Regulation of cell shape, wing hair initiation and the actin cytoskeleton by Trc/Fry and Wts/Mats complexes.

Regulation of cell shape, wing hair initiation and the actin cytoskeleton by Trc/Fry and Wts/Mats complexes.
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DOI:
10.1016/j.ydbio.2010.02.029
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发表时间:
2010-05-15
影响因子:
2.7
通讯作者:
Adler PN
Adler PN
中科院分区:
生物学3区
文献类型:
--
作者:
Fang X;Adler PN

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果蝇中的两个NDR激酶家族基因是tricornered(trc)和wts(wts)。以往对trc的研究主要集中在其在表皮细胞延伸的形态发生、树突分枝和平铺中的作用。对wts的研究主要集中在其作为肿瘤抑制因子的作用,在控制感光细胞类型和维持树突。在这里,我们研究和比较这些基因在翅细胞的功能之前,他们的终端分化。这些基因的突变导致细胞形状、F-肌动蛋白的细胞水平、分化的时间以及多翅毛和DE-钙粘蛋白的表达的变化。我们发现,WTS对所有这些过程的影响似乎是由其调节约克转录因子介导的。我们还提供了证据表明,trc调节DE-钙粘蛋白和mwh的表达。此外,我们发现,对细胞形状和分化时间的影响似乎与细胞相对于其邻居的相对生长速率的变化无关。
The two NDR kinase family genes in Drosophila are tricornered (trc) and warts (wts). Previous studies on trc have focused on its role in the morphogenesis of extensions of epidermal cells and in dendrite branching and tiling. Studies on wts have focused on its roles as a tumor suppressor, in controlling photoreceptor type and in the maintenance of dendrites. Here we examine and compare the function of these genes in wing cells prior to their terminal differentiation. Mutations in these genes lead to changes in cell shape, cellular levels of F-actin, the timing of differentiation, and the expression of multiple wing hairs and DE-Cadherin. We showed that the effects of wts on all of these processes appear to be mediated by its regulation of the Yorkie transcription factor. We also provide evidence that trc regulates the expression of DE-cadherin and mwh. In addition, we showed that the effects on cell shape and the timing of differentiation appear to not be linked to changes in relative growth rate of cells compared to their neighbors.
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