2024
Antagonistic nanobodies implicate mechanism of GSDMD pore formation and potential therapeutic application
Schiffelers L, Tesfamariam Y, Jenster L, Diehl S, Binder S, Normann S, Mayr J, Pritzl S, Hagelauer E, Kopp A, Alon A, Geyer M, Ploegh H, Schmidt F. Antagonistic nanobodies implicate mechanism of GSDMD pore formation and potential therapeutic application. Nature Communications 2024, 15: 8266. PMID: 39327452, PMCID: PMC11427689, DOI: 10.1038/s41467-024-52110-1.Peer-Reviewed Original ResearchConceptsMembrane insertionGasdermin DN-terminal domainCleavage of gasdermin DPore formationPro-inflammatory caspasesPyroptosis to apoptosisActivated caspase-3Caspase-1 activationTarget membraneCaspase-3Assembled poresPlasma membraneCytosolic expressionLiving cellsConformational changesEnhanced caspase-1 activityOligomerizationPotential therapeutic applicationsInflammasome activationNanobodiesPyroptosisStudy pore formationMembraneTherapeutic applicationsCaspase-4/11 promotes hyperlipidemia and chronic kidney disease-accelerated vascular inflammation by enhancing trained immunity
Sun Y, Lu Y, Liu L, Saaoud F, Shao Y, Xu K, Drummer C, Cueto R, Shan H, Jiang X, Zhao H, Wang H, Yang X. Caspase-4/11 promotes hyperlipidemia and chronic kidney disease-accelerated vascular inflammation by enhancing trained immunity. JCI Insight 2024, 9: e177229. PMID: 39024553, PMCID: PMC11343595, DOI: 10.1172/jci.insight.177229.Peer-Reviewed Original ResearchChronic kidney diseaseTrained immunityAortic endothelial cellsVascular inflammationEndothelial cellsRecruitment of macrophagesIL-1b levelsHuman aortic endothelial cellsHigh-fat dietMembrane expressionN-terminal gasdermin DCytokine secretionPathological analysisIL-1BKidney diseaseNeointima hyperplasiaCaspase-4/11HyperlipidemiaInflammationCytosolic lipopolysaccharideCaspase-11RNA sequencingGasdermin DImmunityLipopolysaccharideNative architecture of a human GBP1 defense complex for cell-autonomous immunity to infection
Zhu S, Bradfield C, Maminska A, Park E, Kim B, Kumar P, Huang S, Kim M, Zhang Y, Bewersdorf J, MacMicking J. Native architecture of a human GBP1 defense complex for cell-autonomous immunity to infection. Science 2024, 383: eabm9903-eabm9903. PMID: 38422126, PMCID: PMC12091997, DOI: 10.1126/science.abm9903.Peer-Reviewed Original ResearchConceptsGuanylate-binding proteinsCaspase-4Surface of Gram-negative bacteriaGuanosine triphosphate hydrolysisImmunity to infectionInnate immunity to infectionCryo-electron tomographyGram-negative bacteriaImmunity proteinSignaling platformsMembrane insertionHuman cellsNative structureCombat infectionsLipopolysaccharide releaseGasdermin DExtended conformationLiving organismsProteinDefense complexCellsNative architectureGBP1BacteriaInfection
2023
Gasdermin D licenses MHCII induction to maintain food tolerance in small intestine
He K, Wan T, Wang D, Hu J, Zhou T, Tao W, Wei Z, Lu Q, Zhou R, Tian Z, Flavell R, Zhu S. Gasdermin D licenses MHCII induction to maintain food tolerance in small intestine. Cell 2023, 186: 3033-3048.e20. PMID: 37327784, DOI: 10.1016/j.cell.2023.05.027.Peer-Reviewed Original ResearchConceptsIntestinal epithelial cellsCleavage fragmentsSmall intestineCaspase-3/7 inhibitorRegulatory hubTolerance phenotypeN-terminal fragmentHost cellsDifferential cleavageCaspase-3/7Upper small intestineTranscription of CIITAGasdermin DEpithelial cellsMHCII deficiencyMHCII inductionDietary antigensTr1 cellsImmune toleranceProtective immunityFood toleranceForeign antigensMHCII moleculesMiceCells
2022
Gasdermin D-dependent platelet pyroptosis exacerbates NET formation and inflammation in severe sepsis
Su M, Chen C, Li S, Li M, Zeng Z, Zhang Y, Xia L, Li X, Zheng D, Lin Q, Fan X, Wen Y, Liu Y, Chen F, Luo W, Bu Y, Qin J, Guo M, Qiu M, Sun L, Liu R, Wang P, Hwa J, Tang WH. Gasdermin D-dependent platelet pyroptosis exacerbates NET formation and inflammation in severe sepsis. Nature Cardiovascular Research 2022, 1: 732-747. PMID: 35967457, PMCID: PMC9362711, DOI: 10.1038/s44161-022-00108-7.Peer-Reviewed Original ResearchToll-like receptor 4S100A8/A9Gasdermin DSevere sepsisNeutrophil extracellular trap formationPathology of sepsisRapid clinical deteriorationInflammatory cytokine releaseKey inflammatory cellsExtracellular trap formationGSDMD-deficient miceClinical deteriorationCecal ligationInflammatory cellsInflammatory cytokinesCytokine releaseReceptor 4SepsisExcessive releasePharmacological inhibitionGenetic ablationNET formationPyroptosisSignificant upregulationInflammationGasdermin D inhibition confers antineutrophil mediated cardioprotection in acute myocardial infarction
Jiang K, Tu Z, Chen K, Xu Y, Chen F, Xu S, Shi T, Qian J, Shen L, Hwa J, Wang D, Xiang Y. Gasdermin D inhibition confers antineutrophil mediated cardioprotection in acute myocardial infarction. Journal Of Clinical Investigation 2022, 132: e151268. PMID: 34752417, PMCID: PMC8718151, DOI: 10.1172/jci151268.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionGasdermin DInfarcted heartMyocardial infarctionBone marrow transplantation studiesAMI mouse modelIL-1β releaseMarrow transplantation studiesReduced heart failureBlood leukocytosisDetrimental immunopathologyEarly mobilizationHeart failureInfarct sizePatient survivalVentricular remodelingCardiac functionAMI survivalMouse modelHeart functionExcessive boneNeutrophil productionNeutrophil generationScar sizePharmacological inhibition
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