Molecular regulation of stem cell quiescence.

Molecular regulation of stem cell quiescence.
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DOI:
10.1038/nrm3591
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发表时间:
2013-06
期刊:
Nature reviews. Molecular cell biology
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哺乳动物成体干细胞的亚群长时间处于静止状态。这种状态是可逆的,长期以来一直被视为休眠状态,具有最小的基础活性。成体干细胞分离的最新进展提供了对静止的表观遗传、转录和转录后控制的见解,并表明静止是一种积极维持的状态,其中信号通路参与维持允许快速激活的平衡状态。破译调节成体干细胞静止的分子机制将增加我们对组织再生机制以及它们在病理条件和衰老中如何失调的理解。
Subsets of mammalian adult stem cells reside in the quiescent state for prolonged periods of time. This state, which is reversible, has long been viewed as dormant and with minimal basal activity. Recent advances in adult stem cell isolation have provided insights into the epigenetic, transcriptional and post-transcriptional control of quiescence and suggest that quiescence is an actively maintained state in which signalling pathways are involved in maintaining a poised state that allows rapid activation. Deciphering the molecular mechanisms regulating adult stem cell quiescence will increase our understanding of tissue regeneration mechanisms and how they are dysregulated in pathological conditions and in ageing.
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