Metabolic requirements for the maintenance of self-renewing stem cells.

Metabolic requirements for the maintenance of self-renewing stem cells.
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DOI:
10.1038/nrm3772
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发表时间:
2014-04
期刊:
Nature reviews. Molecular cell biology
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干细胞的一个显著特征是它们自我更新以维持多能性的能力。基因工程小鼠模型的研究和代谢组学分析的最新进展,特别是在造血干细胞中,加深了我们对代谢线索对干细胞自我更新调节的贡献的理解。许多类型的干细胞严重依赖于无氧糖酵解,并且干细胞功能也受到生物能信号传导、AKT-mTOR途径、Gln代谢和脂肪酸代谢的调节。由于干细胞库的维持需要自我更新和分化之间的微调平衡,因此对这些决定背后的分子机制和代谢途径的研究具有很大的治疗前景。
A distinctive feature of stem cells is their capacity to self-renew to maintain pluripotency. Studies of genetically-engineered mouse models and recent advances in metabolomic analysis, particularly in haematopoietic stem cells, have deepened our understanding of the contribution made by metabolic cues to the regulation of stem cell self-renewal. Many types of stem cells heavily rely on anaerobic glycolysis, and stem cell function is also regulated by bioenergetic signalling, the AKT–mTOR pathway, Gln metabolism and fatty acid metabolism. As maintenance of a stem cell pool requires a finely-tuned balance between self-renewal and differentiation, investigations into the molecular mechanisms and metabolic pathways underlying these decisions hold great therapeutic promise.
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