Cited by 101Muscle Physiology and DisordersNutrition and Health in AgingProtein Degradation and Inhibitors

Epigenetic targeting of bromodomain protein BRD4 counteracts cancer cachexia and prolongs survival

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Segatto, Marco, Fittipaldi, Raffaella, Pin, Fabrizio, Sartori, Roberta, Dae Ko, Kyung, Zare, Hossein, Fenizia, Claudio, Zanchettin, Gianpietro +9 more·2017·Nature Communications

Abstract

Cancer cachexia is a devastating metabolic syndrome characterized by systemic inflammation and massive muscle and adipose tissue wasting. Although it is responsible for approximately one-third of cancer deaths, no effective therapies are available and the underlying mechanisms have not been fully elucidated. We previously identified the bromodomain and extra-terminal domain (BET) protein BRD4 as an epigenetic regulator of muscle mass. Here we show that the pan-BET inhibitor (+)-JQ1 protects tumor-bearing mice from body weight loss and muscle and adipose tissue wasting. Remarkably, in C26-tumor-bearing mice (+)-JQ1 administration dramatically prolongs survival, without directly affecting tumor growth. By ChIP-seq and ChIP analyses, we unveil that BET proteins directly promote the muscle atrophy program during cachexia. In addition, BET proteins are required to coordinate an IL6-dependent AMPK nuclear signaling pathway converging on FoxO3 transcription factor. Overall, these findings indicate that BET proteins may represent a promising therapeutic target in the management of cancer cachexia.

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Authors
Segatto, M., Fittipaldi, R., Pin, F., Sartori, R., Dae Ko, K., Zare, H., Fenizia, C., Zanchettin, G., Pierobon, E. S., Hatakeyama, S., Sperti, C., Merigliano, S., Sandri, M., Filippakopoulos, P., Costelli, P., Sartorelli, V., & Caretti, G.
Affiliations
  • University of Milan (IT)
  • University of Turin (IT)
  • University of Padua (IT)
  • National Institutes of Health (US)
  • Novartis (Switzerland) (CH)
  • University of Oxford (GB)
Corresponding author
Caretti, Giuseppina
Venue
Nature Communications
Published
2017-11-22
Volume
8
Issue
1
Pages
1707-1707
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2768531312
Cited by
101
References
71
Citations by year
2026: 5 · 2025: 8 · 2024: 5 · 2023: 16 · 2022: 9 · 2021: 15 · 2020: 18 · 2019: 14 · 2018: 11
FWCI
4.80
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca (Universita Degli Studi Di Milano) (submittedVersion, cc-by)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion, cc-by-nc-nd)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion, cc-by)
  • Padua Research Archive (University of Padova) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Archivio Istituzionale della Ricerca - Università degli Studi del Molise (submittedVersion)
Funders
  • Wellcome Trust (106169/Z/14/Z, 095751/Z/11/Z)
  • Associazione Italiana per la Ricerca sul Cancro
  • Fondazione Italiana per la Ricerca sul Cancro
  • National Institutes of Health
  • Medical Research Council (MR/N010051/1)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Degradation and Inhibitors
Keywords
cancer cachexia, BRD4, BET proteins, JQ1, BET inhibitors, muscle atrophy, adipose tissue wasting, interleukin-6, AMPK signaling, FOXO3, epigenetic regulation, survival
MeSH terms
Forkhead Box Protein O3, Bromodomain Containing Proteins, Animals, Azepines, Cachexia, Gene Expression Regulation, Humans, Male, Muscular Atrophy, Neoplasms, Experimental, Nuclear Proteins, Transcription Factors, Triazoles, Interleukin-6, Muscle, Skeletal, Cell Cycle Proteins, Epigenesis, Genetic, Cell Line, Tumor, Mice, Metabolic Networks and Pathways, AMP-Activated Protein Kinases

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