The aim of this study was to assess the expression of inflammatory mediators in the affected terminal ileum and colon in pediatric Crohn disease (CD) patients with different stages of disease. Additionally, we assessed the role of efflux transporters in disease pathogenesis and their correlation with immune response. The study included 26 CD patients (10 newly diagnosed (CD-new), 8 CD-treated, and 8 CD-remission) and 15 control subjects. The terminal ileum IFN-γ, IL-6, and IL-1β were elevated in CD-new, while in the colon, the IFN-γ, IL-17A, and IL-6 were elevated in both CD-new and CD-treated subgroups. SOCS3 expression was elevated in both subgroups with active inflammation at both ileum and colon, while SOCS1 was elevated only in CD-new ileum and CD-treated colon. MDR1 expression in ileum was reduced in both subgroups with active inflammation, while BCRP was reduced only in CD-new subgroup.
European Journal of Pediatrics – Springer Journals
Published: Feb 3, 2018
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