PMID- 29902536 OWN - NLM STAT- MEDLINE DCOM- 20190916 LR - 20211204 IS - 1090-2422 (Electronic) IS - 0014-4827 (Linking) VI - 370 IP - 1 DP - 2018 Sep 1 TI - Aldolase promotes the development of cardiac hypertrophy by targeting AMPK signaling. PG - 78-86 LID - S0014-4827(18)30339-2 [pii] LID - 10.1016/j.yexcr.2018.06.009 [doi] AB - Metabolic dysfunction is a hallmark of cardiac hypertrophy and heart failure. During cardiac failure, the metabolism of cardiomyocyte switches from fatty acid oxidation to glycolysis. However, the roles of key metabolic enzymes in cardiac hypertrophy are not understood fully. Here in the present work, we identified Aldolase A (AldoA) as a core regulator of cardiac hypertrophy. The mRNA and protein levels of AldoA were significantly up-regulated in transverse aortic constriction (TAC)- and isoproterenol (ISO)-induced hypertrophic mouse hearts. Overexpression of AldoA in cardiomyocytes promoted ISO-induced cardiomyocyte hypertrophy, whereas AldoA knockdown repressed cardiomyocyte hypertrophy. In addition, adeno-associated virus 9 (AAV9)-mediated in vivo knockdown of AldoA in the hearts rescued ISO-induced decrease in cardiac ejection fraction and fractional shortening and repressed cardiac hypertrophy. Mechanism study revealed that AldoA repressed the activation of AMP-dependent protein kinase (AMPK) signaling in a liver kinase B1 (LKB1)-dependent and AMP-independent manner. Inactivation of AMPK is a core mechanism underlying AldoA-mediated promotion of ISO-induced cardiomyocyte hypertrophy. By contrast, activation of AMPK with metformin and AICAR blocked AldoA function during cardiomyocyte hypertrophy. In summary, our data support the notion that AldoA-AMPK axis is a core regulatory signaling sensing energetic status and participates in cardiac hypertrophy. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Li, Yapeng AU - Li Y AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Zhang, Dianhong AU - Zhang D AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Kong, Lingyao AU - Kong L AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Shi, Huiting AU - Shi H AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Tian, Xinyu AU - Tian X AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Gao, Lu AU - Gao L AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Liu, Yuzhou AU - Liu Y AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Wu, Leiming AU - Wu L AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Du, Binbin AU - Du B AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Huang, Zhen AU - Huang Z AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Liang, Cui AU - Liang C AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Wang, Zheng AU - Wang Z AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Yao, Rui AU - Yao R AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. FAU - Zhang, Yanzhou AU - Zhang Y AD - Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. Electronic address: zhangyzxnk@163.com. LA - eng PT - Journal Article DEP - 20180611 PL - United States TA - Exp Cell Res JT - Experimental cell research JID - 0373226 RN - 0 (Ribonucleotides) RN - 360-97-4 (Aminoimidazole Carboxamide) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.31 (AMP-Activated Protein Kinases) RN - EC 4.1.2.13 (Fructose-Bisphosphate Aldolase) RN - F0X88YW0YK (AICA ribonucleotide) SB - IM MH - AMP-Activated Protein Kinases/*metabolism MH - Aminoimidazole Carboxamide/analogs & derivatives/metabolism MH - Animals MH - Cardiomegaly/*metabolism/*pathology MH - Fructose-Bisphosphate Aldolase/*metabolism MH - Heart/physiopathology MH - Heart Failure/metabolism/pathology MH - Male MH - Mice MH - Myocardium/metabolism/pathology MH - Myocytes, Cardiac/metabolism/pathology MH - Protein Serine-Threonine Kinases/metabolism MH - Ribonucleotides/metabolism MH - Signal Transduction/*physiology MH - Up-Regulation/physiology OTO - NOTNLM OT - AMPK OT - Aldolase A OT - Cardiac hypertrophy OT - LKB1 OT - Metabolism EDAT- 2018/06/15 06:00 MHDA- 2019/09/17 06:00 CRDT- 2018/06/15 06:00 PHST- 2018/02/03 00:00 [received] PHST- 2018/05/27 00:00 [revised] PHST- 2018/06/10 00:00 [accepted] PHST- 2018/06/15 06:00 [pubmed] PHST- 2019/09/17 06:00 [medline] PHST- 2018/06/15 06:00 [entrez] AID - S0014-4827(18)30339-2 [pii] AID - 10.1016/j.yexcr.2018.06.009 [doi] PST - ppublish SO - Exp Cell Res. 2018 Sep 1;370(1):78-86. doi: 10.1016/j.yexcr.2018.06.009. Epub 2018 Jun 11.