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Comment
. 2005 Sep 23;122(6):828-30.
doi: 10.1016/j.cell.2005.09.002.

Chipping away at the embryonic stem cell network

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Chipping away at the embryonic stem cell network

Stuart H Orkin. Cell. .
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Abstract

Critical transcription factors, notably OCT4, SOX2, and NANOG, are necessary to maintain self-renewal and pluripotency, two properties characteristic of embryonic stem (ES) cells. By analyzing the genome-wide localization of these factors at promoter regions in human ES cells, Boyer et al. (2005) demonstrate frequent promoter co-occupancy at numerous target genes. As they discuss in this issue of Cell, their findings indicate the presence of a complex network of autoregulatory and feedforward loops in human ES cells.

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