Abstract:
:Outbreaks of avian influenza virus continue to pose threats to human health. Animal models such as the mouse, ferret, and macaque are used to understand the pathogenesis of avian influenza virus infection in humans. We previously reported that the tree shrew (Tupaia belangeri, family Tupaiidae), which is regarded as a "low-level primate", has α2,3- and α2,6-linked sialic acid receptor distributions similar to those of humans and is potentially a useful mammalian model for studying mild human influenza (H1N1) virus infection. In this study, we used the tree shrew experimental model to investigate the pathogenesis of avian influenza A (H9N2) virus infection and the effect of the E627K mutation in the PB2 gene, an adaptation to mammalian hosts. Evidence of disease, virus titers in the upper and lower respiratory tract, histopathology and induction of proinflammatory cytokines are described. We also established ex vivo culture models of tree shrew respiratory tissues to study the tropism and replication of the H9N2 virus. Our results demonstrated that the tree shrew is a viable new in vivo experimental model for avian influenza research that provides results comparable to those observed in ferrets. The disease spectrum and pathogenesis in tree shrews correlate well with what is observed in humans.
journal_name
Emerg Microbes Infectjournal_title
Emerging microbes & infectionsauthors
Li R,Yuan B,Xia X,Zhang S,Du Q,Yang C,Li N,Zhao J,Zhang Y,Zhang R,Feng Y,Jiao J,Peiris M,Zhong N,Mok CKP,Yang Zdoi
10.1038/s41426-018-0167-1subject
Has Abstractpub_date
2018-10-10 00:00:00pages
166issue
1issn
2222-1751pii
10.1038/s41426-018-0167-1journal_volume
7pub_type
杂志文章abstract::Emerging studies have indicated that some penaeidins restrict virus infection; however, the mechanism(s) involved are poorly understood. In the present study, we uncovered that penaeidins are a novel family of antiviral effectors against white spot syndrome virus (WSSV), which antagonize the envelope proteins to block...
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journal_title:Emerging microbes & infections
pub_type: 杂志文章
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journal_title:Emerging microbes & infections
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,meta分析
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pub_type: 杂志文章,评审
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journal_title:Emerging microbes & infections
pub_type: 杂志文章
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abstract::In March 2013, a patient infected with a novel avian influenza A H7N9 virus was reported in China. Since then, there have been 458 confirmed infection cases and 177 deaths. The virus contains several human-adapted markers, indicating that H7N9 has pandemic potential. The outbreak of this new influenza virus highlighte...
journal_title:Emerging microbes & infections
pub_type: 杂志文章
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pub_type: 信件
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