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充血性心力衰竭

科研文章

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Lifestyle Modifications for Preventing and Treating Heart Failure The Evolution of β-Blockers in Coronary Artery Disease and Heart Failure (Part 1/5) 2021 ACC/AHA Key Data Elements and Definitions for Heart Failure: A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Data Standards (Writing Committee to Develop Clinical Data Standards for Heart Failure) Association of Reduced Apical Untwisting With Incident HF in Asymptomatic Patients With HF Risk Factors Economic and Quality-of-Life Outcomes of Natriuretic Peptide–Guided Therapy for Heart Failure The conductive function of biopolymer corrects myocardial scar conduction blockage and resynchronizes contraction to prevent heart failure Dapagliflozin for treating chronic heart failure with reduced ejection fraction Cardiac and Kidney Benefits of Empagliflozin in Heart Failure Across the Spectrum of Kidney Function: Insights From EMPEROR-Reduced 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure: A Report of the American College of Cardiology/American Heart Association Joint Committee on Clinical Practice Guidelines INTERMACS Profiles and Outcomes Among Non–Inotrope-Dependent Outpatients With Heart Failure and Reduced Ejection Fraction

Original Research2020 Dec 11;S1550-4131(20)30658-6.

JOURNAL:Cell Metab. Article Link

The pyruvate-lactate axis modulates cardiac hypertrophy and heart failure

AA Cluntun, R Badolia, SG Drakos et al. Keywords: LVAD; MCT4; MPC; VB124; cardiac metabolism; heart failure; hypertrophy; lactate; mitochondria; pyruvate

ABSTRACT

The metabolic rewiring of cardiomyocytes is a widely accepted hallmark of heart failure (HF). These metabolic changes include a decrease in mitochondrial pyruvate oxidation and an increased export of lactate. We identify the mitochondrial pyruvate carrier (MPC) and the cellular lactate exporter monocarboxylate transporter 4 (MCT4) as pivotal nodes in this metabolic axis. We observed that cardiac assist device-induced myocardial recovery in chronic HF patients was coincident with increased myocardial expression of the MPC. Moreover, the genetic ablation of the MPC in cultured cardiomyocytes and in adult murine hearts was sufficient to induce hypertrophy and HF. Conversely, MPC overexpression attenuated drug-induced hypertrophy in a cell-autonomous manner. We also introduced a novel, highly potent MCT4 inhibitor that mitigated hypertrophy in cultured cardiomyocytes and in mice. Together, we find that alteration of the pyruvate-lactate axis is a fundamental and early feature of cardiac hypertrophy and failure.