Clinical biochemistry · 1998
Comparative study of serum and synovial fluid interleukin-11 levels in patients with various arthritides.
Сравнительное исследованиеСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Trontzas P, Kamper E F, Potamianou A, Kyriazis N C, Kritikos H, Stavridis J
Аннотация
OBJECTIVE: To determine the levels of serum and synovial fluid (SF) interleukin (IL)-11 in patients with various arthritides and estimate the contribution of IL-11 to acute phase response (APR).
DESIGN AND METHODS: Serum and SF IL-11 were measured by ELISA in patients with rheumatoid arthritis (RA, n = 31), seronegative spondyloarthritis (SSA, n = 23), gout (GT, n = 14) and osteoarthritis (OA, n = 20) and were correlated with ESR and acute phase proteins as well as with cytokines IL-1 alpha, IL-1 beta, IL-6, and TNF alpha.
RESULTS: IL-11 was detected in both serum and SF in each group, with IL-11 being statistically higher in SF than serum in all groups, suggesting reduced catabolism or increased synthesis of IL-11 intra-articularly. Median SF IL-11 levels were higher in OA patients than in other groups and in the treated than in the untreated RA subgroup. Moreover, serum and SF IL-11 were correlated significantly with each other, and moderately with the other cytokines examined in RA, SSA, and GT, but not in OA patients, while a significant negative correlation was found with a few of the inflammatory markers examined in each group.
CONCLUSIONS: Our findings provide evidence of extensive intra-articular expression of IL-11 in arthritides, especially in OA and treated RA patients, suggesting a protective role for IL-11 in joints, probably through the induction of tissue inhibitor of metalloproteinases.
DESIGN AND METHODS: Serum and SF IL-11 were measured by ELISA in patients with rheumatoid arthritis (RA, n = 31), seronegative spondyloarthritis (SSA, n = 23), gout (GT, n = 14) and osteoarthritis (OA, n = 20) and were correlated with ESR and acute phase proteins as well as with cytokines IL-1 alpha, IL-1 beta, IL-6, and TNF alpha.
RESULTS: IL-11 was detected in both serum and SF in each group, with IL-11 being statistically higher in SF than serum in all groups, suggesting reduced catabolism or increased synthesis of IL-11 intra-articularly. Median SF IL-11 levels were higher in OA patients than in other groups and in the treated than in the untreated RA subgroup. Moreover, serum and SF IL-11 were correlated significantly with each other, and moderately with the other cytokines examined in RA, SSA, and GT, but not in OA patients, while a significant negative correlation was found with a few of the inflammatory markers examined in each group.
CONCLUSIONS: Our findings provide evidence of extensive intra-articular expression of IL-11 in arthritides, especially in OA and treated RA patients, suggesting a protective role for IL-11 in joints, probably through the induction of tissue inhibitor of metalloproteinases.
Предметные рубрики MeSH
Acute-Phase ProteinsAcute-Phase ReactionArthritisArthritis, RheumatoidBiomarkersC-Reactive ProteinCeruloplasminCytokinesEnzyme-Linked Immunosorbent AssayFerritinsFibrinogenGoutHaptoglobinsHumansImmunodiffusionInterleukin-1Interleukin-11Interleukin-6Nephelometry and TurbidimetryOrosomucoidOsteoarthritisPrealbuminProspective StudiesStatistics as TopicStatistics, NonparametricSynovial FluidTransferrinTumor Necrosis Factor-alphaalpha 1-Antitrypsinalpha-Macroglobulinsbeta 2-Microglobulin