國家衛生研究院 NHRI:Item 3990099045/15866
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/15866


    Title: Hyperglycemia facilitates EV71 replication: Insights into miR-206-mediated regulation of G3BP2 promoting EV71 IRES activity
    Authors: Lai, RH;Chow, YH;Lin, YW;Chung, NH;Nien, SW;Juang, JL
    Contributors: National Center for Geriatrics and Welfare Research;Institute of Molecular and Genomic Medicine;National Institute of Infectious Diseases and Vaccinology;Core Instrument Center
    Abstract: Background: Neurotropic virus infections actively manipulate host cell metabolism to enhance virus neurovirulence. Although hyperglycemia is common during severe infections, its specific role remains unclear. This study investigates the impact of hyperglycemia on the neurovirulence of enterovirus 71 (EV71), a neurovirulent virus relying on internal ribosome entry site (IRES)-mediated translation for replication. Methods: Utilizing hSCARB2-transgenic mice, we explore the effects of hyperglycemia in EV71 infection and elucidate the underlying mechanisms. Results: Remarkably, administering insulin alone to reduce hyperglycemia in hSCARB2-transgenic mice results in a decrease in brainstem encephalitis and viral load. Conversely, induced hyperglycemia exacerbates neuropathogenesis, highlighting the pivotal role of hyperglycemia in neurovirulence. Notably, miR-206 emerges as a crucial mediator induced by viral infection, with its expression further heightened by hyperglycemia and concurrently repressed by insulin. The use of antagomiR-206 effectively mitigates EV71-induced brainstem encephalitis and reduces viral load. Mechanistically, miR-206 facilitates IRES-driven virus replication by repressing the stress granule protein G3BP2. Conclusions: Novel therapeutic approaches against severe EV71 infections involve managing hyperglycemia and targeting the miR-206-stress granule pathway to modulate virus IRES activity.
    Date: 2024-04-22
    Relation: Theranostics. 2024 Apr 22;14(7):2706-2718.
    Link to: http://dx.doi.org/10.7150/thno.93883
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1838-7640&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:001225171300001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85194021772
    Appears in Collections:[Rai-Hua Lai] Periodical Articles
    [Lu-Hai Wang] Periodical Articles
    [Joe Yen-Hung Chow] Periodical Articles
    [Others] Periodical Articles

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