2025
Physiologic mechanisms underlying polycystic kidney disease
Boletta A, Caplan M. Physiologic mechanisms underlying polycystic kidney disease. Physiological Reviews 2025, 105: 1553-1607. PMID: 39938884, PMCID: PMC12174308, DOI: 10.1152/physrev.00018.2024.Peer-Reviewed Original ResearchPrimary ciliaPolycystic kidney diseaseTrafficking of proteinsHuman ciliopathiesExtracellular signalsMultiple genesKidney diseaseProtein productionMolecular basisCell biologyMonogenic disordersCyst formationGenesRenal epithelial cellsProteinCiliaBiochemical informationApical surfaceEpithelial cellsFunctional expressionPhysiological propertiesWealth of informationPhysiological mechanismsCellsFibrocystin
2024
Volume microscopic analysis of membrane contact sites in mouse kidney renal proximal tubule epithelial cells
Pandya R, Pang S, Lackner E, Reyna-Neyra A, Li W, Sy K, Burdyniuk M, Weisz O, Xu C, Caplan M. Volume microscopic analysis of membrane contact sites in mouse kidney renal proximal tubule epithelial cells. Physiology 2024, 39: 1086. DOI: 10.1152/physiol.2024.39.s1.1086.Peer-Reviewed Original ResearchMembrane contact sitesProximal tubule epithelial cellsTubule epithelial cellsEndoplasmic reticulumEpithelial cellsContact sitesPlasma membraneER volumeRenal proximal tubule epithelial cellsFunction of membrane contact sitesVolume of endoplasmic reticulumProximal tubule cellsInter-organelle communicationBasal-lateral surfacesRenal epithelial cellsAdvanced imaging techniquesMedian volumeTubule cellsMale miceCell plasma membraneRenal cortexScanning electron microscopyFIB-SEMMouse kidneySmooth ER
2023
Inactivation of Invs/Nphp2 in renal epithelial cells drives infantile nephronophthisis like phenotypes in mouse
Li Y, Xu W, Makova S, Brueckner M, Sun Z. Inactivation of Invs/Nphp2 in renal epithelial cells drives infantile nephronophthisis like phenotypes in mouse. ELife 2023, 12: e82395. PMID: 36920028, PMCID: PMC10154023, DOI: 10.7554/elife.82395.Peer-Reviewed Original ResearchConceptsFlox/Valproic acidRenal fibrosisCyst formationEnd-stage renal diseaseMutant miceHistone deacetylase inhibitor valproic acidKidney function declineStage renal diseaseCell proliferationInhibitor valproic acidEpithelial-stromal crosstalkKnockout mouse modelRenal cyst formationCyst burdenRenal diseaseFunction declineInterstitial fibrosisDisease progressionStromal fibrosisTargeted therapyInfantile nephronophthisisMouse modelMyofibroblast activationRenal epithelial cells
2020
Mechanisms involved in AMPK-mediated deposition of tight junction components to the plasma membrane
Wu J, Rowart P, Jouret F, Gassaway BM, Rajendran V, Rinehart J, Caplan MJ. Mechanisms involved in AMPK-mediated deposition of tight junction components to the plasma membrane. American Journal Of Physiology - Cell Physiology 2020, 318: c486-c501. PMID: 31913699, PMCID: PMC7099514, DOI: 10.1152/ajpcell.00422.2019.Peer-Reviewed Original ResearchConceptsJunction assemblyPlasma membranePhospho-defective mutantsEpithelial junction assemblyMDCK renal epithelial cellsProtein kinase activationJunction-associated proteinsRenal epithelial cellsActive GTPEpithelial polarizationTight junction componentsZO-1 localizationAMPK activationKinase activationKey regulatorAfadinAMPKImportant regulatorJunction componentsProtein zonula occludens-1Par3Epithelial cellsTight junction protein zonula occludens-1RegulatorAssembly
2019
