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  • Title: Macrophage migration inhibitory factor isolated from a parasite inhibited Th2 cytokine production in PBMCs of atopic asthma patients.
    Author: Park HK, Cho MK, Park HY, Kim KU, Kim YS, Lee MK, Park SK, Kim DH, Yu HS.
    Journal: J Asthma; 2012 Feb; 49(1):10-5. PubMed ID: 22149098.
    Abstract:
    BACKGROUND: In a previous study, we demonstrated that the human macrophage migration inhibitory factor (MIF)-like protein (As-MIF) isolated from helminths could inhibit allergic airway inflammation via the recruitment of CD4(+)CD25(+)Foxp3(+) T cells. OBJECTIVE: To evaluate the clinical importance of As-MIF as an antiasthma drug, we evaluated immune responses after recombinant As-MIF (rAs-MIF) treatment in peripheral blood mononuclear cell (PBMC) cultures. METHODS: PBMC was isolated from 10 patients with atopic asthma, 8 patients with nonatopic asthma, and 12 nonatopic healthy subjects, and various concentrations of rAs-MIF were transferred into the PBMC culture medium. After 3 days, we measured the levels of T helper 2 and T helper 1 cytokines via ELISA. RESULTS: In atopic asthma, IL-4 and IL-5 production was significantly reduced in the PBMC cultures after rAs-MIF treatment. These inhibitory effects were not observed in the nonatopic asthma group. By way of contrast, IL-10 production in the PMBC cultures was significantly increased after rAs-MIF treatment in all experimental groups. CONCLUSION: The results of this study are similar to those previously reported in a mouse study, suggesting that As-MIF might be a candidate for the specific treatment of asthma.
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