Molecules and Cells

  • 제19권2호
  • /
  • Pages.180-184
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  • 2005
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  • 1016-8478(pISSN)
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  • 0219-1032(eISSN)
한국분자세포생물학회 (Korean Society for Molecular and Cellular Biology)
권호 표지

Expression of IL-17 Homologs and Their Receptors in the Synovial Cells of Rheumatoid Arthritis Patients

  • Hwang, Sue-Yun (Graduate School of Biology and Information Technology, Institute of Genetic Engineering, Hankyong National University) ;
  • Kim, Ho-Youn (Rheumatism Research Center, The Catholic University of Korea)
  • 투고 : 2004.09.10
  • 심사 : 2004.11.22
  • 발행 : 2005.04.30
⟨ 이전 논문 다음 논문 ⟩

초록

IL-17 is a major proinflammatory cytokine secreted by activated T-lymphocytes that accumulates in the inflamed joints of rheumatoid arthritis (RA) patients. Additional IL-17-related molecules and their receptors have been discovered and may also contribute to RA pathogenesis. We examined the expression of the prototypic IL-17 (IL-17A) and its homologs, IL-17B-F, by RT-PCR analyses of synovial fluid mononuclear cells (SFMCs) and peripheral blood mononuclear cells (PBMCs) from RA patients. We also tested for induction of the IL-17 receptor homologs upon stimulation of the fibroblast-like synoviocytes (FLSs) of RA patients with IL-17. The patients' SFMCs expressed IL-17C, E and F in addition to IL-17A. As in the case of IL-17, IL-15 appears to be the major inducer of these homologs in RA SFMCs. We detected transcripts of IL-17R, as well as those of IL-17RB, C and D, in the FLSs of RA patients. Whereas IL-17R expression increased upon in vitro stimulation with IL-17, expression of IL-17RB, C and D was unchanged. However the possibility of cross-interaction between other IL-17 homologs and receptor isoforms remains to be investigated. Our data suggest that these additional homologs should also be considered as targets for immune modulation in the treatment of RA joint inflammation.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Health & Welfare, Korean Science and Engineering Foundation

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