Hypoxia-inducible factors in stem cells and cancer.

Hypoxia-inducible factors in stem cells and cancer.
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DOI:
10.1111/j.1582-4934.2009.00963.x
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发表时间:
2009-11
影响因子:
5.3
通讯作者:
Simon MC
Simon MC
中科院分区:
医学2区
文献类型:
--
作者:
Mazumdar J;Dondeti V;Simon MC

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细胞特性受到其微环境固有的复杂因素的影响。虽然由于快速细胞增殖和异常血管形成而在肿瘤中发生缺氧(缺氧),但胚胎细胞在自然发生的缺氧环境中发育。细胞通过稳定缺氧诱导因子(HIF)来响应缺氧,HIF传统上被认为通过改变细胞代谢和血管结构来发挥作用。最近,HIF已被证明可以调节特定的干细胞效应子,如Notch、Wnt和Oct4,它们控制干细胞增殖、分化和多能性。在HIF和关键细胞信号传导途径如cMyc和p53之间也建立了直接的分子联系。这些新的联系表明HIFs在干细胞和肿瘤调节中发挥了新的作用。
Cellular properties are influenced by complex factors inherent to their microenvironments. While oxygen deprivation (hypoxia) occurs in tumours because of rapid cell proliferation and aberrant blood vessel formation, embryonic cells develop in a naturally occurring hypoxic environment. Cells respond to hypoxia by stabilizing hypoxia-inducible factors (HIFs), which are traditionally viewed to function by altering cellular metabolism and blood vessel architecture. Recently, HIFs have been shown to modulate specific stem cell effectors, such as Notch, Wnt and Oct4 that control stem cell proliferation, differentiation and pluripotency. Direct molecular links have also been established between HIFs and critical cell signalling pathways such as cMyc and p53. These novel links suggest a new role for HIFs in stem cell and tumour regulation.
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