PMID- 29279328 OWN - NLM STAT- MEDLINE DCOM- 20190205 LR - 20210205 IS - 1083-351X (Electronic) IS - 0021-9258 (Print) IS - 0021-9258 (Linking) VI - 293 IP - 7 DP - 2018 Feb 16 TI - Hydrogen sulfide inhibits NLRP3 inflammasome activation and reduces cytokine production both in vitro and in a mouse model of inflammation. PG - 2546-2557 LID - 10.1074/jbc.M117.806869 [doi] AB - A variety of stimuli, including monosodium urate (MSU) crystals, activate the NLRP3 inflammasome, and this activation involves several molecular mechanisms including xanthine oxidase (XO) up-regulation and mitochondrial dysfunction. Upon oligomerization of apoptosis-associated speck-like protein containing a CARD (ASC), caspase-1 becomes active and cleaves the proinflammatory cytokine IL-1beta into its active secreted form. Hydrogen sulfide (H(2)S), a gasotransmitter mainly produced by cystathionine gamma-lyase (CSE) in macrophages, could modulate inflammation. Here, we sought to investigate the effects of exogenous and endogenous H(2)S on NLRP3 inflammasome activation in vitro and in vivo Primed bone marrow-derived macrophages (BMDM) isolated from wildtype (wt) or CSE-deficient mice and human macrophages (THP1 cells and primary macrophages), were stimulated with MSU crystals in the presence or absence of a H(2)S donor, sodium thiosulfate (STS) or GYY4137 (GYY). In murine and human macrophages in vitro, both STS and GYY inhibited MSU crystal-induced IL-1beta secretion in a dose-dependent manner. Moreover, the H(2)S donors inhibited MSU crystal-induced XO/caspase-1 activities, mitochondrial reactive oxygen species (ROS) generation, and ASC oligomerization. Accordingly, IL-1beta secretion and XO/caspase-1 activities were higher in CSE-deficient BMDMs than in wt BMDMs. For in vivo studies, we experimentally induced peritonitis by intraperitoneal injection of MSU crystals into mice. GYY pretreatment ameliorated inflammation, evidenced by decreased IL-6/monocyte chemoattractant protein-1 (MCP-1) released into peritoneal lavages. Taken together, our results suggest that both exogenous (via H(2)S donors) and endogenous (via CSE) H(2)S production may represent approaches for managing, for example, acute gout or other inflammation conditions. CI - (c) 2018 by The American Society for Biochemistry and Molecular Biology, Inc. FAU - Castelblanco, Mariela AU - Castelblanco M AD - From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and. FAU - Lugrin, Jerome AU - Lugrin J AD - the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and. FAU - Ehirchiou, Driss AU - Ehirchiou D AD - the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and. FAU - Nasi, Sonia AU - Nasi S AD - From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and. FAU - Ishii, Isao AU - Ishii I AD - Showa Pharmaceutical University, Tokyo 194-8543, Japan. FAU - So, Alexander AU - So A AD - From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and. FAU - Martinon, Fabio AU - Martinon F AD - the Department of Biochemistry, University of Lausanne, Epalinges 155 1066, Switzerland and. FAU - Busso, Nathalie AU - Busso N AD - From the Service of Rheumatology, DAL, Lausanne University Hospital (CHUV) and Nathalie.Busso@chuv.ch. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20171226 PL - United States TA - J Biol Chem JT - The Journal of biological chemistry JID - 2985121R RN - 0 (Inflammasomes) RN - 0 (Interleukin-1beta) RN - 0 (Interleukin-6) RN - 0 (NLR Family, Pyrin Domain-Containing 3 Protein) RN - 0 (NLRP3 protein, human) RN - 0 (Nlrp3 protein, mouse) RN - YY9FVM7NSN (Hydrogen Sulfide) SB - IM MH - Animals MH - Humans MH - Hydrogen Sulfide/*immunology MH - Inflammasomes/genetics/*immunology MH - Inflammation/genetics/*immunology MH - Interleukin-1beta/genetics/immunology MH - Interleukin-6/genetics/immunology MH - Macrophages/*immunology MH - Mice MH - Mice, Inbred C57BL MH - NLR Family, Pyrin Domain-Containing 3 Protein/genetics/*immunology PMC - PMC5818172 OTO - NOTNLM OT - NLRP3 OT - apoptosis-associated speck-like protein containing a CARD OT - caspase 1 (CASP1) OT - cystathionine gamma-lyase OT - hydrogen sulfide OT - inflammasome OT - monosodium urate OT - reactive oxygen species (ROS) OT - xanthine oxidase COIS- The authors declare that they have no conflicts of interest with the contents of this article EDAT- 2017/12/28 06:00 MHDA- 2019/02/06 06:00 PMCR- 2019/02/16 CRDT- 2017/12/28 06:00 PHST- 2017/07/21 00:00 [received] PHST- 2017/11/17 00:00 [revised] PHST- 2017/12/28 06:00 [pubmed] PHST- 2019/02/06 06:00 [medline] PHST- 2017/12/28 06:00 [entrez] PHST- 2019/02/16 00:00 [pmc-release] AID - S0021-9258(20)31715-4 [pii] AID - M117.806869 [pii] AID - 10.1074/jbc.M117.806869 [doi] PST - ppublish SO - J Biol Chem. 2018 Feb 16;293(7):2546-2557. doi: 10.1074/jbc.M117.806869. Epub 2017 Dec 26.