Innate Immune Sensing of Influenza A Virus.

Viruses
Gaurav Malik, Yan Zhou

Abstract

Influenza virus infection triggers host innate immune response by stimulating various pattern recognition receptors (PRRs). Activation of these PRRs leads to the activation of a plethora of signaling pathways, resulting in the production of interferon (IFN) and proinflammatory cytokines, followed by the expression of interferon-stimulated genes (ISGs), the recruitment of innate immune cells, or the activation of programmed cell death. All these antiviral approaches collectively restrict viral replication inside the host. However, influenza virus also engages in multiple mechanisms to subvert the innate immune responses. In this review, we discuss the role of PRRs such as Toll-like receptors (TLRs), Retinoic acid-inducible gene I (RIG-I), NOD-, LRR-, pyrin domain-containing protein 3 (NLRP3), and Z-DNA binding protein 1 (ZBP1) in sensing and restricting influenza viral infection. Further, we also discuss the mechanisms influenza virus utilizes, especially the role of viral non-structure proteins NS1, PB1-F2, and PA-X, to evade the host innate immune responses.

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Citations

Nov 20, 2020·Emerging Topics in Life Sciences·Matloob Husain
Apr 4, 2021·Viruses·Joe McKellarCaroline Goujon
Apr 4, 2021·Viruses·Renate König, Carsten Münk
May 1, 2021·Viruses·Sabrina Weis, Aartjan J W Te Velthuis

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