The FOXO signaling axis displays conjoined functions in redox homeostasis and stemness.

The FOXO signaling axis displays conjoined functions in redox homeostasis and stemness.
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FOXO信号轴在氧化还原稳态和干性中显示联合功能。

DOI:
10.1016/j.freeradbiomed.2021.04.022
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发表时间:
2021-06
影响因子:
7.4
通讯作者:
zur Nieden, Nicole, I
zur Nieden, Nicole, I
中科院分区:
医学1区
文献类型:
--
作者:
Soh, Ruthia;Hardy, Ariana;zur Nieden, Nicole, I

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以前关于活性氧物种(ROS)的观点将它们描述为有害的代谢副产品,因为不受控制的ROS水平会导致DNA损伤和细胞死亡。然而,最近的研究揭示了ROS在干细胞自我更新或分化中的关键作用。ROS水平、代谢和下游氧化还原信号通路之间的相互作用影响干细胞的命运。在这篇综述中,我们将定义ROS,解释它们是如何产生的,以及ROS信号如何影响转录因子,首先也是最重要的叉头盒-O转录因子,这些转录因子不仅塑造细胞的氧化还原状态,而且还影响干细胞的命运。既然研究已经阐明了氧化还原动态平衡的重要性和氧化还原信号的作用,了解这种相互作用背后的机制将进一步揭示干细胞生物学。
Previous views of reactive oxygen species (ROS) depicted them as harmful byproducts of metabolism as uncontrolled levels of ROS can lead to DNA damage and cell death. However, recent studies have shed light into the key role of ROS in the self-renewal or differentiation of the stem cell. The interplay between ROS levels, metabolism, and the downstream redox signaling pathways influence stem cell fate. In this review we will define ROS, explain how they are generated, and how ROS signaling can influence transcription factors, first and foremost forkhead box-O transcription factors, that shape not only the cellular redox state, but also stem cell fate. Now that studies have illustrated the importance of redox homeostasis and the role of redox signaling, understanding the mechanisms behind this interplay will further shed light into stem cell biology.
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