Cited by 121Sirtuins and Resveratrol in MedicineAlcohol Consumption and Health EffectsAdvanced Proteomics Techniques and Applications

Mitochondrial acetylome analysis in a mouse model of alcohol-induced liver injury utilizing SIRT3 knockout mice

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Fritz, Kristofer S., Galligan, James J., Hirschey, Matthew D., Verdin, Eric, Petersen, Dennis R.·2012·Journal of Proteome Research

Abstract

Mitochondrial protein hyperacetylation is a known consequence of sustained ethanol consumption and has been proposed to play a role in the pathogenesis of alcoholic liver disease (ALD). The mechanisms underlying this altered acetylome, however, remain unknown. The mitochondrial deacetylase sirtuin 3 (SIRT3) is reported to be the major regulator of mitochondrial protein deacetylation and remains a central focus for studies on protein acetylation. To investigate the mechanisms underlying ethanol-induced mitochondrial acetylation, we employed a model for ALD in both wild-type (WT) and SIRT3 knockout (KO) mice using a proteomics and bioinformatics approach. Here, WT and SIRT3 KO groups were compared in a mouse model of chronic ethanol consumption, revealing pathways relevant to ALD, including lipid and fatty acid metabolism, antioxidant response, amino acid biosynthesis and the electron-transport chain, each displaying proteins with altered acetylation. Interestingly, protein hyperacetylation resulting from ethanol consumption and SIRT3 ablation suggests ethanol-induced hyperacetylation targets numerous biological processes within the mitochondria, the majority of which are known to be acetylated through SIRT3-dependent mechanisms. These findings reveal overall increases in 91 mitochondrial targets for protein acetylation, identifying numerous critical metabolic and antioxidant pathways associated with ALD, suggesting an important role for mitochondrial protein acetylation in the pathogenesis of ALD.

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Authors
Fritz, K. S., Galligan, J. J., Hirschey, M. D., Verdin, E., & Petersen, D. R.
Affiliations
  • University of Colorado Denver (US)
  • University of California, San Francisco (US)
Corresponding author
Petersen, Dennis R.
Venue
Journal of Proteome Research
Published
2012-02-21
Volume
11
Issue
3
Pages
1633-1643
ISSN
  • 1535-3893 (ISSN-L)
  • 1535-3907
OpenAlex
W1970967418
Cited by
121
References
58
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 5 · 2022: 4 · 2021: 7 · 2020: 6 · 2019: 9 · 2018: 5 · 2017: 10 · 2016: 15 · 2015: 11 · 2014: 16 · 2013: 17 · 2012: 10
FWCI
8.49
Type
journal article
Language
en
Open access
Locations
  • Journal of Proteome Research (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (1f31aa018606-01)
  • National Institute on Alcohol Abuse and Alcoholism (F31 AA018606, F31AA018606-01, R37-AA09300, R37AA009300)
  • National Institute of Allergy and Infectious Diseases (P30AI027763)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK074487)
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
Keywords
alcoholic liver disease, mitochondrial protein acetylation, SIRT3, SIRT3 knockout mice, chronic alcohol consumption, mitochondrial deacetylase, antioxidant response, amino acid biosynthesis, electron transport chain, acetylome
MeSH terms
Aldehyde Dehydrogenase, Mitochondrial, Superoxide Dismutase 2, Acetylation, Acetyltransferases, Ethanol, Aldehyde Dehydrogenase, Animals, Disease Models, Animal, Isocitrate Dehydrogenase, Liver Diseases, Alcoholic, Male, Mice, Inbred C57BL, Protein Processing, Post-Translational, Superoxide Dismutase, Electrophoresis, Gel, Two-Dimensional, Mice, Knockout, Oxidative Stress, Proteome, Mitochondrial Proteins, Lipid Metabolism, Mice, Chemical and Drug Induced Liver Injury, Sirtuin 3

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