2024
Glis2 is an early effector of polycystin signaling and a target for therapy in polycystic kidney disease
Zhang C, Rehman M, Tian X, Pei S, Gu J, Bell T, Dong K, Tham M, Cai Y, Wei Z, Behrens F, Jetten A, Zhao H, Lek M, Somlo S. Glis2 is an early effector of polycystin signaling and a target for therapy in polycystic kidney disease. Nature Communications 2024, 15: 3698. PMID: 38693102, PMCID: PMC11063051, DOI: 10.1038/s41467-024-48025-6.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCiliaDisease Models, AnimalHumansKidneyMaleMiceMice, Inbred C57BLMice, KnockoutOligonucleotides, AntisensePolycystic Kidney DiseasesPolycystic Kidney, Autosomal DominantSignal TransductionTRPP Cation ChannelsConceptsMouse models of autosomal dominant polycystic kidney diseaseModel of autosomal dominant polycystic kidney diseasePolycystin signalingAutosomal dominant polycystic kidney diseasePolycystin-1Polycystic kidney diseaseTreat autosomal dominant polycystic kidney diseaseGlis2Primary ciliaKidney tubule cellsSignaling pathwayMouse modelDominant polycystic kidney diseasePotential therapeutic targetTranslatomeAntisense oligonucleotidesKidney diseasePolycystinMouse kidneyFunctional effectorsCyst formationTherapeutic targetInactivationFunctional targetPharmacological targetsA synthetic agent ameliorates polycystic kidney disease by promoting apoptosis of cystic cells through increased oxidative stress
Fedeles B, Bhardwaj R, Ishikawa Y, Khumsubdee S, Krappitz M, Gubina N, Volpe I, Andrade D, Westergerling P, Staudner T, Campolo J, Liu S, Dong K, Cai Y, Rehman M, Gallagher A, Ruchirawat S, Croy R, Essigmann J, Fedeles S, Somlo S. A synthetic agent ameliorates polycystic kidney disease by promoting apoptosis of cystic cells through increased oxidative stress. Proceedings Of The National Academy Of Sciences Of The United States Of America 2024, 121: e2317344121. PMID: 38241440, PMCID: PMC10823221, DOI: 10.1073/pnas.2317344121.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisCell ProliferationCystsDNAKidneyMiceOxidative StressPolycystic Kidney DiseasesPolycystic Kidney, Autosomal DominantTRPP Cation ChannelsConceptsCyst cellsAutosomal dominant polycystic kidney diseaseMouse models of autosomal dominant polycystic kidney diseasePolycystic kidney diseaseModel of autosomal dominant polycystic kidney diseaseKidney diseaseDeveloped primersMitochondrial oxidative stressPathophysiology of autosomal dominant polycystic kidney diseaseOxidative stressInduce apoptosisMitochondrial respirationCystic cellsUp-regulating aerobic glycolysisHomozygous inactivationMonogenic causeDominant polycystic kidney diseaseAerobic glycolysisRenal replacement therapyApoptosisEnd-stage kidney diseaseAnti-tumor agentsAdult mouse modelChronic kidney diseaseAlkylate DNA
2022
XBP1 Activation Reduces Severity of Polycystic Kidney Disease due to a Nontruncating Polycystin-1 Mutation in Mice
Krappitz M, Bhardwaj R, Dong K, Staudner T, Yilmaz DE, Pioppini C, Westergerling P, Ruemmele D, Hollmann T, Nguyen TA, Cai Y, Gallagher AR, Somlo S, Fedeles S. XBP1 Activation Reduces Severity of Polycystic Kidney Disease due to a Nontruncating Polycystin-1 Mutation in Mice. Journal Of The American Society Of Nephrology 2022, 34: 110-121. PMID: 36270750, PMCID: PMC10101557, DOI: 10.1681/asn.2021091180.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnimalsDisease Models, AnimalHumansMiceMutationPolycystic Kidney DiseasesPolycystic Kidney, Autosomal DominantTRPP Cation ChannelsX-Box Binding Protein 1ConceptsPolycystin-1Polycystin-2Functional polycystin-1Amino acid substitution mutationsAutosomal dominant polycystic kidney diseaseIntegral membrane proteinsTranscription factor XBP1Unfolded protein responsePost-translational maturationAcid substitution mutationsEndoplasmic reticulum chaperoneCiliary traffickingXBP1 activityChaperone functionIntegral membraneActive XBP1Polycystic kidney diseaseMembrane proteinsPC1 functionsPrimary ciliaProtein responseHypomorphic mutationsTransgenic activationSubstitution mutationsTransgenic expression
