Antagonistic PCP Signaling Pathways in the developing Drosophila eye.

Antagonistic PCP Signaling Pathways in the developing Drosophila eye.
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DOI:
10.1038/s41598-018-24053-3
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发表时间:
2018-04-10
期刊:
影响因子:
4.6
通讯作者:
Tomlinson A
Tomlinson A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Katanaev VL;Egger-Adam D;Tomlinson A

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在平面细胞极性(PCP)中,细胞在其所在的上皮平面内协调地排列其细胞骨架。在大多数昆虫上皮中,这通过外胚层细胞分泌的毛发的协调突起来指示。这种形式的PCP已在果蝇中进行了有效的研究,但已证明难以对各种蛋白质所起的作用进行综合描述。在昆虫眼中,PCP并不表现为单个细胞的极化,而是表现为小眼细胞的不对称排列。这种不同形式的PCP允许进行不同的研究,并且使用该系统,我们已经检测到两种拮抗信号通路的作用。即使是拮抗的,这两种途径也会协同合作,以确保实现细胞的正确排列。拮抗信号通路的合作使用发生在趋化细胞的极化,我们讨论了一个类似的分子原理可能是PCP的基础。
In Planar cell polarity (PCP), cells coordinately polarize their cytoskeletons within the plane of the epithelium in which they lie. In most insect epithelia this is indicated by the coordinated projections of the hairs secreted by the ectodermal cells. PCP of this form has been effectively studied in Drosophila, but it has proven difficult to achieve an integrated description of the roles played by the various proteins. In the insect eye, PCP is not evident as the polarization of individual cells, but as the asymmetric arrangements of the cells of the ommatidia. This different form of PCP allows different studies to be performed, and using this system we have detected the action of two antagonistic signaling pathways. Even though antagonistic, the two pathways synergize and cooperate to ensure that the correct arrangement of the cells is achieved. The cooperative use of antagonistic signaling pathways occurs in the polarization of chemotacting cells, and we discuss the possibility that a similar molecular principle may underlie PCP.
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