Laboratory of Pediatric Oncology, Nijmegen Centre for Molecular Life Sciences, Radboud University Medical Centre, The Netherlands.
Eur J Cell Biol. 2012 Nov-Dec;91(11-12):834-46. doi: 10.1016/j.ejcb.2012.05.006. Epub 2012 Jun 21.
The ability of cells to respond to mechanical stimulation is crucial to a variety of biological processes, including cell migration, axonal outgrowth, perception of pain, cardiovascular responses and kidney physiology. The translation of mechanical cues into cellular responses, a process known as mechanotransduction, typically takes place in specialized multiprotein structures such as cilia, cell-cell or cell-matrix adhesions. Within these structures, mechanical forces such as shear stress and membrane stretch activate mechanosensitive proteins, which set off a series of events that lead to altered cell behavior. Members of the transient receptor potential (TRP) family of cation channels are emerging as important players in mechanotransductory pathways. Localized within mechanosensory structures, they are activated by mechanical stimuli and trigger fast as well as sustained cytoskeletal responses. In this review, we will provide an overview of how TRP channels affect cytoskeletal dynamics in various mechano-regulated processes.
细胞对机械刺激做出响应的能力对多种生物过程至关重要,包括细胞迁移、轴突生长、疼痛感知、心血管反应和肾脏生理学。这种将机械信号转化为细胞响应的过程,通常发生在特化的多蛋白结构中,如纤毛、细胞-细胞或细胞-基质黏附。在这些结构中,剪切力和膜拉伸等机械力会激活机械敏感性蛋白,引发一系列导致细胞行为改变的事件。瞬时受体电位 (TRP) 家族的阳离子通道成员作为机械转导途径中的重要参与者正在出现。它们定位于机械感受器结构内,可被机械刺激激活,并引发快速和持续的细胞骨架反应。在这篇综述中,我们将概述 TRP 通道如何影响各种机械调节过程中的细胞骨架动力学。