Cited by 71Sirtuins and Resveratrol in MedicineAlcohol Consumption and Health EffectsFOXO transcription factor regulation

Alcohol alters hepatic FoxO1, p53, and mitochondrial SIRT5 deacetylation function

Lieber, Charles S., Leo, Maria Anna, Wang, Xiaolei, DeCarli, Leonore M.·2008·Biochemical and Biophysical Research Communications

Abstract

Chronic alcohol consumption affects the gene expression of a NAD-dependent deacetylase Sirtuis 1 (SIRT1) and the peroxisome proliferator-activated receptor-gamma coactivator1alpha (PGC-1alpha). Our aim was to verify that it also alters the forkhead (FoxO1) and p53 transcription factor proteins, critical in the hepatic response to oxidative stress and regulated by SIRT1 through its deacetylating capacity. Accordingly, rats were pair-fed the Lieber-DeCarli alcohol-containing liquid diets for 28 days. Alcohol increased hepatic mRNA expression of FoxO1 (p=0.003) and p53 (p=0.001) while corresponding protein levels remained unchanged. However phospho-FoxO1 and phospho-Akt (protein kinase) were both decreased by alcohol consumption (p=0.04 and p=0.02, respectively) while hepatic p53 was found hyperacetylated (p=0.017). Furthermore, mitochondrial SIRT5 was reduced (p=0.0025), and PGC-1alpha hyperacetylated (p=0.027), establishing their role in protein modification. Thus, alcohol consumption disrupts nuclear-mitochondrial interactions by post-translation protein modifications, which contribute to alteration of mitochondrial biogenesis through the newly discovered reduction of SIRT5.

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Crossref · 10.1016/j.bbrc.2008.06.006

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Authors
Lieber, C. S., Leo, M. A., Wang, X., & DeCarli, L. M.
Affiliations
  • James J. Peters VA Medical Center (US)
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Lieber, Charles S.
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
2008-08
Volume
373
Issue
2
Pages
246-252
ISSN
0006-291X (ISSN-L)
OpenAlex
W2009508393
Cited by
71
References
31
Citations by year
2025: 1 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 4 · 2020: 4 · 2019: 3 · 2018: 4 · 2017: 3 · 2016: 5 · 2015: 4 · 2014: 6 · 2013: 5 · 2012: 4
FWCI
2.71
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion)
  • PubMed (publishedVersion)
Funders
U.S. Department of Veterans Affairs
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Sirtuins and Resveratrol in Medicine
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Alcohol Consumption and Health Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › FOXO transcription factor regulation
Keywords
chronic alcohol consumption, FOXO1, p53, SIRT5, SIRT1, PGC-1α, protein acetylation, deacetylation, hepatic oxidative stress, Akt phosphorylation, mitochondrial biogenesis, nuclear-mitochondrial interactions, Lieber-DeCarli diet, liver
MeSH terms
Forkhead Box Protein O1, Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Acetylation, Alcohol Drinking, Ethanol, Animals, Male, Mitochondria, Nerve Tissue Proteins, Phosphorylation, Protein Processing, Post-Translational, Transcription Factors, Tumor Suppressor Protein p53, RNA-Binding Proteins, Rats, Sprague-Dawley, Sirtuins, Proto-Oncogene Proteins c-akt, Rats, Forkhead Transcription Factors, Sirtuin 1

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