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  • Title: Involvement of mannose-binding lectin in the pathogenesis of Kawasaki disease-like murine vasculitis.
    Author: Nakamura A, Okigaki M, Miura N, Suzuki C, Ohno N, Kametani F, Hamaoka K.
    Journal: Clin Immunol; 2014 Jul; 153(1):64-72. PubMed ID: 24721319.
    Abstract:
    Kawasaki disease (KD) is a paediatric idiopathic vasculitis. In this study, on the basis of studies using an established animal model for KD, we report that mannose-binding lectin (MBL) is involved in the pathogenesis of the disease. KD-like experimental murine vasculitis was induced by intraperitoneally administering a Candida albicans water-soluble extract (CAWS). MBL-A gradually increased in the serum of the model mice treated with CAWS. Deposition of MBL-A and MBL-C was observed in the aortic root, including the coronary arteries, which is a predilection site in experimental vasculitis. Corresponding to the distribution patterns of MBLs, marked deposition of C3/C3-derived peptides was also observed. Regarding the self-reactivity of MBLs, we observed that MBLs interacted with core histones to activate the lectin pathway. These results suggest that some types of pathogens provoke the MBL-dependent complement pathway (lectin pathway) to cause and/or exacerbate KD-like vasculitis.
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