Cell motility through plasma membrane blebbing.

Cell motility through plasma membrane blebbing.
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DOI:
10.1083/jcb.200802081
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发表时间:
2008-06-16
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Grosse R
Grosse R
中科院分区:
其他
文献类型:
--
作者:
Fackler OT;Grosse R

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质膜泡是一种由胞浆素调控的细胞突起,与细胞凋亡、胞质分裂和细胞运动有关。影响Rho-鸟苷三磷酸酶活性和随后的肌动球蛋白动力学似乎构成了水泡形成的核心成分。在本文中,我们讨论了最近的证据支持的核心作用的非凋亡膜起泡细胞迁移和癌细胞的侵袭,以及在我们的理解的基础上的分子机制的进展。基于这些研究,我们提出,在生理背景下,水泡相关的细胞运动反映了细胞的反应,减少基质粘附。存在多种控制肌动蛋白介导的水泡退缩的分子机制,强调了水泡作为功能性突出的重要性。
Plasma membrane blebs are dynamic cytoskeleton-regulated cell protrusions that have been implicated in apoptosis, cytokinesis, and cell movement. Influencing Rho–guanosine triphosphatase activities and subsequent actomyosin dynamics appears to constitute a core component for bleb formation. In this paper, we discuss recent evidence in support of a central role of nonapoptotic membrane blebbing for cell migration and cancer cell invasion as well as advances in our understanding of the underlying molecular mechanisms. Based on these studies, we propose that in a physiological context, bleb-associated cell motility reflects a cell's response to reduced substratum adhesion. The importance of blebbing as a functional protrusion is underscored by the existence of multiple molecular mechanisms that govern actin-mediated bleb retraction.
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影响因子: 3.4
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