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IL-17A, IL-22, and IL-23 as Markers of Psoriasis Activity: A Cross-sectional, Hospital-based Study
Christina Fotiadou1, Elizabeth Lazaridou2, Eleni Sotiriou2
1First Department of Dermatology-Venereology, Aristotle University Medical School, Thessaloniki, Greece cifotiadou@hotmail.com.
Introduction:
T-helper 1 (Th1), Th17 cells, and their related cytokines are implicated in psoriasis pathogenesis although the contribution of each group of cytokines in psoriasis activity has not been fully clarified.
Objectives:
To investigate whether Th17-related cytokines are associated with psoriasis activity.
Methods:
The serum levels of interleukin (IL)-1β, 6, 8, 17Α, 22, 23, and tumor necrosis factor-α (TNFα) were measured with flow cytometry in 35 patients with plaque psoriasis (21 with stable and 14 with active disease) and in 20 healthy controls.
Results:
Interleukin-6, 8, 17A, 22, 23, and TNFα were significantly elevated in psoriasis patients compared with controls. In the sensitivity analyses, patients with active disease showed significantly increased levels of IL-17A, IL-23, and IL-22 as compared to the group of patients with stable psoriasis.
Conclusions:
Our study highlights a possible crucial role of IL-17A, IL-22, and IL-23 in the activity of psoriasis and the early stages of the disease.