Cell-Autonomous Hedgehog Signaling Is Not Required for Cyst Formation in Autosomal Dominant Polycystic Kidney Disease
Ma M, Legué E, Tian X, Somlo S, Liem KF. Cell-Autonomous Hedgehog Signaling Is Not Required for Cyst Formation in Autosomal Dominant Polycystic Kidney Disease. Journal Of The American Society Of Nephrology 2019, 30: 2103-2111. PMID: 31451534, PMCID: PMC6830786, DOI: 10.1681/asn.2018121274.Peer-Reviewed Original ResearchConceptsHedgehog pathwayPolycystin-1Polycystin-2Autosomal dominant polycystic kidney diseaseMain causal genePolycystic kidney diseaseKidney cyst formationEpithelial cellsLevels of HedgehogCiliary genesDominant polycystic kidney diseaseMutant mouse kidneysRenal epithelial cellsCausal genesSignal transductionCell signalingGenetic manipulationPrimary ciliaCyst formationMultipass transmembraneHedgehog signalingConditional inactivationUnknown pathwayHedgehogKidney phenotypeIn vivo analysis of renal epithelial cells in zebrafish
Li Y, Xu W, Jerman S, Sun Z. In vivo analysis of renal epithelial cells in zebrafish. Methods In Cell Biology 2019, 154: 163-181. PMID: 31493817, DOI: 10.1016/bs.mcb.2019.04.016.Peer-Reviewed Original Research
2018
Newly synthesized polycystin‐1 takes different trafficking pathways to the apical and ciliary membranes
Gilder AL, Chapin HC, Padovano V, Hueschen CL, Rajendran V, Caplan MJ. Newly synthesized polycystin‐1 takes different trafficking pathways to the apical and ciliary membranes. Traffic 2018, 19: 933-945. PMID: 30125442, PMCID: PMC6237641, DOI: 10.1111/tra.12612.Peer-Reviewed Original ResearchConceptsPolycystin-1Ciliary deliveryBrefeldin AApical deliveryRenal epithelial cellsN-terminal fragmentPolycystin-2LLC-PK1 renal epithelial cellsDifferent trafficking pathwaysTrans-Golgi networkApical membraneEpithelial cellsCultured epithelial cellsTrafficking pathwaysTransmembrane proteinGolgi compartmentPrimary ciliaC-terminal fragmentCiliary membraneC-terminusAutocatalytic cleavageDistinct pathwaysIncubating cellsCell membraneAutosomal dominant polycystic kidney disease
2017
Adenylyl cyclase 5 deficiency reduces renal cyclic AMP and cyst growth in an orthologous mouse model of polycystic kidney disease
Wang Q, Cobo-Stark P, Patel V, Somlo S, Han PL, Igarashi P. Adenylyl cyclase 5 deficiency reduces renal cyclic AMP and cyst growth in an orthologous mouse model of polycystic kidney disease. Kidney International 2017, 93: 403-415. PMID: 29042084, PMCID: PMC5794572, DOI: 10.1016/j.kint.2017.08.005.Peer-Reviewed Original ResearchConceptsPolycystic kidney diseaseOrthologous mouse modelSingle mutant miceMutant miceRenal epithelial cellsCyst growthCAMP levelsKidney diseaseEpithelial cellsMouse modelTreatment of PKDA-kinase anchoring protein 150Renal cyclic AMPKidneys of miceCyclic AMPDouble mutant miceRenal cAMP levelsInhibition of AC5Kidney injuryLevels of cAMPPrimary ciliaKidney enlargementKidney functionCyst indexMiceTissue-specific exosome biomarkers for noninvasively monitoring immunologic rejection of transplanted tissue
