國家衛生研究院 NHRI:Item 3990099045/13495
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/13495


    Title: Mitochondrial CMPK2 mediates immunomodulatory and antiviral activities through IFN-dependent and IFN-independent pathways
    Authors: Lai, JH;Wu, DW;Wu, CH;Hung, LF;Huang, CY;Ka, SM;Chen, A;Chang, ZF;Ho, LJ
    Contributors: Institute of Cellular and Systems Medicine
    Abstract: Mitochondria regulate the immune response after dengue virus (DENV) infection. Microarray analysis of genes identified the upregulation of mitochondrial cytidine/uridine monophosphate kinase 2 (CMPK2) by DENV infection. We used small interfering RNA-mediated knockdown (KD) and CRISPR-Cas9 knockout (KO) approaches, to investigate the role of CMPK2 in mouse and human cells. The results showed that CMPK2 was critical in DENV-induced antiviral cytokine release and mitochondrial oxidative stress and mitochondrial DNA release to the cytosol. The DENV-induced activation of Toll-like receptor (TLR)-9, inflammasome pathway, and cell migration was suppressed by CMPK2 depletion; however, viral production increased under CMPK2 deficiency. Examining mouse bone marrow-derived dendritic cells from interferon-alpha (IFN-α) receptor-KO mice and signal transducer and activator of transcription 1 (STAT1)-KO mice, we confirmed that CMPK2-mediated antiviral activity occurred in IFN-dependent and IFN-independent manners. In sum, CMPK2 is a critical factor in DENV-induced immune responses to determine innate immunity.
    Date: 2021-06-25
    Relation: iScience. 2021 Jun 25;24(6):Article number 102498.
    Link to: http://dx.doi.org/10.1016/j.isci.2021.102498
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2589-0042&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000667301700015
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85106351950
    Appears in Collections:[Ling-Jun Ho] Periodical Articles

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