Abstract:
:Substance abuse disorders are linked to alteration of circadian rhythms, although the molecular and neuronal pathways implicated have not been fully elucidated. Addictive drugs, such as cocaine, induce a rapid increase of dopamine levels in the brain. Here, we show that acute administration of cocaine triggers reprogramming in circadian gene expression in the striatum, an area involved in psychomotor and rewarding effects of drugs. This process involves the activation of peroxisome protein activator receptor gamma (PPARγ), a nuclear receptor involved in inflammatory responses. PPARγ reprogramming is altered in mice with cell-specific ablation of the dopamine D2 receptor (D2R) in the striatal medium spiny neurons (MSNs) (iMSN-D2RKO). Administration of a specific PPARγ agonist in iMSN-D2RKO mice elicits substantial rescue of cocaine-dependent control of circadian genes. These findings have potential implications for development of strategies to treat substance abuse disorders.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Brami-Cherrier K,Lewis RG,Cervantes M,Liu Y,Tognini P,Baldi P,Sassone-Corsi P,Borrelli Edoi
10.1038/s41467-020-18200-6subject
Has Abstractpub_date
2020-09-07 00:00:00pages
4448issue
1issn
2041-1723pii
10.1038/s41467-020-18200-6journal_volume
11pub_type
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