Cited by 44NF-κB Signaling PathwaysRheumatoid Arthritis Research and TherapiesImmune Response and Inflammation

CD45-induced Tumor Necrosis Factor α Production in Monocytes Is Phosphatidylinositol 3-Kinase-dependent and Nuclear Factor-κB-independent

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Hayes, A. Louise, Smith, Clive, Foxwell, Brian M.J., Brennan, Fionula M.·1999·Journal of Biological Chemistry

Abstract

The pro-inflammatory cytokine tumor necrosis factor (TNF)-alpha plays a pivotal role in the pathogenesis of rheumatoid arthritis. The mechanisms involved in regulating monocyte/macrophage TNFalpha production are not yet fully understood but are thought to involve both soluble factors and cell/cell contact with other cell types. Ligation of certain cell surface receptors, namely CD45, CD44, and CD58, can induce the production of TNFalpha in monocytes. In this paper, we investigate further the signaling pathways utilized by cell surface receptors (specifically CD45) to induce monocyte TNFalpha and compare the common/unique pathways involved with that of lipopolysaccharide. The results indicate that monocyte TNFalpha induced upon CD45 ligation or lipopolysaccharide stimulation is differentially modulated by phosphatidylinositol 3-kinase and nuclear factor-kappaB but similarly regulated by p38 mitogen-activated protein kinase. These results demonstrate that both common and unique signaling pathways are utilized by different stimuli for the induction of TNFalpha. These observations may have a major bearing on approaches to inhibiting TNFalpha production in disease where the cytokine has a pathogenic role.

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Authors
Hayes, A. L., Smith, C., Foxwell, B. M. J., & Brennan, F. M.
Affiliations
Kennedy Institute of Rheumatology (GB)
Corresponding author
Brennan, Fionula M.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
1999-11
Volume
274
Issue
47
Pages
33455-33461
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2123816477
Cited by
44
References
71
Citations by year
2026: 1 · 2017: 2 · 2016: 1 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 1
FWCI
2.34
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Israel Cancer Research Fund
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Health Sciences › Medicine › Rheumatology › Rheumatoid Arthritis Research and Therapies
  • Life Sciences › Immunology and Microbiology › Immunology › Immune Response and Inflammation
Keywords
CD45, TNF-α, monocytes, phosphatidylinositol 3-kinase, NF-κB, p38 MAPK, lipopolysaccharide, cell surface receptor signaling, rheumatoid arthritis, anti-TNF therapy, CD44, CD58
MeSH terms
Phosphoinositide-3 Kinase Inhibitors, Cells, Cultured, Enzyme Activation, Humans, Monocytes, Tumor Necrosis Factor-alpha, Signal Transduction, NF-kappa B, Leukocyte Common Antigens, Phosphatidylinositol 3-Kinases, Ribosomal Protein S6 Kinases, Mitogen-Activated Protein Kinases, p38 Mitogen-Activated Protein Kinases

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