Journal
LIFE SCIENCES
Volume 69, Issue 16, Pages 1861-1869Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0024-3205(01)01264-4
Keywords
vascular endothelial growth factor (VEGF); vascular permeability factor (VPF); rheumatoid arthritis; disease activity; clinical studies
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To evaluate vascular endothelial growth factor (VEGF) levels in relation to disease activity in rheumatoid arthritis (RA), VEGF in the serum of 155 patients with RA and 75 healthy control subjects was quantified by our highly sensitive enzyme-linked immunosorbent assay. VEGF levels were found to correlate with the articular index (AI) and Lansbury's activity index (LI). Patients with RA had a mean serum VEGF concentration of 153.5 +/- 111.8 pg/ml, which was significantly higher than control subjects (104.8 +/- 65.7 pg/ml; P<0.01). VEGF concentration was elevated significantly according to disease progression as expressed by stages I to IV and correlated with AI (r=0.530, P<0.0001) and LI (r=0.688, P<0.0001) in stages I and II as well as with the conventional erythrocyte sedimentation rate or serum C-reactive protein concentration. Serum VEGF levels may therefore be valuable as a marker of disease activity in patients with early RA, and this cytokine may play a significant role in the pathophysiology of RA. (C) 2001 Elsevier Science Inc. All rights reserved.
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