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Molecular and ultrastructural characterization of endothelial cells differentiated from human bone marrow mesenchymal stem cells.

机译:从人骨髓间充质干细胞分化出来的内皮细胞的分子和超微结构表征。

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In this study characterization of endothelial cells differentiated from human bone marrow mesenchymal stem cells (hBMCs) was investigated in relation to their capillary network formation potential. Differentiation was performed in presence of vascular endothelial growth factor (VEGF) and insulin like growth factor-1 (IGF-1). A panel of cellular and molecular markers was used for characterization of the endothelial cells. The cells were strongly positive for von Willebrand factor (vWF) and vascular endothelial growth factor receptor 2 (VEGFR2) when measured at protein and mRNA levels. Development of endothelial cells was found to be associated with formation of typical organelles such as Weibel Palade (WP) bodies, Cavealae and pinocytic vesicles. Early vessel growth was also evidenced by showing specific junctions between the cells. The migratory and angiogenic properties of the cells were confirmed by showing capillary network formation in vitro. These results indicate that the capacity of endothelial cells differentiated from hBMSCs in formation of vascular system is consistent with molecular and structural development.
机译:在这项研究中,研究了从人骨髓间充质干细胞(hBMCs)分化出来的内皮细胞的表征及其毛细血管网络形成潜力。在存在血管内皮生长因子(VEGF)和胰岛素样生长因子-1(IGF-1)的情况下进行分化。使用一组细胞和分子标记物来表征内皮细胞。在蛋白质和mRNA水平进行测量时,细胞对血管性假血友病因子(vWF)和血管内皮生长因子受体2(VEGFR2)呈强阳性。发现内皮细胞的发育与典型的细胞器的形成有关,例如Weibel Palade(WP)体,海绵体和小球囊泡。还通过显示细胞之间的特定连接来证明早期血管生长。细胞的迁移和血管生成特性通过显示体外毛细血管网形成得到证实。这些结果表明,从hBMSCs分化出来的内皮细胞在血管系统形成中的能力与分子和结构的发展是一致的。

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