2019
Holding open the door reveals a new view of polycystin channel function
Caplan MJ. Holding open the door reveals a new view of polycystin channel function. EMBO Reports 2019, 20: embr201949156. PMID: 31556469, PMCID: PMC6832007, DOI: 10.15252/embr.201949156.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
2016
The polycystins are modulated by cellular oxygen-sensing pathways and regulate mitochondrial function
Padovano V, Kuo IY, Stavola LK, Aerni HR, Flaherty BJ, Chapin HC, Ma M, Somlo S, Boletta A, Ehrlich BE, Rinehart J, Caplan MJ. The polycystins are modulated by cellular oxygen-sensing pathways and regulate mitochondrial function. Molecular Biology Of The Cell 2016, 28: 261-269. PMID: 27881662, PMCID: PMC5231895, DOI: 10.1091/mbc.e16-08-0597.Peer-Reviewed Original ResearchConceptsPolycystin-1Polycystin-2Cellular oxygen-sensing pathwaysMitochondrial functionOxygen-sensing pathwayBroad physiological rolesProlyl hydroxylase domainCellular energy metabolismPolycystin complexIon channel complexEndoplasmic reticulum CaPC1 expressionSubcellular localizationHydroxylase domainMitochondrial CaER CaNovel rolePhysiological roleEnergy metabolismChannel complexChannel activityPolycystinsAutosomal dominant polycystic kidney diseaseReticulum CaDominant polycystic kidney disease
2013
Polycystin-1 cleavage and the regulation of transcriptional pathways
Merrick D, Bertuccio CA, Chapin HC, Lal M, Chauvet V, Caplan MJ. Polycystin-1 cleavage and the regulation of transcriptional pathways. Pediatric Nephrology 2013, 29: 505-511. PMID: 23824180, PMCID: PMC3844055, DOI: 10.1007/s00467-013-2548-y.Peer-Reviewed Original ResearchConceptsAutosomal dominant polycystic kidney diseaseFluid-filled renal cystsPolycystin-2Transcriptional pathwaysPolycystin-1Primary ciliaProtein productsPhysiological functionsCommon genetic causeParent proteinProteolytic cleavageCleavage fragmentsGenetic causeGenesEnd-stage renal diseaseDominant polycystic kidney diseasePolycystic kidney diseaseBiological activityPathwayRenal diseaseKidney diseaseCleavageRenal parenchymaFragmentsRenal cystsPolycystin-1C terminus cleavage and its relation with polycystin-2, two proteins involved in polycystic kidney disease.
Bertuccio CA, Caplan MJ. Polycystin-1C terminus cleavage and its relation with polycystin-2, two proteins involved in polycystic kidney disease. Medicina 2013, 73: 155-62. PMID: 23570767.Peer-Reviewed Original ResearchConceptsPolycystin-1Polycystin-2Autosomal dominant polycystic kidney diseaseTerminal cytoplasmic tailProtein sortingNormal tubulogenesisPolycystic kidney diseaseProtein functionCytoplasmic tailTerminal tailCommon genetic causeCystogenic processExtracellular matrixDifferentiation mechanismsCellular proliferationGenetic causeMultiple cleavagesDominant polycystic kidney diseasePathwayHigh proliferative rateCleavageProliferative rateSecretory characteristicsGenesTubulogenesis
2011
Polycystin-2 and phosphodiesterase 4C are components of a ciliary A-kinase anchoring protein complex that is disrupted in cystic kidney diseases
