Bezanilla Magdalena, Gladfelter Amy S, Kovar David R, Lee Wei-Lih
Department of Biology, University of Massachusetts Amherst, Amherst, MA 01003
Department of Biological Sciences, Dartmouth College, Hanover, NH 03755.
J Cell Biol. 2015 May 11;209(3):329-37. doi: 10.1083/jcb.201502062.
Many aspects of cytoskeletal assembly and dynamics can be recapitulated in vitro; yet, how the cytoskeleton integrates signals in vivo across cellular membranes is far less understood. Recent work has demonstrated that the membrane alone, or through membrane-associated proteins, can effect dynamic changes to the cytoskeleton, thereby impacting cell physiology. Having identified mechanistic links between membranes and the actin, microtubule, and septin cytoskeletons, these studies highlight the membrane's central role in coordinating these cytoskeletal systems to carry out essential processes, such as endocytosis, spindle positioning, and cellular compartmentalization.
细胞骨架组装和动力学的许多方面都可以在体外重现;然而,细胞骨架如何在体内跨细胞膜整合信号却鲜为人知。最近的研究表明,仅细胞膜本身,或通过与膜相关的蛋白质,就能对细胞骨架产生动态变化,从而影响细胞生理功能。这些研究确定了细胞膜与肌动蛋白、微管和隔膜细胞骨架之间的机制联系,突出了细胞膜在协调这些细胞骨架系统以执行诸如内吞作用、纺锤体定位和细胞区室化等基本过程中的核心作用。