The cunning little vixen: Foxo and the cycle of life and death.

The cunning little vixen: Foxo and the cycle of life and death.
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DOI:
10.1038/ni.1784
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发表时间:
2009-10
期刊:
影响因子:
30.5
通讯作者:
--
中科院分区:
医学1区
文献类型:
--
作者:

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一项在秀丽隐杆线虫中进行的延长寿命的筛选已经确定了一种转录因子,该因子可以对细胞进行抗氧化应激、DNA修复和细胞周期控制的编程。该因子的哺乳动物直系同源物被称为“Foxo”,代表“Forkhead box”,名称中的第二个“o”表示由序列相关的四个成员组成的亚家族。这个因子家族受生长因子、氧化应激或营养剥夺的调节。因此,它可能很容易控制与感染驱动的淋巴细胞增殖相关的炎症反应。令人惊讶的是,对Foxo介导的免疫调节的第一个见解反而揭示了对适应性免疫系统的高度特化基因的直接控制。
A screen for increased longevity in Caenorhabditis elegans has identified a transcription factor that programs cells for resistance to oxidative stress, DNA repair and cell cycle control. The mammalian orthologs of this factor are referred to as ‘Foxo’ for ‘Forkhead box’, with the second ‘o’ in the name denoting a subfamily of four members related by sequence. This family of factors is regulated by growth factors, oxidative stress or nutrient deprivation. Thus, it might readily control the inflammatory conflagration associated with infection-driven lymphocyte proliferation. Surprisingly, the first insights into Foxo-mediated immune regulation have instead revealed direct control of highly specialized genes of the adaptive immune system.
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