Choi YH, Suzuki A, Hajarnis S, Ma Z, Chapin HC, Caplan MJ, Pontoglio M, Somlo S, Igarashi P. Polycystin-2 and phosphodiesterase 4C are components of a ciliary A-kinase anchoring protein complex that is disrupted in cystic kidney diseases. Proceedings Of The National Academy Of Sciences Of The United States Of America 2011, 108: 10679-10684. PMID: 21670265, PMCID: PMC3127890, DOI: 10.1073/pnas.1016214108.Peer-Reviewed Original ResearchConceptsPolycystin-2Primary ciliaA-kinase anchoring protein 150Dysregulation of cAMPTranscription factor hepatocyte nuclear factor-1βCystic kidney diseasePolycystic kidney diseaseCAMP levelsAKAP complexesRenal primary ciliaRenal epithelial cellsProtein complexesSensory organellesHuman polycystic kidney diseaseC-terminusProtein 150Hepatocyte nuclear factor-1βCalcium channel activityCell surfaceChannel activityCiliaKidney cystsKidney cellsDifferent gene mutationsEpithelial cells
2010
Polycystin-1 Surface Localization Is Stimulated by Polycystin-2 and Cleavage at the G Protein-coupled Receptor Proteolytic Site
Chapin HC, Rajendran V, Caplan MJ. Polycystin-1 Surface Localization Is Stimulated by Polycystin-2 and Cleavage at the G Protein-coupled Receptor Proteolytic Site. Molecular Biology Of The Cell 2010, 21: 4338-4348. PMID: 20980620, PMCID: PMC3002387, DOI: 10.1091/mbc.e10-05-0407.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlotting, WesternCell MembraneCiliaFluorescent Antibody TechniqueHEK293 CellsHumansImmunoprecipitationKidneyLLC-PK1 CellsMutationPolycystic Kidney, Autosomal DominantProtein BindingProtein IsoformsProtein Processing, Post-TranslationalProtein Structure, TertiaryProtein TransportSwineTRPP Cation ChannelsConceptsG-protein-coupled receptor proteolytic siteGPS cleavagePC2 channel activitySurface deliveryChannel activityProteolytic siteSurface localizationPlasma membrane localizationC-terminal tailHuman embryonic kidney 293 cellsEmbryonic kidney 293 cellsPC2 mutationsKidney 293 cellsMembrane localizationSecretory pathwayMembrane proteinsBinding partnerTerminal tailPolycystin-2Effect of PC2Plasma membraneCiliary membraneTRP familyLLC-PK cellsCation channelsRenal Cystic Proteins in the Olfactory Epithelium (OE)
Pluznick J, Rodriguez‐Gil D, Hull M, Mistry K, Gattone V, Johnson C, Weatherbee S, Greer C, Caplan M. Renal Cystic Proteins in the Olfactory Epithelium (OE). The FASEB Journal 2010, 24: 1002.17-1002.17. DOI: 10.1096/fasebj.24.1_supplement.1002.17.Peer-Reviewed Original ResearchMutant animalsPolycystin-2Olfactory epitheliumIndividual olfactory receptorsDisease-causing mutationsCilia formationΑ-tubulin stainingMurine olfactory epitheliumMature olfactory neuronsMKS3Olfactory receptorsOlfactory neuronsProteinDendritic knobsCiliaPhysiological activityMutant miceAC3 expressionVitro dataMutant ratsRT-PCRSyndrome 1Similar reductionExpressionRats
2009
Polycystin-1 C-terminal Cleavage Is Modulated by Polycystin-2 Expression*
Bertuccio CA, Chapin HC, Cai Y, Mistry K, Chauvet V, Somlo S, Caplan MJ. Polycystin-1 C-terminal Cleavage Is Modulated by Polycystin-2 Expression*. Journal Of Biological Chemistry 2009, 284: 21011-21026. PMID: 19491093, PMCID: PMC2742866, DOI: 10.1074/jbc.m109.017756.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionAmino AcidsAnimalsCalciumCell NucleusChlorocebus aethiopsCOS CellsExtracellular SpaceGenes, ReporterHumansIntracellular SpaceMiceMutant ProteinsProteasome Endopeptidase ComplexProtein Processing, Post-TranslationalProtein TransportStructure-Activity RelationshipTRPP Cation Channels
2008
Regulation of Polycystin‐1 C terminal cleavage by Polycystin‐2
