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An Assay for Measuring the Effects of Ethanol on the Locomotion Speed of Caenorhabditis elegans
10:35

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Published on: April 9, 2015

MeCP2 regulates ethanol sensitivity and intake.

Vez Repunte-Canonigo1, Jihuan Chen, Celine Lefebvre

  • 1Molecular and Integrative Neuroscience Department, The Scripps Research Institute, La Jolla, CA, USA.

Addiction Biology
|March 2, 2013
PubMed
Summary
This summary is machine-generated.

Methyl-CpG binding protein 2 (MeCP2) influences ethanol sensitivity and drinking behaviors. MeCP2-deficient mice show altered responses to alcohol, suggesting its role in regulating alcohol consumption and dependence.

Keywords:
Alcohol dependencechromatinepigeneticgene regulation

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Published on: April 15, 2015

Area of Science:

  • Neuroscience
  • Genetics
  • Pharmacology

Background:

  • Chronic intermittent ethanol (CIE) exposure can lead to increased ethanol consumption and dependence.
  • Chromatin-regulating genes play a role in neuroadaptation to chronic ethanol exposure.
  • Methyl-CpG binding protein 2 (MeCP2) is a key regulator of gene expression.

Purpose of the Study:

  • To investigate the role of MeCP2 in regulating ethanol sensitivity and drinking behaviors.
  • To examine the expression of chromatin-regulating genes in brain regions associated with alcohol dependence.
  • To determine if MeCP2 deficiency affects ethanol intake and responses.

Main Methods:

  • Investigated chromatin-regulating gene expression in mouse prefrontal cortex and nucleus accumbens.
  • Utilized MeCP2(308/Y) mutant mice with a truncated MeCP2 allele.
  • Assessed ethanol sensitivity, drinking behavior, alcohol metabolism, and taste function in mutant and wild-type mice.
  • Employed Gene Set Enrichment Analysis to identify overlapping gene regulation by alcohol and MeCP2.

Main Results:

  • MeCP2 was differentially regulated in mice with a history of ethanol dependence.
  • MeCP2(308/Y) mice exhibited increased sensitivity to ethanol's effects and reduced ethanol intake.
  • No differences in alcohol metabolism or taste function were observed between MeCP2(308/Y) and wild-type mice.
  • Significant overlap was found between genes regulated by alcohol and MeCP2.

Conclusions:

  • MeCP2 plays a significant role in modulating ethanol sensitivity and consumption.
  • MeCP2 may be a key molecular player in the development of alcohol dependence.
  • Targeting MeCP2 could offer novel therapeutic strategies for alcohol use disorders.