ArticleFrontiers in immunology2026
Elevated serum interleukin-38 levels in polymyositis and dermatomyositis: diagnostic implications and correlations with inflammatory markers.
Article in Frontiers in immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Interleukin (IL)-38 has been recently identified as an anti-inflammatory cytokine. Polymyositis (PM) and dermatomyositis (DM) are two prevalent clinical inflammatory myopathies. This study aims to investigate the serum concentrations of IL-38 in patients with PM/DM and their association with these conditions. Methods: Serum IL-38 levels were quantified using the enzyme-linked immunosorbent assay method in a cohort of 117 subjects, comprising 77 patients with myositis (8 with PM and 69 with DM) and 40 healthy controls. A comprehensive assessment of preliminary clinical characteristics was conducted for each participant through physical examination and review of medical records. The diagnostic utility of IL-38 in PM/DM was evaluated using the receiver operating characteristic curve. Results: The findings revealed that serum IL-38 concentrations were significantly elevated in patients with PM/DM compared to the control group, irrespective of the presence of interstitial lung disease. No significant difference was observed between the PM and DM groups. Furthermore, IL-38 demonstrated a positive correlation with the visual analogue scale, lactate dehydrogenase (LDH), and other inflammatory markers. Finally, IL-38, either independently or in conjunction with LDH, exhibits significant diagnostic potential. Conclusion: The study's findings reveal that patients with PM/DM who present elevated serum levels of IL-38 also show a positive correlation with LDH levels. This suggests IL-38 may participate in modulating inflammatory immune responses in PM/DM and could serve as a potential candidate indicator for these conditions.
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