ArticleInternational journal of molecular sciences2025
Extracellular Vesicle Mitochondrial DNA Reflects Podocyte Mitochondrial Stress and Is Associated with Relapse in Nephrotic Syndrome.
Article in International journal of molecular sciences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Mitochondrial extracellular vesicles in cardiorenal syndrome: emerging mediators of mitochondrial signaling and inter-organ crosstalk.Renal failure · 2026Review
- Secretion of Extracellular Vesicles Into the Mesenteric Lymph During Fasting and Lipid Absorption.Journal of extracellular biology · 2026Article
- Rab27: Molecular switch of tumor exosome secretion (Review).International journal of molecular medicine · 2026Review
- The dynamic trajectory of circulating exosome components in high-fat diet-induced metabolic-associated steatotic liver disease and its modulation by curcuminoids.Frontiers in endocrinology · 2026Article
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11 authors.
Funding
Abstract
Idiopathic childhood nephrotic syndrome is a common glomerulopathy comprising proteinuria, hypoalbuminemia, and edema. Podocyte dysfunction is central to this disease process. Extracellular vesicles are released from stressed cells and can represent a molecular snapshot of the parent cell of origin. We previously showed that urinary large extracellular vesicles (LEVs) derived from podocytes are increased in patients with nephrotic syndrome relapse. Here, we investigated the role of mitochondrial DNA (mtDNA) within LEVs both in vitro and in vivo, revealing the novel finding that podocytes release LEVs containing mtDNA, driven by mitochondrial stress. A puromycin aminonucleoside nephrosis rat model showed foot process effacement on electron microscopy and urinary LEVs with significantly increased mtDNA. Prednisolone, which drives remission in nephrotic syndrome in children, attenuated mitochondrial stress and reduced the amount of mtDNA content within LEVs in vitro. Lastly, urinary LEVs from children with nephrotic syndrome also contain mtDNA, and it is the podocyte LEV-fraction which is preferentially enriched. Overall, these data support a potential mechanism of podocyte mitochondrial stress in non-genetic, idiopathic pediatric nephrotic syndrome.
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