Vallabhajosyula P, Korutla L, Habertheuer A, Yu M, Rostami S, Yuan CX, Reddy S, Liu C, Korutla V, Koeberlein B, Trofe-Clark J, Rickels MR, Naji A. Tissue-specific exosome biomarkers for noninvasively monitoring immunologic rejection of transplanted tissue. Journal Of Clinical Investigation 2017, 127: 1375-1391. PMID: 28319051, PMCID: PMC5373894, DOI: 10.1172/jci87993.Peer-Reviewed Original ResearchConceptsRenal transplantationImmunologic rejectionTransplanted tissueClinical settingBiomarker platformAppearance of hyperglycemiaIslet transplant modelIslet β-cellsDonor exosomesTransplant isletsHLA antibodiesRecipient bloodTransplant modelRecipient circulationXenogeneic modelRecipient plasmaRenal epithelial cellsTransplant tissueHuman isletsΒ-cellsBiomarker potentialTransplantationNoninvasive windowEpithelial cellsExosomal microRNAs
2015
Akt Substrate of 160 kD Regulates Na+,K+-ATPase Trafficking in Response to Energy Depletion and Renal Ischemia
Alves DS, Thulin G, Loffing J, Kashgarian M, Caplan MJ. Akt Substrate of 160 kD Regulates Na+,K+-ATPase Trafficking in Response to Energy Depletion and Renal Ischemia. Journal Of The American Society Of Nephrology 2015, 26: 2765-2776. PMID: 25788531, PMCID: PMC4625659, DOI: 10.1681/asn.2013101040.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiotinylationCell LineCytoplasmDogsDynaminsEndocytosisEpithelial CellsGTPase-Activating ProteinsHumansIschemiaKidneyKidney DiseasesMadin Darby Canine Kidney CellsMaleMiceMice, KnockoutMicroscopy, FluorescencePhosphorylationProtein TransportReperfusion InjuryRNA, Small InterferingSignal TransductionSodium-Potassium-Exchanging ATPaseConceptsRenal epithelial cellsATPase traffickingIntracellular compartmentsEpithelial cell polarityEpithelial cellsBasolateral plasma membraneGlucose transporter 4Cultured epithelial cellsCell polarityRab GTPaseAkt substratePlasma membraneSubcellular distributionAS160Energy depletionDirect bindingTransporter 4TraffickingDirect roleK-ATPaseATPaseTubular soluteIntracellular accumulationCellsCompartments
2014
Hepatocyte Growth Factor (Hgf) Stimulates Low Density Lipoprotein Receptor-related Protein (Lrp) 5/6 Phosphorylation and Promotes Canonical Wnt Signaling*
Koraishy FM, Silva C, Mason S, Wu D, Cantley LG. Hepatocyte Growth Factor (Hgf) Stimulates Low Density Lipoprotein Receptor-related Protein (Lrp) 5/6 Phosphorylation and Promotes Canonical Wnt Signaling*. Journal Of Biological Chemistry 2014, 289: 14341-14350. PMID: 24692544, PMCID: PMC4022900, DOI: 10.1074/jbc.m114.563213.Peer-Reviewed Original ResearchConceptsΒ-catenin stabilizationRenal ischemic injuryLRP5/6 phosphorylationEpithelial cell responsesRenal proximal tubulesEpithelial cell apoptosisHepatocyte growth factorCanonical WntActive GSK3Ischemic injuryRenal epithelial cellsProximal tubulesCell responsesCanonical Wnt signalingHGF treatmentGrowth factorCell apoptosisEpithelial cellsHGFMet receptorImportant transactivatorWnt signalingInjuryLRP5/6MetSTrafficking to the Apical and Basolateral Membranes in Polarized Epithelial Cells
Stoops EH, Caplan MJ. Trafficking to the Apical and Basolateral Membranes in Polarized Epithelial Cells. Journal Of The American Society Of Nephrology 2014, 25: 1375-1386. PMID: 24652803, PMCID: PMC4073435, DOI: 10.1681/asn.2013080883.Peer-Reviewed Original ResearchConceptsTrafficking routesCell type-specific variationsDistinct protein compositionTrans-Golgi networkPolarized epithelial cellsCellular trafficking pathwaysEpithelial cellsBasolateral membraneType-specific variationsBasolateral proteinsTrafficking pathwaysRecycling endosomesRenal epithelial cellsDifferent developmental statesCarrier vesiclesProtein distributionProtein compositionTransport functionProteinK-ATPaseCurrent understandingCellsPathwayRemarkable capacityDevelopmental state
