Mapping the evolutionary landscape of Zika virus infection in immunocompromised mice.
Mapping the evolutionary landscape of Zika virus infection in immunocompromised mice.
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DOI:
10.1093/ve/veaa092
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发表时间:
2020-07
期刊:
影响因子:
5.3
通讯作者:
Stapleford KA
中科院分区:
文献类型:
--
作者:
Johnson KEE;Noval MG;Rangel MV;De Jesus E;Geber A;Schuster S;Cadwell K;Ghedin E;Stapleford KA
The fundamental basis of how arboviruses evolve in nature and what regulates the adaptive process remain unclear. To address this problem, we established a Zika virus (ZIKV) vector-borne transmission system in immunocompromised mice to study the evolutionary characteristics of ZIKV infection. Using this system, we defined factors that influence the evolutionary landscape of ZIKV infection and show that transmission route and specific organ microenvironments impact viral diversity and defective viral genome production. In addition, we identified in mice the emergence of ZIKV mutants previously seen in natural infections, including variants present in currently circulating Asian and American strains, as well as mutations unique to the mouse infections. With these studies, we have established an insect-to-mouse transmission model to study ZIKV evolution in vivo. We also defined how organ microenvironments and infection route impact the ZIKV evolutionary landscape, providing a deeper understanding of the factors that regulate arbovirus evolution and emergence.
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