干扰素刺激基因的抗病毒机制

Antiviral mechanisms of interferon-stimulated genes

摘要:

干扰素刺激基因（Interferon-stimulated genes，ISGs）作为由干扰素（Interferons，IFNs）诱导表达的基因，在宿主抵抗病毒感染的过程中发挥着至关重要的作用。越来越多的研究表明，ISGs能够靶向病毒复制的不同阶段进而抵抗病毒感染。由于ISGs成员众多，且各自的结构及其在细胞中的定位也各不相同，这决定了ISGs在宿主体内以不同机制来发挥抗病毒作用。本文将简要介绍IFNs如何通过JAK-STAT通路调控ISGs的表达，并归纳和讨论不同ISGs家族蛋白较为典型的抗病毒机制。

Abstract:

Interferons (IFNs) can induce the expression of a series of interferon-stimulated genes (ISGs). As direct-acting antiviral factors, ISGs play important roles in host antiviral defense. More and more studies reveal that ISGs directly or indirectly target multiple steps of the virus life cycle. Since diverse ISGs have different structures and locations in the cell, they exert various antiviral actions through different pathways. This review aimed to give a brief introduction to ISGs expression induced by IFNs through the JAK-STAT pathway, and provide an overview of typical antiviral mechanisms of representative ISGs.