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Immunol Rev. 2009 Jan;227(1):54-65. doi: 10.1111/j.1600-065X.2008.00727.x.

RNA recognition and signal transduction by RIG-I-like receptors.

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1
Laboratory of Molecular Genetics, Institute for Virus Research, Kyoto University, Kyoto, Japan.

Abstract

Viral infection is detected by cellular sensor molecules as foreign nucleic acids and initiates innate antiviral responses, including the activation of proinflammatory cytokines and type I interferon (IFN). Recent identification of cytoplasmic viral sensors, such as retinoic acid-inducible gene-I-like receptors (RLRs), highlights their significance in the induction of antiviral innate immunity. Moreover, it is intriguing to understand how they can discriminate endogenous RNA from foreign viral RNA and initiate signaling cascades leading to the induction of type I IFNs. This review focuses on the current understanding of the molecular machinery underlying RNA recognition and subsequent signal transduction by RLRs.

[Indexed for MEDLINE]

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