PMID- 34278478 OWN - NLM STAT- MEDLINE DCOM- 20211214 LR - 20211214 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 24 IP - 3 DP - 2021 Sep TI - Interactions between the ERK1/2 signaling pathway and PCAF play a key role in PE‑induced cardiomyocyte hypertrophy. LID - 636 [pii] LID - 10.3892/mmr.2021.12275 [doi] AB - Cardiomyocyte hypertrophy is a compensatory phase of chronic heart failure that is induced by the activation of multiple signaling pathways. The extracellular signal‑regulated protein kinase (ERK) signaling pathway is an important regulator of cardiomyocyte hypertrophy. In our previous study, it was demonstrated that phenylephrine (PE)‑induced cardiomyocyte hypertrophy involves the hyperacetylation of histone H3K9ac by P300/CBP‑associated factor (PCAF). However, the upstream signaling pathway has yet to be fully identified. In the present study, the role of the extracellular signal‑regulated protein kinase (ERK)1/2 signaling pathway in PE‑induced cardiomyocyte hypertrophy was investigated. The mice cardiomyocyte hypertrophy model was successfully established by treating cells with PE in vitro. The results showed that phospho‑(p‑)ERK1/2 interacted with PCAF and modified the pattern of histone H3K9ac acetylation. An ERK inhibitor (U0126) and/or a histone acetylase inhibitor (anacardic acid; AA) attenuated the overexpression of phospho‑ERK1/2 and H3K9ac hyperacetylation by inhibiting the expression of PCAF in PE‑induced cardiomyocyte hypertrophy. Moreover, U0126 and/or AA could attenuate the overexpression of several biomarker genes related to cardiac hypertrophy (myocyte enhancer factor 2C, atrial natriuretic peptide, brain natriuretic peptide and beta‑myosin heavy chain) and prevented cardiomyocyte hypertrophy. These results revealed a novel mechanism in that AA protects against PE‑induced cardiomyocyte hypertrophy in mice via the ERK1/2 signaling pathway, and by modifying the acetylation of H3K9ac. These findings may assist in the development of novel methods for preventing and treating hypertrophic cardiomyopathy. FAU - Mao, Qian AU - Mao Q AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Wu, Shuqi AU - Wu S AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Peng, Chang AU - Peng C AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Peng, Bohui AU - Peng B AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Luo, Xiaomei AU - Luo X AD - Department of Physiology, School of Basic Medical Sciences, Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Huang, Lixin AU - Huang L AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. FAU - Zhang, Huanting AU - Zhang H AD - Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, P.R. China. LA - eng PT - Journal Article DEP - 20210719 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Anacardic Acids) RN - 0 (Butadienes) RN - 0 (Histones) RN - 0 (MEF2 Transcription Factors) RN - 0 (Nitriles) RN - 0 (U 0126) RN - 18654-18-7 (anacardic acid) RN - 1WS297W6MV (Phenylephrine) RN - EC 2.3.1.48 (Histone Acetyltransferases) RN - EC 2.3.1.48 (p300-CBP Transcription Factors) RN - EC 2.3.1.48 (p300-CBP-associated factor) SB - IM MH - Acetylation MH - Anacardic Acids MH - Animals MH - Butadienes MH - Cardiomegaly/metabolism MH - Cell Survival MH - Disease Models, Animal MH - Female MH - Histone Acetyltransferases MH - Histones/metabolism MH - MAP Kinase Signaling System/*physiology MH - MEF2 Transcription Factors MH - Male MH - Mice MH - Myocytes, Cardiac/*metabolism MH - Nitriles MH - Phenylephrine/*pharmacology MH - Signal Transduction/drug effects MH - p300-CBP Transcription Factors/*metabolism PMC - PMC8281443 OTO - NOTNLM OT - ERK‑signaling pathway OT - anacardic acid OT - cardiomyocyte hypertrophy OT - histone acetylation COIS- The authors declare that they have no competing interests. EDAT- 2021/07/20 06:00 MHDA- 2021/12/15 06:00 PMCR- 2021/07/06 CRDT- 2021/07/19 06:11 PHST- 2020/11/25 00:00 [received] PHST- 2021/06/23 00:00 [accepted] PHST- 2021/07/19 06:11 [entrez] PHST- 2021/07/20 06:00 [pubmed] PHST- 2021/12/15 06:00 [medline] PHST- 2021/07/06 00:00 [pmc-release] AID - 636 [pii] AID - MMR-0-0-12275 [pii] AID - 10.3892/mmr.2021.12275 [doi] PST - ppublish SO - Mol Med Rep. 2021 Sep;24(3):636. doi: 10.3892/mmr.2021.12275. Epub 2021 Jul 19.