Cell cycle regulation in hematopoietic stem cells.

Cell cycle regulation in hematopoietic stem cells.
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DOI:
10.1083/jcb.201102131
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发表时间:
2011-11-28
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Passegué E
Passegué E
中科院分区:
其他
文献类型:
--
作者:
Pietras EM;Warr MR;Passegué E

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造血干细胞(hsc)产生所有血统的血细胞。由于造血干细胞必须持续一生,它们的增殖和静止之间的平衡被仔细调节,以确保血液稳态,同时限制细胞损伤。因此,细胞周期调节在控制胚胎和成人期间的HSC功能中起着关键作用。造血干细胞的细胞周期活性是由微环境产生的细胞内在机制和细胞外在因素之间复杂的相互作用精心调节的。这种微调的调节网络可能随着年龄的增长而改变,导致异常的HSC细胞周期调节,HSC功能退化和血液恶性肿瘤。
Hematopoietic stem cells (HSCs) give rise to all lineages of blood cells. Because HSCs must persist for a lifetime, the balance between their proliferation and quiescence is carefully regulated to ensure blood homeostasis while limiting cellular damage. Cell cycle regulation therefore plays a critical role in controlling HSC function during both fetal life and in the adult. The cell cycle activity of HSCs is carefully modulated by a complex interplay between cell-intrinsic mechanisms and cell-extrinsic factors produced by the microenvironment. This fine-tuned regulatory network may become altered with age, leading to aberrant HSC cell cycle regulation, degraded HSC function, and hematological malignancy.
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