Abstract
The development and differentiation of distinct cell types is achieved through the sequential expression of subsets of genes; yet, the molecular mechanisms that temporally pattern gene expression remain largely unknown. In skeletal myogenesis, gene expression is initiated by MyoD and includes the expression of specific Mef2 isoforms and activation of the p38 mitogen-activated protein kinase (MAPK) pathway. Here, we show that p38 activity facilitates MyoD and Mef2 binding at a subset of late-activated promoters, and the binding of Mef2D recruits Pol II. Most importantly, expression of late-activated genes can be shifted to the early stages of differentiation by precocious activation of p38 and expression of Mef2D, demonstrating that a MyoD-mediated feed-forward circuit temporally patterns gene expression.
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Dates
Type | When |
---|---|
Created | 20 years, 11 months ago (Oct. 4, 2004, 2:22 p.m.) |
Deposited | 3 years, 9 months ago (Nov. 16, 2021, 11:15 p.m.) |
Indexed | 1 month, 3 weeks ago (July 11, 2025, 6:16 a.m.) |
Issued | 20 years, 11 months ago (Oct. 1, 2004) |
Published | 20 years, 11 months ago (Oct. 1, 2004) |
Published Online | 20 years, 11 months ago (Oct. 1, 2004) |
Published Print | 20 years, 11 months ago (Oct. 1, 2004) |
@article{Penn_2004, title={A MyoD-generated feed-forward circuit temporally patterns gene expression during skeletal muscle differentiation}, volume={18}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.1234304}, DOI={10.1101/gad.1234304}, number={19}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Penn, Bennett H. and Bergstrom, Donald A. and Dilworth, F. Jeffrey and Bengal, Eyal and Tapscott, Stephen J.}, year={2004}, month=oct, pages={2348–2353} }