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 membraneCFTRCFTR and V‐ATPase trafficking and function in the intestinal brush border membrane
Collaco A, Geibel P, Kravtsov D, Ghantaphang S, Lee B, Geibel J, Ameen N. CFTR and V‐ATPase trafficking and function in the intestinal brush border membrane. The FASEB Journal 2013, 27: 913.10-913.10. DOI: 10.1096/fasebj.27.1_supplement.913.10.Peer-Reviewed Original ResearchES cellsV-ATPaseMulti-subunit proton pumpCystic fibrosis transmembrane conductance regulator (CFTR) chloride channelV-ATPase traffickingIntestinal brush border membraneBrush border membraneBasolateral domainPlasma membraneVacuolar ATPaseE subunitBorder membraneCAMP stimulationProton pumpCAMP activationDistinct domainsFunctional synergyApical membraneCFTRChloride channelsProton effluxSubunitsMouse intestineTransportersE interaction
2009
AMP-activated protein kinase: a physiological off switch for murine gastric acid secretion
Sidani S, Kopic S, Socrates T, Kirchhoff P, Föller M, Murek M, Capasso A, Geibel JP. AMP-activated protein kinase: a physiological off switch for murine gastric acid secretion. Pflügers Archiv - European Journal Of Physiology 2009, 459: 39. PMID: 19621238, DOI: 10.1007/s00424-009-0698-3.Peer-Reviewed Original ResearchConceptsProtein kinaseAMPK activationSecretagogue-induced acid secretionCellular ATP levelsPresence of AMPKEnergy-dependent transportersImmunofluorescent localizationParietal cellsGastric glandsCellular ATP consumptionGastric parietal cellsCompound CAMPKProton effluxATP consumptionMetabolic stressRate of intracellularATP levelsKinaseAdenosine monophosphateRegulatorATPLarge abundanceCellsActivation