2022
Dominant negative mutation in oxalate transporter SLC26A6 associated with enteric hyperoxaluria and nephrolithiasis
Cornière N, Thomson RB, Thauvin S, Villoutreix BO, Karp S, Dynia DW, Burlein S, Brinkmann L, Badreddine A, Dechaume A, Derhourhi M, Durand E, Vaillant E, Froguel P, Chambrey R, Aronson PS, Bonnefond A, Eladari D. Dominant negative mutation in oxalate transporter SLC26A6 associated with enteric hyperoxaluria and nephrolithiasis. Journal Of Medical Genetics 2022, 59: 1035-1043. PMID: 35115415, PMCID: PMC9346097, DOI: 10.1136/jmedgenet-2021-108256.Peer-Reviewed Original ResearchConceptsRare heterozygous missense mutationsWild-type proteinStrong dominant-negative effectDominant negative effectDominant negative mutationMembrane surface expressionOxalate transporter SLC26A6Calcium oxalate nephrolithiasisCotransfection studiesOxalate transporterSilico analysisNegative mutationTransport activityMissense mutationsHeterozygous missense mutationEnteric hyperoxaluriaComplex multifactorial diseaseMutationsOxalate nephrolithiasisHuman populationSurface expressionCell culturesUrinary oxalate excretionMajor risk factorGenetic factors
2011
Cholinergic signaling inhibits oxalate transport by human intestinal T84 cells
Hassan HA, Cheng M, Aronson PS. Cholinergic signaling inhibits oxalate transport by human intestinal T84 cells. American Journal Of Physiology - Cell Physiology 2011, 302: c46-c58. PMID: 21956166, PMCID: PMC3328906, DOI: 10.1152/ajpcell.00075.2011.Peer-Reviewed Original ResearchConceptsC-SrcT84 cellsHuman intestinal cell line T84PKC-δ inhibitor rottlerinSrc inhibitor PP2Intestinal cell line T84Human intestinal T84 cellsSurface expressionMuscarinic receptorsRegulation downstreamInhibitor PP2Phosphorylation studiesBiotinylation studiesInhibitor rottlerinKnockdown studiesPharmacological inhibitorsIntestinal T84 cellsIntestinal oxalate secretionPhospholipase CIntestinal ion transportPKC activationSignificant translocationCalcium oxalate urolithiasisPKCAnion exchanger SLC26A6
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
2001
Association of Na+-H+ Exchanger Isoform NHE3 and Dipeptidyl Peptidase IV in the Renal Proximal Tubule*
Girardi A, Degray B, Nagy T, Biemesderfer D, Aronson P. Association of Na+-H+ Exchanger Isoform NHE3 and Dipeptidyl Peptidase IV in the Renal Proximal Tubule*. Journal Of Biological Chemistry 2001, 276: 46671-46677. PMID: 11590171, DOI: 10.1074/jbc.m106897200.Peer-Reviewed Original ResearchConceptsApical membraneExchanger Isoform NHE3Dipeptidyl peptidase IVN-terminal sequencingProtein complexesDPPIV enzyme activityRenal microvillus membrane vesiclesMicrovillar fractionMembrane populationsMembrane vesiclesPeptidase IVWestern blot analysisMicrovillus membrane vesiclesNHE3 surface expressionBrush borderImmunoelectron microscopyRabbit renal brush borderBlot analysisProteinEnzyme activitySurface expressionMicrovillus membraneNHE3Different poolsImmunoaffinity chromatography