2013
Hypertonic stress and cell death. Focus on “Multiple cell death pathways are independently activated by lethal hypertonicity in renal epithelial cells”
Moeckel GW. Hypertonic stress and cell death. Focus on “Multiple cell death pathways are independently activated by lethal hypertonicity in renal epithelial cells”. American Journal Of Physiology - Cell Physiology 2013, 305: c1009-c1010. PMID: 24005043, DOI: 10.1152/ajpcell.00263.2013.Peer-Reviewed Original ResearchConceptsCell death pathwaysMultiple cell death pathwaysRenal epithelial cellsDeath pathwaysHypertonic stressCell deathEpithelial cellsMechanoprotection by Polycystins Against Apoptosis is Mediated Through the Opening of Stretch‐Activated K2P Channels
Duprat F, Peyronnet R, Sharif‐Naeini R, Folgering J, Arhatte M, Jodar M, Boustany C, Gallian C, Tauc M, Duranton C, Rubera I, Lesage F, Pei Y, Peters D, Somlo S, Sachs F, Patel A, Honoré E. Mechanoprotection by Polycystins Against Apoptosis is Mediated Through the Opening of Stretch‐Activated K2P Channels. The FASEB Journal 2013, 27: 912.2-912.2. DOI: 10.1096/fasebj.27.1_supplement.912.2.Peer-Reviewed Original ResearchCell apoptosisTwo-pore KAutosomal dominant polycystic kidney diseaseRenal epithelial cellsTubular cell apoptosisPKD2 geneEpithelial cell proliferationK2P channelsCell proliferationMechanoprotectionPolycystinsApoptosisEpithelial cellsDominant polycystic kidney diseasePKD1Tubular epithelial cell proliferationPolycystic kidney diseaseFunctional relationshipMechanical stressUnresolved questionsCellsFondation de FranceKidney diseaseKidney failureGenesEpithelial morphogenesis of MDCK cells in three-dimensional collagen culture is modulated by interleukin-8
Wells EK, Yarborough O, Lifton RP, Cantley LG, Caplan MJ. Epithelial morphogenesis of MDCK cells in three-dimensional collagen culture is modulated by interleukin-8. American Journal Of Physiology - Cell Physiology 2013, 304: c966-c975. PMID: 23485708, PMCID: PMC3651639, DOI: 10.1152/ajpcell.00261.2012.Peer-Reviewed Original ResearchConceptsMDCK cellsEpithelial morphogenesisHepatocyte growth factorGene expressionMDCK culturesDifferential gene expressionThree-dimensional collagen culturesReal-time PCR analysisGreater expression differencesMDCK cystsRenal epithelial cellsCollagen gelsGene setsTwo-dimensional cultureExpression differencesHGF stimulationThree-dimensional cultureMicroarray analysisSpherical cystsIL-8 protein expressionPCR analysisTubule-like structuresIL-8 participatesCollagen culturesProtein levelsPolycystin-2 mutations lead to impaired calcium cycling in the heart and predispose to dilated cardiomyopathy
Paavola J, Schliffke S, Rossetti S, Kuo I, Yuan S, Sun Z, Harris PC, Torres VE, Ehrlich BE. Polycystin-2 mutations lead to impaired calcium cycling in the heart and predispose to dilated cardiomyopathy. Journal Of Molecular And Cellular Cardiology 2013, 58: 199-208. PMID: 23376035, PMCID: PMC3636149, DOI: 10.1016/j.yjmcc.2013.01.015.Peer-Reviewed Original ResearchConceptsAutosomal dominant polycystic kidney diseaseHeart failureCalcium cyclingCardiac functionProteins polycystin-1Low cardiac outputHuman autosomal dominant polycystic kidney diseaseDominant polycystic kidney diseaseImpaired calcium cyclingIntracellular calcium cyclingCause of mortalityIntracellular calcium signalingPolycystic kidney diseasePolycystin-2Intracellular calcium channelsAtrioventricular blockCardiac outputKidney diseaseADPKD patientsCardiovascular diseaseRenal epithelial cellsCalcium channelsDilated CardiomyopathyPKD2 mutationsEpithelial cellsChapter 1 Epithelial Cell Structure and Polarity
