Cited by 187Macrophage Migration Inhibitory FactorImmune cells in cancerProtein Tyrosine Phosphatases

Macrophage migration inhibitory factor promotes innate immune responses by suppressing glucocorticoid-induced expression of mitogen-activated protein kinase phosphatase-1

Roger, Thierry, Chanson, Anne‐Laure, Knaup‐Reymond, Marlies, Calandra, Thierry·2005·European Journal of Immunology

Abstract

The pro-inflammatory cytokine macrophage migration inhibitory factor (MIF) acts as a physiological counter-regulator of the immuno-suppressive effects of glucocorticoids. However, the mechanisms whereby MIF exerts its counter-balancing effect remain largely unknown. Here we report that MAPK phosphatase 1 (MKP-1), an archetypal member of dual specificity phosphatase that inactivates MAPK activity in response to pro-inflammatory stimuli, is a critical target of MIF-glucocorticoid crosstalk. Recombinant MIF counter-regulated in a dose-dependent fashion dexamethasone inhibition of TNF and IL-8 production by RAW 264.7 macrophages and U-937 promonocytes stimulated with lipopolysaccharides (LPS) or with LPS plus phorbol 12-myristate 13-acetate. Stimulation of RAW 264.7 macrophages with dexamethasone or dexamethasone plus LPS led to a robust up-regulation of MKP-1 mRNA and protein expressions that were counter-regulated by addition of recombinant MIF. Antisense MIF macrophages expressing reduced levels of endogenous MIF produced higher amount of MKP-1 and lower amount of TNF after exposure to dexamethasone and dexamethasone plus LPS, indicating that endogenous MIF acts in an autocrine fashion to override glucocorticoid-induced MKP-1 expression and inhibition of cytokine production. Taken together, these data identify MKP-1 as a molecular target of MIF-glucocorticoid crosstalk and provide a molecular basis for the control of macrophage responses by a pair of physiological regulators of innate immunity.

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Crossref · 10.1002/eji.200535413

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  • Acute glucocorticoid exposure induces sustained expression of MKP-1 in a variety of cells including macrophages.

    “Acute GC exposure induces sustained expression of MKP-1 in a variety of cells including macrophages (Roger et al., 2005).”

    From The Stressed CNS: When Glucocorticoids Aggravate Inflammation (2009) · cites this paper as Roger et al., 2005

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Authors
Roger, T., Chanson, A., Knaup‐Reymond, M., & Calandra, T.
Affiliations
Centre Hospitalier Universitaire Vaudois (CH)
Corresponding author
Calandra, Thierry
Venue
European Journal of Immunology
Publisher
Wiley
Published
2005-12
Volume
35
Issue
12
Pages
3405-3413
ISSN
  • 0014-2980 (ISSN-L)
  • 1521-4141
OpenAlex
W2046525356
Cited by
184
References
48
Citations by year
2025: 3 · 2024: 4 · 2023: 6 · 2022: 6 · 2021: 7 · 2020: 4 · 2019: 13 · 2018: 8 · 2017: 7 · 2016: 8 · 2015: 4 · 2014: 9 · 2013: 10 · 2012: 16
FWCI
4.85
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • IRIS (submittedVersion)
  • SERVAL (Université de Lausanne) (submittedVersion)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Macrophage Migration Inhibitory Factor
  • Life Sciences › Immunology and Microbiology › Immunology › Immune cells in cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Tyrosine Phosphatases
Keywords
macrophage migration inhibitory factor, MAPK phosphatase-1, glucocorticoids, dexamethasone, innate immunity, macrophages, lipopolysaccharide, TNF-α, interleukin-8, autocrine regulation, dual-specificity phosphatase, MAPK signaling, immunosuppression
MeSH terms
Animals, Cell Line, Glucocorticoids, Humans, Immunity, Innate, Macrophage Migration-Inhibitory Factors, Phosphoprotein Phosphatases, Cytokines, Protein Tyrosine Phosphatases, Immediate-Early Proteins, Cell Cycle Proteins, U937 Cells, Mice, Dual Specificity Phosphatase 1, Protein Phosphatase 1

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