Cited by 63Cytokine Signaling Pathways and InteractionsImmune Response and InflammationNF-κB Signaling Pathways

STAT4 and STAT6 regulate systemic inflammation and protect against lethal endotoxemia

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Lentsch, Alex B., Kato, Atsushi, Davis, Brian, Wang, Warner, Chao, Celia, Edwards, Michael J.·2001·Journal of Clinical Investigation

Abstract

Members of the signal transducer and activator of transcription (STAT) family are transcription factors that mediate many of the effects of pro- and anti-inflammatory cytokines. The progressive systemic inflammatory response induced by endotoxin is mediated by overzealous cytokine production. Here we identify STAT4 and STAT6 as critical regulators of the systemic inflammatory response to endotoxin. Mice deficient for STAT4 or STAT6 were highly susceptible to lethal endotoxemia. In STAT4(-/-) mice, antibody blockade of IL-12 prevented mortality, suggesting that STAT4 confers protection, while another signaling pathway mediates the detrimental effects of IL-12. In STAT6(-/-) mice we observed dysregulated activation of the transcription factor NF-kappaB, resulting in augmented production of proinflammatory cytokines and chemokines. Furthermore, STAT6(-/-) mice displayed increased organ accumulation of leukocytes and significant hepatocellular injury. These findings demonstrate that STAT4 and STAT6 confer protection against endotoxin-induced death and that for STAT6 these protective effects occur through the regulation of NF-kappaB activation and subsequent production of proinflammatory cytokines and chemokines.

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Authors
Lentsch, A. B., Kato, A., Davis, B., Wang, W., Chao, C., & Edwards, M. J.
Affiliations
University of Louisville (US)
Corresponding author
Lentsch, Alex B.
Venue
Journal of Clinical Investigation
Published
2001-11-15
Volume
108
Issue
10
Pages
1475-1482
ISSN
0021-9738 (ISSN-L)
OpenAlex
W4250194912
Cited by
63
References
31
Citations by year
2026: 2 · 2025: 3 · 2024: 6 · 2023: 5 · 2022: 5 · 2021: 3 · 2020: 2 · 2018: 2 · 2017: 1 · 2016: 2 · 2015: 4 · 2012: 1
FWCI
1.63
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK 56029, R01DK056029)
Topics
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
Keywords
STAT4, STAT6, endotoxemia, systemic inflammation, IL-12, NF-κB, inflammatory cytokines, chemokines, hepatocyte injury, leukocyte accumulation, cytokine signaling, transcription factors
MeSH terms
Animals, DNA-Binding Proteins, Inflammation, Mice, Inbred BALB C, Trans-Activators, NF-kappa B, Endotoxemia, STAT4 Transcription Factor, STAT6 Transcription Factor, Mice

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