TRIM11 Negatively Regulates IFN beta Production and Antiviral Activity by Targeting TBK1

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dc.contributor.authorLee, Young-Langko
dc.contributor.authorSong, Byeong-Woonko
dc.contributor.authorPark, Chan-Kyuko
dc.contributor.authorKwon, Ki-Sunko
dc.date.accessioned2019-03-09T05:36:16Z-
dc.date.available2019-03-09T05:36:16Z-
dc.date.created2013-07-08-
dc.date.issued2013-05-
dc.identifier.citationPLOS ONE, v.8, no.5-
dc.identifier.issn1932-6203-
dc.identifier.urihttp://hdl.handle.net/10203/251240-
dc.description.abstractThe innate immune response is a host defense mechanism against infection by viruses and bacteria. Type I interferons (IFN alpha/beta) play a crucial role in innate immunity. If not tightly regulated under normal conditions and during immune responses, IFN production can become aberrant, leading to inflammatory and autoimmune diseases. In this study, we identified TRIM11 (tripartite motif containing 11) as a novel negative regulator of IFN beta production. Ectopic expression of TRIM11 decreased IFN beta promoter activity induced by poly (I: C) stimulation or overexpression of RIG-I (retinoic acid-inducible gene-I) signaling cascade components RIG-IN (constitutively active form of RIG-I), MAVS (mitochondrial antiviral signaling protein), or TBK1 (TANK-binding kinase-1). Conversely, TRIM11 knockdown enhanced IFN beta promoter activity induced by these stimuli. Moreover, TRIM11 overexpression inhibited the phosphorylation and dimerization of IRF3 and expression of IFN beta mRNA. By contrast, TRIM11 knockdown increased the IRF3 phosphorylation and IFN beta mRNA expression. We also found that TRIM11 and TBK1, a key kinase that phosphorylates IRF3 in the RIG-I pathway, interacted with each other through CC and CC2 domain, respectively. This interaction was enhanced in the presence of the TBK1 adaptor proteins, NAP1 (NF-kappa B activating kinase-associated protein-1), SINTBAD (similar to NAP1 TBK1 adaptor) or TANK (TRAF family member-associated NF-kappa B activator). Consistent with its inhibitory role in RIG-I-mediated IFN beta signaling, TRIM11 overexpression enhanced viral infectivity, whereas TRIM11 knockdown produced the opposite effect. Collectively, our results suggest that TRIM11 inhibits RIG-I-mediated IFN beta production by targeting the TBK1 signaling complex.-
dc.languageEnglish-
dc.publisherPUBLIC LIBRARY SCIENCE-
dc.subjectE3 UBIQUITIN LIGASE-
dc.subjectDOUBLE-STRANDED-RNA-
dc.subjectBINDING KINASE 1-
dc.subjectNF-KAPPA-B-
dc.subjectI INTERFERON-
dc.subjectRIG-I-
dc.subjectFAMILY PROTEINS-
dc.subjectVIRUS-INFECTION-
dc.subjectACTIVATION-
dc.subjectDEGRADATION-
dc.titleTRIM11 Negatively Regulates IFN beta Production and Antiviral Activity by Targeting TBK1-
dc.typeArticle-
dc.identifier.wosid000319036100031-
dc.identifier.scopusid2-s2.0-84877650680-
dc.type.rimsART-
dc.citation.volume8-
dc.citation.issue5-
dc.citation.publicationnamePLOS ONE-
dc.identifier.doi10.1371/journal.pone.0063255-
dc.contributor.localauthorPark, Chan-Kyu-
dc.contributor.nonIdAuthorSong, Byeong-Woon-
dc.contributor.nonIdAuthorKwon, Ki-Sun-
dc.description.isOpenAccessY-
dc.type.journalArticleArticle-
dc.subject.keywordPlusE3 UBIQUITIN LIGASE-
dc.subject.keywordPlusDOUBLE-STRANDED-RNA-
dc.subject.keywordPlusBINDING KINASE 1-
dc.subject.keywordPlusNF-KAPPA-B-
dc.subject.keywordPlusI INTERFERON-
dc.subject.keywordPlusRIG-I-
dc.subject.keywordPlusFAMILY PROTEINS-
dc.subject.keywordPlusVIRUS-INFECTION-
dc.subject.keywordPlusACTIVATION-
dc.subject.keywordPlusDEGRADATION-
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