TRIM35 negatively regulates TLR7-and TLR9-mediated type I interferon production by targeting IRF7

TRIM35 negatively regulates TLR7-and TLR9-mediated type I interferon production by targeting IRF7
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TRIM35 通过靶向 IRF7 负向调节 TLR7 和 TLR9 介导的 I 型干扰素产生

DOI:
10.1016/j.febslet.2015.04.019
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发表时间:
2015-05-22
期刊:
影响因子:
3.5
通讯作者:
Sun, Bing
Sun, Bing
中科院分区:
生物学3区
文献类型:
--
作者:
Wang, Yanming;Yan, Shanshan;Sun, Bing

文献摘要

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Toll 样受体 7 (TLR7) 和 TLR9 感知病毒核酸并诱导 I 型 IFN 产生,必须对其进行适当控制以避免自身免疫性疾病。在此,我们报告了 TRIM35 对 TLR7/9 介导的 I 型 IFN 产生的负调控。 TRIM35 表达由 TLR7/9 刺激诱导,然后与 IRF7 相互作用,IRF7 是 I 型 IFN 反应的主要调节因子。此外,TRIM35 促进 IRF7 的 K48 连接泛素化,并通过蛋白酶体依赖性途径诱导其降解。因此,TRIM35 由于能够抑制 IRF7 的稳定性,因此是 TLR7/9 介导的 I 型 IFN 产生的负反馈调节因子。 (C) 2015 年欧洲生化学会联合会。由 Elsevier B.V. 出版。保留所有权利。
Toll-like receptor 7 (TLR7) and TLR9 sense viral nucleic acids and induce type I IFN production, which must be properly controlled to avoid autoimmune diseases. Here, we report the negative regulation of TLR7/9-mediated type I IFN production by TRIM35. TRIM35 expression is induced by TLR7/9 stimulation and then interacts with IRF7, which is the master regulator of type I IFN response. Furthermore, TRIM35 promotes the K48-linked ubiquitination of IRF7 and induces its degradation via a proteasome-dependent pathway. Therefore, TRIM35 is a negative feedback regulator of TLR7/9-mediated type I IFN production due to its ability to suppress the stability of IRF7. (C) 2015 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.