1998
Dominant negative c-Src inhibits angiotensin II induced activation of NHE3 in OKP cells
Tsuganezawa H, Preisig P, Alpern R. Dominant negative c-Src inhibits angiotensin II induced activation of NHE3 in OKP cells. Kidney International 1998, 54: 394-398. PMID: 9690205, DOI: 10.1046/j.1523-1755.1998.00029.x.Peer-Reviewed Original ResearchConceptsNa/H antiporter activityAngiotensin IIOKP cellsInhibits angiotensin IIVascular smooth muscleTyrosine kinase inhibitorsC-SrcHerbimycin AAntiporter activityNa/H antiporterActivation of NHE3Smooth muscleProximal tubulesPotent stimulatorNHE3 activationRegulation of NHE3Key mediatorKinase inhibitorsClonal cell linesNHE3 activityAntiporter activationCyclic AMPCell linesNHE3Acidosis
1996
Glucocorticoids regulate NHE-3 transcription in OKP cells
Baum M, Amemiya M, Dwarakanath V, Alpern RJ, Moe OW. Glucocorticoids regulate NHE-3 transcription in OKP cells. American Journal Of Physiology 1996, 270: f164-f169. PMID: 8769835, DOI: 10.1152/ajprenal.1996.270.1.f164.Peer-Reviewed Original ResearchConceptsNHE-3 mRNA abundanceGlucocorticoid-mediated increaseOKP cellsDexamethasone-treated cellsNHE-3 mRNAMRNA abundanceTwo- to threefold increaseAntiporter activitySynthetic glucocorticoidProximal tubulesApical proton secretionM dexamethasoneDexamethasoneNHE-3GlucocorticoidsTime courseProton secretionThreefold increasePresent studyCellsGene transcriptionMRNASecretionActivity
1994
Effect of glucocorticoids on renal cortical NHE-3 and NHE-1 mRNA
Baum M, Moe OW, Gentry DL, Alpern RJ. Effect of glucocorticoids on renal cortical NHE-3 and NHE-1 mRNA. American Journal Of Physiology 1994, 267: f437-f442. PMID: 8092257, DOI: 10.1152/ajprenal.1994.267.3.f437.Peer-Reviewed Original ResearchConceptsNHE-3 mRNA abundanceProximal tubulesNHE-3NHE-1MRNA abundanceChronic systemic administrationAdministration of dexamethasoneEffects of glucocorticoidsProximal tubule acidificationNHE-1 mRNAUnits/minChronic dexamethasoneTubule acidificationAcute increaseAntiporter activitySystemic administrationGlucocorticoid deficiencyIntravenous administrationBicarbonate absorptionMicrograms/DexamethasoneAntiporter isoformsDexamethasone occursRenal brush-border membrane vesiclesAdministration
1993
Glucocorticoids stimulate Na+/H+ antiporter in OKP cells
Baum M, Cano A, Alpern RJ. Glucocorticoids stimulate Na+/H+ antiporter in OKP cells. American Journal Of Physiology 1993, 264: f1027-f1031. PMID: 8391752, DOI: 10.1152/ajprenal.1993.264.6.f1027.Peer-Reviewed Original ResearchConceptsOKP cellsProximal tubule acidificationEffect of dexamethasoneAntiporter activityTime-dependent stimulationM aldosteroneHemodynamic changesTubule acidificationSystemic administrationDependent pH recoveryDexamethasoneM dexamethasoneAcid loadStimulatory effectGlucocorticoidsPH recoveryStimulationPH-sensitive dyePresent studyMaximal velocityCellsDirect effectAldosteronePrevious studiesActivity