ArticleJournal of extracellular vesicles2020
Characterization of brain-derived extracellular vesicles reveals changes in cellular origin after stroke and enrichment of the prion protein with a potential role in cellular uptake.
Article in Journal of extracellular vesicles, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.
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Who cites it
69 citing papers in PubMed, 116 citations in OpenAlex.
- Circulating Microglia-derived Extracellular Vesicles Predict Recovery After Rehabilitation in Stroke Survivors.Translational stroke research · 2026Trial
- Markers and Enrichment Strategies for Brain-Derived Extracellular Vesicles: Current Evidence, Limitations and Future Directions.Neuromolecular medicine · 2026Review
- Penumbra-derived small extracellular vesicles carry pathogenic RNA driving remote damage after cortical infarction.Brain : a journal of neurology · 2026Article
- Shear-Activated von Willebrand Factor Captures Extracellular Vesicles to Promote Platelet Activation and Metastasis.Journal of extracellular vesicles · 2026Article
- The New Spine of Access to the Brain's Secrets: Extracellular Vesicles from Cerebrospinal Fluid Liquid Biopsies in CNS Diseases and Blood-Brain Barrier Research.Molecular neurobiology · 2026Review
- Extracellular Vesicles in Stroke: Drivers of Brain-Body Network Crosstalk.Translational stroke research · 2026Review
- Tissue derived extracellular vesicles advance from disease mechanisms to clinical application.Discover nano · 2026Review
- Immunoaffinity-Based Protocol to Enrich Nervous System Cell-, Lung Alveolar Cell-, and Hepatocyte-Derived Extracellular Vesicles From Human Plasma.Journal of extracellular biology · 2026Article
- Increased circulating TREM2Brain, behavior, & immunity - health · 2026Article
- ADAM10-Mediated Proteolytic Remodelling of Signalling and Adhesion Proteins on Brain Cell-Derived Small Extracellular Vesicles.Journal of extracellular biology · 2026Article
- Microglial NCAM1 attenuates ischemic brain injury by inhibiting NF-κB-driven neuroinflammation through IκBα stabilization.Journal of neuroinflammation · 2026Article
- Tissue-derived extracellular vesicles: comparing Ts-EVs and Te-EVs in extraction, characteristics and research trends.Cancer cell international · 2026Review
- Targeting DNA Damage and Repair Pathways in Cerebral Ischemic Stroke: From Bench to Bedside.Translational stroke research · 2026Review
- Assessing the Nature of Human Brain-Derived Extracellular Vesicles on Synaptic Activity Via the Development of an Air-liquid Microfluidic Platform.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Direct SERS profiling of small extracellular vesicles in cerebrospinal fluid for pediatric medulloblastoma detection and treatment monitoring.Analytical and bioanalytical chemistry · 2025Article
- Recommendations for Studying In Situ Extracellular Vesicles From Solid Tissue.Journal of extracellular vesicles · 2025Article
- Glycolytic Enzyme HK2 Phosphorylates nSMase1 to Promote Astrocytic Exosomes Biogenesis Contributing to Acute Ischemic Stroke Injury.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Extracellular Vesicles Released From Cortical Neurons Influence Spontaneous Activity of Recipient Neurons.Journal of neurochemistry · 2025Article
- Changes in Neuroimmunological Synapses During Cerebral Ischemia.Translational stroke research · 2025Review
- Extracellular particles: emerging insights into central nervous system diseases.Journal of nanobiotechnology · 2025Review
9 more citing papers are in PubMed but not listed here.
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Authors and funding
13 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extracellular vesicles (EVs) are important means of intercellular communication and a potent tool for regenerative therapy. In ischaemic stroke, transient blockage of a brain artery leads to a lack of glucose and oxygen in the affected brain tissue, provoking neuronal death by necrosis in the core of the ischaemic region. The fate of neurons in the surrounding penumbra region depends on the stimuli, including EVs, received during the following hours. A detailed characterization of such stimuli is crucial not only for understanding stroke pathophysiology but also for new therapeutic interventions. In the present study, we characterize the EVs in mouse brain under physiological conditions and 24 h after induction of transient ischaemia in mice. We show that, in steady-state conditions, microglia are the main source of small EVs (sEVs), whereas after ischaemia the main sEV population originates from astrocytes. Brain sEVs presented high amounts of the prion protein (PrP), which were further increased after stroke. Moreover, EVs were enriched in a proteolytically truncated PrP fragment (PrP-C1). Because of similarities between PrP-C1 and certain viral surface proteins, we studied the cellular uptake of brain-derived sEVs from mice lacking (PrP-KO) or expressing PrP (WT). We show that PrP-KO-sEVs are taken up significantly faster and more efficiently than WT-EVs by primary neurons. Furthermore, microglia and astrocytes engulf PrP-KO-sEVs more readily than WT-sEVs. Our results provide novel information on the relative contribution of brain cell types to the sEV pool in murine brain and indicate that increased release of sEVs by astrocytes together with elevated levels of PrP in sEVs may play a role in intercellular communication at early stages after stroke. In addition, amounts of PrP (and probably PrP-C1) in brain sEVs seem to contribute to regulating their cellular uptake.
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Registered trials
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 OpenQuestion graph.