2021
Interdependent Regulation of Polycystin Expression Influences Starvation-Induced Autophagy and Cell Death
Decuypere JP, Van Giel D, Janssens P, Dong K, Somlo S, Cai Y, Mekahli D, Vennekens R. Interdependent Regulation of Polycystin Expression Influences Starvation-Induced Autophagy and Cell Death. International Journal Of Molecular Sciences 2021, 22: 13511. PMID: 34948309, PMCID: PMC8706473, DOI: 10.3390/ijms222413511.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAutophagyCell DeathCell LineEpithelial CellsHumansKidney Tubules, ProximalMicePolycystic Kidney, Autosomal DominantStarvationTRPP Cation ChannelsConceptsProximal tubular epithelial cellsAutosomal dominant polycystic kidney diseaseEarly-stage ADPKD patientsCell deathPC2 expressionDominant polycystic kidney diseaseTubular epithelial cellsRenal cell survivalPolycystin-1Polycystic kidney diseaseCell survivalPolycystin-2Basal autophagyAutophagic cell survivalCell death resistanceADPKD progressionKidney diseaseADPKD patientsLess cell deathPC1 levelsChronic starvationHealthy individualsDuct cellsEpithelial cellsDeath
2019
Polycystin 2 regulates mitochondrial Ca2+ signaling, bioenergetics, and dynamics through mitofusin 2
Kuo IY, Brill AL, Lemos FO, Jiang JY, Falcone JL, Kimmerling EP, Cai Y, Dong K, Kaplan DL, Wallace DP, Hofer AM, Ehrlich BE. Polycystin 2 regulates mitochondrial Ca2+ signaling, bioenergetics, and dynamics through mitofusin 2. Science Signaling 2019, 12 PMID: 31064883, PMCID: PMC6855602, DOI: 10.1126/scisignal.aat7397.Peer-Reviewed Original ResearchConceptsEndoplasmic reticulumPC2 knockdownMitochondrial CaCell culture modelKnockdown of Mfn2Polycystin-2 functionsHuman ADPKD kidneysAutosomal dominant polycystic kidney diseaseKey mitochondrial proteinsAberrant cell proliferationMitochondria-ER contactsCell proliferationER-mitochondrial interfaceKidney cystsIntimate functional relationshipNumerous fluid-filled cystsMitochondrial proteinsCyst-lining epithelial cellsMitofusin 2 expressionCulture modelPolycystin-2Knockdown cellsMitochondrial biogenesisMitofusin 2Mitochondrial respiration
2010
Regulation of ciliary trafficking of polycystin-2 and the pathogenesis of autosomal dominant polycystic kidney disease.
Cai Y, Tang Z. Regulation of ciliary trafficking of polycystin-2 and the pathogenesis of autosomal dominant polycystic kidney disease. Journal Of Central South University Medical Sciences 2010, 35: 93-9. PMID: 20197605, DOI: 10.3969/j.issn.1672-7347.2010.02.001.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCiliaEpithelial CellsHumansKidneyPolycystic Kidney, Autosomal DominantProtein TransportReceptors, Cell SurfaceTRPP Cation ChannelsConceptsAutosomal dominant polycystic kidney diseasePolycystic kidney diseaseDominant polycystic kidney diseaseKidney diseasePathogenesis of ADPKDRenal epithelial cellsAccumulated evidenceEpithelial cellsKidney cystsDiseasePathogenesisPossible roleDisorder characteristicsPolycystin-1Polycystin-2Primary cilia
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
Mutations in SEC63 cause autosomal dominant polycystic liver disease
Davila S, Furu L, Gharavi AG, Tian X, Onoe T, Qian Q, Li A, Cai Y, Kamath PS, King BF, Azurmendi PJ, Tahvanainen P, Kääriäinen H, Höckerstedt K, Devuyst O, Pirson Y, Martin RS, Lifton RP, Tahvanainen E, Torres VE, Somlo S. Mutations in SEC63 cause autosomal dominant polycystic liver disease. Nature Genetics 2004, 36: 575-577. PMID: 15133510, DOI: 10.1038/ng1357.Peer-Reviewed Original ResearchDeficiency of polycystin‐2 reduces Ca2+ channel activity and cell proliferation in ADPKD lymphoblastoid cells
