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时间:2020-04-21
《NVP-BEZ235对肝癌HepG2细胞增殖、凋亡及侵袭转移的影响-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、·594·临床肿瘤学杂志2014年7月第19卷第7期ChineseClinicalOncology,Ju1.2014,Vo1.19,No.7NVP—BEZ235对肝癌HepG2细胞增殖、凋亡及侵袭转移的影响210003南京东南大学附属第二医院肿瘤科魏娟,祁继平,郑勤【摘要】目的探讨PI3K/AkL/mr0R双靶点抑制剂NVP—BEZ235在体外对肝癌HepG2细胞增殖、凋亡及侵袭转移的影响。方法采用0,0.01、0.1、1.0p,mol/LNVP.BEZ235处理HepG2细胞,四甲基偶氮唑盐(MrI,I1)比色法检测不同浓度
2、NVP.BEZ235处理24、48、72和96h的增殖抑制率,流式细胞仪、TransweU侵袭实验、荧光定量PCR及免疫印迹检测不同浓度NVP.BEZ235处理48h后的细胞周期分布、穿膜细胞数及基质金属蛋白酶(MMP)一2的mRNA和蛋白水平。结果NVP—BEZ235可呈剂量和时间依赖的方式升高增殖抑制率(P<0.05);除0.01~mol/'L处理24h的晚期凋亡率外,0.01、0.1、1.Olxmol/LNVP—BEZ235处理24、48h的早、晚期凋亡率均高于Owmol/L(P<0.05);0.01、0.1、1.Owm
3、ol/LNVP-BEZ235处理48h的G。/G。期细胞比例高于Op~mol/L,穿膜细胞数、MMP一2mRNA和蛋白水平及s期和G2/M期细胞比例均低于Ol~mol/L(P<0.05),且各浓度间的差异均有统计学意义(P<0.05)。结论NVP-BEZ235可抑制肝癌HepG2细胞增殖及侵袭转移,促进其凋亡和阻滞细胞在G。/G。期并降低MMP一2表达。【关键词】NVP.BEZ235;肝癌;增殖;凋亡;侵袭转移中图分类号:R735.7文献标识码:A文章编号:1009—0460(2014)07—0594—05EfectofNVP
4、-BEZ235onproliferation,apoptosis,invasionandmetastasisofHepG2cellsWEIJuan,QIJiping,ZHENGQin.DepartmentofOncology,theSecondAffiliatedHospitalofSoutheastUni-versity,Nanjing210003,ChinaCorrespondingauthor:ZHENGQin,E—mail:njzq83626472@sina,com【Abstract】ObjectiveToexplor
5、etheeffectofNVP—BEZ235ontheproliferation,apoptosis,invasionandmetastasisofHepG2Cells.MethodsTheHepG2cellsweretreatedwithdifferentconcentrationsofNVP—BEZ235(0,0.01,0.1,1.Op~mol/L).MTTwasusedtostudytheproliferationinhibitionratesat24.48.72and96htreatedwithdiferenteonc
6、entratiOEtSofNVP.BEZ235.TranswellassaywasusedtochecktheinvasionandmetastasisofHepG2cellswithNVP-BEZ235.Thecycledistributionat48haftertreatmentwithNVP—BEZ235wasdetectedbyflowcytometry.TheRT·PCRandWesternblottingwereusedtomeasurethechangeofMMP一2expression.ResultsNVP.B
7、EZ235callincreasetheproliferationinhibitionratesofHepG2cellinadose.andtime-dependentmanner.Inadditiontothelateapoptosisrateof0.01p~mol/Lat24h,theearlyandlateapoptosisratesoftheremainingconcentrationswerehigherthanthoseofOtxmo/Lat24hand48h(P<0.05).Theproportionofcell
8、sinG0/G1phaseof0.01,0.1and1.Olxmol/LNVP—BEZ235werehigherthanthoseofOp~mo/L,whilethetransmembranecellnumber,theproportionofcellsinG2/MandSp
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