Xist function:: bridging chromatin and stem cells

被引：48

作者：

Wutz, Anton ^{[1
]}

机构：

[1] Res Inst Mol Pathol, A-1030 Vienna, Austria

来源：

TRENDS IN GENETICS | 2007年 / 23卷 / 09期

关键词：

D O I：

10.1016/j.tig.2007.07.004

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

in mammals, dosage compensation is achieved by transcriptional silencing of one of the two female X chromosomes. X inactivation is dynamically regulated in development. The non-coding Xist RNA localizes to the inactive X, initiates gene repression in the early embryo, and later stabilizes the inactive state. Different functions of Xist are observed depending on which epigenetic regulatory pathways are active in a given cell. Because Xist has evolved recently, with the origin of placental mammals, the underlying pathways are also important in regulating developmental control genes. This review emphasizes the opportunity that Xist provides to functionally define epigenetic transitions in development, to understand cell identity, pluripotency and stem cell differentiation.

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页码：457 / 464

页数：8

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