Decoding the stem cell quiescence cycle--lessons from yeast for regenerative biology.

Decoding the stem cell quiescence cycle--lessons from yeast for regenerative biology.
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DOI:
10.1242/jcs.177758
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发表时间:
2015-12-15
影响因子:
4
通讯作者:
Laxman S
Laxman S
中科院分区:
生物学2区
文献类型:
--
作者:
Dhawan J;Laxman S

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在过去的十年中,对哺乳动物干细胞生物学的理解取得了重大进展,但在将这些知识转化为再生医学方面仍然存在障碍(包括我们基本理解的差距)。有趣的是,对酿酒酵母文献的仔细分析导致了对酵母生物学对支撑我们对干细胞行为理解的概念框架的贡献的赞赏,以至于这些见解已经内化到已知领域。这篇观点文章聚焦于一个这样的例子,静止的成年哺乳动物干细胞,并检查了我们对静止的理解的基础概念,这些概念可以归因于酵母的研究。我们讨论代谢,信号和基因调控事件,控制进入和退出休眠酵母。这些过程和事件在哺乳动物系统中保持着显著的保守性和概念上的相似性,并共同表明在细胞分裂停止之后存在一个受调节的程序。我们认为,对酵母的研究不仅将继续揭示静止的基本概念,而且还将推动再生医学的进展。
In the past decade, major advances have occurred in the understanding of mammalian stem cell biology, but roadblocks (including gaps in our fundamental understanding) remain in translating this knowledge to regenerative medicine. Interestingly, a close analysis of the Saccharomyces cerevisiae literature leads to an appreciation of how much yeast biology has contributed to the conceptual framework underpinning our understanding of stem cell behavior, to the point where such insights have been internalized into the realm of the known. This Opinion article focuses on one such example, the quiescent adult mammalian stem cell, and examines concepts underlying our understanding of quiescence that can be attributed to studies in yeast. We discuss the metabolic, signaling and gene regulatory events that control entry and exit into quiescence in yeast. These processes and events retain remarkable conservation and conceptual parallels in mammalian systems, and collectively suggest a regulated program beyond the cessation of cell division. We argue that studies in yeast will continue to not only reveal fundamental concepts in quiescence, but also leaven progress in regenerative medicine.
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