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Adiponectin may contribute to synovitis and joint destruction in rheumatoid arthritis by stimulating vascular endothelial growth factor, matrix metalloproteinase-1, and matrix metalloproteinase-13 expression in fibroblast-like synoviocytes more than proin

Abstract：

INTRODUCTION:The role of adiponectin in the pathogenesis of arthritis is still controversial. This study was performed to examine whether adiponectin is involved in joint inflammation and destruction in rheumatoid arthritis (RA) in relation to the expression of vascular endothelial growth factor (VEGF) and matrix metalloproteinases (MMPs). METHODS:Synovial cells from RA patients were treated with adiponectin or interleukin (IL)-1beta for 24 hours. The culture supernatant was collected and analyzed for the levels of IL-6, IL-8, prostaglandin E2 (PGE2), VEGF, and MMPs by enzyme-linked immunosorbent assay. The levels of adiponectin, VEGF, MMP-1, and MMP-13 in the joint fluids from 30 RA or osteoarthritis (OA) patients were also measured. RESULTS:Adiponectin at the concentration of 10 microg/mL stimulated the production of IL-6, IL-8, and PGE2 in RA fibroblast-like synoviocytes (FLSs), although the level of these was much lower than with 1 ng/mL IL-1beta. However, adiponectin stimulated the production of VEGF, MMP-1, and MMP-13 at the same level as IL-1beta. In addition, the level of adiponectin and MMP-1 in the joint fluid of RA patients was significantly higher than in OA patients. Adiponectin was positively correlated with VEGF in RA patients but not in OA patients, while the level of MMPs in joint fluid was not correlated with adiponectin in either RA or OA patients. CONCLUSIONS:Adiponectin may play a significant role in the pathogenesis of RA by stimulating the production of VEGF and MMPs in FLSs, leading to joint inflammation and destruction, respectively.

journal_name

Arthritis Res Ther

journal_title

Arthritis research & therapy

authors

Choi HM,Lee YA,Lee SH,Hong SJ,Hahm DH,Choi SY,Yang HI,Yoo MC,Kim KS

doi

10.1186/ar2844

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

R161

issue

eissn

1478-6354

issn

1478-6362

pii

ar2844

journal_volume

pub_type

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Adiponectin may contribute to synovitis and joint destruction in rheumatoid arthritis by stimulating vascular endothelial growth factor, matrix metalloproteinase-1, and matrix metalloproteinase-13 expression in fibroblast-like synoviocytes more than proin