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Ack promotes tissue growth via phosphorylation and suppression of the Hippo pathway component Expanded

机译:Ack通过磷酸化和抑制Hippo途径的成分促进组织生长

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Non-receptor tyrosine kinase activated cdc42 kinase was reported to participate in several types of cancers in mammals. It is also believed to have an anti-apoptotic function in Drosophila . Here, we report the identification of Drosophila activated cdc42 kinase as a growth promoter and a novel Hippo signaling pathway regulator. We find that activated cdc42 kinase promotes tissue growth through modulating Yorkie activity. Furthermore, we demonstrate that activated cdc42 kinase interacts with Expanded and induces tyrosine phosphorylation of Expanded on multiple sites. We propose a model that activated cdc42 kinase negatively regulates Expanded by changing its phosphorylation status to promote tissue growth. Moreover, we show that ack genetically interacts with merlin and expanded . Thus, we identify Drosophila activated cdc42 kinase as a Hippo pathway regulator.
机译:据报道,非受体酪氨酸激酶激活的cdc42激酶参与了哺乳动物的几种癌症。还认为它在果蝇中具有抗凋亡功能。在这里,我们报告果蝇激活的cdc42激酶作为生长促进剂和新型河马信号通路调节剂的鉴定。我们发现激活的cdc42激酶通过调节Yorkie活性促进组织生长。此外,我们证明激活的cdc42激酶与Expanded相互作用并在多个位点诱导Expanded的酪氨酸磷酸化。我们提出了一个模型,该模型可以通过改变其磷酸化状态来促进组织生长,从而激活cdc42激酶来负调控扩张细胞。此外,我们证明了ack与merlin发生了遗传相互作用并发生了扩展。因此,我们确定果蝇激活的cdc42激酶为河马途径调节剂。

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