Modern Rheumatology

, Volume 19, Issue 4, pp 372–378

Etanercept reduces the serum levels of macrophage chemotactic protein-1 in patients with rheumatoid arthritis

  • Yasunori Kageyama
  • Hayato Kobayashi
  • Norihiko Kato
  • Masahiro Shimazu
Original Article

DOI: 10.1007/s10165-009-0175-z

Cite this article as:
Kageyama, Y., Kobayashi, H., Kato, N. et al. Mod Rheumatol (2009) 19: 372. doi:10.1007/s10165-009-0175-z

Abstract

This study was performed to analyze the effect of etanercept, the soluble tumor necrosis factor-α (TNF-α) receptor, on the serum levels of several chemokines including monocyte chemotactic protein-1 (MCP-1), regulated upon activation normal T expressed and presumably secreted (RANTES), and granzyme B in rheumatoid arthritis (RA) patients. Twenty-eight patients with RA were administered etanercept once or twice a week for more than 6 months. Clinical and laboratory parameters were measured and serum levels of MCP-1, RANTES, and granzyme B were determined using enzyme-linked immunosorbent assay (ELISA) kits at baseline and at 3 and 6 months after the initial treatment. In addition, the levels of MCP-1, RANTES, and granzyme B produced by cultured synovial cells stimulated with TNF-α were measured. A significant decrease in serum MCP-1 levels was observed at 3 and 6 months after initial treatment with etanercept. Serum RANTES and granzyme B levels did not show significant changes. TNF-α induced MCP-1, RANTES, and granzyme B production in cultured synovial cells from RA patients. Serum MCP-1 levels were significantly correlated with the disease activity scores of 28 joints combined with CRP (DAS28-CRP), indicating the role of MCP-1 in the pathogenesis of rheumatoid inflammation. This study demonstrated that a reduction of MCP-1 production in RA patients was a newly determined effect of etanercept. Another cascade not associated with TNF-α may induce granzyme B and RANTES production in RA patients.

Keywords

Rheumatoid arthritisMonocyte chemotactic protein-1Etanercept

Copyright information

© Japan College of Rheumatology 2009

Authors and Affiliations

  • Yasunori Kageyama
    • 1
  • Hayato Kobayashi
    • 1
  • Norihiko Kato
    • 1
  • Masahiro Shimazu
    • 2
  1. 1.Department of Orthopaedic SurgeryHeisei Memorial HospitalFujiedaJapan
  2. 2.Department of Orthopaedic SurgeryShimazu ClinicFujiedaJapan