MafA and MafB activity in pancreatic β cells.

MafA and MafB activity in pancreatic β cells.
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DOI:
10.1016/j.tem.2011.05.003
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发表时间:
2011-09
影响因子:
10.9
通讯作者:
Stein, Roland
Stein, Roland
中科院分区:
医学1区
文献类型:
--
作者:
Hang, Yan;Stein, Roland

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对小鼠模型的分析揭示了MafA和MafB在胰岛β细胞中的关键作用,MafB在发育过程中需要,而MafA在成人中需要。这两个密切相关的转录因子以协同和顺序的方式调节许多葡萄糖感知和胰岛素分泌所必需的基因。值得注意的是,从MafB到MafA表达的转换似乎也对人类胚胎干细胞分化产生的β细胞的功能成熟至关重要。本文综述了MafA和MafB在啮齿动物胰腺β细胞中的发现、分布和功能,并描述了它们在β细胞中的重要作用。
Analyses in mouse models have revealed crucial roles for MafA and MafB in islet β cells, with MafB required during development and MafA in adults. These two closely related transcription factors regulate many genes essential for glucose sensing and insulin secretion in a cooperative and sequential manner. Significantly, the switch from MafB to MafA expression also appears to be vital for functional maturation of the β cells produced by human embryonic stem (hES) cell differentiation. This review will summarize the discovery, distribution, and function of MafA and MafB in rodent pancreatic β cells, and describe some key questions regarding their importance to β cells.
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