CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

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) Empagliflozin and Progression of Kidney Disease in Type 2 Diabetes Online Quantitative Aortographic Assessment of Aortic Regurgitation After TAVR: Results of the OVAL Study High-risk plaque detected on coronary CT angiography predicts acute coronary syndromes independent of significant stenosis in acute chest pain: results from the ROMICAT-II trial 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 Long-term outcome of prosthesis-patient mismatch after transcatheter aortic valve replacement Third-Generation Balloon and Self-Expandable Valves for Aortic Stenosis in Large and Extra-Large Aortic Annuli From the TAVR-LARGE Registry Colchicine Reduces Cardiovascular Events in Chronic Coronary Disease Utility of intravascular ultrasound guidance in patients undergoing percutaneous coronary intervention for type C lesions Intravascular ultrasound-guided drug-eluting stent implantation: An updated meta-analysis of randomized control trials and observational studies

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.