Cited by 52Neurotransmitter Receptor Influence on BehaviorGene Regulatory Network AnalysisSubstance Abuse Treatment and Outcomes

Identifying candidate drivers of alcohol dependence-induced excessive drinking by assembly and interrogation of brain-specific regulatory networks

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Repunte-Canonigo, Vez, Shin, William, Vendruscolo, Leandro F, Lefebvre, Celine, van der Stap, Lena, Kawamura, Tomoya, Schlosburg, Joel E, Alvarez, Mariano +3 more·2015·Genome Biology

Abstract

Background: A systems biology approach based on the assembly and interrogation of gene regulatory networks, or interactomes, was used to study neuroadaptation processes associated with the transition to alcohol dependence at the molecular level. Results: Using a rat model of dependent and non-dependent alcohol self-administration, we reverse engineered a global transcriptional regulatory network during protracted abstinence, a period when relapse rates are highest. We then interrogated the network to identify master regulator genes that mechanistically regulate brain region-specific signatures associated with dependent and non-dependent alcohol self-administration. Among these, the gene coding for the glucocorticoid receptor was independently identified as a master regulator in multiple brain regions, including the medial prefrontal cortex, nucleus accumbens, central nucleus of the amygdala, and ventral tegmental area, consistent with the view that brain reward and stress systems are dysregulated during protracted abstinence. Administration of the glucocorticoid antagonist mifepristone in either the nucleus accumbens or ventral tegmental area selectively decreased dependent, excessive, alcohol self-administration in rats but had no effect on non-dependent, moderate, alcohol self-administration. Conclusions: Our study suggests that assembly and analysis of regulatory networks is an effective strategy for the identification of key regulators of long-term neuroplastic changes within specific brain regions that play a functional role in alcohol dependence. More specifically, our results support a key role for regulatory networks downstream of the glucocorticoid receptor in excessive alcohol drinking during protracted alcohol abstinence.

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  1. [50]Expression profiling of brain structures of dependent and non-dependent rats self-administering alcohol and naive controls. NCBI Gene Expression Omnibus. See http://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE60966.

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Authors
Repunte-Canonigo, V., Shin, W., Vendruscolo, L. F., Lefebvre, C., van der Stap, L., Kawamura, T., Schlosburg, J. E., Alvarez, M., Koob, G. F., Califano, A., & Sanna, P. P.
Affiliations
  • Herbert Irving Comprehensive Cancer Center (US)
  • Scripps Research Institute (US)
  • Columbia University Irving Medical Center (US)
Corresponding author
  • Califano, Andrea
  • Sanna, Pietro Paolo
Venue
Genome Biology
Published
2015-02-02
Volume
16
Issue
1
Pages
68-68
ISSN
1465-6906 (ISSN-L)
OpenAlex
W2129957034
Cited by
52
References
52
Citations by year
2026: 2 · 2025: 4 · 2024: 2 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 7 · 2019: 4 · 2018: 8 · 2017: 2 · 2016: 6 · 2015: 3
FWCI
2.95
Type
journal article
Language
en
Open access
Locations
  • Genome biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Columbia Academic Commons (Columbia University)
Funders
  • National Institutes of Health (CA121852, AA017371, AA020960)
  • National Institute on Alcohol Abuse and Alcoholism (R01AA017371, AA021667, R01AA021667, AA017371, AA020960, U01AA020960)
  • National Heart, Lung, and Blood Institute (HL111566, U01HL111566)
  • National Institute on Drug Abuse (R01DA013821, DA013821)
  • National Cancer Institute (U54CA121852, U01CA168426, CA121852-09, CA1968426)
  • National Institute on Deafness and Other Communication Disorders
  • National Institute of General Medical Sciences (GM085659, R01GM085659, T32GM008798)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
alcoholism, excessive alcohol drinking, gene regulatory networks, transcriptional regulatory networks, glucocorticoid receptor, mifepristone, protracted abstinence, relapse, alcohol self-administration, brain reward system, stress system, medial prefrontal cortex, nucleus accumbens, central amygdala, ventral tegmental area, neural adaptation
MeSH terms
Ethanol, Alcoholism, Algorithms, Animals, Brain, Genes, Regulator, Hormone Antagonists, Receptors, Glucocorticoid, Self Administration, Mifepristone, Rats, Gene Regulatory Networks

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