2016
Identification of intestinal ion transport defects in microvillus inclusion disease
Kravtsov DV, Ahsan MK, Kumari V, van Ijzendoorn SC, Reyes-Mugica M, Kumar A, Gujral T, Dudeja PK, Ameen NA. Identification of intestinal ion transport defects in microvillus inclusion disease. AJP Gastrointestinal And Liver Physiology 2016, 311: g142-g155. PMID: 27229121, PMCID: PMC4967175, DOI: 10.1152/ajpgi.00041.2016.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingCaco-2 CellsChloride-Bicarbonate AntiportersCystic Fibrosis Transmembrane Conductance RegulatorEnterocytesGene Expression RegulationHumansIon TransportJejunumMalabsorption SyndromesMembrane Transport ProteinsMicrovilliMucolipidosesMyosin Heavy ChainsMyosin Type VPhenotypePhosphoproteinsRNA InterferenceSignal TransductionSodium-Hydrogen Exchanger 3Sodium-Hydrogen ExchangersSulfate TransportersTranscription FactorsTransfectionYAP-Signaling ProteinsConceptsMicrovillus inclusion diseaseStool lossVillus atrophyInclusion diseaseEnterocyte maturationMicrovillus inclusionsIntestinal fluid transportIntestinal cell modelIon transport defectImmunohistochemical stainingSecretory diarrheaBrush border defectsImmature enterocytesC2BBe cellsT84 cellsElectrophysiological approachesCFTR ion transportBB membraneLoss of MYO5BEnterocytesFunctional CFTRDiarrheaAtrophyFunction mutationsCFTR localization
2013
Functional vacuolar ATPase (V-ATPase) proton pumps traffic to the enterocyte brush border membrane and require CFTR
Collaco AM, Geibel P, Lee BS, Geibel JP, Ameen NA. Functional vacuolar ATPase (V-ATPase) proton pumps traffic to the enterocyte brush border membrane and require CFTR. American Journal Of Physiology - Cell Physiology 2013, 305: c981-c996. PMID: 23986201, PMCID: PMC4109618, DOI: 10.1152/ajpcell.00067.2013.Peer-Reviewed Original ResearchConceptsV-ATPaseCystic fibrosis transmembrane conductance regulator (CFTR) channelV-ATPase complexV-ATPase functionBrush border membraneProton effluxRat Brunner's glandsIntestinal cellsCAMP/PKACaco-2BBe cellsBorder membraneApical domainCoimmunoprecipitation studiesCFTR distributionVacuolar ATPasesSubapical cytoplasmSpecific subunitsCAMP stimulationProton pumpCAMP treatmentEnterocyte brush border membraneSodium-hydrogen exchangerHydrogen exchangerApical membraneCFTR
2000
Microvillus Inclusion Disease: A Genetic Defect Affecting Apical Membrane Protein Traffic in Intestinal Epithelium
Ameen N, Salas P. Microvillus Inclusion Disease: A Genetic Defect Affecting Apical Membrane Protein Traffic in Intestinal Epithelium. Traffic 2000, 1: 76-83. PMID: 11208062, DOI: 10.1034/j.1600-0854.2000.010111.x.Peer-Reviewed Original ResearchConceptsMicrovillus inclusion diseaseApical membrane trafficMembrane protein trafficVacuolar apical compartmentApical membrane markersMicrovillus inclusionsF-actin layerBasolateral proteinsFirst genetic defectMembrane trafficTissue culture epithelial cellsProtein trafficApical exocytosisLater stepsApical membraneMembrane markersTerminal webImmunofluorescence analysisApical cytoplasmGenetic defectsEpithelial cellsProteinApical compartmentIntestinal epitheliumNormal microtubules