HSPD1 interacts with IRF3 to facilitate interferon-beta induction.
HSPD1 interacts with IRF3 to facilitate interferon-beta induction.
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DOI:
10.1371/journal.pone.0114874
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Zhang A
中科院分区:
文献类型:
--
作者:
Lin L;Pan S;Zhao J;Liu C;Wang P;Fu L;Xu X;Jin M;Zhang A
The production of IFN- I (IFN-α/β) is one of the earliest and most important host-protective responses. Interferon regulatory factor 3 (IRF3) is a critical transcriptional factor in the IFN-β signaling pathway. Although significant progress has been achieved in the regulation of IRF3, the process may be more complicated than previously considered. In the present study, heat shock protein 60 (HSP60, HSPD1) was identified as a novel IRF3-interacting protein. Overexpression of HSPD1 facilitated the phosphorylation and dimerization of IRF3 and enhanced IFN-β induction induced by SeV infection. In contrast, knockdown of endogenous HSPD1 significantly inhibited the signaling pathway. Furthermore, HSPD1 enhanced activation of the IFN-β promoter mediated by RIG-I, MDA-5, MAVS, TBK1 and IKKε but not IRF3/5D, a mock phosphorylated form of IRF3. The present study indicated that HSPD1 interacted with IRF3 and it contributed to the induction of IFN-β.
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