Sci Rep:Nanomatrix上共培养的人间充质干细胞和人脐静脉内皮细胞的血管生成和成骨协同作用

2018-11-01 MedSci MedSci原创

迄今为止,骨组织再生策略缺乏有效提供有利于骨生长的成骨和血管生成环境的方法。在目前的研究中,我们评估了人类间充质干细胞(hMSCs)和表达绿色荧光蛋白的人脐静脉内皮细胞(GFP-HUVECs)共培养时与细胞功能化的自组装肽两亲物纳米基质的成骨和血管生成反应。 结果碱性磷酸酶活性、von Kossa染色、茜素红定量和成骨基因表达的分析表明,PA-RGDS纳米基质共培养在促进hMSCs成骨的之间

迄今为止,骨组织再生策略缺乏有效提供有利于骨生长的成骨和血管生成环境的方法。在目前的研究中,我们评估了人类间充质干细胞(hMSCs)和表达绿色荧光蛋白的人脐静脉内皮细胞(GFP-HUVECs)共培养时与细胞功能化的自组装肽两亲物纳米基质的成骨和血管生成反应。

结果碱性磷酸酶活性、von Kossa染色、茜素红定量和成骨基因表达的分析表明,PA-RGDS纳米基质共培养在促进hMSCs成骨的之间存在显著的协同效应。此外,在PA-RGDS上共培养导致HUVEC网络形成增强和血管内皮生长因子基因和蛋白质的表达上调。

虽然PA-RGDS和共培养hMSCs与HUVECs之前都报道过分别增强hMSC成骨,但本研究首次证明了通过将共培养与PA-RGDS纳米基质整合,促进HUVEC血管生成和hMSC成骨。我们认为,使用hMSC/HUVEC共培养物和PA-RGDS底物的组合是促进骨生成和血管生成的有效方法,其具有作为骨组织再生的有效工程平台的巨大潜力。

原始出处:

Jun Chen, Lily Deng, et al., Angiogenic and Osteogenic Synergy of Human Mesenchymal Stem Cells and Human Umbilical Vein Endothelial Cells Cocultured on a Nanomatrix. Sci Rep. 2018; 8: 15749.

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    2019-06-29 fusion
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    2018-11-24 freve
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    2018-11-03 zhaojie88