2010
Cystic Fibrosis Transmembrane Conductance Regulator Protein And Calcium Activated Chloride Channels Mediate Chloride Efflux In Murine Macrophages
Shenoy A, Kopic S, Murek M, Caputo C, Geibel J, Egan M. Cystic Fibrosis Transmembrane Conductance Regulator Protein And Calcium Activated Chloride Channels Mediate Chloride Efflux In Murine Macrophages. 2010, a6575-a6575. DOI: 10.1164/ajrccm-conference.2010.181.1_meetingabstracts.a6575.Peer-Reviewed Original Research
2009
Revisiting the parietal cell
Kopic S, Murek M, Geibel JP. Revisiting the parietal cell. American Journal Of Physiology - Cell Physiology 2009, 298: c1-c10. PMID: 19889964, DOI: 10.1152/ajpcell.00478.2009.Peer-Reviewed Original Research
2006
ΔF508 Mutation Results in Impaired Gastric Acid Secretion*
Sidani SM, Kirchhoff P, Socrates T, Stelter L, Ferreira E, Caputo C, Roberts KE, Bell RL, Egan ME, Geibel JP. ΔF508 Mutation Results in Impaired Gastric Acid Secretion*. Journal Of Biological Chemistry 2006, 282: 6068-6074. PMID: 17178714, DOI: 10.1074/jbc.m608427200.Peer-Reviewed Original ResearchConceptsCystic fibrosis transmembrane conductance regulatorATP-binding cassette (ABC) transportersFibrosis transmembrane conductance regulatorTransmembrane conductance regulatorMouse gastric glandsParietal cellsMultifunctional proteinCFTR proteinRegulatory proteinsTransport proteinsCassette transportersConductance regulatorRegulatory roleApical poleSecretagogue-induced acid secretionGland lumenGastric glandsSulfonylurea receptorProteinImpaired gastric acid secretionK-ATPaseCl(-) secretionImmunofluorescent localizationCl- channelsATP-sensitive potassium channelsAn update on acid secretion
Geibel JP, Wagner C. An update on acid secretion. Reviews Of Physiology, Biochemistry And Pharmacology 2006, 156: 45-60. PMID: 16634146, DOI: 10.1007/s10254-005-0003-0.Peer-Reviewed Original ResearchConceptsApical proteinsSecretory pathwayRegulatory mechanismsTransporter proteinsCalcium-sensing receptor activationParietal cellsApical surfaceCalcium-sensing receptorComplex processParietal cell canaliculiAcid productionProteinApical channelsReceptor activationInsertion of pumpsPathwayCellsActivationRecent candidateSecretion of acidSecretionReceptorsAcid secretionCatalytic cycleATPase
2005
Insulin Receptor (IR) and Glucose Transporter 2 (GLUT2) Proteins Form a Complex on the Rat Hepatocyte Membrane
Eisenberg M, Maker A, Slezak L, Nathan J, Sritharan K, Jena B, Geibel J, Andersen D. Insulin Receptor (IR) and Glucose Transporter 2 (GLUT2) Proteins Form a Complex on the Rat Hepatocyte Membrane. Cellular Physiology And Biochemistry 2005, 15: 051-058. PMID: 15665515, DOI: 10.1159/000083638.Peer-Reviewed Original ResearchConceptsGlucose transporter 2Insulin receptorPlasma membranePlasma membrane insulin receptorsFluorescence resonance energy transfer studiesMembrane insulin receptorsHepatic glucose transportersGlucose transporterHepatocyte plasma membraneHepatic glucose regulationInsulin regulationGlucose transportBidirectional glucose transportRat hepatocyte membranesConfocal microscopyTransporter 2MembraneEnergy transfer studiesRegulationTexas RedComplexesEndosomesCytosolProteinTransporters
2002
Calcium-pump inhibitors induce functional surface expression of ΔF508-CFTR protein in cystic fibrosis epithelial cells
