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Early cellular innate immune responses drive Zika viral persistence and tissue tropism in pigtail macaques.


ABSTRACT: The immunological and virological events that contribute to the establishment of Zika virus (ZIKV) infection in humans are unclear. Here, we show that robust cellular innate immune responses arising early in the blood and tissues in response to ZIKV infection are significantly stronger in males and correlate with increased viral persistence. In particular, early peripheral blood recruitment of plasmacytoid dendritic cells and higher production of monocyte chemoattractant protein (MCP-1) correspond with greater viral persistence and tissue dissemination. We also identify non-classical monocytes as primary in vivo targets of ZIKV infection in the blood and peripheral lymph node. These results demonstrate the potential differences in ZIKV pathogenesis between males and females and a key role for early cellular innate immune responses in the blood in viral dissemination and ZIKV pathogenesis.

SUBMITTER: O'Connor MA 

PROVIDER: S-EPMC6105614 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Early cellular innate immune responses drive Zika viral persistence and tissue tropism in pigtail macaques.

O'Connor Megan A MA   Tisoncik-Go Jennifer J   Lewis Thomas B TB   Miller Charlene J CJ   Bratt Debra D   Moats Cassie R CR   Edlefsen Paul T PT   Smedley Jeremy J   Klatt Nichole R NR   Gale Michael M   Fuller Deborah Heydenburg DH  

Nature communications 20180822 1


The immunological and virological events that contribute to the establishment of Zika virus (ZIKV) infection in humans are unclear. Here, we show that robust cellular innate immune responses arising early in the blood and tissues in response to ZIKV infection are significantly stronger in males and correlate with increased viral persistence. In particular, early peripheral blood recruitment of plasmacytoid dendritic cells and higher production of monocyte chemoattractant protein (MCP-1) correspo  ...[more]

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