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Funamoto, Masafumi; Sunagawa, Yoichi; Katanasaka, Yasufumi; Shimizu, Kana; Miyazaki, Yusuke; Sari, Nurmila; Shimizu, Satoshi; Mori, Kiyoshi; Wada, Hiromichi; Hasegawa, Koji; Morimoto, Tatsuya
International journal of molecular sciences, 02/2021, Volume: 22, Issue: 4Journal Article
Histone acetylation by epigenetic regulators has been shown to activate the transcription of hypertrophic response genes, which subsequently leads to the development and progression of heart failure. However, nothing is known about the acetylation of the histone tail and globular domains in left ventricular hypertrophy or in heart failure. The acetylation of H3K9 on the promoter of the hypertrophic response gene was significantly increased in the left ventricular hypertrophy stage, whereas the acetylation of H3K122 did not increase in the left ventricular hypertrophy stage but did significantly increase in the heart failure stage. Interestingly, the interaction between the chromatin remodeling factor BRG1 and p300 was significantly increased in the heart failure stage, but not in the left ventricular hypertrophy stage. This study demonstrates that stage-specific acetylation of the histone tail and globular domains occurs during the development and progression of heart failure, providing novel insights into the epigenetic regulatory mechanism governing transcriptional activity in these processes.
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