上皮细胞中的中心粒定位及其与平面细胞极性的密切关系。

Centriole positioning in epithelial cells and its intimate relationship with planar cell polarity.

作者信息

Carvajal-Gonzalez Jose Maria, Mulero-Navarro Sonia, Mlodzik Marek

机构信息

Departamento de Bioquímica, Biología Molecular y Genética, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.

Department of Developmental and Regenerative Biology and Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.

出版信息

Bioessays. 2016 Dec;38(12):1234-1245. doi: 10.1002/bies.201600154. Epub 2016 Oct 24.

Abstract

Planar cell polarity (PCP)-signaling and associated tissue polarization are evolutionarily conserved. A well documented feature of PCP-signaling in vertebrates is its link to centriole/cilia positioning, although the relationship of PCP and ciliogenesis is still debated. A recent report in Drosophila established that Frizzled (Fz)-PCP core signaling has an instructive input to polarized centriole positioning in non-ciliated Drosophila wing epithelia as a PCP read-out. Here, we review the impact of this observation in the context of recent descriptions of the relationship(s) of core Fz-PCP signaling and cilia/centriole positioning in epithelial and non-epithelial cells. All existing data are consistent with a model where Fz-PCP signaling functions upstream of centriole/cilia positioning, independent of ciliogenesis. The combined data sets indicate that the Fz-Dsh PCP complex is instructive for centriole/ciliary positioning via an actin-based mechanism. Thereby, centriole/cilia/centrosome positioning can be considered an evolutionarily conserved readout and common downstream effect of PCP-signaling from flies to mammals.

摘要

平面细胞极性(PCP)信号传导及相关的组织极化在进化上是保守的。在脊椎动物中,PCP信号传导的一个充分记录的特征是它与中心粒/纤毛定位的联系,尽管PCP与纤毛发生之间的关系仍存在争议。果蝇的一项最新报告表明,作为一种PCP读数,卷曲蛋白(Fz)-PCP核心信号传导对非纤毛果蝇翅上皮细胞中极化的中心粒定位具有指导性作用。在此,我们结合近期关于核心Fz-PCP信号传导与上皮细胞和非上皮细胞中纤毛/中心粒定位关系的描述,对这一观察结果的影响进行综述。所有现有数据均与一个模型一致,即Fz-PCP信号传导在中心粒/纤毛定位的上游发挥作用,且与纤毛发生无关。综合数据集表明,Fz-Dsh PCP复合体通过一种基于肌动蛋白的机制对中心粒/纤毛定位具有指导作用。因此,中心粒/纤毛/中心体定位可被视为从果蝇到哺乳动物PCP信号传导在进化上保守的读数和共同的下游效应。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索