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Open AccessReview

Transcriptional Regulation of Inflammasomes

Centre International de Recherche en Infectiologie (CIRI), Univ Lyon, Inserm U1111, Université Claude Bernard Lyon 1, CNRS, UMR5308, ENS de Lyon, F-69007 Lyon, France
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Int. J. Mol. Sci. 2020, 21(21), 8087; https://doi.org/10.3390/ijms21218087
Received: 29 September 2020 / Revised: 21 October 2020 / Accepted: 26 October 2020 / Published: 29 October 2020
(This article belongs to the Special Issue The Diversity of Mammalian Nod-Like Receptor Functions)
Inflammasomes are multimolecular complexes with potent inflammatory activity. As such, their activity is tightly regulated at the transcriptional and post-transcriptional levels. In this review, we present the transcriptional regulation of inflammasome genes from sensors (e.g., NLRP3) to substrates (e.g., IL-1β). Lineage-determining transcription factors shape inflammasome responses in different cell types with profound consequences on the responsiveness to inflammasome-activating stimuli. Pro-inflammatory signals (sterile or microbial) have a key transcriptional impact on inflammasome genes, which is largely mediated by NF-κB and that translates into higher antimicrobial immune responses. Furthermore, diverse intrinsic (e.g., circadian clock, metabolites) or extrinsic (e.g., xenobiotics) signals are integrated by signal-dependent transcription factors and chromatin structure changes to modulate transcriptionally inflammasome responses. Finally, anti-inflammatory signals (e.g., IL-10) counterbalance inflammasome genes induction to limit deleterious inflammation. Transcriptional regulations thus appear as the first line of inflammasome regulation to raise the defense level in front of stress and infections but also to limit excessive or chronic inflammation. View Full-Text
Keywords: inflammasome; NF-κB; IRF; NLRP3; caspase-1; epigenetic modification; transcription factor; chromatin; promoter; enhancer inflammasome; NF-κB; IRF; NLRP3; caspase-1; epigenetic modification; transcription factor; chromatin; promoter; enhancer
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Cornut, M.; Bourdonnay, E.; Henry, T. Transcriptional Regulation of Inflammasomes. Int. J. Mol. Sci. 2020, 21, 8087.

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