2021
Dissection of Barrier Dysfunction in Organoid-Derived Human Intestinal Epithelia Induced by Giardia duodenalis
Holthaus D, Kraft M, Krug S, Wolf S, Müller A, Delgado Betancourt E, Schorr M, Holland G, Knauf F, Schulzke J, Aebischer T, Klotz C. Dissection of Barrier Dysfunction in Organoid-Derived Human Intestinal Epithelia Induced by Giardia duodenalis. Gastroenterology 2021, 162: 844-858. PMID: 34822802, DOI: 10.1053/j.gastro.2021.11.022.Peer-Reviewed Original ResearchMeSH KeywordsApoptosisCaco-2 CellsChloridesCyclic AMPCyclic AMP-Dependent Protein KinasesCystic Fibrosis Transmembrane Conductance RegulatorDuodenumElectric ImpedanceGiardia lambliaGiardiasisHumansInterleukin-1Intestinal MucosaIon TransportNF-kappa BOrganoidsParasite LoadSignal TransductionSolute Carrier Family 12, Member 2Tight JunctionsTranscriptomeTumor Necrosis Factor-alphaConceptsG. duodenalis infectionBarrier dysfunctionGiardia duodenalisHuman duodenal tissueIntestinal barrier dysfunctionHuman intestinal epitheliumResponse element-binding proteinTight junction compositionProtozoan Giardia duodenalisAdequate cellular modelsChronic casesMajor expression changesPathophysiological mechanismsBarrier breakdownDuodenal mucosaGastrointestinal illnessDuodenal tissueBarrier lossPathogenic eventsHuman organoid systemEpithelial barrierTranswell systemChloride secretionIntestinal epitheliumTight junction components
2013
NALP3-mediated inflammation is a principal cause of progressive renal failure in oxalate nephropathy
Knauf F, Asplin JR, Granja I, Schmidt IM, Moeckel GW, David RJ, Flavell RA, Aronson PS. NALP3-mediated inflammation is a principal cause of progressive renal failure in oxalate nephropathy. Kidney International 2013, 84: 895-901. PMID: 23739234, PMCID: PMC3772982, DOI: 10.1038/ki.2013.207.Peer-Reviewed Original ResearchConceptsProgressive renal failureRenal failureCalcium oxalate crystal depositionCrystal-associated diseasesOverproduction of oxalateWild-type miceHigh-oxalate dietNephropathy resultsOxalate nephropathyRenal histologyKidney diseaseOxalate dietInflammatory responseNALP3 expressionDietary oxalateIntestinal oxalateOxalate homeostasisSoluble oxalateNephropathyCrystal depositionMiceMultiple disordersNALP3DietInflammation
2004
Role of dipeptidyl peptidase IV in regulating activity of Na+/H+ exchanger isoform NHE3 in proximal tubule cells
Girardi AC, Knauf F, Demuth HU, Aronson PS. Role of dipeptidyl peptidase IV in regulating activity of Na+/H+ exchanger isoform NHE3 in proximal tubule cells. American Journal Of Physiology - Cell Physiology 2004, 287: c1238-c1245. PMID: 15213057, DOI: 10.1152/ajpcell.00186.2004.Peer-Reviewed Original ResearchConceptsProximal tubule cellsDPPIV inhibitorsDipeptidyl peptidase IVTubule cellsNHE3 activityOpossum kidney proximal tubule cellsKidney proximal tubule cellsNHE3 surface expressionPeptidase IVAdditive inhibitory effectEffects of genisteinForskolin/IBMXTyrosine kinase inhibitor genisteinSpecific competitive inhibitorPKA inhibitor HKinase inhibitor genisteinP32/98Activation of PKAInhibitory effectRenal brush border membraneBrush border membraneSurface expressionProtein kinase pathwayNHE3Inhibitor genistein