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ID:33711926
大小:4.52 MB
页数:62页
时间:2019-02-28
《肺癌细胞对顺铂耐药的fabrca途径机制研究》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、江苏大学硕士学位论文肺癌细胞对顺铂耐药的FA/BRCA途径机制研究姓名:胡一明申请学位级别:硕士专业:内科学指导教师:李坚20120609江苏大学硕士学位论文摘要目的:通过检测经顺铂(DDP)处理后的肺癌细胞增殖抑制率变化,以及肺癌细胞FANCC、FANCF、FANCLmRNA和蛋白表达水平的变化,研究FA/BRCA途径的DNA损伤修复功能在肺癌细胞对DDP耐药机制中的作用。方法:体外培养肺癌细胞株A549、Calu.1和SK.MES.1,采用CCK.8法分别测定经不同浓度DDP处理三个肺癌细胞株24h、48h后的细胞增殖抑制率。用不同浓度DDP处理肺癌细胞后,收集
2、细胞,分别提取总RNA和总细胞裂解物,采用实时荧光定量RT-PCR技术(QRT-PCR)测定三个肺癌细胞株中的FANCC、FANCF、FANCLmRNA表达,应用Westemblotting检测它们的蛋白表达。结果:(1)肺癌细胞A549和Calu.1的细胞增殖抑制率均随DDP浓度和作用时间的不同而变化,呈剂量依赖性(尸3、g/ml和20lag/ml浓度DDP处理48h后,FANCCmRNA表达明显增高(尸4、增高后降低(尸5、癌细胞Calu.1、SK.MES.1对DDP的耐药性显著高于肺癌细胞A549。肺癌细胞Calu—l和SK.MES.1对DDP耐药性增高的机制之一可能是FA/BRCA途径中FANCF和FANCC蛋白高表达的结果,FA/BRCA途径的DNA损伤修复功能在肺癌细胞对DDP耐药中发挥了一定的作用。关键词:肺癌细胞;顺铂;FA/BRCA途径;药物耐受江苏大学硕士学位论文ABSTRACT0bjectiveTostudytheeffectoffanconianemia(FA/BRCA)pathwayinthemechanismofcisplatin(DDP)resistanceo6、flungcancel"cellsbyanalyzingtherelationshipbetweentheproliferationinhibitionrateoflungcancercellsandFANCC,FANCFandFANCLmRNA,andproteinexpressionaftertreatmentofvariantconcentrationcisplatin.MethodsTheproliferationinhibitionratesoflungcancercelllinesA549,Calu-1andSK·MES-1aftertreatmento7、fvariantconcentrationDDPweremeasuredusingtheCCK-8assay.Theexpressionlevelsof’FANCC,FANCFandFANCLmRNAweredetectedbyreal-timefluorescentquantitativePCR(RFQ—PCR).TheexpressionsofFANCC,FANCFandFANCLproteinsweredeterminedbyWesternblotting.Results(1)Theratesofproliferationinhibitingofthree
3、g/ml和20lag/ml浓度DDP处理48h后,FANCCmRNA表达明显增高(尸4、增高后降低(尸5、癌细胞Calu.1、SK.MES.1对DDP的耐药性显著高于肺癌细胞A549。肺癌细胞Calu—l和SK.MES.1对DDP耐药性增高的机制之一可能是FA/BRCA途径中FANCF和FANCC蛋白高表达的结果,FA/BRCA途径的DNA损伤修复功能在肺癌细胞对DDP耐药中发挥了一定的作用。关键词:肺癌细胞;顺铂;FA/BRCA途径;药物耐受江苏大学硕士学位论文ABSTRACT0bjectiveTostudytheeffectoffanconianemia(FA/BRCA)pathwayinthemechanismofcisplatin(DDP)resistanceo6、flungcancel"cellsbyanalyzingtherelationshipbetweentheproliferationinhibitionrateoflungcancercellsandFANCC,FANCFandFANCLmRNA,andproteinexpressionaftertreatmentofvariantconcentrationcisplatin.MethodsTheproliferationinhibitionratesoflungcancercelllinesA549,Calu-1andSK·MES-1aftertreatmento7、fvariantconcentrationDDPweremeasuredusingtheCCK-8assay.Theexpressionlevelsof’FANCC,FANCFandFANCLmRNAweredetectedbyreal-timefluorescentquantitativePCR(RFQ—PCR).TheexpressionsofFANCC,FANCFandFANCLproteinsweredeterminedbyWesternblotting.Results(1)Theratesofproliferationinhibitingofthree
4、增高后降低(尸5、癌细胞Calu.1、SK.MES.1对DDP的耐药性显著高于肺癌细胞A549。肺癌细胞Calu—l和SK.MES.1对DDP耐药性增高的机制之一可能是FA/BRCA途径中FANCF和FANCC蛋白高表达的结果,FA/BRCA途径的DNA损伤修复功能在肺癌细胞对DDP耐药中发挥了一定的作用。关键词:肺癌细胞;顺铂;FA/BRCA途径;药物耐受江苏大学硕士学位论文ABSTRACT0bjectiveTostudytheeffectoffanconianemia(FA/BRCA)pathwayinthemechanismofcisplatin(DDP)resistanceo6、flungcancel"cellsbyanalyzingtherelationshipbetweentheproliferationinhibitionrateoflungcancercellsandFANCC,FANCFandFANCLmRNA,andproteinexpressionaftertreatmentofvariantconcentrationcisplatin.MethodsTheproliferationinhibitionratesoflungcancercelllinesA549,Calu-1andSK·MES-1aftertreatmento7、fvariantconcentrationDDPweremeasuredusingtheCCK-8assay.Theexpressionlevelsof’FANCC,FANCFandFANCLmRNAweredetectedbyreal-timefluorescentquantitativePCR(RFQ—PCR).TheexpressionsofFANCC,FANCFandFANCLproteinsweredeterminedbyWesternblotting.Results(1)Theratesofproliferationinhibitingofthree
5、癌细胞Calu.1、SK.MES.1对DDP的耐药性显著高于肺癌细胞A549。肺癌细胞Calu—l和SK.MES.1对DDP耐药性增高的机制之一可能是FA/BRCA途径中FANCF和FANCC蛋白高表达的结果,FA/BRCA途径的DNA损伤修复功能在肺癌细胞对DDP耐药中发挥了一定的作用。关键词:肺癌细胞;顺铂;FA/BRCA途径;药物耐受江苏大学硕士学位论文ABSTRACT0bjectiveTostudytheeffectoffanconianemia(FA/BRCA)pathwayinthemechanismofcisplatin(DDP)resistanceo
6、flungcancel"cellsbyanalyzingtherelationshipbetweentheproliferationinhibitionrateoflungcancercellsandFANCC,FANCFandFANCLmRNA,andproteinexpressionaftertreatmentofvariantconcentrationcisplatin.MethodsTheproliferationinhibitionratesoflungcancercelllinesA549,Calu-1andSK·MES-1aftertreatmento
7、fvariantconcentrationDDPweremeasuredusingtheCCK-8assay.Theexpressionlevelsof’FANCC,FANCFandFANCLmRNAweredetectedbyreal-timefluorescentquantitativePCR(RFQ—PCR).TheexpressionsofFANCC,FANCFandFANCLproteinsweredeterminedbyWesternblotting.Results(1)Theratesofproliferationinhibitingofthree
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