3.9 Article

Effect of calcitonin gene-related peptide, neuropeptide Y, substance P, and vasoactive intestinal peptide on interleukin-1β, interleukin-6 and tumor necrosis factor-alpha production by peripheral whole blood cells from rheumatoid arthritis and osteoarthritis patients

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REGULATORY PEPTIDES
卷 115, 期 1, 页码 19-24

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ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-0115(03)00127-7

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human whole blood cells; cytokine production; heuropeptides; rheumatoid arthritis; osteoarthritis

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In the present study, we have investigated the in vitro effect of calcitonin-related peptide (CGRP), neuropeptide Y (NPY), substance P (SP) and vasoactive intestinal peptide (VIP) at concentrations of 10(-8), 10(-9) and 10(-10) M on the production of different proinflammatory cytokines or chemokines such as IL-1beta, IL-6 and TNFalpha by peripheral whole blood cells from patients with rheumatoid arthritis, as well as from osteoarthritis patients studied as a control group without immunoinflammatory background. We have found that CGRP, NPY, SP and VIP stimulated significantly the production of those cytokines and chemokines in rheumatoid arthritis patients. In general, the stimulation was higher at the 10(-9) M concentration, with SP and VIP, and in rheumatoid arthritis patients compared to osteoarthritis ones. Neuropeptides did not significantly modify the LPS-induced cytokine production by whole blood cells. The results indicate that physiological concentrations of the neuropeptides studied can modulate the inflammatory and immunological response, stimulating significantly the production of inflammatory cytokines by human whole blood cells in rheumatoid arthritis patients, as well as, in a minor way, in osteoarthritis patients. (C) 2003 Elsevier Science B.V. All rights reserved.

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