2008
Exon Loss Accounts for Differential Sorting of Na-K-Cl Cotransporters in Polarized Epithelial Cells
Carmosino M, Giménez I, Caplan M, Forbush B. Exon Loss Accounts for Differential Sorting of Na-K-Cl Cotransporters in Polarized Epithelial Cells. Molecular Biology Of The Cell 2008, 19: 4341-4351. PMID: 18667527, PMCID: PMC2555935, DOI: 10.1091/mbc.e08-05-0478.Peer-Reviewed Original ResearchConceptsDileucine motifNa-K-Cl cotransporterRenal Na-K-Cl cotransporterPolarized epithelial cellsAmino acid stretchApical proteinsApical sortingEvolutionary lossRenal epithelial cell lineGene structurePhylogenetic analysisDifferential sortingDirect traffickingEpithelial cell lineAdditional exonC-terminusMammalian kidneyApical membraneExonsNovel mechanismNKCC2 geneCell linesBasolateral membraneMotifEpithelial cells
2005
SGK1 activates Na+-K+-ATPase in amphibian renal epithelial cells
de la Rosa D, Gimenez I, Forbush B, Canessa CM. SGK1 activates Na+-K+-ATPase in amphibian renal epithelial cells. American Journal Of Physiology - Cell Physiology 2005, 290: c492-c498. PMID: 16192298, DOI: 10.1152/ajpcell.00556.2004.Peer-Reviewed Original ResearchConceptsRenal epithelial cellsEpithelial cellsEffects of aldosteroneCell linesActivation of ENaCGlucocorticoid-induced kinase 1Epithelial cell lineRenal epithelial cell lineAldosteroneSGK1 expressionSame cell lineSubunit abundanceSGK1Channel activityTotal proteinImportant regulatorKinase 1Tetracycline-inducible promoterActivationCellsApical membraneATPase activityPrevious studiesATPase functionChronic
2002
Activation of the Na-K-Cl Cotransporter NKCC1 Detected with a Phospho-specific Antibody*
Flemmer AW, Giménez I, Dowd BF, Darman RB, Forbush B. Activation of the Na-K-Cl Cotransporter NKCC1 Detected with a Phospho-specific Antibody*. Journal Of Biological Chemistry 2002, 277: 37551-37558. PMID: 12145305, DOI: 10.1074/jbc.m206294200.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsAntibody SpecificityBinding SitesColonDipeptidesEpinephrineHumansIon TransportIsoproterenolKineticsMolecular Sequence DataMutagenesis, Site-DirectedPhosphatesPhosphopeptidesRatsRecombinant ProteinsSodium-Potassium-Chloride SymportersSolute Carrier Family 12, Member 2ThreonineTracheaConceptsPhospho-specific antibodiesNa-K-Cl cotransporter NKCC1Divergent vertebrate speciesBasolateral membraneShark rectal glandPhosphorylation of NKCC1Regulatory lociHEK-293 cellsHigh conservationThreonine residuesPhosphorylation experimentsVertebrate speciesRegulatory domainCotransporter NKCC1NKCC1 regulationN-terminusRectal glandCell membranePhosphorylationImmunofluorescence analysisAgonist stimulationActivation stateGland tubulesRectal gland tubulesEpithelial cells
2000
The Na-K-Cl Cotransporter of Secretory Epithelia
Haas M, Forbush B. The Na-K-Cl Cotransporter of Secretory Epithelia. Annual Review Of Physiology 2000, 62: 515-534. PMID: 10845101, DOI: 10.1146/annurev.physiol.62.1.515.Peer-Reviewed Original ResearchConceptsNa-K-ClNa-K-Cl cotransporterRegulation of NKCC1Secretory epitheliaNa-K-Cl cotransporter isoformsK-Cl cotransporter isoformsApical Cl- channelsNa-Cl cotransporterNon-epithelial cellsNKCC1 regulationCl- channelsBasolateral membraneCotransporter proteinFluid secretionNKCC isoformsNKCC1Ascending limbHenle's loopEpithelial cellsMacula densaIon transport proteinsTransport NaEpitheliaCotransporterCell volume
1998
Comparison of Na-K-Cl Cotransporters NKCC1, NKCC2, AND THE HEK CELL Na-K-Cl COTRANSPORTER*
