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《大鼠骨髓间充质干细胞对RH-35肝癌细胞侵袭能力的影响-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、第35卷第4期西安交通大学学报(医学版)Vo1.35No.42014年7月JournalofXi’anJiaotongUniversity(MedicalSciences)Ju1.2O14◇基础研究◇大鼠骨髓问充质干细胞对RH一35肝癌细胞侵袭能力的影响袁博,陈昆仑,张岚,慕为民,王重民,刘保荣,徐心(西安交通大学医学院:1.附属西安市中心医院,陕西西安710004;2.第二附属医院,陕西西安710003)摘要:目的观察大鼠骨髓来源间充质干细胞(mesenchymalstemcells,MSCs)对RH一35肝癌细胞侵袭能力的影响。方法
2、密度梯度离心法分离培养大鼠骨髓MSCs,成骨与成脂诱导分化鉴定其分化能力。收集MSCs条件培养基(MSCs—CM),与RH一35细胞共培养72h,Transwell小室观察MSCs—CM对RH一35细胞侵袭转移能力的影响;Real-timePCR与Westernblot法检测Snail与基质金属蛋白酶一9(MMP一9)的表达。结果分离的MSCs形态均一,具有良好的成骨与成脂分化能力。在MsCs—CM(500mL/L)作用下,RH一35的侵袭能力明显增强;Real—timePCR与Westernblot均显示,MSCs—CM处理组中RH一
3、35细胞Snail和MMP一9的表达较对照组显著升高(P4、livercarcinomacelllineRH一35invitroYUANBo,CHENKun—lun,ZHANGLan。,MUWei—min,WANGZhong—min,LIUBao—rong,XUXin(1.Xi’anCentralHospital,Xi’an710004;2.theFirstAffiliatedHospital,MedicalSchoolofXi’anJiaotongUniversity,Xi’an710003,China)ABSTRACT:ObjectiveToinvestigatetheeffectsofra5、tbonemarrow·derivedmesenchymalstemcells(MSCs)oninvasivenessofratlivercarcinomacelllineRH一35invitro.MethodsRatbonemarrow.derivedMSCswereisolatedbydensitygradientcentrifugation;theisolatedcellsexpandedexvivoandthesupernatantwerecollected.Thesupernatantwasthenaddedtothecult6、uremediumofRH一35cells.Afterincubationfor72h,theinvasivenessofthecancercellswasmeasuredbyTranswellassay,themRNAandproteinlevelsofSnailandMMP一9expressionswerealsoevaluatedbyRea1.timePCRandWesternblot.ResultsCulturedMSCspresentedinauniformspindlemorphology,andthecellsalsoha7、dagoodabilityofosteogenicandadipogenicdifferentiation.Co·cultureofRH一35with500mL/LMSCconditionedmedium(MSC—CM)significantlyenhancedinvitroinvasiveness.Inaddition,comparedwiththecontrolgroup,MSC—CMcouldsignificantlypromotetheexpressionsofSnailandMMP一9ofRH·35cellsatboththe8、mRNAandproteinlevels(P
4、livercarcinomacelllineRH一35invitroYUANBo,CHENKun—lun,ZHANGLan。,MUWei—min,WANGZhong—min,LIUBao—rong,XUXin(1.Xi’anCentralHospital,Xi’an710004;2.theFirstAffiliatedHospital,MedicalSchoolofXi’anJiaotongUniversity,Xi’an710003,China)ABSTRACT:ObjectiveToinvestigatetheeffectsofra
5、tbonemarrow·derivedmesenchymalstemcells(MSCs)oninvasivenessofratlivercarcinomacelllineRH一35invitro.MethodsRatbonemarrow.derivedMSCswereisolatedbydensitygradientcentrifugation;theisolatedcellsexpandedexvivoandthesupernatantwerecollected.Thesupernatantwasthenaddedtothecult
6、uremediumofRH一35cells.Afterincubationfor72h,theinvasivenessofthecancercellswasmeasuredbyTranswellassay,themRNAandproteinlevelsofSnailandMMP一9expressionswerealsoevaluatedbyRea1.timePCRandWesternblot.ResultsCulturedMSCspresentedinauniformspindlemorphology,andthecellsalsoha
7、dagoodabilityofosteogenicandadipogenicdifferentiation.Co·cultureofRH一35with500mL/LMSCconditionedmedium(MSC—CM)significantlyenhancedinvitroinvasiveness.Inaddition,comparedwiththecontrolgroup,MSC—CMcouldsignificantlypromotetheexpressionsofSnailandMMP一9ofRH·35cellsatboththe
8、mRNAandproteinlevels(P
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