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时间:2020-05-20
《雷帕霉素联合顺铂对宫颈癌Hela细胞生长和对HIF—lα与VEGF表达影响的观察-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中华肿瘤防治杂志2013年7月第2,3卷第l4期CHINJCANCERPREVTREAT,July2013,Vo1.20No.14《实验研究/论著l雷帕霉素联合顺铂对官颈癌Hela细胞生长和对HIF—la与VEGF表达影响的观察吴洁玲韩璐杨丽肖。1.大连市妇产医院妇科,辽宁大连1160332.北京市房山区妇幼保健院妇产科,北京102488【摘要】目的:探讨mTOR抑制剂雷帕霉素与顺铂联合应用对宫颈癌Hela细胞生长的抑制作用及对HIF-1a和VEGF表达的影响。方法:分别以雷帕霉素、顺铂及雷帕霉素联合顺铂处理体外培养人宫颈癌Hela
2、细胞,采用MTT比色法检测人宫颈癌Hela细胞的抑制率,金氏公式评价两药联合用药的效果,采用RT—PCR法、蛋白质印迹法检测各组细胞HIF_1a和VEGFmRNA和蛋白的表达。结果:雷帕霉素和顺铂对宫颈癌Hela细胞的生长有明显的抑制作用,并呈剂量依赖性,分别联合应用2种浓度雷帕霉素(1O和20nmol/mL)与顺铂(0.25和0.5mg/mL)协同治疗指数口值均>1.15,两者有协同作用。雷帕霉素与顺铂联合用药HIF-1mRNA的表达为0.242±0.048,单独用药雷帕霉素组为0.428士0.068,顺铂组为0.357士0.05
3、1;雷帕霉素与顺铂联合用药组VEGFmRNA的表达为0.498土0.093,单独用药雷帕霉素组为0.651土0.112,顺铂组为0.623±0.125,联合用药组与单独用药组比较表达量明显降低,P4、低,P<0.05。结论:单独及联合应用雷帕霉素与顺铂对宫颈癌Hela细胞的生长均有抑制作用,两药联合应用有明显的协同作用,雷帕霉素联合顺铂具有明显下调HIF_1a、VEGF基因和蛋白表达的作用。【关键词】雷帕霉素;顺铂;HIF_1a;VEGF;Hela细胞、中华肿瘤防治杂志,2013,20(14);1075—1078EffectofrapamycincombinedwithcisplatinonthegrowthofHelacellsinvitroandtheexpression0fHIF.1aandVEGFWUJie-ling,H5、ANLu,YANGLi—Xiao1.DepartmentofGynecologY,DalianObstetricsandGynecologyHospital,Dn£nz口。,zg116033,P.R.China2.DepartmentofObstetric:;andGynecologyMaternalandChildHealthHospiotal,Fangshandistrict,Beijing102488,P.R.Cina[ABSTRACT]OBJECTIVE:Toeximinetheeffectofrapamycincombin6、edwithcisplatinontheinhibitionofHelacellsinvitroandtheexpressionofHIF-1nandVEGF.METHODS:CervicalcarcinomaHelaeellweretreatedbyrapamycin,cispla—tin,rapamycinandcisplatinrespectively.TheinhibitoryeffectsofchemotherapyontheproliferationofHelacellweremeasuredwithMTTassay,a7、ndthecombinedeffectofrapamycinandcisplatinwereevaluatedusingKing’sformula.TheexpressionsofmRNAandtheproteinoftheHIF_1dandVEGFweredetectedusingtranscription-polymerasechainreac—tion(RT—PcR)andWesternBlot.RESULTS:Bothrapamycinandcisplatinshowedinhibitoryeffectonprolifera8、tionofHe—lacellsandwithdose-dependenceintwoconcentrationsofrapamycin(10and20nmol/mL)andcisplatin(0.25andO.5mg/mL)resp
4、低,P<0.05。结论:单独及联合应用雷帕霉素与顺铂对宫颈癌Hela细胞的生长均有抑制作用,两药联合应用有明显的协同作用,雷帕霉素联合顺铂具有明显下调HIF_1a、VEGF基因和蛋白表达的作用。【关键词】雷帕霉素;顺铂;HIF_1a;VEGF;Hela细胞、中华肿瘤防治杂志,2013,20(14);1075—1078EffectofrapamycincombinedwithcisplatinonthegrowthofHelacellsinvitroandtheexpression0fHIF.1aandVEGFWUJie-ling,H
5、ANLu,YANGLi—Xiao1.DepartmentofGynecologY,DalianObstetricsandGynecologyHospital,Dn£nz口。,zg116033,P.R.China2.DepartmentofObstetric:;andGynecologyMaternalandChildHealthHospiotal,Fangshandistrict,Beijing102488,P.R.Cina[ABSTRACT]OBJECTIVE:Toeximinetheeffectofrapamycincombin
6、edwithcisplatinontheinhibitionofHelacellsinvitroandtheexpressionofHIF-1nandVEGF.METHODS:CervicalcarcinomaHelaeellweretreatedbyrapamycin,cispla—tin,rapamycinandcisplatinrespectively.TheinhibitoryeffectsofchemotherapyontheproliferationofHelacellweremeasuredwithMTTassay,a
7、ndthecombinedeffectofrapamycinandcisplatinwereevaluatedusingKing’sformula.TheexpressionsofmRNAandtheproteinoftheHIF_1dandVEGFweredetectedusingtranscription-polymerasechainreac—tion(RT—PcR)andWesternBlot.RESULTS:Bothrapamycinandcisplatinshowedinhibitoryeffectonprolifera
8、tionofHe—lacellsandwithdose-dependenceintwoconcentrationsofrapamycin(10and20nmol/mL)andcisplatin(0.25andO.5mg/mL)resp
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