Wild-type coxsackievirus infection dramatically alters the abundance, heterogeneity, and immunostimulatory capacity of conventional dendritic cells in vivo.

Wild-type coxsackievirus infection dramatically alters the abundance, heterogeneity, and immunostimulatory capacity of conventional dendritic cells in vivo.
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DOI:
10.1016/j.virol.2012.04.005
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发表时间:
2012-07-20
期刊:
影响因子:
3.7
通讯作者:
Whitton JL
Whitton JL
中科院分区:
医学3区
文献类型:
--
作者:
Kemball CC;Flynn CT;Hosking MP;Botten J;Whitton JL

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In vitro studies have shown that enteroviruses employ strategies that may impair the ability of DCs to trigger T cell immunity, but it is unclear how these viruses affect DCs in vivo. Here, we evaluate the effects of wild-type (wt) coxsackievirus B3 on DCs in vitro and in a murine model in vivo. Although CVB3 does not productively infect the vast majority of DCs, virus infection profoundly reduces splenic conventional DCs numbers and diminishes their capacity to prime naïve CD8+ T cells in vitro. In contrast to recombinant CVB3, highly pathogenic wt virus infection significantly diminishes the host’s capacity to mount T cell responses, which is temporally associated with the loss of CD8α+ DCs. Our findings demonstrate that enterovirus infection substantially alters the number, heterogeneity, and stimulatory capacity of DCs in vivo, and these dramatic immunomodulatory effects may weaken the host’s capacity to mount antiviral T cell responses.
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