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Curr Opin Virol. 2015 Jun;12:7-14. doi: 10.1016/j.coviro.2015.01.004. Epub 2015 Jan 30.

RIG-I-like receptor regulation in virus infection and immunity.

Author information

1
Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA.
2
Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA. Electronic address: michaela_gack@hms.harvard.edu.

Abstract

Mammalian cells have the intrinsic capacity to detect viral pathogens and to initiate an antiviral response that is characterized by the induction of interferons (IFNs) and proinflammatory cytokines. A delicate regulation of the signaling pathways that lead to cytokine production is needed to ensure effective clearance of the virus, while preventing tissue damage caused by excessive cytokine release. Here, we focus on the mechanisms that modulate the signal transduction triggered by RIG-I-like receptors (RLRs) and their adaptor protein MAVS, key components of the host machinery for sensing foreign RNA. Specifically, we summarize recent advances in understanding how RLR signaling is regulated by posttranslational and posttranscriptional mechanisms, microRNAs (miRNAs) and autophagy. We further discuss how viruses target these regulatory mechanisms for immune evasion.

PMID:
25644461
PMCID:
PMC5076476
DOI:
10.1016/j.coviro.2015.01.004
[Indexed for MEDLINE]
Free PMC Article

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