Nat Commun:双向细胞-细胞周期基质相互作用直接导致干细胞的转化

2018-10-06 MedSci MedSci原创

可修饰的水凝胶揭示了细胞3D环境的物理特性如何驱动干细胞谱系分化。然而,在天然组织中,细胞不会被动地接收来自其壁龛的信号。相反,它们会主动探测和修改其细胞周围空间以满足其需要,然而当包封在水凝胶中时,细胞与其细胞周围环境的相互作用的动力学仍然相对未被探索。在这里,我们显示包裹在透明质酸基水凝胶中的人骨髓基质细胞(hMSC)通过细胞周期性地合成,分泌和排列蛋白质或通过降解水凝胶来改变其周围环境。hM

可修饰的水凝胶揭示了细胞3D环境的物理特性如何驱动干细胞谱系分化。然而,在天然组织中,细胞不会被动地接收来自其壁龛的信号。相反,它们会主动探测和修改其细胞周围空间以满足其需要,然而当包封在水凝胶中时,细胞与其细胞周围环境的相互作用的动力学仍然相对未被探索。

在这里,我们显示包裹在透明质酸基水凝胶中的人骨髓基质细胞(hMSC)通过细胞周期性地合成,分泌和排列蛋白质或通过降解水凝胶来改变其周围环境。hMSCs与该局部环境的相互作用在调节hMSCs转化中起作用,其中分泌的蛋白质性细胞周围基质与脂肪形成有关,并且与成骨作用一起降解。

综上所述,该研究结果表明,hMSCs参与其3D环境的属性与其自身分泌的细胞周围基质之间的双向相互作用,并且这种相互作用的组合驱动了干细胞转化。

原始出处:

Ferreira SA, Motwani MS, et al., Bi-directional cell-pericellular matrix interactions direct stem cell fate. Nat Commun. 2018 Oct 3;9(1):4049. doi: 10.1038/s41467-018-06183-4.

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    2018-11-17 liye789132251
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    2018-11-06 liuli5079
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    2018-10-08 ylz8405