Journal
ALLERGY
Volume 70, Issue 3, Pages 310-318Publisher
WILEY
DOI: 10.1111/all.12558
Keywords
cytokines; intravenous immunoglobulin resistance; Kawasaki disease; regulatory T cells; T-helper 17 cells
Categories
Funding
- National Science Council, Taiwan [NSC 102-2314-B-182-053-MY3]
- Chang Gung Memorial Hospital, Taiwan [CMRPG8C1081, CMRPG8B0211]
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BackgroundKawasaki disease is a vasculitis most commonly afflicting children <5years of age. Many autoimmune diseases are associated with up-regulation of T helper (Th) 17 cells, and down-regulation Treg cells. Few studies have examined the Th17/Treg expression in Kawasaki disease. MethodsBlood samples were obtained from 186 children with Kawasaki disease at 24h before IVIG therapy, followed by 3days and 21days after IVIG therapy. Thirty children with an acute febrile infectious disease and 30 healthy children were obtained as control. Plasma levels of Th17- and Treg-related cytokines including IL-6, IL-17A, IL-10, TGF-, and mRNA expression levels of RORt and Foxp3 were tested. ResultsPatients with Kawasaki disease had higher levels of plasma IL-17A (25.353.21 vs 7.78 +/- 1.78pg/ml, P<0.001) and IL-6 (152.29 +/- 21.94 vs 38.63 +/- 12.40pg/ml, P<0.001) when compared to the febrile control group. IVIG resulted in a reduction in IL-6 and IL-17A at both 3 and 21days after IVIG therapy. FoxP3 levels increased significantly 3days after IVIG therapy (2.28 +/- 0.34 vs 0.88 +/- 0.14, P<0.001). IVIG resistance was associated with higher levels of IL-10 and IL-17A. ConclusionKawasaki disease was associated with higher IL-17A and IL-6, a cytokine profile similar to other autoimmune diseases. IVIG therapy resulted in increased expression of Treg-related FoxP3. IVIG resistance was associated with higher levels of IL-10 and IL-17A. Our findings provide further evidence that Kawasaki disease is an autoimmune-like disease.
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