Ethanol-Responsive Brain Region Expression Networks: Implications for Behavioral Responses to Acute Ethanol in DBA/2J versus C57BL/6J Mice
Activation of the mesolimbic dopamine reward pathway by acute ethanol produces reinforcement and changes in gene expression that appear to be crucial to the molecular basis for adaptive behaviors and addiction. The inbred mouse strains DBA/2J and C57BL/6J exhibit contrasting acute behavioral respons...
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| Veröffentlicht in: | The Journal of neuroscience 2005-03, Vol.25 (9), p.2255-2266 |
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| creator | Kerns, Robnet T Ravindranathan, Ajay Hassan, Sajida Cage, Mary P York, Tim Sikela, James M Williams, Robert W Miles, Michael F |
| description | Activation of the mesolimbic dopamine reward pathway by acute ethanol produces reinforcement and changes in gene expression that appear to be crucial to the molecular basis for adaptive behaviors and addiction. The inbred mouse strains DBA/2J and C57BL/6J exhibit contrasting acute behavioral responses to ethanol. We used oligonucleotide microarrays and bioinformatics methods to characterize patterns of gene expression in three brain regions of the mesolimbic reward pathway of these strains. Expression profiling included examination of both differences in gene expression 4 h after saline injection or acute ethanol (2 g/kg). Using a rigorous stepwise method for microarray analysis, we identified 788 genes differentially expressed in control DBA/2J versus C57BL/6J mice and 307 ethanol-regulated genes in the nucleus accumbens, prefrontal cortex, and ventral tegmental area. There were strikingly divergent patterns of ethanol-responsive gene expression in the two strains. Ethanol-responsive genes also showed clustering at discrete chromosomal regions, suggesting local chromatin effects in regulation. Ethanol-regulated genes were generally related to neuroplasticity, but regulation of discrete functional groups and pathways was brain region specific: glucocorticoid signaling, neurogenesis, and myelination in the prefrontal cortex; neuropeptide signaling and developmental genes, including factor Bdnf, in the nucleus accumbens; and retinoic acid signaling in the ventral tegmental area. Bioinformatics analysis identified several potential candidate genes for quantitative trait loci linked to ethanol behaviors, further supporting a role for expression profiling in identifying genes for complex traits. Brain region-specific changes in signaling and neuronal plasticity may be critical components in development of lasting ethanol behavioral phenotypes such as dependence, sensitization, and craving. |
| doi_str_mv | 10.1523/JNEUROSCI.4372-04.2005 |
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The inbred mouse strains DBA/2J and C57BL/6J exhibit contrasting acute behavioral responses to ethanol. We used oligonucleotide microarrays and bioinformatics methods to characterize patterns of gene expression in three brain regions of the mesolimbic reward pathway of these strains. Expression profiling included examination of both differences in gene expression 4 h after saline injection or acute ethanol (2 g/kg). Using a rigorous stepwise method for microarray analysis, we identified 788 genes differentially expressed in control DBA/2J versus C57BL/6J mice and 307 ethanol-regulated genes in the nucleus accumbens, prefrontal cortex, and ventral tegmental area. There were strikingly divergent patterns of ethanol-responsive gene expression in the two strains. Ethanol-responsive genes also showed clustering at discrete chromosomal regions, suggesting local chromatin effects in regulation. Ethanol-regulated genes were generally related to neuroplasticity, but regulation of discrete functional groups and pathways was brain region specific: glucocorticoid signaling, neurogenesis, and myelination in the prefrontal cortex; neuropeptide signaling and developmental genes, including factor Bdnf, in the nucleus accumbens; and retinoic acid signaling in the ventral tegmental area. Bioinformatics analysis identified several potential candidate genes for quantitative trait loci linked to ethanol behaviors, further supporting a role for expression profiling in identifying genes for complex traits. Brain region-specific changes in signaling and neuronal plasticity may be critical components in development of lasting ethanol behavioral phenotypes such as dependence, sensitization, and craving.