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《miR-21對絕經(jīng)后骨質(zhì)疏松骨髓間充質(zhì)干細(xì)胞成骨能力影響的研究.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫。
1、國際醫(yī)藥衛(wèi)生導(dǎo)報2014年第20卷第18期IMHGN,September2014,Vo1.2ONo.18miR一21對絕經(jīng)后骨質(zhì)疏松骨髓問充質(zhì)干細(xì)胞成骨能力影響的研究廖壯文黃彥范子文昊波以【摘要】目的探討miR一21對絕經(jīng)后骨質(zhì)疏松骨髓間充質(zhì)于細(xì)胞(PMOP—hBMMSC)成骨能力影響。方法分離培養(yǎng)正常人(H—hBMMSCs)和絕經(jīng)后骨質(zhì)疏松患者(PMOP—hBMMSCs)的骨髓間充質(zhì)干細(xì)胞,并對兩組細(xì)胞的成骨能力進(jìn)行比較。轉(zhuǎn)染上調(diào)PMOP—hBMMSCs中miR一21表達(dá),觀察分析其對成骨能力的影響。RealtimeRT—PCR和WesternBlot比較miR一21在三組細(xì)
2、胞間的表達(dá)差異,同時檢測三組成骨標(biāo)志性基因Runx2和Ostefix的表達(dá)。結(jié)果PMOP—hBMMSCs組中的miR一21表達(dá)水平、ALP的活性以及鈣結(jié)節(jié)染色面積都高于PMOP組(P<0.05),與H—hBMMSCs正常對照組差異無統(tǒng)計學(xué)意義(P>0.05);RT—PCR和WesternBlot結(jié)果顯示成骨誘導(dǎo)7d后,轉(zhuǎn)染后高表達(dá)Runx2和OsterixmRNA和蛋白水平均高于PMOP組(P<0.05,P<0.O1),與H—hBMMSCs正常對照組差異無統(tǒng)計學(xué)意義(P>0.05)。結(jié)論轉(zhuǎn)染miR一21后的PMOP—hBMMSCs成骨能力增強?!娟P(guān)鍵詞】miR一21;絕經(jīng)后骨質(zhì)
3、疏松骨髓間充質(zhì)干細(xì)胞;轉(zhuǎn)染InfluenceofmiR-21onosteogeniccapabilityinhumanbonemalToWmesenchymalstemccHsinpatientswithpostmenopausalosteoporosisLiaoZhuangwen,HuangYah,FanZiwen,WuBoyi.DepartmentofOrthopedics,SecondHospitalAfgliatedtoGuangzhouMedicalUniversity,Guangzhou510260,China.【Abstract】ObjectiveToinvest
4、igatetheosteogeniccapabilityofmiR一21inhumanbonemarrowmesenchymalstemcellsinpatientswithp0stmenopausalosteoporosis(PMOP-hBMMSCs).MethodsThehumanbonema~owmesenchymalstemcellsfhBMMSCs1andPMOP—hBMMSCswereisolatedandcultured.Theosteogeniccapabilitiesofthesetwokindsofceilswerecompared.Afterover—ex
5、pressionmiR一21.theosteogenicpotentialwasanalysedinPMOP—hBMMSCs.TheexpressionofRunx2andOsterix.genesinH—hBMMSCSandPMOP—hBMMSCswererespectivelydetectedbyrealtimeRT—PCRandwesternblot.ResultsTheexpressionlevelofmiR一21washigher,ALPwasmoreactive,andthecalciumnodulesstainingareawaslargerinthePMOP—h
6、BMMSCsgroupthaninthePMOPgroup<0.05).Up—regulationwasfoundintheexpressionsofRunx2andOsterixmRNAandproteinofOver—expressionofmiR-21PM0P—hBMMSCscomparedtoPM0P(P<0.05,P<0.O1).ConclusionAfterthetransfectionofmiR一21,theosteogenicabilityofPMOP—hBMMSCscanbeenhanced.【Keywords】miR一21;PMOP—hBMMSCs;Tran
7、sfection絕經(jīng)后骨質(zhì)疏松是一種以骨形成能力受損,向成骨組織分化的,其對骨質(zhì)疏松和骨缺損疾病骨量減少為主要特征的慢性炎癥性骨疾病一類疾的治療有重要價值,但具體的機制仍不清楚]。病,誘導(dǎo)骨髓問充質(zhì)干細(xì)胞(humanbonemarrow因此本研究擬研究轉(zhuǎn)錄后調(diào)控分子miR一21對絕mesenchymalstemceUs,BMMSCs)定成骨分化,是經(jīng)后骨質(zhì)疏松骨髓間充質(zhì)干細(xì)胞成骨能力影響的修復(fù)骨缺損及治療炎癥性骨疾病的重要途徑【1]。近研究,探明其可能的分子機制,以祈為治療絕經(jīng)年來較多研究顯