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Colloids Surf B Biointerfaces:氧化石墨烯的尺寸大小影响干细胞的成骨行为

2018-05-19 MedSci MedSci原创

已知石墨烯衍生物适用于生物医学应用,特别是对于基于干细胞的疗法。本研究中,研究人员报道了使用微米级(MGO)和纳米级氧化石墨烯(NGO)片材的氧化石墨烯(GO)对人脂肪来源的间充质干细胞(hADMSCs)分化的尺寸效应。 将具有1-10μm和100-300nm横向尺寸的MGO和NGO片分别通过滴铸涂覆在玻璃基底上。结果发现,与NGO对应物相比,MGO包被的基底上hADMSCs的扩散和增殖速率

已知石墨烯衍生物适用于生物医学应用,特别是对于基于干细胞的疗法。本研究中,研究人员报道了使用微米级(MGO)和纳米级氧化石墨烯(NGO)片材的氧化石墨烯(GO)对人脂肪来源的间充质干细胞(hADMSCs)分化的尺寸效应。

将具有1-10μm和100-300nm横向尺寸的MGO和NGO片分别通过滴铸涂覆在玻璃基底上。结果发现,与NGO对应物相比,MGO包被的基底上hADMSCs的扩散和增殖速率较高,而不论其密度如何。在细胞分化方面,hADMSCs对GO尺寸的依赖性变得更加突出。在相同培养条件下分化4周后,MGO包被的基质上生长的hADMSCs的骨生成明显高于NGO包被组。根据成骨细胞的钙化水平,在分化21-28天后,发现两组hADMSCs成骨分化的差异最为显著。

综上所述,该研究结果表明,石墨烯的尺寸在控制hADMSCs成骨方面十分重要,或为利用石墨烯基材料进行干细胞研究和治疗提供新的见解。

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 Apr 27;169:20-29. doi: 10.1016/j.colsurfb.2018.04.053. 

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    2019-04-23 sunylz
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    2019-01-24 waiwai3030
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    2018-08-12 shanyongle
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    2018-05-21 zhaojie88
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    2018-05-19 13718711b3m

    学习了.获益匪浅.感谢分享

    0

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