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ID:34657466
大小:1.11 MB
页数:5页
时间:2019-03-08
《全反式维甲酸增强顺铂对a549细胞化疗敏感性及对survivin mrna和cox-2 mrna表达的影响》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、490国肿瘤临201O年第37卷第9期全反式维甲酸增强顺铂对A549细胞化疗敏感性及对SurvivinmRNA和C0X-2mRNA表达的影响王学雷陈小华路阳郭成山①马骥高万军葛言红摘要目的:体外观察全反式维甲酸(all—transretinoicacid,ATRA)增强顺铂(cisplatin,DDP)对人类非小细胞肺癌细胞株A549细胞的增殖抑制及对凋亡抑制蛋白SurvivinmRNA和环氧化酶一2(cyclooxygenase一2,COX一2)mRNA表达的影响。方法:应用不同浓度组DDP(0.5、5、50mg/L)、ATRA(
2、0.1、1、10txmol/L)以及联合用药组(ATRA1~mol/L,DDP5mg/L),处理肺腺癌细胞株A549细胞,采用四甲基偶氮唑盐(MTT)比色法观察不同浓度DDP组、不同浓度ATRA组及联合用药组对A549细胞生长的影响:应用实时荧光定量聚合酶链反应(real—tinlepolymerasechainreaction,RT—PCR)检测DDP组、ATRA组及联合用药组处理前后A549细胞中SurvivinmRNA和COX一2mRNA表达变化;应用流式细胞术观察DDP组、ATRA组及联合用药组处理前后细胞凋亡率。结果:与空
3、白对照组相比,单独应用DDP、ATRA处理A549细胞均诱导细胞凋亡,且呈浓度依赖性..与单独应用DDP的作用相比,联合用药组可更显著抑制A549的增殖,增加细胞的凋亡率(P<0.05),并增强对A549细胞SurvivinmRNA和COX一2mRNA表达的抑制作用(P<0.05);并且,流式细胞术测定结果显示联合用药组的早期凋亡率(7.37+3.83)%、中晚期凋亡率(34_37±2.08)%、继发性坏死率(7.44_+0.46)%均较单独应用DDP组高(3.55_+0.75)%、(6.62+0.33)%、(3.03+_0.05)
4、%,P均5、ssionofmRNAandCox-2mRNAinvitroWANGXuelei’,CHENXiaohua’,LUYang,GUOChengshan,MAJi,GAOWanjun’,GEYanhongCorrespondingauthor:WANGXuelei,E-mail:wxlark@sina.com’DepartmentofOncology,CentralHospitalofQiluPetrochemicalGroup,Zibo274000。ChinaHematology/OncologyDepartmentofSecondH6、ospitalAfiliatedtoShandongUniversity,Ji’nan250033,ChinaAbstractObjective:Toinvestigatetheinfluenceofcisplatin(DDP)combinedwithall-transretinoicacid(ATRA)onthegrowthandapoptosisofhumannon—smallcelllungcancerA549cellineandontheexpressionofSurvivinmRNAandCOX-2mRNAinthisce7、lllineinvitro.Methods:DiferentconcentrationsofDDP(0.5mg/L,5mg/L,and50mg/L),diferentconcentrationsofATRA(0.1pmol/L,1pmol/L,and1Opmol/L)andDDPcombinedwithATRA(DDP5mg/LandATRA1pmolL)wereusedinculturesforthepulmonarycarcinomaA549celllineindiferentgroups.TheinfluenceonA549g8、rowthinducedbydiferentconcentrationsofDDPdiferentconcentrationsofATRA,andDDPcombinedwithATRAwereanalyzedbvMTTassay.Ex
5、ssionofmRNAandCox-2mRNAinvitroWANGXuelei’,CHENXiaohua’,LUYang,GUOChengshan,MAJi,GAOWanjun’,GEYanhongCorrespondingauthor:WANGXuelei,E-mail:wxlark@sina.com’DepartmentofOncology,CentralHospitalofQiluPetrochemicalGroup,Zibo274000。ChinaHematology/OncologyDepartmentofSecondH
6、ospitalAfiliatedtoShandongUniversity,Ji’nan250033,ChinaAbstractObjective:Toinvestigatetheinfluenceofcisplatin(DDP)combinedwithall-transretinoicacid(ATRA)onthegrowthandapoptosisofhumannon—smallcelllungcancerA549cellineandontheexpressionofSurvivinmRNAandCOX-2mRNAinthisce
7、lllineinvitro.Methods:DiferentconcentrationsofDDP(0.5mg/L,5mg/L,and50mg/L),diferentconcentrationsofATRA(0.1pmol/L,1pmol/L,and1Opmol/L)andDDPcombinedwithATRA(DDP5mg/LandATRA1pmolL)wereusedinculturesforthepulmonarycarcinomaA549celllineindiferentgroups.TheinfluenceonA549g
8、rowthinducedbydiferentconcentrationsofDDPdiferentconcentrationsofATRA,andDDPcombinedwithATRAwereanalyzedbvMTTassay.Ex
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