Mol Med Rep:两种不同形式浓缩生长因子对成骨作用的比较研究

2019-06-13 不详 网络

延长生长因子的释放周期以匹配骨重建的周期是困难的。当使用浓缩生长因子(CGF)时,生长因子的释放过快。在本研究中,通过离心制备CGF样品。然后将CGF样品冻干并研磨成粉末,称为冷冻干燥的CGF。将冷冻干燥的CGF样品与壳聚糖-藻酸盐复合水凝胶混合,并将混合物冻干。结果是壳聚糖-藻酸盐复合物CGF膜,其被称为缓释CGF。该研究调查了壳聚糖-藻酸盐复合凝胶中的冻干CGF是否能够稳定地释放CGF以实现有

延长生长因子的释放周期以匹配骨重建的周期是困难的。当使用浓缩生长因子(CGF)时,生长因子的释放过快。

在本研究中,通过离心制备CGF样品。然后将CGF样品冻干并研磨成粉末,称为冷冻干燥的CGF。将冷冻干燥的CGF样品与壳聚糖-藻酸盐复合水凝胶混合,并将混合物冻干。结果是壳聚糖-藻酸盐复合物CGF膜,其被称为缓释CGF。该研究调查了壳聚糖-藻酸盐复合凝胶中的冻干CGF是否能够稳定地释放CGF以实现有效的成骨。

评估了由冷冻干燥的CGF和持续释放的CGF孵育的上清液诱导的MC3T3-E1细胞的增殖和成骨表达。生长因子,转化生长因子β1(TGF-β1),胰岛素样生长因子-1(IGF-1),血小板衍生生长因子-AB(PDGF-AB)和血管内皮生长因子(VEGF)的浓度在这两个实验组中,在不同时间通过ELISA试剂盒测定。冻干的CGF在早期阶段表现出比缓释CGF更好的成骨性能。在后期阶段,缓释CGF在促进成骨矿化方面具有优于冻干CGF的显着优势。

通过在体外表征两种不同形式的CGF的生物学特性,我们更好地了解了它们的临床效果。

原始出处:

Wang L, Wan M, et al., A comparative study of the effects of concentrated growth factors in two different forms on osteogenesis in vitro. Mol Med Rep. 2019 May 30. doi: 10.3892/mmr.2019.10313. 

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