Pathologic finding of increased expression of interleukin-17 in the synovial tissue of rheumatoid arthritis patients

Ning Li, Jun C. Wang, Toong H. Liang, Ming H. Zhu, Jia Y. Wang, Xue L. Fu, Jie R. Zhou, Song G. Zheng, Paul Chan, Jie Han

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Rheumatoid arthritis (RA) is a common autoimmune disease of chronic systemic inflammatory disorder that will affect multiple tissues and organs such as skin, heart or lungs; but it principally attacks the joints, producing a nonsuppurative inflammatory and proliferative synovitis that often progresses to major damaging of articular cartilage and joint ankylosis. Although the definite etiology is still unknown, recent studies suggest that T-helper cells (Th17) may play a pivotal role in the pathogenesis of RA. And interleukin-17 (IL-17), which is a cytokine of Th17 cells, may be a key factor in the occurrence of RA. The binding of IL-17 to specific receptor results in the expression of fibroblasts, endothelial and epithelial cells and also synthesis of several major factors such as tumor necrosis factor alpha (TNF-α), IL-1β that result in the structural damage of RA joints. Though some previous studies have shown that IL-17 exists in the synovium of RA, few has definite proof quantitatively by pathology about its existence in synovial membrane. This study comprised of 30 RA patients and 10 healthy control, pathologic study of the synovial membrane showed increased expression of IL-17 in the synovial tissue of RA patients, the intensity is compatible with clinical severity of disease as validated by DAS28 score and disease duration. Northern blot study also confirmed the increased expression of IL-17 in the synovial tissues. This study sheds further light that IL-17 may be a key factor in the pathogenesis of RA and a determinant of disease severity.

Original languageEnglish
Pages (from-to)1375-1379
Number of pages5
JournalInternational Journal of Clinical and Experimental Pathology
Volume6
Issue number7
Publication statusPublished - 2013

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Interleukin-17
Rheumatoid Arthritis
Synovial Membrane
Joints
Th17 Cells
Ankylosis
Synovitis
Articular Cartilage
Helper-Inducer T-Lymphocytes
Interleukin-1
Northern Blotting
Autoimmune Diseases
Endothelial Cells
Tumor Necrosis Factor-alpha
Fibroblasts
Epithelial Cells
Pathology
Cytokines
Lung
Skin

Keywords

  • Interleukin-17
  • Rheumatoid arthritis
  • Synovitis

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

Cite this

Pathologic finding of increased expression of interleukin-17 in the synovial tissue of rheumatoid arthritis patients. / Li, Ning; Wang, Jun C.; Liang, Toong H.; Zhu, Ming H.; Wang, Jia Y.; Fu, Xue L.; Zhou, Jie R.; Zheng, Song G.; Chan, Paul; Han, Jie.

In: International Journal of Clinical and Experimental Pathology, Vol. 6, No. 7, 2013, p. 1375-1379.

Research output: Contribution to journalArticle

Li, N, Wang, JC, Liang, TH, Zhu, MH, Wang, JY, Fu, XL, Zhou, JR, Zheng, SG, Chan, P & Han, J 2013, 'Pathologic finding of increased expression of interleukin-17 in the synovial tissue of rheumatoid arthritis patients', International Journal of Clinical and Experimental Pathology, vol. 6, no. 7, pp. 1375-1379.
Li, Ning ; Wang, Jun C. ; Liang, Toong H. ; Zhu, Ming H. ; Wang, Jia Y. ; Fu, Xue L. ; Zhou, Jie R. ; Zheng, Song G. ; Chan, Paul ; Han, Jie. / Pathologic finding of increased expression of interleukin-17 in the synovial tissue of rheumatoid arthritis patients. In: International Journal of Clinical and Experimental Pathology. 2013 ; Vol. 6, No. 7. pp. 1375-1379.
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