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Neurosecretory control of aging in Caenorhabditis elegans

机译:秀丽隐杆线虫衰老的神经分泌控制

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摘要

In the nematode Caenorhabdiyis elegans, an insulin receptor signaling pathway regulates adult life span and developmental arrest at the dauer larval stage. Here we show that the unc-64 and unc-31 genes also function in this pathway. These two genes are involved in mediating Ca~2+- regulated secretion. Mutations in unc-64 and unc-31 increase adult life span and cause constitutive dauer formation. Both phenotypes are suppressed by mutations in daf-16, which also suppresses other mutations in this pathway. We present evidence that the site of action of unc-64 is neuronal, suggest- ing that a neurosecretory signal regulates life span and dauer formation.
机译:在线虫Caenorhabdiyis elegans中,胰岛素受体信号传导途径调节了成年幼虫的寿命,并在道尔幼虫阶段发育停滞。在这里,我们显示unc-64和unc-31基因也在此途径中起作用。这两个基因参与介导Ca〜2 +调节的分泌。 unc-64和unc-31中的突变会延长成年寿命,并导致本构道尔形成。两种表型都被daf-16中的突变所抑制,这也抑制了该途径中的其他突变。我们提供的证据表明,unc-64的作用部位是神经元的,这表明神经分泌信号调节寿命和dauer形成。

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