2015
Regulation of glomerulotubular balance. III. Implication of cytosolic calcium in flow-dependent proximal tubule transport
Du Z, Weinbaum S, Weinstein AM, Wang T. Regulation of glomerulotubular balance. III. Implication of cytosolic calcium in flow-dependent proximal tubule transport. American Journal Of Physiology. Renal Physiology 2015, 308: f839-f847. PMID: 25651568, PMCID: PMC4398834, DOI: 10.1152/ajprenal.00601.2014.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBicarbonatesBiological TransportCalciumCalcium-Transporting ATPasesChelating AgentsCytosolEnzyme InhibitorsIn Vitro TechniquesInositol 1,4,5-Trisphosphate ReceptorsKidney Tubules, ProximalKineticsMice, Inbred C57BLPerfusionRenal ReabsorptionSodiumSodium-Hydrogen Exchanger 3Sodium-Hydrogen ExchangersConceptsNa/H exchanger 3Flow-induced increaseGlomerulotubular balanceProximal tubulesHCO3- reabsorptionCytosolic calciumAngiotensin II receptorsProximal tubule transportReceptor-mediated intracellularReabsorption of fluidMouse proximal tubulesChelator BAPTA-AMPerfusion rateH-ATPase activityControl tubulesII receptorsTubule transportBAPTA-AMInhibitor thapsigarginExchanger 3ReabsorptionBaseline flowHCO3- transportTubulesBAPTA
2013
REGULATION OF GLOMERULOTUBULAR BALANCE IV: IMPLICATION OF AQUAPORIN 1 IN FLOW‐DEPENDENT TRANSPORT AND CELL VOLUME
Du Z, Yan Q, Weinbaum S, Weinstein A, Wang T. REGULATION OF GLOMERULOTUBULAR BALANCE IV: IMPLICATION OF AQUAPORIN 1 IN FLOW‐DEPENDENT TRANSPORT AND CELL VOLUME. The FASEB Journal 2013, 27: 912.27-912.27. DOI: 10.1096/fasebj.27.1_supplement.912.27.Peer-Reviewed Original ResearchKO miceProximal tubulesAQP-1Proximal NaPerfusion rateWT miceFlow-dependent changesCell volumeVolume reabsorptionWater reabsorptionMiceMouse kidneyHCO-3ReabsorptionPeritubular membraneSignificant differencesTubulesAquaporin-1Flow-dependent transportKOH-ATPaseKidneyPrincipal pathwayMicroperfusionPathway
2010
Mechanotransduction in the renal tubule
Weinbaum S, Duan Y, Satlin LM, Wang T, Weinstein AM. Mechanotransduction in the renal tubule. American Journal Of Physiology. Renal Physiology 2010, 299: f1220-f1236. PMID: 20810611, PMCID: PMC3006307, DOI: 10.1152/ajprenal.00453.2010.Peer-Reviewed Original ResearchROLE OF DOPAMINE IN MODULATING FLOW‐DEPENDENT SODIUM AND BICARBONATE TRANSPORT IN MOUSE PROXIMAL TUBULE
Du Z, Yan Q, Weinbaum S, Weinstein A, Wang T. ROLE OF DOPAMINE IN MODULATING FLOW‐DEPENDENT SODIUM AND BICARBONATE TRANSPORT IN MOUSE PROXIMAL TUBULE. The FASEB Journal 2010, 24: 1024.2-1024.2. DOI: 10.1096/fasebj.24.1_supplement.1024.2.Peer-Reviewed Original ResearchProximal tubule transportEffects of dopamineMouse proximal tubulesTubule transportProximal tubulesNHE3 endocytosisMin/PKA-mediated mechanismRole of dopamineLuminal flow ratePmoles/min/Luminal dopamineKidney proximal tubulesPerfusion rateSodium reabsorptionNet reabsorptionDopamineReabsorptionCAMP-dependent protein kinase inhibitor H89SCH23390SulpirideInhibitor H89TubulesBicarbonate transportHCO-3
2006
Flow-activated transport events along the nephron
Wang T. Flow-activated transport events along the nephron. Current Opinion In Nephrology & Hypertension 2006, 15: 530-536. PMID: 16914967, DOI: 10.1097/01.mnh.0000242180.46362.c4.Peer-Reviewed Original ResearchConceptsProximal tubulesCultured proximal tubule cellsGlomerular filtration rateProximal tubule cellsSystemic hormonal regulationMouse proximal tubulesFiltration rateH-ATPase activityHCO3- absorptionTubule cellsReceptor localizationENOS translocationNHE3 activityHormonal regulationBrush border microvilliTubulesNephronSecond messengerUnanswered questionsTransduction mechanisms
2005
Role of PDZK1 in membrane expression of renal brush border ion exchangers
Thomson RB, Wang T, Thomson BR, Tarrats L, Girardi A, Mentone S, Soleimani M, Kocher O, Aronson PS. Role of PDZK1 in membrane expression of renal brush border ion exchangers. Proceedings Of The National Academy Of Sciences Of The United States Of America 2005, 102: 13331-13336. PMID: 16141316, PMCID: PMC1201624, DOI: 10.1073/pnas.0506578102.Peer-Reviewed Original ResearchConceptsProximal tubulesExpression of NHE3Functional activityRole of PDZK1Protein PDZK1Reabsorption of NaBrush border expressionMammalian kidneyCFEXBrush border localizationMutant miceGST fusion proteinProtein expressionKidneyBrush border membrane proteinsExchanger NHE3Membrane expressionNHE3Brush borderBrush border membrane vesiclesPDZK1 interactionTubulesNormal expressionMembrane proteinsPDZK1
