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IL-4 Can Inhibit IL-17 Production in Collagen Induced Arthritis

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Author(s): Siamak Sandoghchian Shotorbani | Yue Zhang | Samuel Essien Baidoo | Huaxi Xu | Mohammad Ahmadi

Journal: Iranian Journal of Immunology
ISSN 1735-1383

Volume: 8;
Issue: 4;
Start page: 209;
Date: 2011;
Original page

Keywords: CIA | IL-4 | IL-17

ABSTRACT
Background: IL-4 is a cytokine that induces differentiation of naive helper T cells intoTh2 cells. Once activated by IL-4, Th2 cells subsequently produce additional IL-4.Objective: To examine the effect of IL-4 on IL-17 production and its effect in Collagen-Induced Arthritis (CIA) mice. Method: In this study, a chicken collagen-II-inducedexperimental arthritis (CIA) model was used in DBA/1 mice to investigate the relationshipbetween IL-4 and IL-17 as well as other inflammatory factors. On the 38thday after the mice were induced with CIA, the expression of IL-17 and IL-4 as well asIFN-γ and IL-13 in sera of the mice was measured by QRT-PCR and ELISA. Result:The result of QRT-PCR analysis of IL-17 and IL-4 mRNA levels in the spleen showedthat IL-17 is increased significantly at the onset of CIA in the spleen (p
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