J Biomed Nanotechnol:利用基于植物病毒的纳米棒调节人骨髓干细胞的分化

2019-01-09 MedSci MedSci原创

烟草花叶病毒(TMV)是一种典型的纳米棒状生物颗粒,已用于构建用于不同生物医学应用的各种自组装纳米材料,包括药物递送、体内成像、肿瘤免疫疗法和组织工程。在这项工作中,研究人员探究了TMV及其突变体TMV-RGD1纳米粒子在人骨髓干细胞(hBMSCs)分化中的作用,这是骨再生的一个重要过程。结果发现,在TMV-RGD1纳米棒包被的底物上培养的细胞显示出骨特异性标志物骨钙蛋白(OCN)和骨形态发生蛋白

烟草花叶病毒(TMV)是一种典型的纳米棒状生物颗粒,已用于构建用于不同生物医学应用的各种自组装纳米材料,包括药物递送、体内成像、肿瘤免疫疗法和组织工程。

在这项工作中,研究人员探究了TMV及其突变体TMV-RGD1纳米粒子在人骨髓干细胞(hBMSCs)分化中的作用,这是骨再生的一个重要过程。结果发现,在TMV-RGD1纳米棒包被的底物上培养的细胞显示出骨特异性标志物骨钙蛋白(OCN)和骨形态发生蛋白2(BMP2)的基因和蛋白质表达水平的明显更高。对碱性磷酸酶(ALP)活性和钙沉积的研究进一步证实,TMV-RGD1底物可促进骨生成并诱导hBMSCs的矿化。另一方面,脂肪生成在TMV和TMV-RGD1包被的底物上下调。

总之,本研究首次证明了TMV-RGD1在促进hBMSCs成骨分化方面的潜力,这可能导致未来在临床骨科工程中的应用。

原始出处:

Liu T, Zhao X, et al., Using Plant Virus Based Nanorods to Modulate the Differentiation of Human Bone Marrow Stem Cells. J Biomed Nanotechnol. 2019 Feb 1;15(2):363-372. doi: 10.1166/jbn.2019.2691.

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    2019-03-28 xuyong535
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    2019-04-09 sunylz
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    2019-11-03 shock_melon
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