title: Branched chain amino acid metabolic reprogramming in heart failure.
abstract: Metabolic remodeling is a hall-mark of cardiac maturation and pathology. The switch of substrate utilization from glucose to fatty acid is observed during post-natal maturation period in developing heart, but the process is reversed from fatty acids to glucose in the failing hearts across different clinic and experimental models. Majority of the current investigations have been focusing on the regulatory mechanism and functional impact of this metabolic reprogramming involving fatty acids and carbohydrates. Recent progress in metabolomics and transcriptomic analysis, however, revealed another significant remodeled metabolic branch associated with cardiac development and disease, i.e. Branched-Chain Amino Acid (BCAA) catabolism. These findings have established BCAA catabolic deficiency as a novel metabolic feature in failing hearts with potentially significant impact on the progression of pathological remodeling and dysfunction. In this review, we will evaluate the current evidence and potential implication of these discoveries in the context of heart diseases and novel therapies. This article is part of a Special Issue entitled: The role of post-translational protein modifications on heart and vascular metabolism edited by Jason R.B. Dyck & Jan F.C. Glatz.
authors.affiliation: Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Departments of Anesthesiology, Physiology and Medicine, David Geffen School of Medicine, University of California, Los Angeles, United States.
authors.forename: Haipeng
authors.initials: H
authors.lastname: Sun
authors.affiliation: Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education, Department of Pathophysiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China; Departments of Anesthesiology, Physiology and Medicine, David Geffen School of Medicine, University of California, Los Angeles, United States. Electronic address: yibinwang@mednet.ucla.edu.
authors.forename: Yibin
authors.initials: Y
authors.lastname: Wang
mesh_terms: D000597:Amino Acids, Branched-Chain / Q000378:metabolism*; D000818:Animals; D050260:Carbohydrate Metabolism; D005227:Fatty Acids / Q000378:metabolism; D006333:Heart Failure / Q000378:metabolism* / Q000473:pathology; D006801:Humans; D009206:Myocardium / Q000378:metabolism* / Q000473:pathology
chemical_list: D000597:Amino Acids, Branched-Chain; D005227:Fatty Acids
keywords: Amino acid; BCAA; Heart failure; Metabolism; Remodeling