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Int J Nanomed:氧化石墨烯对成骨和血管生成的免疫调节特性

2018-10-13 MedSci MedSci原创

生物材料的骨免疫调节特性在骨再生的结果中起重要作用。氧化石墨烯(GO)由于其独特的性质而在许多研究领域中得到广泛应用。然而,GO作为骨组织工程生物材料的免疫调节特性仍不清楚。在本研究中,我们评估了受GO影响的RAW264.7细胞的炎症反应。然后通过用GO/RAW 264.7条件培养基刺激,获得BMSCs的成骨分化和人脐静脉内皮细胞(HUVECs)的血管生成分化。我们还进一步研究了GO的骨和血管免疫

生物材料的骨免疫调节特性在骨再生的结果中起重要作用。氧化石墨烯(GO)由于其独特的性质而在许多研究领域中得到广泛应用。然而,GO作为骨组织工程生物材料的免疫调节特性仍不清楚。

在本研究中,我们评估了受GO影响的RAW264.7细胞的炎症反应。然后通过用GO/RAW 264.7条件培养基刺激,获得BMSCs的成骨分化和人脐静脉内皮细胞(HUVECs)的血管生成分化。我们还进一步研究了GO的骨和血管免疫调节作用的可能机制。

结果表明,GO通过核因子-κB通路刺激制瘤素M,肿瘤坏死因子α和其他因子的分泌。 GO/RAW264.7条件培养基促进BMSCs的成骨分化,刺激血管相关受体HUVECs的上调,促进其体外管形成。

总之,该研究结果表明,GO作为一种生物材料,可以诱导有益的骨-免疫调节环境的形成,是一种很有前景的骨组织工程生物材料。

原始出处:

Deting Xue, Erman Chen, et al., Immunomodulatory properties of graphene oxide for osteogenesis and angiogenesis. Int J Nanomedicine. 2018; 13: 5799–5810.

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