Energy metabolism plasticity enables stemness programs.

Energy metabolism plasticity enables stemness programs.
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DOI:
10.1111/j.1749-6632.2012.06487.x
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发表时间:
2012-04
影响因子:
5.2
通讯作者:
Terzic A
Terzic A
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Folmes CDL;Nelson TJ;Dzeja PP;Terzic A

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通过核重编程和将干细胞重定向到确定的谱系来重置多能性,强调了显着的细胞命运可塑性。干性的获得和脱离是由遗传和表观遗传控制器控制的。能量代谢和相关信号传导的调节越来越多地涉及细胞身份的确定。从体细胞组织典型的氧化代谢转变为糖酵解是促进熟练的重编程将分化的细胞型引导回多能状态的先决条件。糖酵解代谢型支持多能细胞稳态的合成代谢和分解代谢要求。相反,将多能性重定向到确定的谱系需要线粒体生物发生以及有效氧化 ATP 生成和分配网络的成熟,以满足不断变化的生物能需求。生物能量学在调节干性和谱系规范方面的重要功能意味着代谢重编程在细胞命运决定和组织再生潜力确定中发挥更广泛的作用。
Resetting pluripotency through nuclear reprogramming and redirecting stem cells into defined lineages underscores remarkable cell fate plasticity. Acquisition of and departure from stemness are governed by genetic and epigenetic controllers. Modulation of energy metabolism and associated signaling is increasingly implicated in cell identity determination. Transition from oxidative metabolism, typical of somatic tissues, into glycolysis is a prerequisite to fuel proficient reprogramming directing a differentiated cytotype back to the pluripotent state. The glycolytic metabotype supports the anabolic and catabolic requirements of pluripotent cell homeostasis. Conversely, redirection of pluripotency into defined lineages requires mitochondrial biogenesis and maturation of efficient oxidative ATP generation and distribution networks to match the evolving bioenergetic demands. The vital function of bioenergetics in regulating stemness and lineage specification implicates a broader role for metabolic reprogramming in cell fate decision and determination of tissue regenerative potential.
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