Cited by 60Alcohol Consumption and Health EffectsSirtuins and Resveratrol in MedicineDrug-Induced Hepatotoxicity and Protection

Ethanol intoxication increases hepatic N-lysyl protein acetylation

Picklo, Matthew J.·2008·Biochemical and Biophysical Research Communications

Abstract

The acetylation of the epsilon-amino group of lysine to form N-acetyl lysine (N-AcLys)-modified proteins regulates the activity of metabolic proteins. Because of the multiple effects of ethanol upon hepatic metabolism, it was hypothesized that ethanol exposure increases the hepatic content of N-AcLys-modified proteins. To test this hypothesis, rats or mice were exposed to ethanol using a liquid diet regimen. Content of N-AcLys-modified proteins was elevated more than 5-fold after 6 weeks of ethanol exposure and persisted after ethanol withdrawal. Use of CYP2E1-knockout mice demonstrated that ethanol-induced acetylation was not dependent solely on CYP2E1 expression. The mitochondrial content of N-AcLys-modified proteins was elevated almost 5-fold following 6 weeks of ethanol exposure. Mitochondrial content of the deacetylase Sirt3 was unchanged by 6 weeks of ethanol exposure. These data indicate ethanol intoxication changes the acetylation status of, and likely the activity of, multiple mitochondrial proteins.

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Crossref · 10.1016/j.bbrc.2008.09.039

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Authors
Picklo, M. J.
Affiliations
University of North Dakota (US)
Corresponding author
Picklo, Matthew J.
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2008-11
Volume
376
Issue
3
Pages
615-619
ISSN
0006-291X (ISSN-L)
OpenAlex
W1996800526
Cited by
60
References
35
Citations by year
2025: 2 · 2024: 2 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 5 · 2018: 3 · 2017: 1 · 2016: 3 · 2015: 3 · 2014: 5 · 2013: 5 · 2012: 10
FWCI
2.84
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute on Alcohol Abuse and Alcoholism (R21AA015145, AA 15145-01)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmacology › Drug-Induced Hepatotoxicity and Protection
Keywords
ethanol intoxication, hepatic proteins, mitochondrial proteins, CYP2E1, SIRT3, ethanol withdrawal, hepatic metabolism, protein acetylation
MeSH terms
Acetylation, Ethanol, Alcoholic Intoxication, Animals, Female, Liver, Lysine, Male, Mice, Mutant Strains, Protein Processing, Post-Translational, Rats, Sprague-Dawley, Cytochrome P-450 CYP2E1, Mitochondrial Proteins, Mice, Rats

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