Pluripotency factors in embryonic stem cells regulate differentiation into germ layers.
Pluripotency factors in embryonic stem cells regulate differentiation into germ layers.
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DOI:
10.1016/j.cell.2011.05.017
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发表时间:
2011-06-10
期刊:
影响因子:
64.5
通讯作者:
Ramanathan S
中科院分区:
文献类型:
--
作者:
Thomson M;Liu SJ;Zou LN;Smith Z;Meissner A;Ramanathan S
Cell fate decisions are fundamental for development, but we do not know how cells select between alternate fates. Here, we asked how mouse embryonic stem (ES) cells leave the pluripotent state and choose between germ layer fates. By analyzing the dynamics of the transcriptional circuit that maintains the pluripotent state during lineage choice, we found that the proteins that maintain ES cell identity also orchestrate germ layer fate selection. Core pluripotency factors, Oct4 and Sox2, each suppress differentiation into a single germ layer fate. Differentiation signals continuously and asymmetrically modulate Oct4 and Sox2 protein levels, altering their binding pattern in the genome, and leading to cell fate choice. The same factors that maintain pluripotency, thus, also integrate external signals and control lineage selection. Our study provides a framework for understanding how complex transcription factor networks control cell fate decisions in progenitor cells.
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作者:
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