title: Effects of nonsteroidal anti-inflammatory drugs on interleukin-1 receptor antagonist production in cultured human peripheral blood mononuclear cells.
abstract: The effects of nonsteroidal anti-inflammatory drugs (NSAIDs), mofezolac, indomethacin, sodium diclofenac, and zaltoprofen, on the production of interleukin-1 receptor antagonist (IL-1ra) were examined in cultured human peripheral blood mononuclear cells (PBMC). Among the NSAIDs tested, mofezolac and sodium diclofenac were found to stimulate the mRNA expression for IL-1ra without affecting the mRNA expression for IL-1 beta. These two drugs also stimulated the secretion of IL-1ra by PBMC in the absence of bacterial lipopolysaccharide (LPS), however, the stimulatory effect of sodium diclofenac diminished in the presence of LPS. Mofezolac suppressed the mRNA expression for IL-1 beta in PBMC stimulated with exogenous IL-1 beta, indicating the secreted IL-1ra in the presence of mofezolac to be biologically active. Since IL-1ra suppresses the function of IL-1, a pro-inflammatory cytokine, the stimulatory effect of such NSAIDs as mofezolac on IL-1ra production could also be one of the mechanisms involved in its anti-inflammatory and antinociceptive actions.
authors.affiliation: Research Laboratories, Yoshitomi Pharmaceutical Industries Ltd, Fukuoka, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Kusuhara
authors.forename: H
authors.initials: H
authors.lastname: Matsuyuki
authors.forename: T
authors.initials: T
authors.lastname: Okumoto
mesh_terms: D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology*; D002478:Cells, Cultured; D006801:Humans; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1 / Q000235:genetics; D007555:Isoxazoles / Q000494:pharmacology; D007963:Leukocytes, Mononuclear / Q000737:chemistry* / Q000187:drug effects / Q000378:metabolism; D012333:RNA, Messenger / Q000032:analysis / Q000096:biosynthesis; D012795:Sialoglycoproteins / Q000097:blood* / Q000235:genetics
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; C507763:IL1RN protein, human; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1; D007555:Isoxazoles; D012333:RNA, Messenger; D012795:Sialoglycoproteins; C054999:mofezolac