Regulation of cell migration by dynamic microtubules.

Regulation of cell migration by dynamic microtubules.
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动态微管对细胞迁移的调节。

DOI:
10.1016/j.semcdb.2011.09.017
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发表时间:
2011-12
影响因子:
7.3
通讯作者:
Straube, Anne
Straube, Anne
中科院分区:
生物学2区
文献类型:
--
作者:
Kaverina, Irina;Straube, Anne

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微管通过定位细胞器和活动以及支持细胞形状和力学来定义细胞的结构和内部组织。微管的主要功能之一是控制极化细胞运动。为了支持极化细胞的不对称性,微管本身必须是不对称的。微管分布和稳定性的不对称性受多种分子因子调节,其中大部分是微管相关蛋白,其局部控制微管成核和动力学。同时,微管的动态状态是微管调节细胞极性、调节细胞粘附和通过肌动蛋白细胞骨架控制力产生的调节机制的关键。在这里,我们提出,即使是微小的改变,微管动力学可以影响细胞迁移通过几个不同的微管依赖性途径。我们讨论了调节因素、由于功能性微管-肌动蛋白串扰而产生的潜在反馈机制以及对癌细胞运动性的影响。
Microtubules define the architecture and internal organisation of cells by positioning organelles and activities, as well as by supporting cell shape and mechanics. One of the major functions of microtubules is the control of polarized cell motility. In order to support the asymmetry of polarized cells, microtubules have to be organised asymmetrically themselves. Asymmetry in microtubule distribution and stability is regulated by multiple molecular factors, most of which are microtubule-associated proteins that locally control microtubule nucleation and dynamics. At the same time, the dynamic state of microtubules is key to the regulatory mechanisms by which microtubules regulate cell polarity, modulate cell adhesion and control force-production by the actin cytoskeleton. Here, we propose that even small alterations in microtubule dynamics can influence cell migration via several different microtubule-dependent pathways. We discuss regulatory factors, potential feedback mechanisms due to functional microtubule-actin crosstalk and implications for cancer cell motility.
Formin MDIA2独立于其肌动蛋白成核活性稳定微管。
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