Epigenetic Regulation of Myocardial Homeostasis, Self-Regeneration and Senescence

Author(s): Marco Matteucci, Gaia Papini, Enrica Ciofini, Lucio Barile, Vincenzo Lionetti

Journal Name: Current Drug Targets

Volume 16 , Issue 8 , 2015

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The adult myocardium has limited capacity to preserve, renew or rejuvenate itself. The local microenvironment may induce epigenetic changes affecting the survival, proliferation, function and senescence of cardiac cells at rest and following the exposure to different stressors. The cellular response to microenvironment is characterized by the release of ions, oxygen free radicals, auto/paracrine factors and RNAs that drive the magnitude of gene reprogramming through the interaction with specific promoters. The epigenetic alterations may act at transcriptional and post-transcriptional level and change cardiac physiological traits. The abnormal DNA methylation underlies the progressive decay of contractile function and the angiogenic ability; while, the histone acetylation promotes the survival, function and proliferation of cardiac cells in the presence of ischemic microenvironment. At least, the expression and secretion of microRNAs and long noncoding RNAs may regulate the threshold to stress tolerance of adult cardiac cells and induce the matrix turnover as well. Natural or synthetic active compounds effectively modulate the epigenetic state of cardiac cells. Plant foods contain many active compounds with epigenetic properties and might assume a clinical significance as natural cardiac regenerators or rejuvenators. Our review describes novel epigenetic mechanisms that underpin myocardial remodeling, repair/ regeneration or senescence in order to support the development of most effective and reproducible rescue therapy of adult heart.

Keywords: Ageing, cardiac remodeling, epigenetics, heart failure, myocardial regeneration, natural compounds.

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Article Details

Year: 2015
Published on: 12 August, 2015
Page: [827 - 842]
Pages: 16
DOI: 10.2174/1389450116666150630110821
Price: $65

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