Matlin K, Caplan M. Chapter 1 Epithelial Cell Structure and Polarity. 2013, 3-43. DOI: 10.1016/b978-0-12-381462-3.00001-x.Peer-Reviewed Original Research
2012
VIP17/MAL expression modulates epithelial cyst formation and ciliogenesis
Takiar V, Mistry K, Carmosino M, Schaeren-Wiemers N, Caplan MJ. VIP17/MAL expression modulates epithelial cyst formation and ciliogenesis. American Journal Of Physiology - Cell Physiology 2012, 303: c862-c871. PMID: 22895261, PMCID: PMC3469709, DOI: 10.1152/ajpcell.00338.2011.Peer-Reviewed Original ResearchConceptsRenal cystogenesisPrimary ciliaVectorial solute transportApical vesicle transportConsequence of defectsEpithelial cellsEpithelial cyst formationPolarized organizationRenal epithelial cellsBasolateral markersVesicle transportIntegral proteinsAbsent ciliaCiliary defectsExpression resultsAberrant sortingCiliary morphologyOverexpressing cellsImmunofluorescence analysisCiliaCystogenesisCiliogenesisOverexpressionCyst developmentTransgenic miceAS160: a new Na,K‐ATPase partner that regulates the trafficking of the sodium pump in response to energy depletion and renal ischemia
Alves D, Thulin G, Loffing J, Kashgarian M, Caplan M. AS160: a new Na,K‐ATPase partner that regulates the trafficking of the sodium pump in response to energy depletion and renal ischemia. The FASEB Journal 2012, 26: lb808-lb808. DOI: 10.1096/fasebj.26.1_supplement.lb808.Peer-Reviewed Original ResearchPlasma membraneRenal epithelial cellsK-ATPaseEpithelial cellsCytoplasmic vesicular compartmentsDifferent cellular poolsCultured epithelial cellsVesicular compartmentsWild typeCellular poolAS160Cytoplasmic accumulationKnockout micePhysiological roleWild-type controlsEnergy depletionRenal ischemiaPhysiological stimuliType controlsCellular NaK-ATPase activityIntracellular accumulationMembraneIschemic kidney injuryCellsMechanoprotection by Polycystins against Apoptosis Is Mediated through the Opening of Stretch-Activated K2P Channels
Peyronnet R, Sharif-Naeini R, Folgering JH, Arhatte M, Jodar M, Boustany C, Gallian C, Tauc M, Duranton C, Rubera I, Lesage F, Pei Y, Peters DJ, Somlo S, Sachs F, Patel A, Honoré E, Duprat F. Mechanoprotection by Polycystins against Apoptosis Is Mediated through the Opening of Stretch-Activated K2P Channels. Cell Reports 2012, 1: 241-250. PMID: 22832196, PMCID: PMC3437542, DOI: 10.1016/j.celrep.2012.01.006.Peer-Reviewed Original ResearchMeSH KeywordsAcidosisActin CytoskeletonAnimalsApoptosisChlorocebus aethiopsCOS CellsCytoprotectionDocosahexaenoic AcidsGene Knockout TechniquesIon Channel GatingKidney Tubules, ProximalMechanotransduction, CellularMiceMice, KnockoutMutant ProteinsPotassium Channels, Tandem Pore DomainProtein SubunitsStress, MechanicalTRPP Cation ChannelsConceptsEpithelial cellsRenal epithelial cellsProximal convoluted tubule epithelial cellsAutosomal dominant polycystic kidney diseaseDominant polycystic kidney diseaseKidney disease statesTubule epithelial cellsPolycystic kidney diseaseHeart failureKidney diseaseImportant pathologiesDisease statesApoptotic cell deathTREK-2K2P channelsCell deathApoptosisCellsAtherosclerosisDiseasePathology
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