ArticleScientific reports2025
Mastitis-related Staphylococcus aureus-derived extracellular vesicles induce a pro-inflammatory response in bovine monocyte-derived macrophages.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Bacterial Extracellular Vesicles at the Crossroads of Immune Regulation and Biofilm Dynamics: Biogenesis, Comparative Analysis, and Translational Challenges.Biomolecules · 2026Review
- Staphylococcus aureus derived extracellular vesicles modulate osteoblast-like cell immune responses independently of vesicle internalization.Scientific reports · 2026Article
- Reply: Extracellular vesicle-mediated signalling in human rescueHuman reproduction open · 2026Article
- Extracellular vesicles in dairy cattle: research progress and prospects for practical applications.Journal of animal science and biotechnology · 2025Review
- Role of CORO1A in Regulating Immune Homeostasis of Mammary Glands and Its Contribution to Clinical Mastitis Development in Dairy Cows.Biomolecules · 2025Article
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Authors and funding
6 authors.
Funding
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Abstract
Staphylococcus aureus (S. aureus) is one of the most common causative agents of mammary gland infection and mastitis, but the specific role of S. aureus-derived extracellular vesicles (SaEVs) in mastitis has been poorly studied to date. Here, we aimed to investigate the response of bovine monocyte-derived macrophages (boMdM) to SaEVs of the genotype B (GTB) mastitis-related strain M5512B. Specifically, we evaluated the effects on the actin cytoskeleton, gene expression, and the SaEV proteomic cargo. Furthermore, we assessed to what extent the cellular and molecular response of boMdM to SaEVs differed from peripheral mononuclear blood cells (PBMCs) used for in vitro derivation of the former. We observed that SaEVs induced morphological changes in boMdM, leading to a pro-inflammatory and pyroptosis-related increased gene expression. Additionally, our study revealed that boMdM and PBMCs exhibited stimulus-specific differing responses. The proteomic analysis of SaEVs identified clusters of proteins related to virulence and antibiotic resistance, supporting the theory that S. aureus might use EVs to evade host defences and colonize the mammary gland. Our results bring new insights into how SaEVs might impact the host during an S. aureus infection, which can be useful for future S. aureus vaccine development.
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