The allostatic impact of chronic ethanol on gene expression

A genetic analysis of chronic intermittent ethanol treatment in the BXD cohort

Andrew D. van der Vaart, Jennifer T. Wolstenholme, Maren L. Smith, Guy M. Harris, Marcelo F. Lopez, Aaron Wolen, Howard C. Becker, Robert Williams, Michael F. Miles

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The transition from acute to chronic ethanol exposure leads to lasting behavioral and physiological changes such as increased consumption, dependence, and withdrawal. Changes in brain gene expression are hypothesized to underlie these adaptive responses to ethanol. Previous studies on acute ethanol identified genetic variation in brain gene expression networks and behavioral responses to ethanol across the BXD panel of recombinant inbred mice. In this work, we have performed the first joint genetic and genomic analysis of transcriptome shifts in response to chronic intermittent ethanol (CIE) by vapor chamber exposure in a BXD cohort. CIE treatment is known to produce significant and sustained changes in ethanol consumption with repeated cycles of ethanol vapor. Using Affymetrix microarray analysis of prefrontal cortex (PFC) and nucleus accumbens (NAC) RNA, we compared CIE expression responses to those seen following acute ethanol treatment, and to voluntary ethanol consumption. Gene expression changes in PFC and NAC after CIE overlapped significantly across brain regions and with previously published expression following acute ethanol. Genes highly modulated by CIE were enriched for specific biological processes including synaptic transmission, neuron ensheathment, intracellular signaling, and neuronal projection development. Expression quantitative trait locus (eQTL) analyses identified genomic loci associated with ethanol-induced transcriptional changes with largely distinct loci identified between brain regions. Correlating CIE-regulated genes to ethanol consumption data identified specific genes highly associated with variation in the increase in drinking seen with repeated cycles of CIE. In particular, multiple myelin-related genes were identified. Furthermore, genetic variance in or near dynamin3 (Dnm3) on Chr1 at ∼164 Mb may have a major regulatory role in CIE-responsive gene expression. Dnm3 expression correlates significantly with ethanol consumption, is contained in a highly ranked functional group of CIE-regulated genes in the NAC, and has a cis-eQTL within a genomic region linked with multiple CIE-responsive genes.

Original languageEnglish (US)
Pages (from-to)93-106
Number of pages14
JournalAlcohol
Volume58
DOIs
StatePublished - Feb 1 2017

Fingerprint

Gene expression
Ethanol
brain
Gene Expression
Genes
chamber
withdrawal
projection
Brain
Nucleus Accumbens
Quantitative Trait Loci
Prefrontal Cortex
Group
Vapors
Biological Phenomena
Gene Regulatory Networks
Gene Expression Profiling

All Science Journal Classification (ASJC) codes

  • Health(social science)
  • Biochemistry
  • Toxicology
  • Neurology
  • Behavioral Neuroscience

Cite this

The allostatic impact of chronic ethanol on gene expression : A genetic analysis of chronic intermittent ethanol treatment in the BXD cohort. / van der Vaart, Andrew D.; Wolstenholme, Jennifer T.; Smith, Maren L.; Harris, Guy M.; Lopez, Marcelo F.; Wolen, Aaron; Becker, Howard C.; Williams, Robert; Miles, Michael F.

In: Alcohol, Vol. 58, 01.02.2017, p. 93-106.

Research output: Contribution to journalArticle

van der Vaart, Andrew D. ; Wolstenholme, Jennifer T. ; Smith, Maren L. ; Harris, Guy M. ; Lopez, Marcelo F. ; Wolen, Aaron ; Becker, Howard C. ; Williams, Robert ; Miles, Michael F. / The allostatic impact of chronic ethanol on gene expression : A genetic analysis of chronic intermittent ethanol treatment in the BXD cohort. In: Alcohol. 2017 ; Vol. 58. pp. 93-106.
@article{d2876969e7424139bc28033fda101945,
title = "The allostatic impact of chronic ethanol on gene expression: A genetic analysis of chronic intermittent ethanol treatment in the BXD cohort",
abstract = "The transition from acute to chronic ethanol exposure leads to lasting behavioral and physiological changes such as increased consumption, dependence, and withdrawal. Changes in brain gene expression are hypothesized to underlie these adaptive responses to ethanol. Previous studies on acute ethanol identified genetic variation in brain gene expression networks and behavioral responses to ethanol across the BXD panel of recombinant inbred mice. In this work, we have performed the first joint genetic and genomic analysis of transcriptome shifts in response to chronic intermittent ethanol (CIE) by vapor chamber exposure in a BXD cohort. CIE treatment is known to produce significant and sustained changes in ethanol consumption with repeated cycles of ethanol vapor. Using Affymetrix microarray analysis of prefrontal cortex (PFC) and nucleus accumbens (NAC) RNA, we compared CIE expression responses to those seen following acute ethanol treatment, and to voluntary ethanol consumption. Gene expression changes in PFC and NAC after CIE overlapped significantly across brain regions and with previously published expression following acute ethanol. Genes highly modulated by CIE were enriched for specific biological processes including synaptic transmission, neuron ensheathment, intracellular signaling, and neuronal projection development. Expression quantitative trait locus (eQTL) analyses identified genomic loci associated with ethanol-induced transcriptional changes with largely distinct loci identified between brain regions. Correlating CIE-regulated genes to ethanol consumption data identified specific genes highly associated with variation in the increase in drinking seen with repeated cycles of CIE. In particular, multiple myelin-related genes were identified. Furthermore, genetic variance in or near dynamin3 (Dnm3) on Chr1 at ∼164 Mb may have a major regulatory role in CIE-responsive gene expression. Dnm3 expression correlates significantly with ethanol consumption, is contained in a highly ranked functional group of CIE-regulated genes in the NAC, and has a cis-eQTL within a genomic region linked with multiple CIE-responsive genes.",
author = "{van der Vaart}, {Andrew D.} and Wolstenholme, {Jennifer T.} and Smith, {Maren L.} and Harris, {Guy M.} and Lopez, {Marcelo F.} and Aaron Wolen and Becker, {Howard C.} and Robert Williams and Miles, {Michael F.}",
year = "2017",
month = "2",
day = "1",
doi = "10.1016/j.alcohol.2016.07.010",
language = "English (US)",
volume = "58",
pages = "93--106",
journal = "Alcohol",
issn = "0741-8329",
publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - The allostatic impact of chronic ethanol on gene expression

