】构建脯氨酸一谷氨酸一亮氨酸富集蛋白1(PELP1)基因慢病毒表达载体,研究沉默PELP1/雌激素受体非基因组活性辅助调节因子(PELP1/MNAR)基因表达对子宫内膜癌细胞增殖和周期的作用及机制。【方法】构建合成靶向PELP
2、1/MNARRNAi慢病毒表达载体,并转染子宫内膜癌Ishikawa细胞,Real—timePCR和westernblot检测PELP1/MNARmRNA和蛋白水平的表达。使用普通培养基和加入E2的培养基培养各组细胞,MTI"检测各组细胞增殖情况;流式细胞仪检测细胞生长周期情况;Westernblot检测ER下游靶基因c—fos,cyclinD1的蛋白表达水平。【结果】成功构建合成靶向PELP1/MNARRNAi慢病毒表达载体,转染子宫内膜癌Ishikawa细胞,转染后PELP1/MNARmRNA的表达和蛋白的表达分别下降86%和65%(P<0.05)。转染后I
3、shikawa细胞与对照组相比增殖抑制(P<0.05),细胞周期G0/G1期细胞比例增加,S期细胞比例减少(P<0.05)。加入雌激素后,三组细胞的生长速度加快,细胞S期的比例增加,转染组增殖抑制明显(P<0.05),S期比例降低(P4、/雌激素受体非基因组活性辅助调节因子;慢病毒中图分类号:R73文献标志码:A文章编号:1672—3554(2013)06—0811-08EfectsofSilencingPELP1/MNARExpressionbyRNAInterferenceonProliferationandCellCycleofEndometrialCancerCellsWANJing,LIXiao—mao(DepartmentofGynecology,TheThirdAffiliatedHospital,SunYat—SunUniversity,Guangzhou510630,China5、)Abstract:【Objective】ToestablishalentiviralvectorbasedRNAinterferenceexpressionsystemtargetingPELP1/MNARtoobtainstabletranscriptknockdown,andinvestigatetheeffectofdown—regulationofPELP1/MNARonproliferation,cellcycleofendometrialcancercellwithorwithoutestrogenstimulation,anditsmechani6、sms.【Methods】TheshRNAoligonueleotidestargetingtoPELP1/MNARgeneweresynthesizedandclonedtogenerateshRNAlentivirusexpressivevectors.EndometrialcancercellIshikawawastransfected.andgenesilencingeffeetwasdeterminedbyrea1.timePCRandWesternblotanalysisonthelevelofmRNAandprotein.Withorwithout7、E2stimulation,theproliferationrateoftransfectedIshikawacellsweredetectedbyMq3";cellcycleweremeasuredbyflowcytometry.rr}leproteinexpressionoftheERtargetgenecofos,cyclinD1weredetectedbyWesternblot.【Result】TheRNAilentivimsexpressionvectortargetingPELP1/MNARsequencewereconstructedandthee8、ndometrialca
4、/雌激素受体非基因组活性辅助调节因子;慢病毒中图分类号:R73文献标志码:A文章编号:1672—3554(2013)06—0811-08EfectsofSilencingPELP1/MNARExpressionbyRNAInterferenceonProliferationandCellCycleofEndometrialCancerCellsWANJing,LIXiao—mao(DepartmentofGynecology,TheThirdAffiliatedHospital,SunYat—SunUniversity,Guangzhou510630,China
5、)Abstract:【Objective】ToestablishalentiviralvectorbasedRNAinterferenceexpressionsystemtargetingPELP1/MNARtoobtainstabletranscriptknockdown,andinvestigatetheeffectofdown—regulationofPELP1/MNARonproliferation,cellcycleofendometrialcancercellwithorwithoutestrogenstimulation,anditsmechani
6、sms.【Methods】TheshRNAoligonueleotidestargetingtoPELP1/MNARgeneweresynthesizedandclonedtogenerateshRNAlentivirusexpressivevectors.EndometrialcancercellIshikawawastransfected.andgenesilencingeffeetwasdeterminedbyrea1.timePCRandWesternblotanalysisonthelevelofmRNAandprotein.Withorwithout
7、E2stimulation,theproliferationrateoftransfectedIshikawacellsweredetectedbyMq3";cellcycleweremeasuredbyflowcytometry.rr}leproteinexpressionoftheERtargetgenecofos,cyclinD1weredetectedbyWesternblot.【Result】TheRNAilentivimsexpressionvectortargetingPELP1/MNARsequencewereconstructedandthee
8、ndometrialca
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