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《地黃多糖對(duì)大鼠骨髓間充質(zhì)干細(xì)胞向神經(jīng)樣細(xì)胞誘導(dǎo)分化作用的研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在工程資料-天天文庫(kù)。
1、第18卷第6期中國(guó)實(shí)驗(yàn)方劑學(xué)雜志Vol.18,No.62012年3月ChineseJournalofExperimentalTraditionalMedicalFormulaeMar.,2012地黃多糖對(duì)大鼠骨髓間充質(zhì)干細(xì)胞向神經(jīng)樣細(xì)胞誘導(dǎo)分化作用的研究12221*杜紅陽(yáng),付海燕,包翠芬,劉宇卓,秦書(shū)儉(1.遼寧中醫(yī)藥大學(xué),沈陽(yáng)110032;2.遼寧醫(yī)學(xué)院,遼寧錦州121000)[摘要]目的:探討地黃多糖體外對(duì)大鼠骨髓間充質(zhì)干細(xì)胞(BMSCs)分化為神經(jīng)樣細(xì)胞的誘導(dǎo)作用。方法:以大鼠BMSCs為研究對(duì)象,采用流式細(xì)胞儀檢測(cè)BMSCs表面標(biāo)志,MTT法檢測(cè)
2、細(xì)胞生長(zhǎng)曲線,當(dāng)?shù)?代細(xì)胞爬片達(dá)到80%以上匯合-1-1時(shí),分為對(duì)照組、化學(xué)方法誘導(dǎo)組(5mmol·L,β-mercaptoethanol)、腦源性神經(jīng)生長(zhǎng)因子(10μg·L,BDNF)組和地黃多糖組-1(200mg·L)進(jìn)行誘導(dǎo),6h后應(yīng)用免疫細(xì)胞化學(xué)染色法檢測(cè)各實(shí)驗(yàn)組神經(jīng)元巢蛋白(nestin)、神經(jīng)元特異性烯醇化酶(NSE)、膠質(zhì)纖維酸性蛋白(GFAP)的表達(dá),RT-PCR檢測(cè)nestin,NSE,βⅢ-微管蛋白(βⅢ-tubulin)和GFAPmRNA的表達(dá)情況。結(jié)果:經(jīng)分離鑒定培養(yǎng)5代以內(nèi)大鼠BMSCs增殖旺盛、具有較好的細(xì)胞活力;免疫細(xì)胞化學(xué)
3、染色和RT-PCR檢測(cè)結(jié)果顯示,對(duì)照組不表達(dá)神經(jīng)細(xì)胞標(biāo)志物,各誘導(dǎo)組誘導(dǎo)后有特異性神經(jīng)細(xì)胞標(biāo)志物表達(dá)。其中地黃多糖組Nestin,NSE陽(yáng)性細(xì)胞率分別為(56.74±1.36)%,(73.37±1.27)%,高于化學(xué)誘導(dǎo)組(28.21±2.43)%,(2.31±2.72)%和神經(jīng)生長(zhǎng)因子組(31.3±1.61)%,(28.87±1.65)%,(P<0.05);GFAP陽(yáng)性細(xì)胞率(20.17±1.27)%低于化學(xué)誘導(dǎo)組和神經(jīng)生長(zhǎng)因子組,差異具有統(tǒng)計(jì)學(xué)意義(P<0.05);化學(xué)誘導(dǎo)組Nestin,NSE和GFAP陽(yáng)性細(xì)胞率與生長(zhǎng)因子組比較,差異無(wú)統(tǒng)計(jì)學(xué)意義。
4、結(jié)論:地黃多糖具有誘導(dǎo)BMSCs向神經(jīng)樣細(xì)胞分化的作用,主要向神經(jīng)元樣細(xì)胞方向誘導(dǎo)。[關(guān)鍵詞]地黃多糖;骨髓間充質(zhì)干細(xì)胞;神經(jīng)樣細(xì)胞;誘導(dǎo)[中圖分類號(hào)]R285.5[文獻(xiàn)標(biāo)識(shí)碼]A[文章編號(hào)]1005-9903(2012)06-0133-05[DOI]CNKI:11-3495/R.20120113.1029.002[網(wǎng)絡(luò)出版時(shí)間]2012-01-1310:29[網(wǎng)絡(luò)出版地址]http://www.cnki.net/kcms/detail/11.3495.R.20120113.1029.002.htmlStudyonDifferentiationofRat
5、BoneMarrowMesenchymalStemCellsintoNeuron-likeCellsInducedbyRehmanniaglutinosaPolysaccharideinvitro12221*DUHong-yang,F(xiàn)UHai-yan,BAOCui-fen,LIUYu-zhuo,QINShu-jian(1.LiaoningUniversityofTraditionalChineseMedicine,Shenyang110032,China;2.LiaoningMedicalUniversity,Jinzhou121001,China)[A
6、bstract]Objective:ToinvestigatetheeffectofRehmanniaglutinosapolysaccharide(RGP)oninducingdifferentiationofratsbonemarrowmesenchymalstemcells(BMSCs)intoneuron-likecellsinvitro.Method:AftercharacterizedcellsurfacemarkersbyflowcytometryanalysisandassessedcellgrowthcurvebyMTT,ratBMSC
7、swereexperimentedastheobject.Whenthethirdpassagecellsgrewtofusionofmorethan80%,thecellsweredividedinto4groupssuchasthecontrolgroup,theβ-mercaptoethanol(BME)inductiongroup,thebrainderivedneurotrophicfactor(BDNF)inductiongroupandthe(RGP)inductiongroup.ImmunocytochemicalstainandRT-P
8、CRmethodwereusedtodetectseveralneuralspe