Citrullinated Chemokines in Rheumatoid Arthritis

Abstract

Citrullination, catalysed by peptidylarginine deiminase (PAD), is a post-translational modification of arginine to citrulline, which contributes to the pathogenesis of rheumatoid arthritis (RA). We show that citrullinated epithelial derived neutrophil-activating peptide 78/CXCL5 (cit-ENA-78/CXCL5) is significantly higher in RA synovial fluids(SFs) compared to osteoarthritis (OA) and other inflammatory rheumatic diseases (OD) SFs, and its concentration correlates with RA disease activity. Citrullinated chemokine concentrations were measured by enzyme linked immunosorbent assay (ELISA) in RA and normal (NL) sera and in RA, osteoarthritis (OA), and other inflammatory rheumatic disease (OD) synovial fluids (SFs). The correlation between the citrullinated chemokine levels and clinical data was analyzed. A strong correlation was found between the amounts of citENA-78/CXCL5 and Creactive protein or erythrocyte sedimentation rate (ESR) in RA SFs. These results indicate that citENA-78/CXCL5may have novel inflammatory properties in RA pathogenesis.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2015
Accession Number
AD1002603

Entities

People

  • David A. Fox

Organizations

  • Board of Regents of the University of Michigan

Tags

DTIC Thesaurus Topics

  • Arthritis
  • Blood
  • Cell Physiological Processes
  • Cells
  • Chemical Synthesis
  • Chemistry
  • Health Services
  • Immunoproteins
  • Medical Personnel
  • Proteins
  • Proteomics
  • Stem Cells

Fields of Study

  • Medicine

Readers

  • Immunology and Pathology