1998
Functional polarity of Na+/H+and Cl−/ HCO 3 − exchangers in a rat cholangiocyte cell line
Spirlì C, Granato A, Zsembery A, Anglani F, Okolicsànyi L, LaRusso N, Crepaldi G, Strazzabosco M. Functional polarity of Na+/H+and Cl−/ HCO 3 − exchangers in a rat cholangiocyte cell line. American Journal Of Physiology 1998, 275: g1236-g1245. PMID: 9843758, DOI: 10.1152/ajpgi.1998.275.6.g1236.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntiportersBile DuctsCell LineCell PolarityChloride-Bicarbonate AntiportersGene ExpressionIsomerismRatsReverse Transcriptase Polymerase Chain ReactionSodium-Hydrogen ExchangersConceptsRat cholangiocyte cell lineCholangiocyte cell lineHOE 642Intrahepatic bile duct cellsCell linesNHE isoformsBile duct cellsAcid-base transportersPHi recoveryApical administrationBasolateral amilorideSeparate perfusionFirst functional descriptionAcid loadBasolateral aspectNHE3 gene expressionDuct cellsGene expressionRT-PCRApical amilorideElectrolyte transportAE2 mRNAAmilorideHCO-3Isoforms
1997
Na+‐dependent and ‐independent Cl−/HCO exchange mediate cellular HCO transport in cultured human intrahepatic bile duct cells
Strazzabosco M, Joplin R, Zsembery A, Wallace L, Spirli C, Fabris L, Granato A, Rossanese A, Poci C, Neuberger J, Okolicsanyi L, Crepaldi G. Na+‐dependent and ‐independent Cl−/HCO exchange mediate cellular HCO transport in cultured human intrahepatic bile duct cells. Hepatology 1997, 25: 976-985. PMID: 9096607, DOI: 10.1002/hep.510250431.Peer-Reviewed Original ResearchConceptsEpithelial membrane antigenIntracellular acid loadHuman cholangiocytesAcid loadIntrahepatic bile duct cellsFactor VIII-related antigenIntracellular cyclic adenosine monophosphate (cAMP) concentrationsBiliary HCO3- secretionPediatric liver transplantationAdministration of agentsCyclic adenosine monophosphate concentrationsHuman hepatocyte growth factorVIII-related antigenBile duct cellsNormal liver tissueBiliary epithelial cellsCl- channel inhibitorsHepatocyte growth factorAdenosine monophosphate concentrationsIntracellular cAMP concentrationLiver transplantationReduced graftAbsence of HCO3Biliary treeAcid loader
1994
Regulation of activity and apical targeting of the Cl-/HCO3- exchanger in rat hepatocytes.
Benedetti A, Strazzabosco M, Ng O, Boyer J. Regulation of activity and apical targeting of the Cl-/HCO3- exchanger in rat hepatocytes. Proceedings Of The National Academy Of Sciences Of The United States Of America 1994, 91: 792-796. PMID: 8290601, PMCID: PMC43035, DOI: 10.1073/pnas.91.2.792.Peer-Reviewed Original ResearchConceptsApical targetingExchange activityRegulation of activityMembrane localizationCl-/HCO3Dibutyryl cAMPProtein kinase C agonistsRat hepatocytesProtein kinase C agonist phorbolEcto-ATPaseConfocal microscopyCanalicular domainC agonistsProteinVesiclesTargetingCanalicular localizationLocalizationCAMPHepatocyte coupletsHepatocytesActivityRegulationPhorbolColchicine
1991
Cl(-)-HCO3- exchanger in isolated rat hepatocytes: role in regulation of intracellular pH
Benedetti A, Strazzabosco M, Corasanti J, Haddad P, Graf J, Boyer J. Cl(-)-HCO3- exchanger in isolated rat hepatocytes: role in regulation of intracellular pH. American Journal Of Physiology 1991, 261: g512-g522. PMID: 1887897, DOI: 10.1152/ajpgi.1991.261.3.g512.Peer-Reviewed Original ResearchMeSH Keywords4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid4,4'-Diisothiocyanostilbene-2,2'-Disulfonic AcidAmmoniaAnimalsBariumBicarbonatesCarrier ProteinsCells, CulturedChloride-Bicarbonate AntiportersChloridesHydrogen-Ion ConcentrationIntracellular FluidKineticsLiverMaleRatsRats, Inbred StrainsConceptsAlkaline loadPH-sensitive dye BCECFMM H2DIDSPHi recoveryRegulation of intracellularRat hepatocyte monolayersAcid extrudersMM DIDSRat hepatocytesElectrophysiological techniquesDye BCECFHCO3- exchangerIsolated rat hepatocytesConstant pHoIntracellularMembrane potentialHepatocyte monolayersHepatocytesAcid loading