Cited by 35Neurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology ResearchNuclear Receptors and Signaling

A Role for Peroxisome Proliferator-Activated Receptor Gamma Coactivator-1α in Nucleus Accumbens Neuron Subtypes in Cocaine Action

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Chandra, Ramesh, Engeln, Michel, Francis, T. Chase, Konkalmatt, Prasad, Patel, Dipal, Lobo, Mary Kay·2017·Biological Psychiatry

Abstract

Background Molecules critically involved in cocaine behavioral plasticity are known to regulate and interact with peroxisome proliferator-activated receptor gamma coactivator-1α (PGC-1α). In addition, the PGC-1α promoter has binding sites for early growth response 3 (Egr3), which plays a dynamic role in cocaine action in nucleus accumbens (NAc) medium spiny neuron (MSN) subtypes, those enriched in dopamine receptor D 1 (D1-MSN) versus D 2 (D2-MSN). However, the role of PGC-1α in NAc in cocaine action is unknown.Methods PGC-1α messenger RNA and protein were examined in NAc after repeated cocaine exposure. Binding of Egr3 to and histone methylation at the PGC-1α promoter was examined in NAc using chromatin immunoprecipitation after repeated cocaine. PGC-1α ribosome-associated messenger RNA in MSN subtypes was assessed after repeated cocaine using D1-Cre-RiboTag and D2-Cre-RiboTag lines. Finally, PGC-1α was expressed in NAc D1-MSNs versus D2-MSNs using a Cre-inducible adeno-associated virus and Cre lines during cocaine conditioned place preference and cocaine-induced locomotion.Results Repeated cocaine increased PGC-1α levels and increased Egr3 binding and H3K4me3 at the PGC-1α promoter in NAc. Increased PGC-1α occurred in D1-MSNs, while D2-MSNs showed reduced levels. Viral-mediated expression of PGC-1α in D1-MSNs enhanced behavioral responses to cocaine, while expression in D2-MSNs blunted these behaviors.Conclusions We demonstrate a novel role for PGC-1α in NAc in cocaine action. PGC-1α is enhanced in NAc D1-MSNs, specifically after cocaine exposure. These data are consistent with increased active methylation and Egr3 binding at the PGC-1α promoter. Finally, we demonstrate a bidirectional role for PGC-1α in mediating behavioral plasticity to cocaine through D1-MSNs versus D2-MSNs.

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Authors
Chandra, R., Engeln, M., Francis, T. C., Konkalmatt, P., Patel, D., & Lobo, M. K.
Affiliations
  • University of Maryland, Baltimore (US)
  • George Washington University (US)
Corresponding author
Lobo, Mary Kay
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2017-04
Volume
81
Issue
7
Pages
564-572
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2543609654
Cited by
35
References
46
Citations by year
2026: 2 · 2025: 4 · 2024: 2 · 2023: 1 · 2022: 4 · 2021: 11 · 2020: 3 · 2019: 5 · 2018: 2 · 2017: 1
FWCI
1.50
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Drug Abuse (R01DA038613)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
Keywords
PGC-1α, nucleus accumbens, medium spiny neurons, cocaine, dopamine D1 receptor, dopamine D2 receptor, EGR3, H3K4me3, histone methylation, cocaine conditioned place preference, behavioral plasticity, gene expression regulation
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Animals, Cocaine, Histones, Male, Methylation, Mice, Inbred C57BL, Mice, Transgenic, Neurons, Nucleus Accumbens, Promoter Regions, Genetic, RNA, Messenger, Receptors, Dopamine D1, Receptors, Dopamine D2, Mice, Early Growth Response Protein 3

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