JNK2 and IKKβ are required for activating the innate response to viral infection

被引:328
作者
Chu, WM
Ostertag, D
Li, ZW
Chang, LF
Chen, Y
Hu, YL
Williams, B
Perrault, J
Karin, M [1 ]
机构
[1] Univ Calif San Diego, Dept Pharmacol, Lab Signal Transduct & Gene Regulat, La Jolla, CA 92093 USA
[2] San Diego State Univ, Inst Mol Biol, Dept Biol, San Diego, CA 92182 USA
[3] Lerner Res Inst, Dept Canc Biol, Cleveland, OH 44195 USA
关键词
D O I
10.1016/S1074-7613(00)80146-6
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Viral infection or double-stranded (ds) RNA induce interferons (IFN) and other cytokines. Transcription factors mediating IFN induction are known, but the signaling pathways that regulate them are less clear. We now describe two such pathways. The first pathway leading to NF-kappa B depends on the dsRNA-responsive protein kinase (PKR), which in turn activates I kappa B kinase (IKK) through the IKK beta subunit. The second viral- and dsRNA-responsive pathway is PKR independent and involves Jun kinase (JNK) activation leading to stimulation of AP-1. Both IKK beta and JNK2 are essential for efficient induction of type I IFN and other cytokines in response to viral infection or dsRNA. This study establishes a general role for these kinases in activation of innate immune responses.
引用
收藏
页码:721 / 731
页数:11
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