Output-Specific Adaptation of Habenula-Midbrain Excitatory Synapses During Cocaine Withdrawal.
Détails
Télécharger: 33867967_BIB_292B7F1AE65A.pdf (1843.84 [Ko])
Etat: Public
Version: Final published version
Licence: CC BY 4.0
Etat: Public
Version: Final published version
Licence: CC BY 4.0
ID Serval
serval:BIB_292B7F1AE65A
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Output-Specific Adaptation of Habenula-Midbrain Excitatory Synapses During Cocaine Withdrawal.
Périodique
Frontiers in synaptic neuroscience
ISSN
1663-3563 (Print)
ISSN-L
1663-3563
Statut éditorial
Publié
Date de publication
2021
Peer-reviewed
Oui
Volume
13
Pages
643138
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Publication Status: epublish
Résumé
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.
Mots-clé
cocaine, glutamatergic transmission, lateral habenula, synaptic plasticity, ventral tegmental area
Pubmed
Web of science
Open Access
Oui
Création de la notice
26/04/2021 11:08
Dernière modification de la notice
23/01/2024 7:22