Cited by 53Immune Response and InflammationNF-κB Signaling PathwaysEstrogen and related hormone effects

TAK1 targeting by glucocorticoids determines JNK and IκB regulation in Toll-like receptor–stimulated macrophages

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Bhattacharyya, Sandip, Ratajczak, Christine K., Vogt, Sherri K., Kelley, Crystal, Colonna, Marco, Schreiber, Robert D., Muglia, Louis J.·2010·Blood

Abstract

Glucocorticoids potently attenuate the production of inflammatory mediators by macrophages, a primary effector of innate immunity. Activation of different macrophage Toll-like receptors (TLRs) by their respective ligands presents a powerful system by which to evaluate stimulus-dependent glucocorticoid effects in the same cell type. Here, we test the hypothesis that glucocorticoids, acting through the glucocorticoid receptor, modulate macrophage activation preferentially depending upon the TLR-selective ligand and TLR adapters. We established that 2 adapters, Trif, MyD88, or both, determine the ability of glucocorticoids to suppress inhibitor of kappaB (IkappaB) degradation or Janus kinase (JNK) activation. Moreover, the sensitivity of transforming growth factor beta-activated kinase 1 (TAK1) activation to glucocorticoids determines these effects. These findings identify TAK1 as a novel target for glucocorticoids that integrates their anti-inflammatory action in innate immunity signaling pathways.

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Registry

Crossref · 10.1182/blood-2009-06-224782

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49 of 49 references verified0 citation errors · 0 not checkable

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  • Dexamethasone inhibits JNK upon TLR3 or TLR9 activation through the GR, but concomitant activation of both signaling pathways (or TLR4) yields resistance of JNK to deactivation by GCs.

    “It was also reported that dexamethasone inhibit JNK upon TLR3 (TRIF) or TLR9 (MyD88) activation through the GR, but that the concomitant activation of both signaling pathways (or TLR4) yields to the resistance of JNK to deactivation by GCs (124).”

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Authors
Bhattacharyya, S., Ratajczak, C. K., Vogt, S. K., Kelley, C., Colonna, M., Schreiber, R. D., & Muglia, L. J.
Affiliations
  • Vanderbilt University (US)
  • Washington University in St. Louis (US)
Venue
Blood
Published
2010-03-11
Volume
115
Issue
10
Pages
1921-1931
ISSN
  • 0006-4971 (ISSN-L)
  • 1528-0020
OpenAlex
W2020694024
Cited by
53
References
49
Citations by year
2026: 2 · 2025: 2 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 4 · 2019: 5 · 2018: 4 · 2017: 7 · 2016: 2 · 2015: 4 · 2014: 4 · 2013: 4 · 2012: 3
FWCI
1.51
Type
journal article
Language
en
Open access
Locations
  • Blood (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Pfizer
  • National Institutes of Health
  • National Institute of Allergy and Infectious Diseases (AI50653)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
glucocorticoids, glucocorticoid receptor, TAK1, Toll-like receptors, macrophages, JNK activation, IκB degradation, TRIF, MyD88, innate immunity, anti-inflammatory signaling
MeSH terms
MAP Kinase Kinase Kinase 7, Animals, Dexamethasone, Glucocorticoids, Immunity, Innate, Macrophage Activation, Macrophages, Mice, Inbred C57BL, Polydeoxyribonucleotides, Signal Transduction, Drug Delivery Systems, Mice, Knockout, I-kappa B Proteins, MAP Kinase Kinase Kinases, JNK Mitogen-Activated Protein Kinases, Toll-Like Receptors, Toll-Like Receptor 3, Toll-Like Receptor 9, Mice

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