Global Transcription in Pluripotent Embryonic Stem Cells

Efroni, S., Duttagupta, R., Cheng, J., Dehghani, H., Hoeppner, D. J., Dash, C., Bazett-Jones, D. P., Le Grice, S., McKay, R. D. G., Buetow, K. H., Gingeras, T. R., Misteli, T., Meshorer, E. (2008) Global Transcription in Pluripotent Embryonic Stem Cells. Cell Stem Cell, 2 (5). pp. 437-447. ISSN 19345909 (ISSN) (Public Dataset)

URL: http://www.ncbi.nlm.nih.gov/pubmed/18462694
DOI: 10.1016/j.stem.2008.03.021

Abstract

The molecular mechanisms underlying pluripotency and lineage specification from embryonic stem cells (ESCs) are largely unclear. Differentiation pathways may be determined by the targeted activation of lineage-specific genes or by selective silencing of genome regions. Here we show that the ESC genome is transcriptionally globally hyperactive and undergoes large-scale silencing as cells differentiate. Normally silent repeat regions are active in ESCs, and tissue-specific genes are sporadically expressed at low levels. Whole-genome tiling arrays demonstrate widespread transcription in coding and noncoding regions in ESCs, whereas the transcriptional landscape becomes more discrete as differentiation proceeds. The transcriptional hyperactivity in ESCs is accompanied by disproportionate expression of chromatin-remodeling genes and the general transcription machinery. We propose that global transcription is a hallmark of pluripotent ESCs, contributing to their plasticity, and that lineage specification is driven by reduction of the transcribed portion of the genome. © 2008 Elsevier Inc. All rights reserved.

Item Type: Paper
Uncontrolled Keywords: STEMCELL animal cell article cell differentiation chromatin assembly and disassembly embryonic stem cell gene activation gene silencing genetic transcription genome male nonhuman plasticity pluripotent stem cell priority journal Animals Cell Lineage DNA, Intergenic Embryonic Stem Cells Epigenesis, Genetic Gene Expression Profiling Humans Mice Pluripotent Stem Cells Transcription, Genetic Transcriptional Activation
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > transcription
therapies > stem cells
CSHL Authors:
Communities: CSHL labs > Gingeras lab
Depositing User: CSHL Librarian
Date: 2008
Date Deposited: 08 Mar 2012 15:14
Last Modified: 12 Jul 2013 19:46
PMCID: PMC2435228
Related URLs:
Dataset ID:
URI: http://repository.cshl.edu/id/eprint/25326

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