ArticleCardiovascular research2023
Cardiomyocyte and endothelial cells play distinct roles in the tumour necrosis factor (TNF)-dependent atrial responses and increased atrial fibrillation vulnerability induced by endurance exercise training in mice.
Article in Cardiovascular research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 22 citations in OpenAlex.
- The Immune System as a Proarrhythmic Mediator: A Novel Paradigm for the Development of New Antiarrhythmic Therapy.The Canadian journal of cardiology · 2026Review
- Atrial Fibrillation and Great Saphenous Vein Insufficiency: Exploration of Common Pathways in Hemodynamic Derangements and Systemic Inflammation.Reviews in cardiovascular medicine · 2026Review
- [Integrating Bioinformatics and Machine Learning Algorithms to Screen Inflammatory Biomarkers for Atrial Fibrillation and Experimental Validation].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2026Article
- Exploring the Potential Mechanism of Polyethylene Terephthalate Associated Cardiotoxicity through Network Toxicology and Molecular Docking.ACS omega · 2026Article
- Dose-dependent exercise promotes the transition from atrial protection to arrhythmogenic vulnerability: the intermediary role of calcium handling instability in substrate remodeling.Frontiers in physiology · 2026Article
- Exercise and Atrial Fibrillation: Current Evidence, Knowledge Gaps, and Future Directions.Reviews in cardiovascular medicine · 2025Review
- From moderate to strenuous training: unravelling mechanistic contributors and biomarkers for atrial fibrillation in exercise.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2025Article
- LncRNA Dleu2 Serve as a Novel Biomarker for Ablation Recurrence and Promote Atrial Remodelling by Targeting Nr4a1 in Atrial Fibrillation.Journal of cellular and molecular medicine · 2025Article
- Targeted intervention in obesity-associated atrial fibrosis using nanoparticle-loaded fusion protein.Apoptosis : an international journal on programmed cell death · 2025Article
- Swimming induces bone loss via regulating mechanical sensing pathways in bone marrow.Mechanobiology in medicine · 2025Article
- Matrine Inhibits the Wnt3a/β-Catenin Signalling to Attenuate Pressure Overload-Induced Atrial Remodelling and Vulnerability to Atrial Fibrillation.Journal of cellular and molecular medicine · 2025Article
- The Neutrophil-to-Lymphocyte Ratio Is an Independent Inflammatory Biomarker for Adverse Events in Patients With Atrial Fibrillation: Insights From the Murcia AF Project II (MAFP-II) Cohort Study.Clinical cardiology · 2025Article
- Heat shock proteins in atrial fibrillation: from bench to bedside.Frontiers in physiology · 2025Review
- Distinct functional and molecular profiles between physiological and pathological atrial enlargement offer potential new therapeutic opportunities for atrial fibrillation.Clinical science (London, England : 1979) · 2024Article
- Effect of physical exercise on metabolism in patients with atrial fibrillation.Frontiers in cardiovascular medicine · 2024Review
Corrections and comments
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Authors and funding
17 authors at 6 institutions in 4 countries.
Funding
Abstract
aimsEndurance exercise is associated with an increased risk of atrial fibrillation (AF). We previously established that adverse atrial remodelling and AF susceptibility induced by intense exercise in mice require the mechanosensitive and pro-inflammatory cytokine tumour necrosis factor (TNF). The cellular and mechanistic basis for these TNF-mediated effects is unknown. METHODS AND
resultsWe studied the impact of Tnf excision, in either atrial cardiomyocytes or endothelial cells (using Cre-recombinase expression controlled by Nppa or Tie2 promoters, respectively), on the cardiac responses to six weeks of intense swim exercise training. TNF ablation, in either cell type, had no impact on the changes in heart rate, autonomic tone, or left ventricular structure and function induced by exercise training. Tnf excision in atrial cardiomyocytes did, however, prevent atrial hypertrophy, fibrosis, and macrophage infiltration as well as conduction slowing and increased AF susceptibility arising from exercise training. In contrast, endothelial-specific excision only reduced the training-induced atrial hypertrophy. Consistent with these cell-specific effects of Tnf excision, inducing TNF loss from atrial cardiomyocytes prevented activation of p38MAPKinase, a strain-dependent downstream mediator of TNF signalling, without affecting the atrial stretch as assessed by atrial pressures induced by exercise. Despite TNF's established role in innate immune responses and inflammation, neither acute nor chronic exercise training caused measurable NLRP3 inflammasome activation.
conclusionsOur findings demonstrate that adverse atrial remodelling and AF vulnerability induced by intense exercise require TNF in atrial cardiomyocytes whereas the impact of endothelial-derived TNF is limited to hypertrophy modulation. The implications of the cell autonomous effects of TNF and crosstalk between cells in the atria are discussed.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.