Colloids Surf B Biointerfaces:氧化石墨烯的尺寸大小可会影响细胞的增殖和分化

2019-05-16 不详 网络

已知石墨烯衍生物适用于生物医学应用,尤其适用于基于干细胞的疗法。本案就中,我们使用微尺寸(MGO)和纳米尺寸的氧化石墨烯(NGO)探究了氧化石墨烯(GO)尺寸的大小对人脂肪来源的间充质干细胞(hADMSCs)分化影响。将横向尺寸分别为1-10μm和100-300nm的MGO和NGO通过滴铸涂覆在玻璃基板上。结果显示,与NGO对应物相比,在MGO包被的底物上的hADMSCs的细胞扩散和增殖速率增强,

已知石墨烯衍生物适用于生物医学应用,尤其适用于基于干细胞的疗法。本案就中,我们使用微尺寸(MGO)和纳米尺寸的氧化石墨烯(NGO)探究了氧化石墨烯(GO)尺寸的大小对人脂肪来源的间充质干细胞(hADMSCs)分化影响。

将横向尺寸分别为1-10μm和100-300nm的MGO和NGO通过滴铸涂覆在玻璃基板上。结果显示,与NGO对应物相比,在MGO包被的底物上的hADMSCs的细胞扩散和增殖速率增强,而与其密度无关。细胞分化方面,hADMSC对GO大小的依赖性变得更加突出。在相同培养条件下分化4周后,在MGO涂覆的基底上生长的hADMSC的成骨明显高于在NGO涂覆的基底上的成骨。根据成骨细胞的钙化水平,在分化21-28天后发现hADMSC的成骨分化差异最明显。

总之,这些发现表明石墨烯大小在控制hADMSCs成骨过程中的重要性,这可能为石墨烯基材料在干细胞研究和治疗中的应用提供新的见解。

原始出处:

Kang ES, Song I, et al., Size-dependent effects of graphene oxide on the osteogenesis of human adipose-derived mesenchymal stem cells. Colloids Surf B Biointerfaces. 2018 Sep 1;169:20-29. doi: 10.1016/j.colsurfb.2018.04.053. Epub 2018 Apr 27.

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    2020-03-26 sunylz
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    2020-01-13 智智灵药
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    2020-04-10 waiwai3030
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