期刊
JOURNAL OF IMMUNOLOGY
卷 190, 期 5, 页码 2362-2371出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.1201128
关键词
-
类别
资金
- Institut de Recherche Experimentale et Clinique, Universite Catholique de Louvain-Brussels
- Fonds National de la Recherche Scientifique, Belgium [3.4465.06, 3.4522.12)]
We showed that IgA induces IL-10 in monocytes and dendritic cells. Because reciprocal inhibition exists between IL-10 and IL-12, we explored whether IgA could regulate this other immunoregulatory cytokine. In human monocytes and monocyte-derived dendritic cells preincubated with IFN-gamma before stimulation by LPS, suppression of p40 and IL-12p70 production was observed upon IgA treatment during IFN-gamma priming. Washout experiments and inhibition of IFN-gamma-induced CXCL10 (IP-10) and Fc gamma RI (CD64) indicated that inhibition by IgA occurred at both the LPS and IFN-gamma levels. Inhibition was not affected by blockade of IL-10 or MAPK but involved Fc alpha RI/CD89-mediated suppression of STAT1 phosphorylation. These data indicate that Fc alpha RI ligation on human monocytes and dendritic cells inhibits IL-12 expression and type 1 activation by interfering with STAT1 activation. The Journal of Immunology, 2013, 190: 2362-2371.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据