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《一貫煎誘導骨髓間充質(zhì)干細胞分化為肝細胞樣細胞的實驗研究-論文.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、中國中西醫(yī)結(jié)合雜志2014年3月第34卷第3期CJITWM,March2014,Vo1.34,No.3一貫煎誘導骨髓問充質(zhì)干細胞分化為肝細胞樣細胞的實驗研究平鍵陳紅云。周揚成揚徐列明,摘要目的體外實驗觀察一貫煎誘導分離培養(yǎng)的大鼠骨髓間充質(zhì)干細胞(bonemarrowmesen—chymalstemcell,BMSC)定向分化肝細胞的作用。方法采用全骨髓貼壁法分離原代大鼠BMSC,第3代細胞采用流式細胞儀分析表面細胞因子、誘導分化為脂肪細胞鑒定其干細胞特征;采用肝細胞生長因子聯(lián)合成纖維細胞生長因子和一貫煎含藥血清2種誘導方案連續(xù)培養(yǎng)BMSC共21天
2、,PCR檢測細胞甲胎蛋白(僅一fetoprotein,AFP)、白蛋白(albumin,AIb)、肝細胞核因子4or(hepatocytenuclearfactor4e,HNF4僅)mRNA表達情況,細胞免疫熒光檢測細胞AFP和細胞角蛋白18(cytokeratin18,CK18)的表達,染色高碘酸一希夫反應法觀察細胞糖原形成,Westernblot法檢測細胞CK18、Wnt35、oL.catenin蛋白的表達情況。結(jié)果全骨髓貼壁法分離的BMSC高表達白細胞分化抗原(clusterofdifferentiation,CD)90、29、44,低表達
3、CD34和CD11b,成脂誘導2周后油紅O染色可見大量脂滴。一貫煎藥物血清和細胞因子誘導均可提高BMSC表達AIb、AFP、HNF4o~mRNA表達水平,促進CK18蛋白表達,誘導21天后可檢測到AFP和CK18的表達,可見細胞合成糖原顆粒,觀察到BMSC內(nèi)Wnt3or和B—catenin表達下調(diào)。結(jié)論一貫煎可誘導大鼠BMSC向肝細胞樣細胞分化,其機制與下調(diào)Wnt/13.catenin信號通路有關(guān)。關(guān)鍵詞一貫煎;骨髓間充質(zhì)干細胞;轉(zhuǎn)分化EfectofYiguanDecoctiononDiferentiationofBoneMarrowMesenc
4、hymaIStemCellsintoHepa—tocyte-likeCells:anExperimentaIResearchPINGJian‘’。,CHENHong—yun。,ZHOUYang。,CHENGYang?!?,andXULie—ming1InstituteofLiverDiseases,ShuguangHospitalAffiliatedtoShanghaiUniversityofTraditionalChineseMedicine,Shanghai(201203),China;2KeyLaboratory,Min-istrvofEdu
5、cationonLiverandKidneyDiseases。ShanghaiUniversityofTraditiona
6、ChineseMedicine。Shanghai(201203),China;3DepartmentofTraditionalChineseMedicine,ChanghaiHospital,SecondMilitaryMedicalUniversity,Shanghai(200433),China;4DepartmentofLiverCirrhosis,ShuguangHos-pitalAffiliatedtoShangh
7、aiUniversityofTraditionafChineseMedicine。Shanghai(201203),ChinaABSTRACTObiectiveToobservetheeffectofYiguanDecoction(YGD)ondi仟erentiationofbonemarrowmesenchymalstemcells(BMSCs)intohepatocyte—likecellsfnvitro.MethodsRatBM—SCswereisolatedusingwholebonemarrowadherentmethod.Thepro
8、pertiesofBMSCswereidentifiedbyanalyzingtheexpressionofsurfacecytokinesbyflowcytometry.Thethirdpassagecellsweredifferentia—tedintofatcellstoidentifytheirfeatures.BMSCswereincubatedwithhepatocytegrowthfactor(HGF)plusfibroblastgrowthfactor4(FGF4)orYGDcontainingserumYGDfor21days.
9、ThemRNAexpressionofor..fetoprotein(AFP),albumin(AIb),andhepatocytenu