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ID:33160045
大小:2.99 MB
页数:41页
时间:2019-02-21
《gmⅱ沉默对胃癌细胞bgc-823侵袭性作用的影响》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、重庆医科大学硕士学位论文GMⅡ沉默对胃癌细胞BGC--823侵袭性作用的影响姓名:朱嫦申请学位级别:硕士专业:病理学与病理生理学指导教师:易永芬201205重庆医科大学硕士研究生学位论文GMⅡ沉默对胃癌细胞BGC一823侵袭性作用的影响摘要目的:构建shIⅢA干扰质粒抑制GMII基因的表达,探讨其对胃癌侵袭能力的影响及其可能涉及到的分子机制。方法:将合成的靶向GMII基因的pGPu6/GFP/Neo.GMII.1406,应用阳离子脂质体法转染至胃癌细胞BGC.823,荧光倒置显微镜观察计算转染率,RT-PCR和W色stem-blot检测GMII基因和蛋白的表
2、达情况,应用RT-PCR,Westem-blot检测转染前后MMP.2、MMP.9IIRNA和蛋白表达变化,利用细胞划痕试验检测GMII被沉默后的细胞侵袭能力的变化,用Transwell侵袭小室法来测定GMII被沉默后侵袭能力的变化。结果:将重组质粒成功稳定转染入胃癌细胞BGC.823,平均转染率为70%;与对照组相比,转染重组质粒pGPU6/GFP/Neo.GMII.1406后的BGC.823细胞的GMII和MMP.2、MMP.9的rnJ酬A和蛋白表达呈下降趋势(P3、6组与对照组相比,GMII被沉默后的胃癌细胞的侵袭能力降低(P4、RATIONoFHUⅣ【ANGASTRICCANCERBGC一823CELLSObjectiVeTbobserVenlee仔bctsaIldmolecularmechamsmsofGMII—shRNAonthe血grationabil毋ofgas仃icc锄cercells.MemodsTosynthesistarget迦GMIIpGPU6/GFP/Neo.GMII-l406,Therecombinantplasmidw邪廿anS危ctedirltogastriccaIlcercellwithLipofactarI血e.WbuSedFluorescencern5、jcroscopytosurveyandcalculatethe仃a11sfectione伍ciency;theGMIIexpressionofproteinandIIl:RNAwercmeasuredbyImPCRandWbstem_blotassay,cl啪gesofMMP-2锄dMMP-9expressiongene觚dproteinweresun,eyedwithRT-PCR锄dWestem-blot嬲say;WcalsouSedTranswellchamberassaya11dWb岫dclosureassaytOmeasurethealterati6、onofgas仃iccancercells’sabil匆ofIIligration.ResultsReconlb血amexpressionplasmidw嬲stably仃.anS佗ctedi11toBGC-823celllines,t11eaVeragee伍ciencyof廿ans危ctionwas70%ingastriccallcercells.Incomp撕onwith觚ocon仃olgroups,GMII和MMP·2、MMP一9proteinandgemexpressionwerclowed;Cornpauredwiththecon仃ol铲oups,T7、ranswellchamberassay锄dWoulldclosureassaymeasuredtheabili够ofIIligrationofGMIIsl瓜NA伊oupwaslower(P<0.05).5重庆医科大学硕士研究生学位论文ConclusionTheGMIIsuppressionmayinKbitmigrationofgastriccancercellsbydowna由ustingtheMMP一2andMMP_9expressionKeywordsGMII;Short11a坤i11RNA;gastriccallcer;migration6重庆医科8、大学硕士研究生学位论文英文缩写TriSAGEbpcD
3、6组与对照组相比,GMII被沉默后的胃癌细胞的侵袭能力降低(P4、RATIONoFHUⅣ【ANGASTRICCANCERBGC一823CELLSObjectiVeTbobserVenlee仔bctsaIldmolecularmechamsmsofGMII—shRNAonthe血grationabil毋ofgas仃icc锄cercells.MemodsTosynthesistarget迦GMIIpGPU6/GFP/Neo.GMII-l406,Therecombinantplasmidw邪廿anS危ctedirltogastriccaIlcercellwithLipofactarI血e.WbuSedFluorescencern5、jcroscopytosurveyandcalculatethe仃a11sfectione伍ciency;theGMIIexpressionofproteinandIIl:RNAwercmeasuredbyImPCRandWbstem_blotassay,cl啪gesofMMP-2锄dMMP-9expressiongene觚dproteinweresun,eyedwithRT-PCR锄dWestem-blot嬲say;WcalsouSedTranswellchamberassaya11dWb岫dclosureassaytOmeasurethealterati6、onofgas仃iccancercells’sabil匆ofIIligration.ResultsReconlb血amexpressionplasmidw嬲stably仃.anS佗ctedi11toBGC-823celllines,t11eaVeragee伍ciencyof廿ans危ctionwas70%ingastriccallcercells.Incomp撕onwith觚ocon仃olgroups,GMII和MMP·2、MMP一9proteinandgemexpressionwerclowed;Cornpauredwiththecon仃ol铲oups,T7、ranswellchamberassay锄dWoulldclosureassaymeasuredtheabili够ofIIligrationofGMIIsl瓜NA伊oupwaslower(P<0.05).5重庆医科大学硕士研究生学位论文ConclusionTheGMIIsuppressionmayinKbitmigrationofgastriccancercellsbydowna由ustingtheMMP一2andMMP_9expressionKeywordsGMII;Short11a坤i11RNA;gastriccallcer;migration6重庆医科8、大学硕士研究生学位论文英文缩写TriSAGEbpcD
4、RATIONoFHUⅣ【ANGASTRICCANCERBGC一823CELLSObjectiVeTbobserVenlee仔bctsaIldmolecularmechamsmsofGMII—shRNAonthe血grationabil毋ofgas仃icc锄cercells.MemodsTosynthesistarget迦GMIIpGPU6/GFP/Neo.GMII-l406,Therecombinantplasmidw邪廿anS危ctedirltogastriccaIlcercellwithLipofactarI血e.WbuSedFluorescencern
5、jcroscopytosurveyandcalculatethe仃a11sfectione伍ciency;theGMIIexpressionofproteinandIIl:RNAwercmeasuredbyImPCRandWbstem_blotassay,cl啪gesofMMP-2锄dMMP-9expressiongene觚dproteinweresun,eyedwithRT-PCR锄dWestem-blot嬲say;WcalsouSedTranswellchamberassaya11dWb岫dclosureassaytOmeasurethealterati
6、onofgas仃iccancercells’sabil匆ofIIligration.ResultsReconlb血amexpressionplasmidw嬲stably仃.anS佗ctedi11toBGC-823celllines,t11eaVeragee伍ciencyof廿ans危ctionwas70%ingastriccallcercells.Incomp撕onwith觚ocon仃olgroups,GMII和MMP·2、MMP一9proteinandgemexpressionwerclowed;Cornpauredwiththecon仃ol铲oups,T
7、ranswellchamberassay锄dWoulldclosureassaymeasuredtheabili够ofIIligrationofGMIIsl瓜NA伊oupwaslower(P<0.05).5重庆医科大学硕士研究生学位论文ConclusionTheGMIIsuppressionmayinKbitmigrationofgastriccancercellsbydowna由ustingtheMMP一2andMMP_9expressionKeywordsGMII;Short11a坤i11RNA;gastriccallcer;migration6重庆医科
8、大学硕士研究生学位论文英文缩写TriSAGEbpcD
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