Increased expression of pro-inflammatory cytokines and metalloproteinase-1 by TGF-β1 in synovial fibroblasts from rheumatoid arthritis and normal individuals

H. Cheon, S. J. Yu, D. H. Yoo, I. J. Chae, Gwan Gyu Song, Jeongwon Sohn

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97 Citations (Scopus)

Abstract

Transforming growth factor (TGF)-β1 is expressed abundantly in the rheumatoid synovium. In this study, the inflammatory effect of TGF-β1 in rheumatoid arthritis (RA) was investigated using cultured fibroblast-like synoviocytes (FLS) from RA and osteoarthritis (OA) patients, as well as non-arthritic individuals. mRNA expressions of IL-1β, tumour necrosis factor (TNF)-α, IL-8, macrophage inflammatory protein (MIP)-1α and metalloproteinase (MMP)-1 were increased in RA and OA FLS by TGF-β1 treatment, but not in non-arthritic FLS. Enhanced protein expression of IL-1β, IL-8 and MMP-1 was also observed in RA FLS. Moreover, TGF-β1 showed a synergistic effect in increasing protein expression of IL-1β and matrix metalloproteinase (MMP)-1 with TNFα and IL-1β, respectively. Biological activity of IL-1 determined by mouse thymocyte proliferation assay was also enhanced by 50% in response to TGF-β1 in the culture supernatant of RA FLS. DNA binding activities of nuclear factor (NF)-κB and activator protein (AP)-1 were shown to increase by TGF-β1 as well. These results suggest that TGF-β1 contributes for the progression of inflammation and joint destruction in RA, and this effect is specific for the arthritic synovial fibroblasts.

Original languageEnglish
Pages (from-to)547-552
Number of pages6
JournalClinical and Experimental Immunology
Volume127
Issue number3
DOIs
Publication statusPublished - 2002 May 6

Fingerprint

Transforming Growth Factors
Metalloproteases
Rheumatoid Arthritis
Fibroblasts
Interleukin-1
Cytokines
Interleukin-8
Osteoarthritis
Tumor Necrosis Factor-alpha
Macrophage Inflammatory Proteins
Matrix Metalloproteinase 1
Synovial Membrane
Transcription Factor AP-1
Thymocytes
Arthritis
Proteins
Joints
Synoviocytes
Inflammation
Messenger RNA

Keywords

  • IL-1β
  • IL-8
  • Metalloproteinase-1
  • MIP-1α
  • Rheumatoid arthritis
  • TGF-β1
  • TNFα

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

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abstract = "Transforming growth factor (TGF)-β1 is expressed abundantly in the rheumatoid synovium. In this study, the inflammatory effect of TGF-β1 in rheumatoid arthritis (RA) was investigated using cultured fibroblast-like synoviocytes (FLS) from RA and osteoarthritis (OA) patients, as well as non-arthritic individuals. mRNA expressions of IL-1β, tumour necrosis factor (TNF)-α, IL-8, macrophage inflammatory protein (MIP)-1α and metalloproteinase (MMP)-1 were increased in RA and OA FLS by TGF-β1 treatment, but not in non-arthritic FLS. Enhanced protein expression of IL-1β, IL-8 and MMP-1 was also observed in RA FLS. Moreover, TGF-β1 showed a synergistic effect in increasing protein expression of IL-1β and matrix metalloproteinase (MMP)-1 with TNFα and IL-1β, respectively. Biological activity of IL-1 determined by mouse thymocyte proliferation assay was also enhanced by 50{\%} in response to TGF-β1 in the culture supernatant of RA FLS. DNA binding activities of nuclear factor (NF)-κB and activator protein (AP)-1 were shown to increase by TGF-β1 as well. These results suggest that TGF-β1 contributes for the progression of inflammation and joint destruction in RA, and this effect is specific for the arthritic synovial fibroblasts.",
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AU - Yu, S. J.

AU - Yoo, D. H.

AU - Chae, I. J.

AU - Song, Gwan Gyu

AU - Sohn, Jeongwon

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