Effects of the Serine/Threonine Kinase SGK1 on the Epithelial Na+ Channel (ENaC) and CFTR: Implications for Cystic Fibrosis
Wagner C, Ott M, Klingel K, Beck S, Melzig J, Friedrich B, Wild K, Bröer S, Moschen I, Albers A, Waldegger S, Tümmler B, Egan M, Geibel J, Kandolf R, Lang F. Effects of the Serine/Threonine Kinase SGK1 on the Epithelial Na+ Channel (ENaC) and CFTR: Implications for Cystic Fibrosis. Cellular Physiology And Biochemistry 2001, 11: 209-218. PMID: 11509829, DOI: 10.1159/000051935.Peer-Reviewed Original ResearchMeSH Keywords1-Methyl-3-isobutylxanthineAmino Acid SubstitutionAnimalsBronchiCell LineCystic FibrosisCystic Fibrosis Transmembrane Conductance RegulatorEpithelial CellsEpithelial Sodium ChannelsHumansIn Situ HybridizationLungMacrophages, AlveolarMutationOocytesPatch-Clamp TechniquesProtein Serine-Threonine KinasesPulmonary AlveoliRNA, ComplementaryRNA, MessengerSodiumSodium ChannelsXenopus laevisConceptsSerine/threonine kinase SGK1Lung tissueCystic fibrosisCF patientsKinase SGK1CF lung tissueXenopus oocytesLoss of CFTRLung epithelial cell lineCoexpression of CFTREffect of SGK1Pathophysiological factorsEpithelial cell lineRespiratory epitheliumLung phenotypeVariety of stimuliCl(-) secretionSGK1 expressionInhibitor amilorideInhibitory effectEpithelial cellsEnhanced expressionChannel ENaC.CFTR mutationsChannel activityCharacterization of apical membrane Cl-dependent Na/H exchange in crypt cells of rat distal colon
Rajendran V, Geibel J, Binder H. Characterization of apical membrane Cl-dependent Na/H exchange in crypt cells of rat distal colon. AJP Gastrointestinal And Liver Physiology 2001, 280: g400-g405. PMID: 11171622, DOI: 10.1152/ajpgi.2001.280.3.g400.Peer-Reviewed Original ResearchConceptsRat distal colonNa/H exchangeCl- channel blockerDistal colonChannel blockersCrypt cellsIntracellular pH recoveryExchange inhibitor amilorideColonic epithelial cellsApical membrane vesiclesCrypt glandsHigh doseHOE 694NA depletionAcid loadExchange inhibitorInhibitor amiloridePH recoveryEpithelial cellsUptake 1NHE isoformsAnion exchange inhibitorBlockersColonNa uptake