2004
Renal and intestinal transport defects in Slc26a6-null mice
Wang Z, Wang T, Petrovic S, Tuo B, Riederer B, Barone S, Lorenz JN, Seidler U, Aronson PS, Soleimani M. Renal and intestinal transport defects in Slc26a6-null mice. American Journal Of Physiology - Cell Physiology 2004, 288: c957-c965. PMID: 15574486, DOI: 10.1152/ajpcell.00505.2004.Peer-Reviewed Original ResearchConceptsWild-type miceProximal tubulesSlc26a6-null miceHCO3- secretionKidney proximal tubulesApical membrane ClNull miceBaseline rateNormal blood pressureCl-/formate exchangeBlood pressureKidney functionElectrolyte profileMucosal tissuesIntestinal physiologyUssing chambersSmall intestineMiceFluid absorptionNaCl absorptionStatistical significanceCl-/HCO3NaCl transportDuodenumTubules
2003
Role of PKC and calcium in modulation of effects of angiotensin II on sodium transport in proximal tubule
Du Z, Ferguson W, Wang T. Role of PKC and calcium in modulation of effects of angiotensin II on sodium transport in proximal tubule. American Journal Of Physiology. Renal Physiology 2003, 284: f688-f692. PMID: 12527554, DOI: 10.1152/ajprenal.00261.2002.Peer-Reviewed Original ResearchConceptsAng IIM ANG IIProximal tubulesFluid absorptionRole of PKCLuminal ANG IIAng II concentrationsIntracellular calcium mobilizationProximal tubule transportProximal tubular fluidTrimethoxybenzoic acid 8Modulation of effectsCAMP-independent mechanismAngiotensin IIIntracellular calciumTMB-8Calcium mobilizationTubule transportTubular fluidMicroperfusion techniqueSodium transportSuperficial segmentsRabbit kidneyPhysiological concentrationsTubules
2002
Formate-stimulated NaCl absorption in the proximal tubule is independent of the pendrin protein
Karniski LP, Wang T, Everett LA, Green ED, Giebisch G, Aronson PS. Formate-stimulated NaCl absorption in the proximal tubule is independent of the pendrin protein. American Journal Of Physiology. Renal Physiology 2002, 283: f952-f956. PMID: 12372770, DOI: 10.1152/ajprenal.00182.2002.Peer-Reviewed Original ResearchConceptsProximal tubulesChloride/formate exchangeNaCl reabsorptionChloride reabsorptionElectroneutral NaCl reabsorptionNaCl absorptionRole of pendrinFormate exchangePds-knockout mouseRecycling of formatePendrin proteinReabsorptionMicePendrinBrush border membrane vesiclesTubulesPresent studyChloride transportApical membraneRole of iNOS and eNOS in modulating proximal tubule transport and acid-base balance
Wang T. Role of iNOS and eNOS in modulating proximal tubule transport and acid-base balance. American Journal Of Physiology. Renal Physiology 2002, 283: f658-f662. PMID: 12217856, DOI: 10.1152/ajprenal.00243.2001.Peer-Reviewed Original ResearchConceptsNeuronal nitric oxide synthaseInducible NOSEndothelial NOSProximal tubulesKnockout miceRole of iNOSNOS knockout miceENOS knockout miceINOS knockout miceIsoforms of NOSNitric oxide synthaseProximal tubule transportAcid-base statusAcid-base balanceINOS knockoutWild-type controlsKidney proximal tubulesMetabolic acidosisOxide synthaseTubule transportInhibitor LMiceFluid absorptionNOSTubules
2001
Role of NHE isoforms in mediating bicarbonate reabsorption along the nephron
Wang T, Hropot M, Aronson P, Giebisch G. Role of NHE isoforms in mediating bicarbonate reabsorption along the nephron. American Journal Of Physiology. Renal Physiology 2001, 281: f1117-f1122. PMID: 11704563, DOI: 10.1152/ajprenal.2001.281.6.f1117.Peer-Reviewed Original ResearchConceptsLoop of HenleHOE 694Proximal tubulesAddition of ethylisopropylamilorideDistal convoluted tubuleBicarbonate reabsorptionConvoluted tubulesSitu microperfusionRat kidneySignificant inhibitionNHE isoformsHenlePredominant isoformTubulesNHE3Functional roleInhibitionNHE2Apical membraneIsoformsApical isoformKidneyMicroperfusionEthylisopropylamilorideNephron
1998
Effect of metabolic acidosis on NaCl transport in the proximal tubule
