ArticleNature communications2018
Reciprocal control of excitatory synapse numbers by Wnt and Wnt inhibitor PRR7 secreted on exosomes.
Article in Nature communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
40 citing papers in PubMed, 62 citations in OpenAlex.
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- Exosome-Mediated Systemic Signaling: Mechanisms, Disease Integration, and Translational Potential.Current issues in molecular biology · 2026Review
- Exosomes in Amyloid Propagation-Roles in Neurodegeneration.Molecular neurobiology · 2026Review
- Neuron-Derived Extracellular Vesicles: Emerging Regulators in Central Nervous System Disease Progression.Molecular neurobiology · 2025Review
- Transcriptomic Insights into Late-Life Depression and the Role of Environmental Drinking Water Composition: A Study on 18-Month-Old Mice.International journal of molecular sciences · 2025Article
- Plasma circulating extracellular vesicles reveal dysregulation of synaptic signaling in SHIV-infected rhesus macaque.Cell communication and signaling : CCS · 2025Article
- Extracellular Vesicles-Dependent Secretion Regulates Intracellular CYFIP2 Protein Homeostasis in Cortical Neurons.Biomedicines · 2025Article
- Comparative Single-Cell Transcriptome Analysis of c-Met Receptor Expressing and Non-Expressing Projection Neurons in the Developing Frontal and Visual Cortices.Developmental neuroscience · 2025Article
- Morphogens and Cell-Derived Structures (Exosomes and Cytonemes) as Components of the Communication Between Cells.International journal of molecular sciences · 2025Review
- Targeting Wnt-driven metabolic adaptations in cancer: integrating glycolysis, glutaminolysis, IDO1-mediated immune evasion, and therapeutic delivery strategies.Frontiers in cell and developmental biology · 2025Review
- ESCRT disruption provides evidence against trans-synaptic signaling via extracellular vesicles.The Journal of cell biology · 2024Article
- Extracellular vesicles carry transcriptional 'dark matter' revealing tissue-specific information.Journal of extracellular vesicles · 2024Article
- ESCRT disruption provides evidence against transsynaptic signaling functions for extracellular vesicles.bioRxiv : the preprint server for biology · 2024Article
- Extracellular Vesicles in the Central Nervous System: A Novel Mechanism of Neuronal Cell Communication.International journal of molecular sciences · 2024Review
- Exosomes: new targets for understanding axon guidance in the developing central nervous system.Frontiers in cell and developmental biology · 2024Review
- Progress in cancer neuroscience.MedComm · 2023Review
- Neuron-derived extracellular vesicles contain synaptic proteins, promote spine formation, activate TrkB-mediated signalling and preserve neuronal complexity.Journal of extracellular vesicles · 2023Article
- The potential value of exosomes as adjuvants for novel biologic local anesthetics.Frontiers in pharmacology · 2023Review
- Inter-neuronal signaling mediated by small extracellular vesicles: wireless communication?Frontiers in molecular neuroscience · 2023Review
- Extracellular vesicles and Alzheimer's disease in the novel era of Precision Medicine: implications for disease progression, diagnosis and treatment.Experimental neurology · 2022Review
Corrections and comments
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Authors and funding
11 authors at 5 institutions in 2 countries.
Funding
Abstract
Secreted Wnts play crucial roles in synaptogenesis and synapse maintenance, but endogenous factors promoting synapse elimination in central neurons remain unknown. Here we show that proline-rich 7 (PRR7) induces specific removal of excitatory synapses and acts as a Wnt inhibitor. Remarkably, transmembrane protein PRR7 is activity-dependently released by neurons via exosomes. Exosomal PRR7 is uptaken by neurons through membrane fusion and eliminates excitatory synapses in neighboring neurons. Conversely, PRR7 knockdown in sparse neurons greatly increases excitatory synapse numbers in all surrounding neurons. These non-cell autonomous effects of PRR7 are effectively negated by augmentation or blockade of Wnt signaling. PRR7 exerts its effect by blocking the exosomal secretion of Wnts, activation of GSK3β, and promoting proteasomal degradation of PSD proteins. These data uncover a proximity-dependent, reciprocal mechanism for the regulation of excitatory synapse numbers in local neurons and demonstrate the significance of exosomes in inter-neuronal signaling in the vertebrate brain.
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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.