J Biomater Sci Polym Ed:羟基磷灰石与成骨培养基比较PHBV纳米纤维支架间充质干细胞的成骨分化

2018-12-23 MedSci MedSci原创

良好的生物相容性和骨传导性可增强间充质干细胞(MSC)的成骨分化,羟基磷灰石(HA)是骨组织工程的常用材料。然而,尚不清楚HA是否可刺激MSCs的成骨分化与更常用的成骨诱导培养基(OIM)的成骨分化的类似潜力。为此,我们使用PHBV电纺纳米纤维支架直接比较HA与OIM的成骨能力。通过观察细胞形态,成骨标志物的染色,成骨相关基因的定量测量以及microRNA分析,我们发现,HA与OIM一样能够将骨髓

良好的生物相容性和骨传导性可增强间充质干细胞(MSC)的成骨分化,羟基磷灰石(HA)是骨组织工程的常用材料。然而,尚不清楚HA是否可刺激MSCs的成骨分化与更常用的成骨诱导培养基(OIM)的成骨分化的类似潜力。为此,我们使用PHBV电纺纳米纤维支架直接比较HA与OIM的成骨能力。

通过观察细胞形态,成骨标志物的染色,成骨相关基因的定量测量以及microRNA分析,我们发现,HA与OIM一样能够将骨髓间充质干细胞分化为成骨谱系;虽然速度明显较慢,但许多microRNA通过多种通路参与MSCs的成骨分化,涉及细胞增殖和干细胞的抑制,软骨形成和脂肪生成,以及骨生成的积极促进。

总之,我们首次证明PHBV电纺纳米纤维支架与HA结合具有与OIM相似的成骨诱导潜力,因此可用作替代体内模拟骨组织工程应用的OIM的可行替代品。

原始出处:

Lü LX, Zhang XF, et al., Comparing Hydroxyapatite with Osteogenic Medium for the Osteogenic Differentiation of Mesenchymal Stem Cells on PHBV Nanofibrous Scaffolds. J Biomater Sci Polym Ed. 2018 Dec 17:1-21. doi: 10.1080/09205063.2018.1558485.

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    2019-03-10 klivis
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    2019-01-08 sunylz
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    2019-04-22 HinsMax
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    2018-12-25 zhaojie88
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