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CELL:皮肤成纤维细胞的稳态如何维持?

2018-12-08 海北 MedSci原创

成纤维细胞是组成人类器官的重要细胞和结构成分。尽管取得了一些进展,但至今为止,我们对于成纤维细胞用于维持体内稳态的关键行为尚不清楚。

成纤维细胞是组成人类器官的重要细胞和结构成分。尽管取得了一些进展,但至今为止,我们对于成纤维细胞用于维持体内稳态的关键行为尚不清楚。

最近,通过追踪活体小鼠中的相同皮肤成纤维细胞,研究人员发现,成纤维细胞的位置随时间变化比较稳定,此外,即使邻近的成纤维细胞丢失,其余成纤维细胞仍保持这种稳定性。相反,成纤维细胞膜在体内平衡期间是动态的,并且以Rac1依赖性方式延伸,以填充丢失的邻近成纤维细胞的空间。尽管成纤维细胞核组织中的间隙逐渐累积,但在老化期间仍保持位置稳定性,同时继续保持膜占有率。

这项工作将位置稳定性和细胞占据定义为整个小鼠生命周期中皮肤成纤维细胞体内平衡的关键原则,并确定在没有迁移的情况下的膜延伸作为实施这些原理的核心细胞机制。


原始出处:

Edward Marsh et al. Positional Stability and Membrane Occupancy Define Skin Fibroblast Homeostasis In Vivo. CELL 2018; doi: https://doi.org/10.1016/j.cell.2018.10.013


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    2019-05-29 changfy
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    2019-03-26 维他命
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    2018-12-08 医者仁心5538

    学习了

    0

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