Isenring P, Jacoby S, Payne J, Forbush B. Comparison of Na-K-Cl Cotransporters NKCC1, NKCC2, AND THE HEK CELL Na-K-Cl COTRANSPORTER*. Journal Of Biological Chemistry 1998, 273: 11295-11301. PMID: 9556622, DOI: 10.1074/jbc.273.18.11295.Peer-Reviewed Original ResearchConceptsNa-K-Cl cotransporterHEK-293 cellsNa-K-Cl cotransporter NKCC1Epithelial cellsBasolateral Cl- exitHEK-293Reverse transcriptase-polymerase chain reactionNa-K-ClRenal epithelial cellsEpithelial Cl- transportResting level of activityMaintenance of cell volumeSecretory epithelial cellsInhibitor bumetanideCotransporter NKCC1NKCC2 activityCl- exitNKCC1Cl- transportNKCC2CotransporterVolume responseNa affinityResting levelBumetanideThe Na-K-Cl Cotransporters
Haas M, Forbush B. The Na-K-Cl Cotransporters. Journal Of Bioenergetics And Biomembranes 1998, 30: 161-172. PMID: 9672238, DOI: 10.1023/a:1020521308985.Peer-Reviewed Original ResearchConceptsNa-K-Cl cotransporterNa-K-ClNa-K-Cl cotransport activityNa-K-Cl cotransporter isoformsCotransport activitySecretory epitheliaApical Cl- channelsHypokalemic metabolic alkalosisCation-chloride cotransportersNKCC2 geneCl- channelsBartter's syndromeVolume depletionBasolateral membraneCotransporter proteinApical membraneSalt wastingMetabolic alkalosisSecreting epitheliaNonepithelial cellsAscending limbHenle's loopK-ClCotransporterEpithelial cells
1994
The molecular basis of chloride transport in shark rectal gland.
Riordan J, Forbush B, Hanrahan J. The molecular basis of chloride transport in shark rectal gland. Journal Of Experimental Biology 1994, 196: 405-418. PMID: 7529818, DOI: 10.1242/jeb.196.1.405.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological Transport, ActiveCarrier ProteinsChloride ChannelsChloridesCystic Fibrosis Transmembrane Conductance RegulatorEpitheliumHomeostasisHumansMembrane ProteinsModels, BiologicalPotassium ChannelsProtein Structure, SecondarySalt GlandSecond Messenger SystemsSharksSodium-Potassium-Chloride SymportersSodium-Potassium-Exchanging ATPaseConceptsApical Cl- channelsCl- channelsProtein kinase ACl- secretionBasolateral transport proteinsTransepithelial Cl- secretionNa+/K(+)-ATPase pumpIntracellular chloride concentrationStimulation of secretionActive Na+ extrusionBasolateral cotransporterShark rectal glandNa+/K+/2Cl- cotransporterCl- movementK+ channelsK+ exitNa+/K(+)-ATPaseApical componentParacellular flowPrimary stimulationEpithelial cellsExcellent experimental modelCotransporterCFTRRectal gland of elasmobranchs
1987
Photolabeling of a 150-kDa (Na + K + Cl) cotransport protein from dog kidney with a bumetanide analogue
Haas M, Forbush B. Photolabeling of a 150-kDa (Na + K + Cl) cotransport protein from dog kidney with a bumetanide analogue. American Journal Of Physiology 1987, 253: c243-c252. PMID: 3618761, DOI: 10.1152/ajpcell.1987.253.2.c243.Peer-Reviewed Original ResearchConceptsKidney cortexBinding to kidney membranesDog kidney cortexSite of actionCotransporter proteinApical membraneAscending limbBumetanideCotransport systemHenle's loopEpithelial cellsPhotolysis mediumKidney membranesK 1/2Mammalian kidneyCrude membranesBenzophenone analoguesKidneyDog kidneyPresence of NaCortexPhotolysisSucrose density gradientsMolecular mass proteinsDogs
1985
Monoclonal antibody to Na,K-ATPase: Immunocytochemical localization along nephron segments
Kashgarian M, Biemesderfer D, Caplan M, Forbush B. Monoclonal antibody to Na,K-ATPase: Immunocytochemical localization along nephron segments. Kidney International 1985, 28: 899-913. PMID: 3003443, DOI: 10.1038/ki.1985.216.Peer-Reviewed Original ResearchConceptsMonoclonal antibodiesNephron segmentsEvidence of labellingRenal tubular epithelial cellsTubular epithelial cellsK-ATPaseThick ascending limbOnly principal cellsDifferent nephron segmentsDog antigensBasal-lateral membranesSignificant antibodiesAscending limbMesangial regionHenle's loopOccasional cellsRenal medullaOuter renal medullaAbundant antibodyAntibodiesApical labelingTubule segmentsPrincipal cellsEpithelial cellsImmunocytochemical localization