</description><identifier>ISSN: 0270-6474</identifier><identifier>EISSN: 1529-2401</identifier><identifier>DOI: 10.1523/JNEUROSCI.4372-04.2005</identifier><identifier>PMID: 15745951</identifier><language>eng</language><publisher>United States: Soc Neuroscience</publisher><subject>Animals ; Behavior, Animal - drug effects ; Blotting, Western - methods ; Central Nervous System Depressants - administration & dosage ; Computational Biology - methods ; Dose-Response Relationship, Drug ; Drug Administration Schedule ; Ethanol - administration & dosage ; Gene Expression - drug effects ; Gene Expression Regulation - drug effects ; Male ; Mice ; Mice, Inbred C57BL ; Mice, Inbred DBA ; Microarray Analysis - methods ; Multivariate Analysis ; Neurobiology of Disease ; Nucleus Accumbens - drug effects ; Nucleus Accumbens - metabolism ; Prefrontal Cortex - drug effects ; Prefrontal Cortex - metabolism ; Quantitative Trait Loci - drug effects ; Reverse Transcriptase Polymerase Chain Reaction - methods ; Species Specificity ; Ventral Tegmental Area - drug effects ; Ventral Tegmental Area - metabolism</subject><ispartof>The Journal of neuroscience, 2005-03, Vol.25 (9), p.2255-2266</ispartof><rights>Copyright © 2005 Society for Neuroscience 0270-6474/05/252255-12.00/0 2005</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c540t-bf2d866f5d508ee18dd56013e3eacad86c36acddfcfe989ce8e5e0e16da23f7c3</citedby><cites>FETCH-LOGICAL-c540t-bf2d866f5d508ee18dd56013e3eacad86c36acddfcfe989ce8e5e0e16da23f7c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726093/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726093/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,727,780,784,885,27923,27924,53790,53792</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15745951$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kerns, Robnet T</creatorcontrib><creatorcontrib>Ravindranathan, Ajay</creatorcontrib><creatorcontrib>Hassan, Sajida</creatorcontrib><creatorcontrib>Cage, Mary P</creatorcontrib><creatorcontrib>York, Tim</creatorcontrib><creatorcontrib>Sikela, James M</creatorcontrib><creatorcontrib>Williams, Robert W</creatorcontrib><creatorcontrib>Miles, Michael F</creatorcontrib><title>Ethanol-Responsive Brain Region Expression Networks: Implications for Behavioral Responses to Acute Ethanol in DBA/2J versus C57BL/6J Mice</title><title>The Journal of neuroscience</title><addtitle>J Neurosci</addtitle><description>Activation of the mesolimbic dopamine reward pathway by acute ethanol produces reinforcement and changes in gene expression that appear to be crucial to the molecular basis for adaptive behaviors and addiction. 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Ethanol-regulated genes were generally related to neuroplasticity, but regulation of discrete functional groups and pathways was brain region specific: glucocorticoid signaling, neurogenesis, and myelination in the prefrontal cortex; neuropeptide signaling and developmental genes, including factor Bdnf, in the nucleus accumbens; and retinoic acid signaling in the ventral tegmental area. Bioinformatics analysis identified several potential candidate genes for quantitative trait loci linked to ethanol behaviors, further supporting a role for expression profiling in identifying genes for complex traits. 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Ethanol-regulated genes were generally related to neuroplasticity, but regulation of discrete functional groups and pathways was brain region specific: glucocorticoid signaling, neurogenesis, and myelination in the prefrontal cortex; neuropeptide signaling and developmental genes, including factor Bdnf, in the nucleus accumbens; and retinoic acid signaling in the ventral tegmental area. Bioinformatics analysis identified several potential candidate genes for quantitative trait loci linked to ethanol behaviors, further supporting a role for expression profiling in identifying genes for complex traits. Brain region-specific changes in signaling and neuronal plasticity may be critical components in development of lasting ethanol behavioral phenotypes such as dependence, sensitization, and craving.</abstract><cop>United States</cop><pub>Soc Neuroscience</pub><pmid>15745951</pmid><doi>10.1523/JNEUROSCI.4372-04.2005</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Animals Behavior, Animal - drug effects Blotting, Western - methods Central Nervous System Depressants - administration & dosage Computational Biology - methods Dose-Response Relationship, Drug Drug Administration Schedule Ethanol - administration & dosage Gene Expression - drug effects Gene Expression Regulation - drug effects Male Mice Mice, Inbred C57BL Mice, Inbred DBA Microarray Analysis - methods Multivariate Analysis Neurobiology of Disease Nucleus Accumbens - drug effects Nucleus Accumbens - metabolism Prefrontal Cortex - drug effects Prefrontal Cortex - metabolism Quantitative Trait Loci - drug effects Reverse Transcriptase Polymerase Chain Reaction - methods Species Specificity Ventral Tegmental Area - drug effects Ventral Tegmental Area - metabolism |
| title | Ethanol-Responsive Brain Region Expression Networks: Implications for Behavioral Responses to Acute Ethanol in DBA/2J versus C57BL/6J Mice |
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