Type I interferon response is delayed in human astrovirus infections.
Type I interferon response is delayed in human astrovirus infections.
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DOI:
10.1371/journal.pone.0123087
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Pintó RM
中科院分区:
文献类型:
--
作者:
Guix S;Pérez-Bosque A;Miró L;Moretó M;Bosch A;Pintó RM
Type I interferon (IFN) activation and its subsequent effects are important in the response to viral infections. Here we show that human astroviruses (HAstVs), which are important agents of acute gastroenteritis in children, induce a mild and delayed IFN response upon infecting CaCo-2 cells. Although IFN-β mRNA is detected within infected cells and supernatant from infected cells show antiviral activity against the replication of other well-known IFN-sensitive viruses, these responses occur at late stages of infection once genome replication has taken place. On the other hand, HAstV replication can be partially reduced by the addition of exogenous IFN, and inhibition of IFN activation by BX795 enhances viral replication, indicating that HAstVs are IFN-sensitive viruses. Finally, different levels of IFN response were observed in cells infected with different HAstV mutants with changes in the hypervariable region of nsP1a/4, suggesting that nsP1a/4 genotype may potentially have clinical implications due to its correlation with the viral replication phenotype and the antiviral responses induced within infected cells.
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影响因子:
3.7
作者:
Guix, S;Caballero, S;Pintó, RM
通讯作者:
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