aPKC is a key polarity determinant in coordinating the function of three distinct cell polarities during collective migration

aPKC is a key polarity determinant in coordinating the function of three distinct cell polarities during collective migration
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aPKC 是协调集体迁移过程中三种不同细胞极性功能的关键极性决定因素

DOI:
10.1242/dev.158444
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发表时间:
2018-05
期刊:
影响因子:
4.6
通讯作者:
Jiong Chen
Jiong Chen
中科院分区:
生物学2区
文献类型:
--
作者:
Heng Wang;Zhiqian Qiu;Zehao Xu;Samuel John Chen;Jun Luo;Xiaobo Wang;Jiong Chen

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顶-底极性是上皮的标志,并且当上皮细胞经历形态发生细胞运动时需要重塑。在这里,我们分析了果蝇卵巢的边缘细胞,以解决如何顶部-基底极性重塑,变成前后和内外以及顶部-基底极性,在集体迁移。我们发现,Crumbs(Crb)复杂的三个不同的,但相互关联的细胞极性的边界细胞的产生是必需的。具体而言,Crb复合物与Par复合物和内吞再循环机制一起,确保了两个不同的aPKC群体严格分布在内侧顶端连接处和外侧膜附近。有趣的是,分布在外侧膜附近的aPKC与Sif相互作用并促进Rac诱导的突起,而aPKC分布模式的改变改变突起形成的模式,导致所有三个极性的破坏。因此,我们证明,aPKC,空间控制的Crb复合物,是一个关键的极性分子协调三个不同的,但相互关联的细胞极性集体迁移过程中产生。
Apical-basal polarity is a hallmark of epithelia and needs to be remodeled when epithelial cells undergo morphogenetic cell movements. Here, we analyze border cells in the Drosophila ovary to address how apical-basal polarity is remodeled and turned into front-back and inside-outside as well as apical-basal polarities, during collective migration. We find that the Crumbs (Crb) complex is required for the generation of the three distinct but interconnected cell polarities of border cells. Specifically, the Crb complex, together with the Par complex and the endocytic recycling machinery, ensures the strict distribution of two distinct populations of aPKC at the inside apical junction and near the outside lateral membrane. Interestingly, aPKC distributed near the outside lateral membrane interacts with Sif and promotes Rac-induced protrusions, whereas alteration of the aPKC distribution pattern changes the pattern of protrusion formation, leading to disruption of all three polarities. Therefore, we demonstrate that aPKC, spatially controlled by the Crb complex, is a key polarity molecule coordinating the generation of three distinct but interconnected cell polarities during collective migration.
DOI: 10.1016/j.cub.2008.03.029
发表时间: 2008-04-08
期刊: CURRENT BIOLOGY
影响因子: 9.2
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DOI: 10.1038/nmeth.1220
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期刊: NATURE METHODS
影响因子: 48
作者:
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