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Endocannabinoid signaling in synaptic function
Jose Antonio Noriega-Prieto1, Paulo Kofuji1, Alfonso Araque1
1Department of Neuroscience, University of Minnesota, Minneapolis, Minnesota, USA.
Glia
|November 21, 2022
Summary
Astrocytes sense endocannabinoids (eCBs) and release gliotransmitters to regulate neural communication. This astrocyte-neuron signaling influences synaptic plasticity and animal behavior.
Area of Science:
- Neuroscience
- Cell Biology
- Neuropharmacology
Background:
- Astrocytes are key glial cells actively regulating neuronal function through signaling.
- Endocannabinoid (eCB) signaling is vital for numerous brain functions and behaviors.
Approach:
- This review synthesizes evidence on how astrocytes detect neuronal eCBs.
- It examines the subsequent release of gliotransmitters by astrocytes and their impact on synaptic regulation.
Key Points:
- Astrocytes sense eCBs and release gliotransmitters, modulating synaptic transmission and plasticity.
- eCB signaling to astrocytes involves complex spatial, temporal, and signaling mechanisms.
- Astrocytes actively participate in spike-timing-dependent plasticity and lateral synaptic regulation.
Conclusions:
- Astrocyte-mediated eCB signaling reveals novel regulatory processes in synaptic function.
- This signaling pathway critically influences animal behavior, highlighting astrocytes' active role in brain circuits.
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