Cited by 308Cytokine Signaling Pathways and InteractionsTGF-β signaling in diseasesPsoriasis: Treatment and Pathogenesis

Hyperactivation of Stat3 in gp130 mutant mice promotes gastric hyperproliferation and desensitizes TGF-β signaling

Jenkins, Brendan J, Grail, Dianne, Nheu, Thao, Najdovska, Meri, Wang, Bo, Waring, Paul, Inglese, Melissa, McLoughlin, Rachel M +8 more·2005·Nature Medicine

Abstract

The latent transcription factor Stat3 is activated by gp130, the common receptor for the interleukin (IL)-6 cytokine family and other growth factor and cytokine receptors. Ligand-induced dimerization of gp130 leads to activation of the Stat1, Stat3 and Shp2-Ras-Erk signaling pathways. Here we assess genetically the contribution of exaggerated Stat3 activation to the phenotype of gp130 (Y757F/Y757F) mice, in which a knock-in mutation disrupts the negative feedback mechanism on gp130-dependent Stat signaling. Compared to gp130 (Y757F/Y757F) mice, reduced Stat3 activation in gp130 (Y757F/Y757F) Stat3(+/-) mice increased their lifespan, prevented splenomegaly, normalized exaggerated hepatic acute-phase response and lymphocyte trafficking, and suppressed the growth of spontaneously arising gastric adenomas in young mice. These lesions share histological features of gastric polyps in aging mice with monoallelic null mutations in Smad4, which encodes the common transducer for transforming growth factor (TGF)-beta signaling. Indeed, hyperactivation of Stat3 desensitizes gp130 (Y757F/Y757F) cells to the cytostatic effect of TGF-beta through transcriptional induction of inhibitory Smad7, thereby providing a novel link for cross-talk between Stat and Smad signaling in gastric homeostasis.

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Crossref · 10.1038/nm1282

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  • gp130Y757F/Y757F mice show hyper-activation of STAT3 and develop gastric hyperplasia resembling human early-stage gastric cancer.

    “Another knock-in mouse strain (gp130Y757F/Y757F mice) having the point mutation Y759F in murine gp130 also shows the hyper-activation of STAT3 and develops gastric hyperplasia resembling human early-stage gastric cancer (64, 256).”

    From IL-6 in inflammation, autoimmunity and cancer (2021) · cites this paper as [64]

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Authors
Jenkins, B. J., Grail, D., Nheu, T., Najdovska, M., Wang, B., Waring, P., Inglese, M., McLoughlin, R. M., Jones, S. A., Topley, N., Baumann, H., Judd, L. M., Giraud, A. S., Boussioutas, A., Zhu, H.-J., & Ernst, M.
Affiliations
  • Ludwig Cancer Research (AU)
  • Peter MacCallum Cancer Centre (AU)
  • Cardiff University (GB)
  • Roswell Park Comprehensive Cancer Center (US)
  • The University of Melbourne (AU)
Corresponding author
  • Zhu, Hong-Jian
  • Ernst, Matthias
Venue
Nature Medicine
Published
2005-07-24
Volume
11
Issue
8
Pages
845-852
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2115970547
Cited by
308
References
5
Citations by year
2026: 4 · 2025: 5 · 2024: 8 · 2023: 17 · 2022: 14 · 2021: 21 · 2020: 10 · 2019: 12 · 2018: 15 · 2017: 18 · 2016: 14 · 2015: 13 · 2014: 22 · 2013: 18 · 2012: 19
FWCI
8.12
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Psoriasis: Treatment and Pathogenesis
Keywords
STAT3, gp130, IL-6 receptor, gastric adenoma, TGF-beta signaling, Smad7, SMAD4, negative feedback regulation, gastric polyps, aging, lifespan, splenomegaly, acute phase response, lymphocyte migration
MeSH terms
Adenoma, Animals, Histological Techniques, Mice, Mutant Strains, Stomach Neoplasms, Immunoblotting, Signal Transduction, Transcriptional Activation, Transforming Growth Factor beta, Reverse Transcriptase Polymerase Chain Reaction, STAT3 Transcription Factor, Cytokine Receptor gp130, Mice, Smad7 Protein

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