T2 - A genetic analysis of chronic intermittent ethanol treatment in the BXD cohort

AU - van der Vaart, Andrew D.

AU - Wolstenholme, Jennifer T.

AU - Smith, Maren L.

AU - Harris, Guy M.

AU - Lopez, Marcelo F.

AU - Wolen, Aaron

AU - Becker, Howard C.

AU - Williams, Robert

AU - Miles, Michael F.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - The transition from acute to chronic ethanol exposure leads to lasting behavioral and physiological changes such as increased consumption, dependence, and withdrawal. Changes in brain gene expression are hypothesized to underlie these adaptive responses to ethanol. Previous studies on acute ethanol identified genetic variation in brain gene expression networks and behavioral responses to ethanol across the BXD panel of recombinant inbred mice. In this work, we have performed the first joint genetic and genomic analysis of transcriptome shifts in response to chronic intermittent ethanol (CIE) by vapor chamber exposure in a BXD cohort. CIE treatment is known to produce significant and sustained changes in ethanol consumption with repeated cycles of ethanol vapor. Using Affymetrix microarray analysis of prefrontal cortex (PFC) and nucleus accumbens (NAC) RNA, we compared CIE expression responses to those seen following acute ethanol treatment, and to voluntary ethanol consumption. Gene expression changes in PFC and NAC after CIE overlapped significantly across brain regions and with previously published expression following acute ethanol. Genes highly modulated by CIE were enriched for specific biological processes including synaptic transmission, neuron ensheathment, intracellular signaling, and neuronal projection development. Expression quantitative trait locus (eQTL) analyses identified genomic loci associated with ethanol-induced transcriptional changes with largely distinct loci identified between brain regions. Correlating CIE-regulated genes to ethanol consumption data identified specific genes highly associated with variation in the increase in drinking seen with repeated cycles of CIE. In particular, multiple myelin-related genes were identified. Furthermore, genetic variance in or near dynamin3 (Dnm3) on Chr1 at ∼164 Mb may have a major regulatory role in CIE-responsive gene expression. Dnm3 expression correlates significantly with ethanol consumption, is contained in a highly ranked functional group of CIE-regulated genes in the NAC, and has a cis-eQTL within a genomic region linked with multiple CIE-responsive genes.

AB - The transition from acute to chronic ethanol exposure leads to lasting behavioral and physiological changes such as increased consumption, dependence, and withdrawal. Changes in brain gene expression are hypothesized to underlie these adaptive responses to ethanol. Previous studies on acute ethanol identified genetic variation in brain gene expression networks and behavioral responses to ethanol across the BXD panel of recombinant inbred mice. In this work, we have performed the first joint genetic and genomic analysis of transcriptome shifts in response to chronic intermittent ethanol (CIE) by vapor chamber exposure in a BXD cohort. CIE treatment is known to produce significant and sustained changes in ethanol consumption with repeated cycles of ethanol vapor. Using Affymetrix microarray analysis of prefrontal cortex (PFC) and nucleus accumbens (NAC) RNA, we compared CIE expression responses to those seen following acute ethanol treatment, and to voluntary ethanol consumption. Gene expression changes in PFC and NAC after CIE overlapped significantly across brain regions and with previously published expression following acute ethanol. Genes highly modulated by CIE were enriched for specific biological processes including synaptic transmission, neuron ensheathment, intracellular signaling, and neuronal projection development. Expression quantitative trait locus (eQTL) analyses identified genomic loci associated with ethanol-induced transcriptional changes with largely distinct loci identified between brain regions. Correlating CIE-regulated genes to ethanol consumption data identified specific genes highly associated with variation in the increase in drinking seen with repeated cycles of CIE. In particular, multiple myelin-related genes were identified. Furthermore, genetic variance in or near dynamin3 (Dnm3) on Chr1 at ∼164 Mb may have a major regulatory role in CIE-responsive gene expression. Dnm3 expression correlates significantly with ethanol consumption, is contained in a highly ranked functional group of CIE-regulated genes in the NAC, and has a cis-eQTL within a genomic region linked with multiple CIE-responsive genes.

UR - http://www.scopus.com/inward/record.url?scp=85009877664&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85009877664&partnerID=8YFLogxK

U2 - 10.1016/j.alcohol.2016.07.010

DO - 10.1016/j.alcohol.2016.07.010

M3 - Article

VL - 58

SP - 93

EP - 106

JO - Alcohol

JF - Alcohol

SN - 0741-8329

ER -