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时间:2020-05-04
《RNAi cyclin E对肝癌细胞生长的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、河南医学研究2014年5月第23卷第5期HENANMEDIcALRESEARCHMay2014.Vo1.23。No.5[9]FongCW,ChuaMS,MckieAB,eta1.Sprouty2,aninhibitorofmi-细胞癌中的表达及意义[J].中华实验外科杂志,2013,30togen·activatedproteinkinasesignalingisdown—regulatedinhepato-(6):1314.celluarcareinoma[J].CancerRes,2006,66(4):2048-205
2、8.[12]BerraE,BenizriE,GinouvesA,eta1.HIFprolyl-hydroxylase2isthe[1O]LeeCC,PutnamAJ,MirantiCK,eta1.Overexpressionofsprout2keyoxygensensorsettinglowsteady-·statelevelsofHIF-·lalphainnor-inhibitsHGF/SF—mediatedcellgrowth,invasion,migration,andcyto-moxia[J].EmboJ,2003
3、,22(16):40824090.kinesis[J].Oncogene,2004,23(30):5193-5202.(收稿日期:2014-01-29)范正军,孙涛,彭飞,等.SIAH2与细胞外信号调节激酶I/2在肝RNAicyclinE对肝癌细胞生长的影响贾海全(安阳市肿瘤医院胸一科河南安阳455000)摘要:目的:探讨RNAicyclinE对肝癌细胞生长的影响。方法:肝癌细胞系HepG2采用体外培养,选取siRNA合成双链发卡样DNA;将其重组入pGFP-V-RS得到重组子pGFP.V.RS.siCE951和pGFP.
4、V.RS.siCEl122;两重组子分别进行DNA序列测定、同源性比较;将两重组子和pGFP—V-Con分别转入人肝癌HepG2细胞中,同时设空白对照组(不转染任何质粒,仅加转染试剂)。检测4组HepG2细胞cyclinEmRNA表达情况及细胞的增殖情况。结果i经过同源性检索和优选确定cyclinE基因的siRNA载体pGFP.V.RS.siCE951和pGFP-V·RS·siCE1122;干扰1组(转染pGFP-V-RS-siCE951)和干扰2组(转染pGFP—V-RS-siCE1122)细胞cyclinEmRNA的相
5、对表达量显著低于空白对照组和无关siRNA对照组(P<0.05);干扰1组和干扰2组与空白对照组和无关siRNA对照组比较,在3、4、5d细胞孔内的吸光度值显著减少,差异有统计学意义(P<0.05)。结论:siRNA载体pGFP—V-RS·siCE951和pGFP—V-Rs—siCE1122转染人肝癌HepG2细胞能显著降低细胞cyclinE基因的表达,是理想的siRNA靶区段。抑制肝癌HepG2细胞cyclinE基因表达,可以降低肝癌HepG2细胞的生长速度。关键词:周期蛋白E;HepG2;肝癌;增殖中图分类号:R365
6、doi:10.3969/j.issn.1004-437X2014.05.004TheefectofRNAicyclinEongrowthoflivercancercellJIAHaiquan(DepartmentofThoracicSurgery,AnyangCityTumorHospital,Anyang455000,China)Abstract:Objective:ToinvestigatetheeffectsofRNAicyclinEOilgrowthoflivercancercells.Methods:HepG2c
7、elllinewasculturedinvitro.TheselectedsiRNAwereformedintodouble—strandedhairpinDNA.TworecombinantsofpGFP—V-RS—siCE951andpGFP—V—RS—siCE1122wereobtainedbyinsertionofhairpinDNAintopGFP—V—RS.DNAsequencesweredeterminedandge—netichomologywerecomparedintworecombinants.The
8、tworecombinantsandpGFP-V-ConweretransfectedintoHepG2cells,theblankcontrolgroup(addedbytransfectionreagentwithoutanytransfectionofplasmid)wassetup.Theexp
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