Epigenome changes in chronic states of cardiovascular stress including diabetes, pressure overload and cardiomyopathies frequently involve changes in open chromatin and post-translation modifications of histone lysine residues at specific amino acid positions by acetylation, methylation and phosphorylation. Since the discovery of Set7 as an important regulator of histone H3 lysine 4 methylation state, there has been wide interest in its role in cardiovascular remodeling and cardiac dysfunction. Recent transcriptome and Fourier transform infrared spectroscopy analyses and in vivo assessments of cardiac function by Lunardon and colleagues now reveal a clear role of Set7 in the regulation of the extracellular matrix composition and cardiac hypertrophy in response to chronic isoproterenol induced cardiac stress.

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