Chemical disruption of the pyroptotic pore-forming protein gasdermin D inhibits inflammatory cell death and sepsis

Sci Immunol. 2018 Aug 24;3(26):eaat2738. doi: 10.1126/sciimmunol.aat2738.

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.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylamides / pharmacology*
  • Acrylamides / therapeutic use
  • Animals
  • Apoptosis Regulatory Proteins / antagonists & inhibitors*
  • Apoptosis Regulatory Proteins / physiology
  • Cytokines / genetics
  • Female
  • HEK293 Cells
  • Humans
  • Intracellular Signaling Peptides and Proteins
  • Lipopolysaccharides
  • Macrophages / drug effects
  • Mice, Inbred C57BL
  • Monocytes / drug effects
  • NLR Family, Pyrin Domain-Containing 3 Protein / physiology
  • Neoplasm Proteins / antagonists & inhibitors*
  • Neoplasm Proteins / physiology
  • Phosphate-Binding Proteins
  • Pyrin / physiology
  • Pyroptosis / drug effects*
  • Salmonella Infections / drug therapy
  • Salmonella Infections / immunology
  • Salmonella typhimurium
  • Sepsis / drug therapy
  • Sepsis / immunology
  • Sulfonamides / pharmacology*
  • Sulfonamides / therapeutic use
  • THP-1 Cells

Substances

  • Acrylamides
  • Apoptosis Regulatory Proteins
  • Cytokines
  • GSDMD protein, human
  • Gsdmd protein, mouse
  • Intracellular Signaling Peptides and Proteins
  • Lipopolysaccharides
  • N-(4-(N-(3-methoxypyrazin-2-yl)sulfamoyl)phenyl)-3-(5-nitrothiophene-2-yl)acrylamide
  • NLR Family, Pyrin Domain-Containing 3 Protein
  • Neoplasm Proteins
  • Phosphate-Binding Proteins
  • Pyrin
  • Sulfonamides