Cited by 33Liver Disease Diagnosis and TreatmentAdipokines, Inflammation, and Metabolic DiseasesLiver physiology and pathology

Hypoxia-inducible factor prolyl hydroxylase 1 (PHD1) deficiency promotes hepatic steatosis and liver-specific insulin resistance in mice

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Thomas, Amandine, Belaidi, Elise, Aron-Wisnewsky, Judith, van der Zon, Gerard C., Levy, Patrick, Clement, Karine, Pepin, Jean-Louis, Godin-Ribuot, Diane +1 more·2016·Scientific Reports

Abstract

Obesity is associated with local tissue hypoxia and elevated hypoxia-inducible factor 1 alpha (HIF-1α) in metabolic tissues. Prolyl hydroxylases (PHDs) play an important role in regulating HIF-α isoform stability. In the present study, we investigated the consequence of whole-body PHD1 gene (Egln2) inactivation on metabolic homeostasis in mice. At baseline, PHD1-/- mice exhibited higher white adipose tissue (WAT) mass, despite lower body weight, and impaired insulin sensitivity and glucose tolerance when compared to age-matched wild-type (WT) mice. When fed a synthetic low-fat diet, PHD1-/- mice also exhibit a higher body weight gain and WAT mass along with glucose intolerance and systemic insulin resistance compared to WT mice. PHD1 deficiency led to increase in glycolytic gene expression, lipogenic proteins ACC and FAS, hepatic steatosis and liver-specific insulin resistance. Furthermore, gene markers of inflammation were also increased in the liver, but not in WAT or skeletal muscle, of PHD1-/- mice. As expected, high-fat diet (HFD) promoted obesity, hepatic steatosis, tissue-specific inflammation and systemic insulin resistance in WT mice but these diet-induced metabolic alterations were not exacerbated in PHD1-/- mice. In conclusion, PHD1 deficiency promotes hepatic steatosis and liver-specific insulin resistance but does not worsen the deleterious effects of HFD on metabolic homeostasis.

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Authors
Thomas, A., Belaidi, E., Aron-Wisnewsky, J., van der Zon, G. C., Levy, P., Clement, K., Pepin, J.-L., Godin-Ribuot, D., & Guigas, B.
Affiliations
  • Inserm (FR)
  • Leiden University Medical Center (NL)
Corresponding author
Guigas, Bruno
Venue
Scientific Reports
Published
2016-04-20
Volume
6
Issue
1
Pages
24618-24618
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2340727889
Cited by
33
References
45
Citations by year
2025: 3 · 2024: 2 · 2023: 2 · 2022: 5 · 2021: 5 · 2020: 5 · 2019: 1 · 2018: 3 · 2017: 6 · 2016: 1
FWCI
3.44
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • HAL (submittedVersion, cc-by)
  • Leiden Repository (Leiden University) (submittedVersion)
Funders
  • Fondation du Souffle
  • Fondation de France
  • Agir pour les Maladies Chroniques
Topics
  • Health Sciences › Medicine › Epidemiology › Liver Disease Diagnosis and Treatment
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
Keywords
PHD1, EGLN2, hypoxia-inducible factor-1α, hepatic steatosis, obesity, impaired glucose tolerance, tissue hypoxia, liver inflammation, high-fat diet, metabolic homeostasis, lipogenesis, glycolysis
MeSH terms
Animals, Body Weight, Disease Models, Animal, Energy Metabolism, Fatty Liver, Homeostasis, Inflammation, Insulin Resistance, Male, Organ Specificity, Procollagen-Proline Dioxygenase, Glucose Intolerance, Mice, Knockout, Adiposity, Dyslipidemias, Mice, Diet, High-Fat

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