IL-17 increased the production of vascular endothelial growth factor in rheumatoid arthritis synoviocytes

Clin Rheumatol. 2006 Feb;25(1):16-20. doi: 10.1007/s10067-005-1081-1. Epub 2005 Sep 15.


Interleukin-17 (IL-17) is a proinflammatory cytokine that is expressed in the synovium T cells of rheumatoid arthritis (RA). This cytokine is implicated in the inflammation and destruction of the joint. However, the role of IL-17 on the production of vascular endothelial factor (VEGF) important to synovial proliferation has still not been identified. In this study, we investigated the effect on cultured rheumatoid fibroblast-like synoviocytes (FLS) of the IL-17 on the production and expression of VEGF, which play an important role in angiogenesis in rheumatoid synovium. IL-17 increased the production of VEGF dose dependently and the mRNA expression of VEGF. These results suggest that IL-17 might influence angiogenesis in RA by up-regulating the expression of VEGF in rheumatoid FLS.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arthritis, Rheumatoid / metabolism*
  • Dose-Response Relationship, Drug
  • Drug Combinations
  • Enzyme-Linked Immunosorbent Assay
  • Fibroblasts / drug effects
  • Fibroblasts / metabolism
  • Gene Expression / drug effects
  • Humans
  • Interleukin-17 / pharmacology*
  • RNA, Messenger / metabolism
  • Reverse Transcriptase Polymerase Chain Reaction
  • Synovial Membrane / drug effects*
  • Synovial Membrane / metabolism
  • Vascular Endothelial Growth Factor A / genetics
  • Vascular Endothelial Growth Factor A / metabolism*


  • Drug Combinations
  • Interleukin-17
  • RNA, Messenger
  • VEGFA protein, human
  • Vascular Endothelial Growth Factor A