Output-Specific Adaptation of Habenula-Midbrain Excitatory Synapses During Cocaine Withdrawal.

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License: CC BY 4.0
Serval ID
serval:BIB_292B7F1AE65A
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Output-Specific Adaptation of Habenula-Midbrain Excitatory Synapses During Cocaine Withdrawal.
Journal
Frontiers in synaptic neuroscience
Author(s)
Clerke J., Preston-Ferrer P., Zouridis I.S., Tissot A., Batti L., Voigt F.F., Pagès S., Burgalossi A., Mameli M.
ISSN
1663-3563 (Print)
ISSN-L
1663-3563
Publication state
Published
Issued date
2021
Peer-reviewed
Oui
Volume
13
Pages
643138
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Projections from the lateral habenula (LHb) control ventral tegmental area (VTA) neuronal populations' activity and both nuclei shape the pathological behaviors emerging during cocaine withdrawal. However, it is unknown whether cocaine withdrawal modulates LHb neurotransmission onto subsets of VTA neurons that are part of distinct neuronal circuits. Here we show that, in mice, cocaine withdrawal, drives discrete and opposing synaptic adaptations at LHb inputs onto VTA neurons defined by their output synaptic connectivity. LHb axons innervate the medial aspect of VTA, release glutamate and synapse on to dopamine and non-dopamine neuronal populations. VTA neurons receiving LHb inputs project their axons to medial prefrontal cortex (mPFC), nucleus accumbens (NAc), and lateral hypothalamus (LH). While cocaine withdrawal increases glutamate release from LHb onto VTA-mPFC projectors, it reduces presynaptic release onto VTA-NAc projectors, leaving LHb synapses onto VTA-to-LH unaffected. Altogether, cocaine withdrawal promotes distinct adaptations at identified LHb-to-VTA circuits, which provide a framework for understanding the circuit basis of the negative states emerging during abstinence of drug intake.
Keywords
cocaine, glutamatergic transmission, lateral habenula, synaptic plasticity, ventral tegmental area
Pubmed
Web of science
Open Access
Yes
Create date
26/04/2021 11:08
Last modification date
23/01/2024 7:22
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