Expression of TIMP-3 Gene by Construction of a Eukaryotic Cell Expression Vector and Its Role in Reduction of Metastasis in a Human Breast Cancer Cell Line-中国期刊网

摘要 ThepresentstudyisaimedatstudyingthegeneforTIMP-3,amammaliantissueinhibitor,byconstructingarecombinanteukaryoticcellvectorforgenetherapyinhumanbreastcancer.WeobtainedtheTIMP-3genefromthehumanplacentbyRT-PCR.TIMP-3genewassubclonedintopcDNA3.1vetorfrompMD18TvectorbymeansofgenecloningtoconstructpcDNA3.1recombinantvector.HumanbreastcancercelllineMDA-MB-453wastransfectedwithpcDNA3.1-TIMP3recombinantvectorusinglipofectaminereagent.ThentheexpressionofTIMP-3andtheeffectonthemetastasisofMDA-MB-453wereexamined.ThecorrectconstructionofpcDNA-TIMP3wasidentifiedbymeansofrestrictionenzymeanalysis,PCRamplicationandnucleotidesequencing.WesternblottingshowedthatthetransfectedcellswereabletoexpressTIMP-3,indicatingthatourconstructionofthepcDNA-TIMP3eukaryoticexpressionvectorwasconstructedsuccessfully.OurexperimentsfurtherindicatedthatthepotentialofmetastasiswassignificantlyreducedforthetransfectedcelllineMDA-MB-453.

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Expression of TIMP-3 Gene by Construction of a Eukaryotic Cell Expression Vector and Its Role in Reduction of Metastasis in a Human Breast Cancer Cell Line

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Expression of TIMP-3 Gene by Construction of a Eukaryotic Cell Expression Vector and Its Role in Reduction of Metastasis in a Human Breast Cancer Cell Line

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