Integrating mechanical signals into cellular identity.

Integrating mechanical signals into cellular identity.
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DOI:
10.1016/j.tcb.2022.02.006
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发表时间:
2022-08
影响因子:
19
通讯作者:
Guo, Shangqin
Guo, Shangqin
中科院分区:
生物学1区
文献类型:
--
作者:
Carley, Emma;King, Megan C.;Guo, Shangqin

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多细胞生物体中的大量细胞类型由它们的定型大小和/或形态定义,并且对于体内细胞,由它们的解剖位置定义。从历史上看,这种身份-结构-功能相关性被概念化为由决定细胞如何出现和行为的不同基因表达程序引起的。然而,越来越多的研究表明,细胞的机械状态也是其身份的一个重要决定因素,无论是在谱系定型细胞和多能干细胞中。确定机械输入影响复杂细胞程序的机制仍然是一个正在进行的研究领域。在这里,我们讨论了细胞骨架如何积极参与指导细胞核和基因组的反应,以整合机械和生化输入,主要集中在肌动球蛋白LINC(核骨架和细胞骨架的接头)复杂轴的作用。
The large array of cell types in a multicellular organism are defined by their stereotypic size and/or morphology, and, for cells in vivo, their anatomic positions. Historically, this identity-structure-function correlation was conceptualized as arising from distinct gene expression programs that dictate how cells appear and behave. However, a growing number of studies suggest that a cell’s mechanical state is also an important determinant of its identity, both in lineage-committed cells and pluripotent stem cells. Defining the mechanism by which mechanical inputs influence complex cellular programs remains an area of ongoing investigation. Here, we discuss how the cytoskeleton actively participates in instructing the response of the nucleus and genome to integrate mechanical and biochemical inputs, with a primary focus on the role of the actomyosin-LINC (Linker of Nucleoskeleton and Cytoskeleton) complex axis.
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