A role of monocyte chemoattractant protein-4 (MCP-4)/CCL13 from chondrocytes in rheumatoid arthritis

Takuji Iwamoto, Hiroshi Okamoto, Shu Kobayashi, Katsunori Ikari, Yoshiaki Toyama, Taisuke Tomatsu, Naoyuki Kamatani, Shigeki Momohara

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

We studied the role of monocyte chemoattractant (MCP)-4/CCL13 in the pathogenesis of rheumatoid arthritis (RA). MCP-4 was highly expressed in cartilage from RA patients. Interferon-γ significantly stimulated MCP-4/CCL13 production in human chondrocytes, and this effect was enhanced in combination with interleukin-1β or tumor necrosis factor-α. MCP-4/CCL13 induces the phosphorylation of extracellular signal-regulated kinase in fibroblast-like synoviocytes and activates cell proliferation, and PD98059 completely inhibits these effects. These data suggest that interferon-γ in combination with interleukin-1β/tumor necrosis factor-α activates the production of MCP-4/CCL13 from chondrocytes in RA joints, and that secreted MCP-4/CCL13 enhances fibroblast-like synoviocyte proliferation by activating the extracellular signal-regulated kinase mitogen-activated protein kinase cascade.

Original languageEnglish
Pages (from-to)4904-4912
Number of pages9
JournalFEBS Journal
Volume274
Issue number18
DOIs
Publication statusPublished - 2007 Sep 1

Keywords

  • Chondrocytes
  • Extracellular signal-regulated kinase (ERK)
  • Monocyte chemoattractant protein-4 (MCP-4)/CCL13
  • Rheumatoid arthritis

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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