Abstract
Dysregulation of inflammatory cell death is a key driver of many inflammatory diseases. Pyroptosis, a highly inflammatory form of cell death, uses intracellularly generated pores to disrupt electrolyte homeostasis and execute cell death. Gasdermin D, the pore-forming effector protein of pyroptosis, coordinates membrane lysis and the release of highly inflammatory molecules, such as interleukin-1β, which potentiate the overactivation of the innate immune response. However, to date, there is no pharmacologic mechanism to disrupt pyroptosis. Here, we identify necrosulfonamide as a direct chemical inhibitor of gasdermin D, the pyroptotic pore-forming protein, which binds directly to gasdermin D to inhibit pyroptosis. Pharmacologic inhibition of pyroptotic cell death by necrosulfonamide is efficacious in sepsis models and suggests that gasdermin D inhibitors may be efficacious clinically in inflammatory diseases.
Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Acrylamides / pharmacology*
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Acrylamides / therapeutic use
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Animals
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Apoptosis Regulatory Proteins / antagonists & inhibitors*
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Apoptosis Regulatory Proteins / physiology
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Cytokines / genetics
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Female
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HEK293 Cells
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Humans
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Intracellular Signaling Peptides and Proteins
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Lipopolysaccharides
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Macrophages / drug effects
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Mice, Inbred C57BL
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Monocytes / drug effects
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NLR Family, Pyrin Domain-Containing 3 Protein / physiology
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Neoplasm Proteins / antagonists & inhibitors*
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Neoplasm Proteins / physiology
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Phosphate-Binding Proteins
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Pyrin / physiology
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Pyroptosis / drug effects*
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Salmonella Infections / drug therapy
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Salmonella Infections / immunology
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Salmonella typhimurium
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Sepsis / drug therapy
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Sepsis / immunology
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Sulfonamides / pharmacology*
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Sulfonamides / therapeutic use
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THP-1 Cells
Substances
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Acrylamides
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Apoptosis Regulatory Proteins
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Cytokines
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GSDMD protein, human
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Gsdmd protein, mouse
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Intracellular Signaling Peptides and Proteins
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Lipopolysaccharides
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N-(4-(N-(3-methoxypyrazin-2-yl)sulfamoyl)phenyl)-3-(5-nitrothiophene-2-yl)acrylamide
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NLR Family, Pyrin Domain-Containing 3 Protein
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Neoplasm Proteins
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Phosphate-Binding Proteins
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Pyrin
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Sulfonamides