alexa Activation of innate immune antiviral responses by Nod2.
Immunology

Immunology

Journal of Clinical & Cellular Immunology

Author(s): Sabbah A, Chang TH, Harnack R, Frohlich V, Tominaga K,

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Abstract Pattern-recognition receptors (PRRs), including Toll-like receptors (TLRs) and RIG-like helicase (RLH) receptors, are involved in innate immune antiviral responses. Here we show that nucleotide-binding oligomerization domain 2 (Nod2) can also function as a cytoplasmic viral PRR by triggering activation of interferon-regulatory factor 3 (IRF3) and production of interferon-beta (IFN-beta). After recognition of a viral ssRNA genome, Nod2 used the adaptor protein MAVS to activate IRF3. Nod2-deficient mice failed to produce interferon efficiently and showed enhanced susceptibility to virus-induced pathogenesis. Thus, the function of Nod2 as a viral PRR highlights the important function of Nod2 in host antiviral defense mechanisms.
This article was published in Nat Immunol and referenced in Journal of Clinical & Cellular Immunology

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