Cited by 82Endoplasmic Reticulum Stress and DiseaseCircadian rhythm and melatoninRNA Research and Splicing

Circadian- and UPR-dependent control of CPEB4 mediates a translational response to counteract hepatic steatosis under ER stress

Maillo, Carlos, Martín, Judit, Sebastián, David, Hernández-Alvarez, Maribel, García-Rocha, Mar, Reina, Oscar, Zorzano, Antonio, Fernandez, Mercedes +1 more·2017·Nature Cell Biology

Abstract

The cytoplasmic polyadenylation element-binding (CPEB) proteins regulate pre-mRNA processing and translation of CPE-containing mRNAs in early embryonic development and synaptic activity. However, specific functions in adult organisms are poorly understood. Here we show that CPEB4 is required for adaptation to high-fat-diet- and ageing-induced endoplasmic reticulum (ER) stress, and subsequent hepatosteatosis. Stress-activated liver CPEB4 expression is dual-mode regulated. First, Cpeb4 mRNA transcription is controlled by the circadian clock, and then its translation is regulated by the unfolded protein response (UPR) through upstream open reading frames within the 5'UTR. Thus, the CPEB4 protein is synthesized only following ER stress but the induction amplitude is circadian. In turn, CPEB4 activates a second wave of UPR translation required to maintain ER and mitochondrial homeostasis. Our results suggest that combined transcriptional and translational Cpeb4 regulation generates a 'circadian mediator', which coordinates hepatic UPR activity with periods of high ER-protein-folding demand. Accordingly, CPEB4 deficiency results in non-alcoholic fatty liver disease.

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Crossref · 10.1038/ncb3461

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Research works printed but not linked: 2

  1. Ortiz-Zapater, E. et al. Key contribution of CPEB4-mediated translational control to cancer progression. Nat. Med. 18, 83–90 (2012). · DOI
  2. Calderone, V. et al. Sequential functions of CPEB1 and CPEB4 regulate pathologic expression of vascular endothelial growth factor and angiogenesis in chronic liver disease. Gastroenterology 150, 982–997.e930 (2016). · DOI

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Authors
Maillo, C., Martín, J., Sebastián, D., Hernández-Alvarez, M., García-Rocha, M., Reina, O., Zorzano, A., Fernandez, M., & Méndez, R.
Affiliations
  • Institute for Research in Biomedicine (ES)
  • Instituto de Salud Carlos III (ES)
  • Institució Catalana de Recerca i Estudis Avançats (ES)
Corresponding author
Méndez, Raúl
Venue
Nature Cell Biology
Published
2017-01-16
Volume
19
Issue
2
Pages
94-105
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2574341388
Cited by
82
References
72
Citations by year
2026: 8 · 2025: 7 · 2024: 6 · 2023: 6 · 2022: 14 · 2021: 8 · 2020: 11 · 2019: 9 · 2018: 7 · 2017: 6
FWCI
4.81
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Institute for Research in Biomedicine
  • Ministerio de Economía y Competitividad
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Endoplasmic Reticulum Stress and Disease
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
Keywords
CPEB4, cytoplasmic polyadenylation, endoplasmic reticulum stress, unfolded protein response, circadian clock, hepatic steatosis, non-alcoholic fatty liver disease, translational regulation, upstream open reading frames, 5' untranslated region, mitochondrial homeostasis, aging, high-fat diet, hepatocytes
MeSH terms
Animals, Endoplasmic Reticulum, Fatty Liver, Gene Expression Regulation, Homeostasis, RNA Precursors, Transcription, Genetic, Protein Biosynthesis, RNA-Binding Proteins, Mice, Unfolded Protein Response, Endoplasmic Reticulum Stress

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