Egan ME, Glöckner-Pagel J, Ambrose C, Cahill PA, Pappoe L, Balamuth N, Cho E, Canny S, Wagner CA, Geibel J, Caplan MJ. Calcium-pump inhibitors induce functional surface expression of ΔF508-CFTR protein in cystic fibrosis epithelial cells. Nature Medicine 2002, 8: 485-492. PMID: 11984593, DOI: 10.1038/nm0502-485.Peer-Reviewed Original ResearchConceptsEndoplasmic reticulumCalcium pump inhibitorΔF508-CFTR proteinCystic fibrosis epithelial cellsCystic fibrosis transmembrane conductance regulator (CFTR) proteinCystic fibrosis cell lineFunctional surface expressionSurface expressionChaperone activityChaperone proteinsRegulator proteinPlasma membraneCystic fibrosis defectCell surfaceProteinCell linesPotential targetOptimal activityInhibitor thapsigarginEpithelial cellsExpressionCommon mutationsInhibitorsMouse modelReticulum
2001
The Stomach Divalent Ion-sensing Receptor SCAR Is a Modulator of Gastric Acid Secretion*
Geibel J, Wagner C, Caroppo R, Qureshi I, Gloeckner J, Manuelidis L, Kirchhoff P, Radebold K. The Stomach Divalent Ion-sensing Receptor SCAR Is a Modulator of Gastric Acid Secretion*. Journal Of Biological Chemistry 2001, 276: 39549-39552. PMID: 11507103, DOI: 10.1074/jbc.m107315200.Peer-Reviewed Original ResearchConceptsDivalent cation receptorsTransport proteinsPlasma membrane transport proteinsMembrane transport proteinsGastric acid secretionGastric parietal cellsParietal cellsExact functionNovel pathwayGastric glandsReceptor familySecretory cellsAcid secretionCalcium-sensing receptorBasolateral membranePathwayEndocrine pathwaysExtracellular cationsProteinNew insightsATPaseRat gastric glandsRegulationCellsDivalent cations
2000
Dendrimer-assisted patch-clamp sizing of nuclear pores
Bustamante J, Michelette E, Geibel J, Hanover J, McDonnell T, Dean D. Dendrimer-assisted patch-clamp sizing of nuclear pores. Pflügers Archiv - European Journal Of Physiology 2000, 439: 829-837. PMID: 10784359, PMCID: PMC4397974, DOI: 10.1007/s004249900233.Peer-Reviewed Original ResearchConceptsNuclear pore complexNuclear localization signalMacromolecular translocationFluorescence microscopy dataNuclear envelopeGreen fluorescence proteinLocalization signalPore complexNuclear poresMicroscopy dataColloidal gold particlesFluorescence proteinElectron microscopyCell lysatesFluorescence microscopyPhysiological conditionsDistinct classesCellular structureGold particlesProteinTranslocationUseful probeCardiomyocyte nucleiB-phycoerythrinParticles
1999
Direct observation of oxidative stress on the cell wall of Saccharomyces cerevisiae strains with atomic force microscopy
de Souza Pereira R, Geibel J. Direct observation of oxidative stress on the cell wall of Saccharomyces cerevisiae strains with atomic force microscopy. Molecular And Cellular Biochemistry 1999, 201: 17-24. PMID: 10630618, DOI: 10.1023/a:1007007704657.Peer-Reviewed Original ResearchConceptsCell wallGroup of yeastsOxidative damageOxidative stressIndustrial strainsMolecular biologySurface proteinsInduced oxidative damageGerman strainsAmerican strainsMM diamideAtomic force microscopyStrainsSaccharomycesYeastBiologyProteinForce microscopyRapid screening processBiotechnologyPore sizeStressSurface poresOxidantsDiamide
1997
Gi regulation of secretory vesicle swelling examined by atomic force microscopy
Jena B, Schneider S, Geibel J, Webster P, Oberleithner H, Sritharan K. Gi regulation of secretory vesicle swelling examined by atomic force microscopy. Proceedings Of The National Academy Of Sciences Of The United States Of America 1997, 94: 13317-13322. PMID: 9371843, PMCID: PMC24306, DOI: 10.1073/pnas.94.24.13317.Peer-Reviewed Original ResearchConceptsSecretory vesicle membraneVesicle swellingSecretory vesiclesPlasma membraneVesicle fusionVesicle membraneSecretory vesicle swellingSecretory vesicle fusionConfocal microscopyZymogen granulesCell plasma membraneVesicle volumeHeterotrimeric guanineHeterotrimeric GTPZymogen granule sizeGTPase activityAlpha subunitMolecular mechanismsRegulatory rolePresence of GTPExocytotic processMastoparan analogsProteinGi proteinsMas7