Cited by 291Adipokines, Inflammation, and Metabolic DiseasesPeroxisome Proliferator-Activated ReceptorsAdipose Tissue and Metabolism

Mature-onset obesity and insulin resistance in mice deficient in the signaling adapter p62

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Rodriguez, Angelina, Durán, Angeles, Selloum, Mohammed, Champy, Marie-France, Diez-Guerra, Francisco J., Flores, Juana María, Serrano, Manuel, Auwerx, Johan +2 more·2006·Cell Metabolism

Abstract

Signaling cascades that control adipogenesis are essential in the regulation of body weight and obesity. The adaptor p62 controls pathways that modulate cell differentiation. We report here that p62(-/-) mice develop mature-onset obesity, leptin resistance, as well as impaired glucose and insulin intolerance. The metabolic rate was significantly reduced in p62(-/-) nonobese mice, which displayed increased mRNA levels of PPAR-gamma and reduced levels of UCP-1 in adipose tissue. Basal activity of ERK was enhanced in fat from nonobese mutant mice. Embryo fibroblasts from p62(-/-) mice differentiated better than the wild-type controls into adipocytes, which was abrogated by pharmacological inhibition of the ERK pathway. p62 is induced during adipocyte differentiation and inhibits ERK activation by direct interaction. We propose that p62 normally antagonizes basal ERK activity and adipocyte differentiation and that its loss leads to the hyperactivation of ERK that favors adipogenesis and obesity.

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Crossref · 10.1016/j.cmet.2006.01.011

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  • sqstm1-knockout mice display reduced numbers of osteoclasts, cognitive impairment, and anxiety, associated with hyperphosphorylated MAPT/tau and neurofibrillary tangles.

    “sqstm1-knockout mice display reduced numbers of osteoclasts as well as cognitive impairment and anxiety, associated with hyperphosphorylated MAPT/tau and neurofibrillary tangles [134–136].”

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Authors
Rodriguez, A., Durán, A., Selloum, M., Champy, M.-F., Diez-Guerra, F. J., Flores, J. M., Serrano, M., Auwerx, J., Diaz-Meco, M. T., & Moscat, J.
Affiliations
  • Phénotypage et ingénierie précliniques des systèmes d’organismes modèles (FR)
  • Universidad Complutense de Madrid (ES)
  • Spanish National Cancer Research Centre (ES)
  • Consejo Superior de Investigaciones Científicas (ES)
Corresponding author
Moscat, Jorge
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2006-03
Volume
3
Issue
3
Pages
211-222
ISSN
1550-4131 (ISSN-L)
OpenAlex
W2096738869
Cited by
290
References
34
Citations by year
2026: 6 · 2025: 4 · 2024: 8 · 2023: 3 · 2022: 14 · 2021: 19 · 2020: 14 · 2019: 14 · 2018: 24 · 2017: 17 · 2016: 19 · 2015: 14 · 2014: 22 · 2013: 26 · 2012: 21
FWCI
9.52
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
Topics
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
p62, insulin resistance, leptin resistance, adipogenesis, ERK signaling, PPARγ, UCP1, metabolic rate, adipose tissue, impaired glucose tolerance
MeSH terms
Adipose Tissue, Animals, Diabetes Mellitus, Type 2, Embryo, Mammalian, Fibroblasts, HeLa Cells, Humans, Insulin Resistance, RNA, Messenger, Transcription Factors, Signal Transduction, Adipocytes, Mice, Knockout, 3T3-L1 Cells, Extracellular Signal-Regulated MAP Kinases, Adipogenesis, Mice, Transcription Factor TFIIH

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