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Innate sensing of viruses by cytosolic nucleic acid sensors is a key feature of anti-viral immunity against these pathogens. The DNA sensing pathway through the sensor cyclic GMP-AMP synthase (cGAS) and its downstream effector stimulator of interferon genes (STING) has emerged in recent years as a key, front-line means of driving interferons and pro-inflammatory cytokines in response to DNA virus infection in vertebrates. Unsurprisingly, many DNA viruses have evolved effective inhibitors of this signalling system which target at a wide variety of points from sensing all the way down to the activation of Interferon Regulatory Factor (IRF)-family and Nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB)-family transcription factors which drive a program of pro-inflammatory and anti-viral gene expression. Here we review DNA viruses that have been shown to inhibit this pathway and the inhibitors they have evolved to do it. Copyright © 2020. Published by Elsevier Inc.


Thomas Phelan, Mark A Little, Gareth Brady. Targeting of the cGAS-STING system by DNA viruses. Biochemical pharmacology. 2020 Apr;174:113831

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PMID: 32004549

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