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人骨髓间质干细胞体外培养及诱导成骨的鉴定 被引量:2

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摘要 目的优化人骨髓间质干细胞(human bone marrow mesenchym alstem cells,hBMSCs)体外分离培养方法,对hBMSCs体外培养及诱导成骨能力进行鉴定。方法密度梯度离心法分离hBMSCs,流式细胞分析法(FACS)对细胞表面抗原、细胞活力、细胞周期进行检测。以含地塞米松(1×10-7mmol/L)、β-甘油磷酸钠(10 mmol/L)、抗坏血酸(35.22 mg/L)的DMEM培养液对hBMSCs进行诱导分化,相差显微镜和透视电镜观察细胞形态,Gomori钙钴法进行碱性磷酸酶染色(ALP),免疫组化检测Ι型胶原,茜素红法进行钙结节染色。结果hBMSCs可在体外分离扩增,表达CD44、CD105和CD106,不表达CD34和CD45,细胞活力为92.3%,G0-G1细胞占94.2%。经成骨培养液诱导后细胞形态由长梭形向多边形转变,ALP染色、Ι型胶原染色及钙结节染色均为强阳性。结论hBMSCs可在体外长期、稳定培养,具有向成骨细胞分化的潜能。
出处 《广东医学》 CAS CSCD 北大核心 2007年第2期199-201,共3页 Guangdong Medical Journal
基金 广东省广州市科技计划项目(编号:2006Z3-E5211)
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参考文献10

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