期刊
FEBS LETTERS
卷 588, 期 9, 页码 1692-1698出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.febslet.2014.03.013
关键词
MicroRNA-93; LPS; IRAK4
资金
- National Natural Science Foundation of China [81170862, 81300753]
- Shanghai Jiaotong University [BXJ201231]
Endotoxin-induced uveitis (EIU) is an animal model of acute ocular inflammation for the study of human endogenous anterior uveitis. The mechanisms accounting for the development of ocular inflammation remain hazy. MicroRNAs (mi-RNAs) have been proposed as novel regulators of inflammation. It remains unclear whether a microRNA-mediated regulatory mechanism is involved in LPS-induced EIU. In this study, we report that miR-93 expression in the eyes of EIU rats and LPS-stimulated macrophages is significantly decreased. We also show that miR-93 inhibits NF-kappa B activation and pro-inflammatory cytokines by targeting IRAK4 expression. We further demonstrate that miR-93 inhibits IRAK4 expression by binding directly to the 3'-UTR of IRAK4. Our findings suggest that miR-93 is a negative regulator of the immune response in EIU. (C) 2014 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.
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