First Author | Zhao T | Year | 2007 |
Journal | Nat Immunol | Volume | 8 |
Issue | 6 | Pages | 592-600 |
PubMed ID | 17468758 | Mgi Jnum | J:122421 |
Mgi Id | MGI:3714255 | Doi | 10.1038/ni1465 |
Citation | Zhao T, et al. (2007) The NEMO adaptor bridges the nuclear factor-kappaB and interferon regulatory factor signaling pathways. Nat Immunol 8(6):592-600 |
abstractText | Intracellular detection of RNA virus infection is mediated by the RNA helicase RIG-I, which is recruited to mitochondria by the adaptor protein MAVS and triggers activation of the transcription factors NF-kappaB, IRF3 and IRF7. Here we demonstrate that virus-induced activation of IRF3 and IRF7 depended on the NF-kappaB modulator NEMO, which acted 'upstream' of the kinases TBK1 and IKKepsilon. IRF3 phosphorylation, formation of IRF3 dimers and DNA binding, as well as IRF3-dependent gene expression, were abrogated in NEMO-deficient cells. IRF3 phosphorylation and interferon production were restored by ectopic expression of NEMO. Thus, NEMO, like MAVS, acts as an adaptor protein that allows RIG-I to activate both the NF-kappaB and IRF signaling pathways. |