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대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제46권
발행연도
2014.1
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1 - 6 (6page)

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Dendritic cells (DCs), which are regarded as the most potent antigen-presenting cells, are involved in innate and adaptiveimmunity. Upon uptake of pathogens, DCs express cell surface markers and secrete cytokines. In this study, we analyzedproduction of cytokines and found that interleukin (IL)-10 and transforming growth factor (TGF)-b production significantlyincreased in bone marrow-derived DCs and a mouse DC line, DC2.4, after treatment with crude antigen (CA) from liver fluke,Clonorchis sinensis. However, expression patterns of several activation molecules did not change. In addition, followingtreatment of DC2.4 cells with antigen from the lung fluke, Paragonimus westermani, production of IL-10 and TGF-bsignificantly increased compared with groups treated with other parasite antigens, Spirometra erinacei plerocercoid CA andEchinococcus granulosus hydatid cystic fluid. We also found that treatment of DC2.4 cells with C. sinensis CA resulted in rapidand significant phosphorylation of extracellular signal-regulated kinase 1/2, a mitogen-activated protein kinase. Followingtreatment of DC2.4 cells with C. sinensis CA, treatment with an inhibitor specific to an extracellular signal-regulated kinaseinhibited production of IL-10 and TGF-b. Our results suggest that CA from C. sinensis has a role in the anti-inflammatoryfunction of DC cells by inducing IL-10 and TGF-b through activation of extracellular signal-regulated kinase 1/2.

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