Stressin' Sestrins take an aging fight.

Stressin' Sestrins take an aging fight.
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DOI:
10.1002/emmm.201000097
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发表时间:
2010-10
影响因子:
11.1
通讯作者:
Karin, Michael
Karin, Michael
中科院分区:
医学1区
文献类型:
--
作者:
Budanou, Andrei V.;Lee, Jun Hee;Karin, Michael

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Sestrins(Sesns)是一类高度保守的应激反应蛋白,受p53和forkhead转录因子的转录调控,具有体外氧化还原酶活性,可保护细胞免受氧化应激。然而,它们的主要生化和生理功能似乎并不取决于它们的氧化还原(还原和氧化)活性。Sesns促进哺乳动物和果蝇中腺苷-5 ′-单磷酸(AMP)依赖性蛋白激酶的活化。应激诱导的Sesn表达导致抑制雷帕霉素复合物1(TORC 1)的靶点,并且破坏Sesns-TORC 1串扰的生理和病理意义现在正在被解开。详细说明它们的作用机制并探索它们在人体生理学中的作用,为压力,癌症,新陈代谢和衰老等各种主题提供了令人兴奋的新见解。
Sestrins (Sesns) are a family of highly conserved stress-responsive proteins, transcriptionally regulated by p53 and forkhead transcription factor that exhibit oxidoreductase activity in vitro and can protect cells from oxidative stress. However, their major biochemical and physiological function does not appear to depend on their redox (reduction and oxidation) activity. Sesns promote activation of adenosine-5′-monophosphate (AMP)-dependent protein kinase in both mammals and flies. Stress-induced Sesn expression results in inhibition of the target of rapamycin complex 1 (TORC1) and the physiological and pathological implications of disrupting the Sesns-TORC1 crosstalk are now being unravelled. Detailing their mechanism of action and exploring their roles in human physiology point to exciting new insights to topics as diverse as stress, cancer, metabolism and aging.
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