Abstract
Viral infection triggers host pattern recognition receptors (PRRs) to recognize pathogen-associated molecular patterns or danger-associated molecular patterns to initiate antiviral innate immune responses. NOD-like receptors (NLRs) are a subgroup of cytosolic PRRs. While substantial advances have been made over the past decade, recent studies have unveiled NLRs' emerging roles in the antiviral innate immune signaling pathways. However, the underlying mechanisms have not been fully understood. Here we present a detailed updated overview and novel insights into NLRs' functions in the antiviral innate immune signaling pathways, including TLR, RLR, and cyclic GMP-AMP synthase-stimulator of interferon genes signaling pathways, and highlight discrepancies in the reported findings and current challenges to future studies. A better understanding of this interplay's underlying molecular mechanisms is very important to provide scientific and theoretical bases for regulating antiviral innate immunity.
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