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Trends Cell Biol. 2009 Jun;19(6):286-94. doi: 10.1016/j.tcb.2009.03.002. Epub 2009 Apr 23.

Chromatin: the interface between extrinsic cues and the epigenetic regulation of muscle regeneration.

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  • 1Istituto Dulbecco Telethon at Istituto Di Ricovero e Cura a Carattere Scientifico, Santa Lucia Fondazione and European Brain Research Institute, 64 Via del Fosso di Fiorano, Rome, Italy.


Muscle regeneration provides a paradigm by which to study how extrinsic signals coordinate gene expression in somatic stem cells (satellite cells) by directing the genome distribution of chromatin-modifying complexes. Understanding the signal-dependent control of the epigenetic events underlying the transition of muscle stem cells through sequential regeneration stages holds the promise to reveal new targets for selective interventions toward repairing diseased muscles. This review describes the latest findings on how regeneration cues are integrated at the chromatin level to build the transcription network that regulates progression of endogenous muscle progenitors throughout the myogenic program. In particular, we describe how specific epigenetic signatures can confer responsiveness to extrinsic cues on discrete regions of the muscle stem cell genome.

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