Journal
CURRENT OPINION IN IMMUNOLOGY
Volume 56, Issue -, Pages 24-30Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.coi.2018.09.017
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Funding
- ANR
- INCa
- Liguc contre le Cancer
- MSDAvenir Fund
- Fondation Recherche Medicale
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Cytosolic DNA of endogenous or exogenous origin is sensed by the cGAS-STING pathway to activate innate immune responses. Besides microbial DNA, this pathway detects self DNA in the cytoplasm of damaged or abnormal cells and plays a central role in antitumor immunity. The mechanism by which cytosolic DNA accumulates under genotoxic stress conditions is currently unclear, but recent studies on factors mutated in the Aicardi-Goutieres syndrome cells, such as SAMHD1, RNase H2 and TREX1, are shedding new light on this key process. In particular, these studies indicate that the rupture of micronuclei and the release of ssDNA fragments during the processing of stalled replication forks and chromosome breaks represent potent inducers of the cGAS-STING pathway.
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