ArticleFrontiers in immunology2024
Therapeutic effects of platelet-derived extracellular vesicles on viral myocarditis correlate with biomolecular content.
Article in Frontiers in immunology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Small Extracellular Vesicles in Cardioprotection, Cardiac Repair, and Regeneration: Cargo Mechanisms, Producer Cell Sources, and Translational Development.Biomedicines · 2026Review
- Antiviral innate immunity in myocarditis: mechanisms and emerging therapeutics.Experimental & molecular medicine · 2026Review
- Integrative Approaches to Treating Cellular Senescence in Kidney Disease.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- Transcatheter Intra-Arterial Delivery of a Platelet-Derived Extracellular Vesicle-Enriched Preparation for Attenuating Skeletal Muscle Ischaemia-Reperfusion Injury in a Rodent Forelimb Model.Journal of extracellular vesicles · 2026Article
- A Purified Platelet-Derived Exosome Product for Chronic Wound Healing: A Novel Therapeutic Strategy and Next-Generation Delivery Platform.Pharmaceutics · 2026Review
- Toll-like receptors in infectious myocarditis: pathogen-specific recognition, spatiotemporal dynamic regulation and clinical translation.Frontiers in cardiovascular medicine · 2026Review
- A therapeutic-grade purified exosome system alleviates osteoarthritis by regulating autophagy through the BCL2-Beclin1 axis.Journal of nanobiotechnology · 2025Article
Corrections and comments
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Authors and funding
26 authors.
Funding
Abstract
Introduction: Extracellular vesicles (EVs) can potently inhibit inflammation yet there is a lack of understanding about the impact of donor characteristics on the efficacy of EVs. The goal of this study was to determine whether the sex and age of donor platelet-derived EVs (PEV) affected their ability to inhibit viral myocarditis. Methods: PEV, isolated from men and women of all ages, was compared to PEV obtained from women under 50 years of age, which we termed premenopausal PEV (pmPEV). Because of the protective effect of estrogen against myocardial inflammation, we hypothesized that pmPEV would be more effective than PEV at inhibiting myocarditis. We injected PEV, pmPEV, or vehicle control in a mouse model of viral myocarditis and examined histology, gene expression, protein profiles, and performed proteome and microRNA (miR) sequencing of EVs. Results: We found that both PEV and pmPEV significantly inhibited myocarditis; however, PEV was more effective, which was confirmed by a greater reduction of inflammatory cells and proinflammatory and profibrotic markers determined using gene expression and immunohistochemistry. Proteome and miR sequencing of EVs revealed that PEV miRs specifically targeted antiviral, Toll-like receptor (TLR)4, and inflammasome pathways known to contribute to myocarditis while pmPEV contained general immunoregulatory miRs. Discussion: These differences in EV content corresponded to the differing anti-inflammatory effects of the two types of EVs on viral myocarditis.
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