欢迎来到天天文库
浏览记录
ID:34118662
大小:2.44 MB
页数:35页
时间:2019-03-03
《重组pegfp-n1-cd146表达载体的构建及其对mda-mb-231细胞侵袭、凋亡的影响》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、青岛大学硕士学位论文重组pEGFP--N1--CD146表达载体的构建及其对MDA--MB--231细胞侵袭、凋亡的影响姓名:伦明申请学位级别:硕士专业:免疫学指导教师:高美华20120529重组pEGFP-N1一CDI46表达载体的构建及其对MDA-MB-231细胞侵袭、凋亡的影响中文摘要目的:构建人类CDl46基因的表达载体,研究其对乳腺癌细胞MDA—MB-231细胞侵袭、凋亡的影响。方法:采用分子生物学方法构建人类CDl46基因的表达载体,利用脂质体Lipofectamine2000转染到乳腺癌细胞MDA—MB-231,于荧光显微镜下评价转染效果,利用RT.PCR、Westernblo
2、t分别检测基因CDl46在mRNA、蛋白水平上的表达效果。采用MTT法检测细胞在体外增殖的能力;流式细胞仪法FCM检测细胞的周期分布及凋亡水平的变化情况;Transwell实验观察细胞侵袭能力改变。结果:酶切、测序结果均表明pEGFP-Nl-CDl46载体构建成功;RT—PCR、Westernblot结果显示,与对照组相比,转染细胞后,实验组CDl46mRNA和蛋白的水平表达均有增高(K0.05);增殖实验结果显示转染后实验组细胞增值能力较对照组细胞增高(尸3、细胞明显增强(P4、anbreastcancercellMB.MDA231.MethodsAccordingtoaseriesofmolecularbiologymethods,theCD146overexpressionplasmidWasconstructed.ThevectorWastransfectedintoMB-MDA231cellsbylipofeetamine,andtheexpressionofCDl46mRNAandproteinwereanalyzedbyRT-PCRandWesternblotanalysisrespectively.ThenMTTassayswereusedtoobse5、rvetheinhibitoryeffectofCD46oncellproliferationinvitro,andFCMwereusedtodetectthecellcycleandapoptosis,meanwhile,theeffectOncellinvasioni11vitrowereanalysisedbyTranswelltests.ResultspEGFP-NI·CDl46plasmidWassuccessfullyconstructedandidentifiedbyeI"IZyIllerestrictiondigestionandsequenceanalysis.Compar6、edwithcontrolgroups,theexpressionofCDl46mRNAandproteinlevelweresignificantlyincreased(P<0.05).InMB—MDA231transfeetedbypEGFP-N1-CDl46plasmids,Thegrowthabilityofceilsinexperimentalgroupwcl'ehigherthanthatofcontrolgroups(P<0.05).Comparedwithcontrolgroups,andtherateofapoptosiswasdecreasedremarkably(P7、.05).Theabilitiesofinvasionwcreincreased(尸
3、细胞明显增强(P4、anbreastcancercellMB.MDA231.MethodsAccordingtoaseriesofmolecularbiologymethods,theCD146overexpressionplasmidWasconstructed.ThevectorWastransfectedintoMB-MDA231cellsbylipofeetamine,andtheexpressionofCDl46mRNAandproteinwereanalyzedbyRT-PCRandWesternblotanalysisrespectively.ThenMTTassayswereusedtoobse5、rvetheinhibitoryeffectofCD46oncellproliferationinvitro,andFCMwereusedtodetectthecellcycleandapoptosis,meanwhile,theeffectOncellinvasioni11vitrowereanalysisedbyTranswelltests.ResultspEGFP-NI·CDl46plasmidWassuccessfullyconstructedandidentifiedbyeI"IZyIllerestrictiondigestionandsequenceanalysis.Compar6、edwithcontrolgroups,theexpressionofCDl46mRNAandproteinlevelweresignificantlyincreased(P<0.05).InMB—MDA231transfeetedbypEGFP-N1-CDl46plasmids,Thegrowthabilityofceilsinexperimentalgroupwcl'ehigherthanthatofcontrolgroups(P<0.05).Comparedwithcontrolgroups,andtherateofapoptosiswasdecreasedremarkably(P7、.05).Theabilitiesofinvasionwcreincreased(尸
4、anbreastcancercellMB.MDA231.MethodsAccordingtoaseriesofmolecularbiologymethods,theCD146overexpressionplasmidWasconstructed.ThevectorWastransfectedintoMB-MDA231cellsbylipofeetamine,andtheexpressionofCDl46mRNAandproteinwereanalyzedbyRT-PCRandWesternblotanalysisrespectively.ThenMTTassayswereusedtoobse
5、rvetheinhibitoryeffectofCD46oncellproliferationinvitro,andFCMwereusedtodetectthecellcycleandapoptosis,meanwhile,theeffectOncellinvasioni11vitrowereanalysisedbyTranswelltests.ResultspEGFP-NI·CDl46plasmidWassuccessfullyconstructedandidentifiedbyeI"IZyIllerestrictiondigestionandsequenceanalysis.Compar
6、edwithcontrolgroups,theexpressionofCDl46mRNAandproteinlevelweresignificantlyincreased(P<0.05).InMB—MDA231transfeetedbypEGFP-N1-CDl46plasmids,Thegrowthabilityofceilsinexperimentalgroupwcl'ehigherthanthatofcontrolgroups(P<0.05).Comparedwithcontrolgroups,andtherateofapoptosiswasdecreasedremarkably(P7、.05).Theabilitiesofinvasionwcreincreased(尸
7、.05).Theabilitiesofinvasionwcreincreased(尸
此文档下载收益归作者所有