title: Effect of pro-inflammatory/anti-inflammatory agents on cytokine secretion by peripheral blood mononuclear cells in rheumatoid arthritis and systemic lupus erythematosus.
abstract: We studied a well-selected population of patients with active rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE) without immunosuppressive therapy. Control and patient peripheral blood mononuclear cells (PBMC) were incubated with IL-1beta, IL-10, TGF-beta or LPS for 20 h and the in vitro basal and stimulated secretions of IL-6, TNF-alpha, IL-1beta and IL-1ra were measured by ELISA. We found that in the SLE patients the basal secretion of IL-6 was significantly lower and that of IL-1ra significantly higher than in control subjects, while in the RA group the basal IL-1ra secretion was higher than in healthy subjects. SLE and RA PBMC responded to LPS and IL-1beta reaching higher cytokine secretion values than controls. The in vitro response of SLE and RA PBMC to TGFbeta was normal, while that to IL-10 was defective: IL-10 was able to stimulate the production of IL-6 and IL-1ra in PBMC from normal subjects, but it was unable to enhance IL-6 secretion in RA cells and it was also completely ineffective in inducing IL-1ra secretion in both SLE and RA PBMC. Our work add new data useful for the evaluation of IL-10 and IL-1ra as therapeutic agents in rheumatic diseases.
authors.affiliation: Institute of General Pathology, Catholic University, Largo Franesco Vito, 1, 00168 Rome, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Scuderi
authors.forename: R
authors.initials: R
authors.lastname: Convertino
authors.forename: N
authors.initials: N
authors.lastname: Molino
authors.forename: C
authors.initials: C
authors.lastname: Provenzano
authors.forename: M
authors.initials: M
authors.lastname: Marino
authors.forename: A
authors.initials: A
authors.lastname: Zoli
authors.forename: E
authors.initials: E
authors.lastname: Bartoccioni
mesh_terms: D000293:Adolescent; D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology; D001172:Arthritis, Rheumatoid / Q000276:immunology*; D016022:Case-Control Studies; D016207:Cytokines / Q000378:metabolism*; D005260:Female; D006801:Humans; D066298:In Vitro Techniques; D018836:Inflammation Mediators / Q000494:pharmacology; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1 / Q000378:metabolism / Q000494:pharmacology; D016753:Interleukin-10 / Q000494:pharmacology; D015850:Interleukin-6 / Q000378:metabolism; D007963:Leukocytes, Mononuclear / Q000187:drug effects / Q000276:immunology; D008070:Lipopolysaccharides / Q000494:pharmacology; D008180:Lupus Erythematosus, Systemic / Q000276:immunology*; D008875:Middle Aged; D011994:Recombinant Proteins / Q000494:pharmacology; D012795:Sialoglycoproteins / Q000378:metabolism; D016212:Transforming Growth Factor beta / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D016207:Cytokines; C507763:IL1RN protein, human; D018836:Inflammation Mediators; D053590:Interleukin 1 Receptor Antagonist Protein; D007375:Interleukin-1; D015850:Interleukin-6; D008070:Lipopolysaccharides; D011994:Recombinant Proteins; D012795:Sialoglycoproteins; D016212:Transforming Growth Factor beta; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10