PMID- 29613828 OWN - NLM STAT- MEDLINE DCOM- 20190208 LR - 20190503 IS - 1559-2308 (Electronic) IS - 1559-2294 (Print) IS - 1559-2294 (Linking) VI - 13 IP - 4 DP - 2018 TI - Activation of Class I histone deacetylases contributes to mitochondrial dysfunction in cardiomyocytes with altered complex activities. PG - 376-385 LID - 10.1080/15592294.2018.1460032 [doi] AB - Histone deacetylases (HDACs) play vital roles in the pathophysiology of heart failure, which is associated with mitochondrial dysfunction. Tumor necrosis factor-alpha (TNF-alpha) contributes to the genesis of heart failure and impairs mitochondria. This study evaluated the role of HDACs in TNF-alpha-induced mitochondrial dysfunction and investigated their therapeutic potential and underlying mechanisms. We measured mitochondrial oxygen consumption rate (OCR) and ATP production using Seahorse XF24 extracellular flux analyzer and bioluminescent assay in control and TNF-alpha (10 ng/ml, 24 h)-treated HL-1 cells with or without HDAC inhibition. TNF-alpha increased Class I and II (but not Class IIa) HDAC activities (assessed by Luminescent) with enhanced expressions of Class I (HDAC1, HDAC2, HDAC3, and HDAC8) but not Class IIb HDAC (HDAC6 and HDAC10) proteins in HL-1 cells. TNF-alpha induced mitochondrial dysfunction with impaired basal, ATP-linked, and maximal respiration, decreased cellular ATP synthesis, and increased mitochondrial superoxide production (measured by MitoSOX red fluorescence), which were rescued by inhibiting HDACs with MPT0E014 (1 muM, a Class I and IIb inhibitor), or MS-275 (1 muM, a Class I inhibitor). MPT0E014 reduced TNF-alpha-decreased complex I and II enzyme (but not III or IV) activities (by enzyme activity microplate assays). Our results suggest that Class I HDAC actions contribute to TNF-alpha-induced mitochondrial dysfunction in cardiomyocytes with altered complex I and II enzyme regulation. HDAC inhibition improves dysfunctional mitochondrial bioenergetics with attenuation of TNF-alpha-induced oxidative stress, suggesting the therapeutic potential of HDAC inhibition in cardiac dysfunction. FAU - Lkhagva, Baigalmaa AU - Lkhagva B AD - a Graduate Institute of Clinical Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. AD - b Department of Cardiology, School of Medicine , Mongolian National University of Medical Sciences , Ulaanbaatar , Mongolia. FAU - Kao, Yu-Hsun AU - Kao YH AD - a Graduate Institute of Clinical Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. AD - c Department of Medical Education and Research , Wan Fang Hospital , Taipei Medical University , Taipei , Taiwan. FAU - Lee, Ting-I AU - Lee TI AD - d Division of Endocrinology and Metabolism , Department of General Medicine , School of Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. AD - e Department of Internal Medicine , Wan Fang Hospital , Taipei Medical University , Taipei , Taiwan. FAU - Lee, Ting-Wei AU - Lee TW AD - a Graduate Institute of Clinical Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. AD - f Division of Endocrinology and Metabolism, Department of Internal Medicine , Wan Fang Hospital , Taipei Medical University , Taipei , Taiwan. FAU - Cheng, Wan-Li AU - Cheng WL AD - a Graduate Institute of Clinical Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. FAU - Chen, Yi-Jen AU - Chen YJ AD - a Graduate Institute of Clinical Medicine, College of Medicine , Taipei Medical University , Taipei , Taiwan. AD - g Division of Cardiovascular Medicine, Department of Internal Medicine , Wan Fang Hospital , Taipei Medical University , Taipei , Taiwan. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180503 PL - United States TA - Epigenetics JT - Epigenetics JID - 101265293 RN - 0 (3-(1-benzenesulfonyl-1H-indol-5-yl)-N-hydroxyacrylamide) RN - 0 (Benzamides) RN - 0 (Hydroxamic Acids) RN - 0 (Indoles) RN - 0 (Pyridines) RN - 0 (Tumor Necrosis Factor-alpha) RN - 1ZNY4FKK9H (entinostat) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - EC 3.5.1.98 (Histone Deacetylases) SB - IM MH - Adenosine Triphosphate/metabolism MH - Animals MH - Benzamides/pharmacology MH - Cell Line MH - Histone Deacetylases/*metabolism MH - Hydroxamic Acids/pharmacology MH - Indoles/pharmacology MH - Mice MH - Mitochondria/*drug effects/metabolism MH - Myocytes, Cardiac/*cytology/drug effects MH - Oxygen Consumption/drug effects MH - Pyridines/pharmacology MH - Tumor Necrosis Factor-alpha/*pharmacology MH - *Up-Regulation/drug effects PMC - PMC6140820 OTO - NOTNLM OT - Mitochondria OT - bioenergetics OT - histone deacetylase inhibition EDAT- 2018/04/04 06:00 MHDA- 2019/02/09 06:00 PMCR- 2019/05/03 CRDT- 2018/04/04 06:00 PHST- 2018/04/04 06:00 [pubmed] PHST- 2019/02/09 06:00 [medline] PHST- 2018/04/04 06:00 [entrez] PHST- 2019/05/03 00:00 [pmc-release] AID - 1460032 [pii] AID - 10.1080/15592294.2018.1460032 [doi] PST - ppublish SO - Epigenetics. 2018;13(4):376-385. doi: 10.1080/15592294.2018.1460032. Epub 2018 May 3.