Wang T, Egbert A, Aronson P, Giebisch G. Effect of metabolic acidosis on NaCl transport in the proximal tubule. American Journal Of Physiology 1998, 274: f1015-f1019. PMID: 9841491, DOI: 10.1152/ajprenal.1998.274.6.f1015.Peer-Reviewed Original ResearchConceptsMetabolic acidosisProximal tubulesNaCl reabsorptionRat proximal tubule segmentsAcidotic ratsNaCl transportNaCl absorptionLate proximal tubuleProximal tubule segmentsControl ratsCapillary perfusateBicarbonate absorptionNephron segmentsAcidosisTubule segmentsRatsRecent evidenceJclTubulesFormate exchangeReabsorptionDifferential regulation
1995
Effects of chronic hyperfiltration on proximal tubule bicarbonate transport and cell electrolytes
Ohno A, Beck F, Pfaller W, Giebisch G, Wang T. Effects of chronic hyperfiltration on proximal tubule bicarbonate transport and cell electrolytes. Kidney International 1995, 48: 712-721. PMID: 7474656, DOI: 10.1038/ki.1995.342.Peer-Reviewed Original ResearchConceptsNa/H exchangeProximal tubulesUNX ratsK-ATPase activityBicarbonate absorptionBicarbonate transportChronic hyperfiltrationRemnant kidneyUnilateral nephrectomyFiltration rateCortical tubulesRenal clearanceBicarbonate levelsH secretionFluid absorptionMaximal transport rateBasolateral ion transportCompensatory responseMarked stimulationRubidium uptakeSimilar stimulationCell ion concentrationsBasolateral NaTubulesUNXStimulation of chloride transport by cAMP in rat proximal tubules
Wang T, Segal AS, Giebisch G, Aronson PS. Stimulation of chloride transport by cAMP in rat proximal tubules. American Journal Of Physiology 1995, 268: f204-f210. PMID: 7864157, DOI: 10.1152/ajprenal.1995.268.2.f204.Peer-Reviewed Original ResearchConceptsRat proximal tubuleProximal tubulesDibutyryl cAMPCapillary perfusateLate proximal tubuleProximal tubule cellsCl- channel blockerCl- channelsTranscellular Cl absorptionAddition of forskolinLuminal DIDSSensitive Cl- channelBasolateral membraneLuminal perfusateTubule cellsCAMP productionFluid absorptionCl absorptionMM ClPerfusateJclRecent evidenceLuminal membraneTubulesEffect of cAMP
1993
Renal bicarbonate reabsorption in the rat. IV. Bicarbonate transport mechanisms in the early and late distal tubule.
Wang T, Malnic G, Giebisch G, Chan Y. Renal bicarbonate reabsorption in the rat. IV. Bicarbonate transport mechanisms in the early and late distal tubule. Journal Of Clinical Investigation 1993, 91: 2776-2784. PMID: 8390489, PMCID: PMC443344, DOI: 10.1172/jci116519.Peer-Reviewed Original ResearchConceptsLate distal tubuleEarly distal tubuleDistal tubulesBicarbonate absorptionTubule segmentsFluid absorptionBicarbonate transportLuminal bicarbonate concentrationNet bicarbonate transportRenal bicarbonate reabsorptionLow K dietDistal tubule segmentsBicarbonate concentrationK-ATPase inhibitorPmol/minK dietBicarbonate secretionMicroperfusion experimentsBicarbonate reabsorptionH-ATPaseTubulesBafilomycin A1High rateRatsATPase inhibitor
1992
Effects of formate and oxalate on volume absorption in rat proximal tubule
Wang T, Giebisch G, Aronson PS. Effects of formate and oxalate on volume absorption in rat proximal tubule. American Journal Of Physiology 1992, 263: f37-f42. PMID: 1636743, DOI: 10.1152/ajprenal.1992.263.1.f37.Peer-Reviewed Original ResearchConceptsLuminal perfusateProximal tubulesCapillary perfusateLate proximal tubuleRat proximal tubuleHCO3- Ringer's solutionPhysiological rangePeritubular capillariesChannel blockersStandard Ringer solutionPerfusateFluid absorptionStimulatory effectNaCl absorptionRinger's solutionTubulesEffect of formateBlockers
1989
Neural control of distal tubular bicarbonate and fluid transport
Wang T, Chan Y. Neural control of distal tubular bicarbonate and fluid transport. American Journal Of Physiology 1989, 257: f72-f76. PMID: 2750926, DOI: 10.1152/ajprenal.1989.257.1.f72.Peer-Reviewed Original ResearchConceptsDistal tubulesRenal nerve activityProximal tubular reabsorptionEarly distal tubuleEffects of denervationLate distal tubuleDenervated kidneysReabsorb bicarbonateSham denervationNerve activityElectrolyte excretionTubular reabsorptionNeural regulationDenervationFluid reabsorptionBicarbonate absorptionFluid absorptionFluid samplesNeural controlVolume markerMicroperfusion methodTubulesBicarbonate concentrationJHCO3Reabsorption