Functional analysis of discoidin domain receptor 2 in synovial fibroblasts in rheumatoid arthritis

Jicun Wang, Houshan Lü, Xinping Liu, Yanchun Deng, Tiezheng Sun, Fuyang Li, Shaoping Ji, Xiaoyan Nie, Libo Yao

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

In order to know whether any protein tyrosine kinase (PTK) is involved in the over-proliferation and erosiveness of synovial fibroblasts (SF) of rheumatoid arthritis (RA) patients, RT-PCR and RNA dot blotting were done to analyse PTKs profile in RA SF. Platelet-derived growth factor receptor A (PDGFRA), insulin-like growth factor 1 receptor (IGF-1R), Janus kinase 1 (JAK1), TYK2, discoidin domain receptor 2 (DDR2), and Lyn were expressed in SF, and the expression of PDGFRA, IGF-1R, and DDR2 in SF of RA were higher than that of osteoarthritis (OA, as control). Immunobloting and gelatinase zymography showed that DDR2 in RA SF, which still secreted active matrix metalloproteinase 1 (MMP-1) in vitro, were in active form. Stimulation of collagen II could make NIH-3T3 cells (as control) produce MMP-1, which could be inhibited by soluble extracellular part of DDR2. These results indicated that the over-expression of MMP-1 in RA SF might be related to the activation of DDR2, and collagen II, act as DDR2 ligand, might be one of the stimulators of the over-expression of MMP-1 of RA SF.

Original languageEnglish (US)
Pages (from-to)161-168
Number of pages8
JournalJournal of Autoimmunity
Volume19
Issue number3
DOIs
StatePublished - Nov 2002
Externally publishedYes

Fingerprint

Rheumatoid Arthritis
Fibroblasts
Matrix Metalloproteinase 1
Somatomedin Receptors
Platelet-Derived Growth Factor Receptors
Secreted Matrix Metalloproteinases
Janus Kinase 1
Collagen
Gelatinases
NIH 3T3 Cells
Discoidin Domain Receptor 2
Osteoarthritis
Protein-Tyrosine Kinases
RNA
Ligands
Polymerase Chain Reaction

Keywords

  • Discoidin domain receptor 2
  • Matrix metalloproteinase 1
  • Protein tyrosine kinase
  • Rheumatoid arthritis
  • Synovial fibroblasts

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy

Cite this

Functional analysis of discoidin domain receptor 2 in synovial fibroblasts in rheumatoid arthritis. / Wang, Jicun; Lü, Houshan; Liu, Xinping; Deng, Yanchun; Sun, Tiezheng; Li, Fuyang; Ji, Shaoping; Nie, Xiaoyan; Yao, Libo.

In: Journal of Autoimmunity, Vol. 19, No. 3, 11.2002, p. 161-168.

Research output: Contribution to journalArticle

Wang, J, Lü, H, Liu, X, Deng, Y, Sun, T, Li, F, Ji, S, Nie, X & Yao, L 2002, 'Functional analysis of discoidin domain receptor 2 in synovial fibroblasts in rheumatoid arthritis', Journal of Autoimmunity, vol. 19, no. 3, pp. 161-168. https://doi.org/10.1006/jaut.2002.0606
Wang, Jicun ; Lü, Houshan ; Liu, Xinping ; Deng, Yanchun ; Sun, Tiezheng ; Li, Fuyang ; Ji, Shaoping ; Nie, Xiaoyan ; Yao, Libo. / Functional analysis of discoidin domain receptor 2 in synovial fibroblasts in rheumatoid arthritis. In: Journal of Autoimmunity. 2002 ; Vol. 19, No. 3. pp. 161-168.
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