Roles of Krüpel-like factor 4 in normal homeostasis, cancer and stem cells.

Roles of Krüpel-like factor 4 in normal homeostasis, cancer and stem cells.
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Krüpel 样因子 4 在正常体内平衡、癌症和干细胞中的作用。

DOI:
10.1111/j.1745-7270.2008.00439.x
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发表时间:
2008-07
影响因子:
3.7
通讯作者:
Liu C
Liu C
中科院分区:
生物学3区
文献类型:
--
作者:
Evans PM;Liu C

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KRüppel样因子4是一种锌指转录因子,在多种组织中表达,包括肠上皮和皮肤上皮,在细胞分化和细胞周期停滞中起重要作用。KLF4可以激活和抑制转录,这取决于靶基因。此外,KLF4可以作为肿瘤抑制基因或癌基因发挥作用,这取决于细胞环境。最后,KLF4在将分化的成纤维细胞重新编程为可诱导的多能干细胞方面非常重要,这种干细胞与胚胎干细胞非常相似。本文将对KLF4的多种功能及其分子机制作一综述。
Krüppel-like factor 4 is a zinc finger-type transcription factor expressed in a variety of tissues, including the epithelium of intestine and the skin, where it is important in differentiation and cell cycle arrest. KLF4 can both activate and repress transcription, depending on the gene targeted. Moreover, KLF4 can function as a tumor suppressor or an oncogene, depending on the cellular context. Finally, KLF4 is important in reprogramming differentiated fibroblasts into inducible pluripotent stem cells, which highly resemble embryonic stem cells. This review will summarize what is known about the diverse functions of KLF4, as well as their molecular mechanisms.
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