Roles of the Non-Structural Proteins of Influenza A Virus.

Roles of the Non-Structural Proteins of Influenza A Virus.
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DOI:
10.3390/pathogens9100812
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发表时间:
2020-10-03
期刊:
Pathogens (Basel, Switzerland)
影响因子:
--
通讯作者:
Li S
Li S
中科院分区:
其他
文献类型:
--
作者:
Hao W;Wang L;Li S

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甲型流感病毒(IAV)是一种分段的、阴性的单链RNA病毒,可引起季节性流行病,并具有大流行的潜力。几种病毒蛋白不包装在IAV病毒颗粒中,仅在感染的宿主细胞中表达。这些蛋白质被称为非结构蛋白(NSP),包括NS 1,PB 1-F2和PA-X。它们通过调节病毒复制和转录在病毒生命周期中发挥多方面的作用。更重要的是,它们还通过诱导细胞凋亡、干扰先天免疫和加剧炎症在逃避宿主防御和病毒致病性的监视中发挥关键作用。在这里,我们回顾了这些NSP的最新进展,以及这些新发现如何加深我们对IAV-宿主相互作用和病毒发病机制的理解。
Influenza A virus (IAV) is a segmented, negative single-stranded RNA virus that causes seasonal epidemics and has a potential for pandemics. Several viral proteins are not packed in the IAV viral particle and only expressed in the infected host cells. These proteins are named non-structural proteins (NSPs), including NS1, PB1-F2 and PA-X. They play a versatile role in the viral life cycle by modulating viral replication and transcription. More importantly, they also play a critical role in the evasion of the surveillance of host defense and viral pathogenicity by inducing apoptosis, perturbing innate immunity, and exacerbating inflammation. Here, we review the recent advances of these NSPs and how the new findings deepen our understanding of IAV–host interactions and viral pathogenesis.
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