Essential role of MARCKS in cortical actin dynamics during gastrulation movements.

Essential role of MARCKS in cortical actin dynamics during gastrulation movements.
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MARCKS 在原肠胚形成运动期间皮质肌动蛋白动力学中的重要作用。

DOI:
10.1083/jcb.200310027
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发表时间:
2004-01-19
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Kinoshita N
Kinoshita N
中科院分区:
其他
文献类型:
--
作者:
Iioka H;Ueno N;Kinoshita N

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肉豆蔻酰基化富丙氨酸C激酶底物(MARCKS)是一种在爪蟾胚胎发生过程中表达的肌动蛋白结合膜相关蛋白。我们分析了它在原肠形成过程中细胞骨架调节中的功能。在这里,我们发现其功能的阻断会损害形态发生运动,包括收敛扩展。在胚胎细胞中,MARCKS是控制细胞形态、运动、粘附、突出活动和皮质肌动蛋白形成所必需的。我们还证明了非规范的Wnt通路促进板足和丝状足样突起的形成,而MARCKS是这种活动所必需的。这些发现表明,MARCKS调节皮层肌动蛋白的形成,这是动态形态发生运动所必需的。
Myristoylated alanine-rich C kinase substrate (MARCKS) is an actin-binding, membrane-associated protein expressed during Xenopus embryogenesis. We analyzed its function in cytoskeletal regulation during gastrulation. Here, we show that blockade of its function impaired morphogenetic movements, including convergent extension. MARCKS was required for control of cell morphology, motility, adhesion, protrusive activity, and cortical actin formation in embryonic cells. We also demonstrate that the noncanonical Wnt pathway promotes the formation of lamellipodia- and filopodia-like protrusions and that MARCKS is necessary for this activity. These findings show that MARCKS regulates the cortical actin formation that is requisite for dynamic morphogenetic movements.
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发表时间: 2003-01-15
影响因子: 10.5
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