诱导骨髓基质细胞成血管平滑肌细胞的研究

Chinese journal of experimental surgery(2008)

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Abstract
目的 探讨体外诱导犬骨髓基质细胞(SMSC)为血管平滑肌细胞(VSMC)及其成血管的能力.方法 用含血小板源性生长因子(PDGF-BB)10ìg/L的内皮细胞培养液-2(EGM-2)诱导,无PDGF-BB的EGM-2培养液为对照,检测a-平滑肌肌动蛋白(a-SM actin)与肌钙结合蛋白(calponin)的表达并接种于聚羟基乙酸(PGA)培养4周后取材.结果 诱导组(n=5)细胞逐步呈平滑肌样转变,表达a-SM actin与calponin,流式细胞仪阳性率分别为(45.16±0.97)%、(37.54 4±1.15)%,可成血管样结构,对照组(n=5)变化不明显,阳性率(7.92±1.04)%、(6.37±0.83)%,成血管样结构能力差.结论 体外可诱导犬BMSC为VSMC并有成血管样结构的能力.
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Key words
Bone marrow stromal cells,Vascular smooth muscle cells,Tissue engineering
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