Bertuccio C, Cai Y, Somlo S, Caplan M. Regulation of Polycystin‐1 C terminal cleavage by Polycystin‐2. The FASEB Journal 2008, 22: 942.9-942.9. DOI: 10.1096/fasebj.22.1_supplement.942.9.Peer-Reviewed Original Research
2005
Polycystin-2 Regulates Proliferation and Branching Morphogenesis in Kidney Epithelial Cells*
Grimm DH, Karihaloo A, Cai Y, Somlo S, Cantley LG, Caplan MJ. Polycystin-2 Regulates Proliferation and Branching Morphogenesis in Kidney Epithelial Cells*. Journal Of Biological Chemistry 2005, 281: 137-144. PMID: 16278216, DOI: 10.1074/jbc.m507845200.Peer-Reviewed Original ResearchConceptsPolycystin-2Kidney epithelial cellsPolycystin-1Cell proliferationRegulation of tubulogenesisWild-type proteinMultiple fluid-filled cystsAutosomal dominant polycystic kidney diseaseTubule formationEpithelial cellsExtracellular-related kinaseRegulatory machineryPolycystin proteinsBranching morphogenesisNegative regulatorRespective proteinsGenes PKD1Regulates ProliferationChannel mutantsMorphogenesisFluid-filled cystsCell growthProper growthChannel activityProtein
2004
Mechanical stimuli induce cleavage and nuclear translocation of the polycystin-1 C terminus
Chauvet V, Tian X, Husson H, Grimm DH, Wang T, Hieseberger T, Igarashi P, Bennett AM, Ibraghimov-Beskrovnaya O, Somlo S, Caplan MJ. Mechanical stimuli induce cleavage and nuclear translocation of the polycystin-1 C terminus. Journal Of Clinical Investigation 2004, 114: 1433-1443. PMID: 15545994, PMCID: PMC525739, DOI: 10.1172/jci21753.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCell LineCell NucleusChlorocebus aethiopsCHO CellsCOS CellsCricetinaeCricetulusDogsEmbryo, MammalianEpithelial CellsKidney TubulesMembrane ProteinsMiceMice, TransgenicPolycystic Kidney, Autosomal DominantProteinsSequence DeletionSignal TransductionStress, MechanicalTranscription Factor AP-1TRPP Cation ChannelsConceptsC-terminal tailAutosomal dominant polycystic kidney diseaseCell-matrix interactionsCiliary signalingSecond genePolycystin-2Polycystin-1C-terminusNovel pathwayProteolytic cleavageNuclear translocationMechanical stimuliGenesDominant polycystic kidney diseasePolycystic kidney diseasePrecise mechanismCleavageTerminusSignalingTranslocationNucleusPathway
2003
Polycystin-1 Distribution Is Modulated by Polycystin-2 Expression in Mammalian Cells*
Grimm DH, Cai Y, Chauvet V, Rajendran V, Zeltner R, Geng L, Avner ED, Sweeney W, Somlo S, Caplan MJ. Polycystin-1 Distribution Is Modulated by Polycystin-2 Expression in Mammalian Cells*. Journal Of Biological Chemistry 2003, 278: 36786-36793. PMID: 12840011, DOI: 10.1074/jbc.m306536200.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBlotting, WesternCell LineCell MembraneCells, CulturedCOS CellsDNA, ComplementaryEndoplasmic ReticulumGene Expression RegulationMembrane ProteinsMiceMice, TransgenicMicroscopy, FluorescenceModels, BiologicalMutationPrecipitin TestsProtein BindingProtein BiosynthesisProteinsRecombinant Fusion ProteinsRNA, MessengerTransfectionTRPP Cation ChannelsConceptsPolycystin-1Polycystin-2Mammalian cellsLevel of expressionPolycystin-2 expressionEndoplasmic reticulumCell surfaceCOS-7 cellsNull cell lineRelative expression levelsSubcellular localizationFusion proteinGradient of expressionExpression levelsProteinCell linesPolycystinsAutosomal dominant polycystic kidney diseaseDominant polycystic kidney diseaseDivergent patternsExpressionPolycystic kidney diseaseReticulumCellsLocalization