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Characterization of Immune Cell-derived Extracellular Vesicles and Studying Functional Impact on Cell Environment
Published on: June 2, 2020
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Extracellular Vesicles Released From Cortical Neurons Influence Spontaneous Activity of Recipient Neurons
Franco Luis Lombino1,2, Mohsin Shafiq1, Andreu Matamoros-Angles1
1Institute for Neuropathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Journal of Neurochemistry
|September 15, 2025
Summary
Neurons release extracellular vesicles (EVs) that modulate brain activity. These EVs, carrying synaptic proteins, increase postsynaptic potential amplitude in recipient neurons, highlighting their role in intercellular communication.
Area of Science:
- Neuroscience
- Cell Biology
- Molecular Biology
Background:
- Extracellular vesicles (EVs) are crucial for intercellular communication, transporting molecules between cells.
- Their specific roles in the central nervous system (CNS) and neuronal activity modulation require further elucidation.
Purpose of the Study:
- To investigate the release mechanisms of EVs from neuronal cells.
- To determine the impact of neuronally derived EVs on the activity of recipient neurons.
Main Methods:
- Primary cortical neurons were cultured to study EV release.
- Proteomic analysis was performed on neuronally released EVs.
- Electrophysiological recordings assessed the effect of EVs on neuronal activity.
Main Results:
- Mature primary cortical neurons release EVs from both soma and dendrites.
- Neuronally released EVs possess characteristics similar to non-neuronal EVs and contain pre- and post-synaptic proteins.
- EVs were found to increase the amplitude of postsynaptic potentials in target neurons.
Conclusions:
- Neuronally derived EVs play a significant role in modulating synaptic activity.
- EVs contribute to neuronal communication by influencing postsynaptic potentials, potentially via glutamate receptors.
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