CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

P2Y12 Inhibitor Monotherapy with Clopidogrel Versus Ticagrelor in Patients with Acute Coronary Syndrome Undergoing Percutaneous Coronary Intervention Positive remodeling at 3 year follow up is associated with plaque-free coronary wall segment at baseline: a serial IVUS study Risk of Coronary Obstruction and Feasibility of Coronary Access After Repeat Transcatheter Aortic Valve Replacement With the Self-Expanding Evolut Valve: A Computed Tomography Simulation Study Effect of the PCSK9 Inhibitor Evolocumab on Total Cardiovascular Events in Patients With Cardiovascular DiseaseA Prespecified Analysis From the FOURIER Trial Baseline Characteristics and Risk Profiles of Participants in the ISCHEMIA Randomized Clinical Trial Randomized study to evaluate sirolimus-eluting stents implanted at coronary bifurcation lesions Comparison of newer generation self-expandable vs. balloon-expandable valves in transcatheter aortic valve implantation: the randomized SOLVE-TAVI trial High-Risk Coronary Plaque Regression After Intensive Lifestyle Intervention in Nonbstructive Coronary Disease: A Randomized Study A Prospective, Multicenter, Randomized, Open-label Trial to Compare Efficacy and Safety of Clopidogrel vs. Ticagrelor in Stabilized Patients with Acute Myocardial Infarction after Percutan eous Coronary Intervention: rationale and design of the TALOS-AMI trial 2021 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure

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.