PURPOSE: T helper 17 cells (Th17) are one of the main pathogenic effectors in autoimmune uveitis, and IL-17A is the signature cytokine of Th17 cells. This study aims to assess serum IL-17A levels in patients with autoimmune uveitis and evaluate associations between IL-17A levels and disease characteristics. METHODS: Serum IL-17A levels from 87 autoimmune uveitis patients and 60 healthy controls were assessed using an enzyme-linked immunosorbent assay. Among this cohort, 9 patients were followed longitudinally for IL-17A levels during active and inactive stages of their disease. RESULTS: Median serum IL-17A levels were higher among uveitis patients compared to controls (p < 0.0001). Moreover, IL-17A levels were elevated among uveitis patients with active disease compared to those with inactive disease (p = 0.0202). Among the 9 patients followed longitudinally, IL-17A levels were elevated during active disease compared to the inactive stage (p = 0.0078). CONCLUSIONS: Serum IL-17A levels are elevated in uveitis patients, particularly in active uveitis.
PURPOSE: T helper 17 cells (Th17) are one of the main pathogenic effectors in autoimmune uveitis, and IL-17A is the signature cytokine of Th17 cells. This study aims to assess serum IL-17A levels in patients with autoimmune uveitis and evaluate associations between IL-17A levels and disease characteristics. METHODS: Serum IL-17A levels from 87 autoimmune uveitispatients and 60 healthy controls were assessed using an enzyme-linked immunosorbent assay. Among this cohort, 9 patients were followed longitudinally for IL-17A levels during active and inactive stages of their disease. RESULTS: Median serum IL-17A levels were higher among uveitispatients compared to controls (p < 0.0001). Moreover, IL-17A levels were elevated among uveitispatients with active disease compared to those with inactive disease (p = 0.0202). Among the 9 patients followed longitudinally, IL-17A levels were elevated during active disease compared to the inactive stage (p = 0.0078). CONCLUSIONS: Serum IL-17A levels are elevated in uveitispatients, particularly in active uveitis.
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