ArticleJournal of extracellular vesicles2025
Microglial Extracellular Vesicles Mediate C1q Deposition at the Pre-Synapse and Promote Synaptic Pruning.
Article in Journal of extracellular vesicles, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
7 citing papers in PubMed.
- Extracellular Vesicles in Stroke: Drivers of Brain-Body Network Crosstalk.Translational stroke research · 2026Review
- Brain targeting and trafficking of extracellular vesicles in central nervous system diseases: a therapeutic roadmap.Nanomedicine (London, England) · 2026Review
- Associations of complement proteins and immunoglobulins with cognitive impairment in type 2 diabetes mellitus: a cross-sectional study.BMC endocrine disorders · 2026Article
- Neurovascular Unit-Derived Extracellular Vesicles as Regulators of Post-Stroke Pathology and Neurorestoration.Biomolecules · 2026Review
- Alzheimer's Disease as a Disorder of Neuroimmune Dysregulation.Neurology international · 2026Review
- Microglial Extracellular Vesicles Mediate C1q Deposition at the Pre-Synapse and Promote Synaptic Pruning.Journal of extracellular vesicles · 2025Article
- Extracellular Vesicles From Multiple Sclerosis White Matter Exhibit Synaptic, Mitochondrial, Complement and Ageing-Related Pathway Dysregulation.Journal of extracellular vesicles · 2025Article
Corrections and comments
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Authors and funding
19 authors.
Funding
Abstract
C1q is released by microglia, localizes on weak synapses and acts as a tag for microglial synaptic pruning. However, how C1q tags synapses during the pruning period remains to be fully elucidated. Here, we report that C1q is delivered via extracellular vesicles by microglia to pre-synaptic sites that externalize phosphatidylserine. Using approaches to increase or reduce vesicles production in microglia, by C9orf72 knock out or pharmacological inhibition, respectively, we provided mechanistic evidence linking extracellular vesicle release to pre-synaptic remodelling in neuron-microglia cultures. In C9orf72 knockout mice, we confirmed larger production of microglial extracellular vesicles and showed augmented C1q presynaptic deposition associated with enhanced engulfment by microglia in the early postnatal hippocampus. Finally, we provide evidence that microglia physiologically release more vesicles during the period of postnatal circuit refinement. These findings implicate abnormal release of microglial extracellular vesicles in both neurodevelopmental and age-related disorders characterized by dysregulated microglia-mediated synaptic pruning.
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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.