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    Evaluation of a recombination-resistant coronavirus as a broadly applicable, rapidly implementable vaccine platform

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    Author
    Graham, R.L.
    Deming, D.J.
    Deming, M.E.
    Date
    2018
    Journal
    Communications Biology
    Publisher
    Nature Research
    Type
    Article
    
    Metadata
    Show full item record
    See at
    https://doi.org/10.1038/s42003-018-0175-7
    Abstract
    Emerging and re-emerging zoonotic viral diseases are major threats to global health, economic stability, and national security. Vaccines are key for reducing coronaviral disease burden; however, the utility of live-attenuated vaccines is limited by risks of reversion or repair. Because of their history of emergence events due to their prevalence in zoonotic pools, designing live-attenuated coronavirus vaccines that can be rapidly and broadly implemented is essential for outbreak preparedness. Here, we show that coronaviruses with completely rewired transcription regulatory networks (TRNs) are effective vaccines against SARS-CoV. The TRN-rewired viruses are attenuated and protect against lethal SARS-CoV challenge. While a 3-nt rewired TRN reverts via second-site mutation upon serial passage, a 7-nt rewired TRN is more stable, suggesting that a more extensively rewired TRN might be essential for avoiding growth selection. In summary, rewiring the TRN is a feasible strategy for limiting reversion in an effective live-attenuated coronavirus vaccine candidate that is potentially portable across the Nidovirales order. Copyright 2018, The Author(s).
    Sponsors
    This research was supported by NIH NIAID grants U19-AI107810, R01-AI108197 and U54-AI057157 to R.S.B. and 5F32AI080148 to R.L.G.
    Keyword
    Coronavirus Infections
    Vaccines
    Identifier to cite or link to this item
    https://www.scopus.com/inward/record.uri?eid=2-s2.0-85061268931&doi=10.1038%2fs42003-018-0175-7&partnerID=40&md5=303935554b051b9e586291b236e3a061; http://hdl.handle.net/10713/12392
    ae974a485f413a2113503eed53cd6c53
    10.1038/s42003-018-0175-7
    Scopus Count
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    UMB Coronavirus Publications

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