ArticleInflammopharmacology2012
Effects of TNF inhibitor on innate inflammatory and Th17 cytokines in stimulated whole blood from rheumatoid arthritis patients.
Article in Inflammopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
3 citing papers in PubMed, 9 citations in OpenAlex.
- Cytokines in the Germinal Center Niche.Antibodies (Basel, Switzerland) · 2016Review
- Haptoglobin-α1, -α2, vitamin D-binding protein and apolipoprotein C-III as predictors of etanercept drug response in rheumatoid arthritis.Arthritis research & therapy · 2015Article
- Clinical biomarkers and pathogenic-related cytokines in rheumatoid arthritis.Journal of immunology research · 2014Review
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Authors and funding
8 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundRecent studies point to important roles for IL-17 and Th17 cells in sustaining chronic inflammation and articular destruction in rheumatoid arthritis (RA). We investigated the effects of TNF inhibitor on innate inflammatory and Th17 cytokines production by ex vivo lipopolysaccharide (LPS)-stimulated whole blood in patients with RA and the associations of cytokine levels in whole blood cultures with autoantibodies and markers of disease activity. MATERIALS AND
methodsWhole blood cultures from 18 healthy volunteers and 19 RA patients on etanercept therapy were stimulated with LPS and the production of IL-6, TNF-α, IL-23, IL-17A and IL-21 was measured by ELISA.
resultsAfter stimulation with LPS, the interleukin (IL)-17A (p = 0.020) and IL-21 (p = 0.0001) secretions were significantly higher in patients with RA than in controls, while the TNF-α (p = 0.002) was significantly lower at baseline. Etanercept significantly decreased IL-21 production (p = 0.007), while IL-6 production (p = 0.005) significantly increased after 6 months of therapy. IL-21 significantly correlated with RF (r = 0.917, p < 0.01) and antimutated citrullinated vimentin antibodies (r = 0.770, p < 0.01) at baseline. Logistic regression analysis revealed that baseline IL-21 levels (p = 0.004) were significant predictors of DAS28-ESR at 6 months follow-up. DISCUSSION: Stimulation with LPS increased production of Th17 cytokines in whole blood cultures in patients with RA. Etanercept therapy decreased IL-21 secretion, while the capacity of whole blood cells to produce IL-6 increased. IL-21 production is strongly associated with the levels of autoantibodies. Our findings suggest that IL-21 production in LPS-stimulated whole blood cultures may be predictive of clinical response to etanercept treatment in patients with RA.
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