Aguiari G, Banzi M, Gessi S, Cai Y, Zeggio E, Manzati E, Piva R, Lambertini E, Ferrari L, Peters DJ, Lanza F, Harris PC, Borea PA, Somlo S, del Senno L. Deficiency of polycystin‐2 reduces Ca2+ channel activity and cell proliferation in ADPKD lymphoblastoid cells. The FASEB Journal 2004, 18: 884-886. PMID: 15001556, DOI: 10.1096/fj.03-0687fje.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SubstitutionB-LymphocytesCalciumCalcium SignalingCell DivisionCell Line, TransformedCodon, NonsenseEndoplasmic ReticulumGentamicinsHumansIon TransportKidneyMembrane ProteinsMutation, MissenseOrgan SpecificityPlatelet Activating FactorPoint MutationPolycystic Kidney, Autosomal DominantProteinsRNA, MessengerSuppression, GeneticTRPP Cation ChannelsConceptsPlatelet-activating factorAutosomal dominant polycystic kidney disease patientsPolycystic kidney disease patientsKidney disease patientsCell proliferationPolycystin-2B lymphoblastoid cellsDisease patientsADPKD patientsB-LCLIntracellular Ca2PKD2 mutationsPC2 levelsKidney epitheliumPatientsChannel activityLymphoblastoid cellsAminoglycoside antibioticsKidney cellsImportant regulatorHEK293 cellsPKD2 geneFunction activityCa2PKD genes
2003
Analysis of the Polycystins in Aortic Vascular Smooth Muscle Cells
Qian Q, Li M, Cai Y, Ward CJ, Somlo S, Harris PC, Torres VE. Analysis of the Polycystins in Aortic Vascular Smooth Muscle Cells. Journal Of The American Society Of Nephrology 2003, 14: 2280-2287. PMID: 12937304, DOI: 10.1097/01.asn.0000080185.38113.a3.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortaCell MembraneCells, CulturedCytoplasmGlycosylationMembrane ProteinsMiceMice, Inbred C57BLMuscle, Smooth, VascularMyocytes, Smooth MusclePolycystic Kidney, Autosomal DominantProteinsTRPP Cation ChannelsConceptsAutosomal dominant polycystic kidney diseaseVascular smooth muscle cellsSmooth muscle cellsAortic vascular smooth muscle cellsMuscle cellsSarcoplasmic reticulumCause of deathDominant polycystic kidney diseasePolycystic kidney diseasePolycystin-2Polycystin-1Kidney diseaseVascular phenotypeImmuno-gold electron microscopyADPKD proteinsTriton-X extractionPresent studyVivo interactionDense plaquesCell surface biotinylationCell surfacePlasma membranePolycystinsCellsSurface localization
2002
Altered expression pattern of polycystin-2 in acute and chronic renal tubular diseases.
Obermüller N, Cai Y, Kränzlin B, Thomson RB, Gretz N, Kriz W, Somlo S, Witzgall R. Altered expression pattern of polycystin-2 in acute and chronic renal tubular diseases. Journal Of The American Society Of Nephrology 2002, 13: 1855-64. PMID: 12089381, DOI: 10.1097/01.asn.0000018402.33620.c7.Peer-Reviewed Original ResearchConceptsPolycystic kidney diseaseAutosomal dominant polycystic kidney diseaseKidney diseaseRenal failureDistal tubulesProximal tubulesIschemic acute renal failureCyst formationAcute renal failureAutosomal recessive polycystic kidney diseaseChronic renal failureRenal tubular diseaseCyst-lining cellsBasal compartmentPolycystin-2Renal injuryAcute injuryTubular diseaseKidney tissueAltered expression patternsPronounced upregulationNative kidney tissueS3 segmentDiseaseInjuryPolycystin-2 is an intracellular calcium release channel
Koulen P, Cai Y, Geng L, Maeda Y, Nishimura S, Witzgall R, Ehrlich BE, Somlo S. Polycystin-2 is an intracellular calcium release channel. Nature Cell Biology 2002, 4: 191-197. PMID: 11854751, DOI: 10.1038/ncb754.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCalcium ChannelsCalcium SignalingEndoplasmic ReticulumHumansIn Vitro TechniquesKidneyLLC-PK1 CellsMembrane PotentialsMembrane ProteinsMiceMice, Inbred C57BLMutationMutation, MissensePolycystic Kidney, Autosomal DominantRecombinant ProteinsSequence DeletionSignal TransductionSwineTRPP Cation ChannelsConceptsAutosomal dominant polycystic kidney diseaseIntracellular calcium release channelsPolycystic kidney diseaseCalcium release channelKidney diseaseTransient receptor potential channelsIntracellular calcium releaseDominant polycystic kidney diseaseRelease channelCalcium release signalsPolycystin-2 functionsType 2 autosomal dominant polycystic kidney diseaseCalcium releasePolycystin-2Single-channel studiesEpithelial cellsPotential channelsDiseaseMissense mutationsRelease signalsCarboxy-terminal truncationDisease-causing missense mutations
2000
Cloning and Characterization of the Murine Pkd2 Promoter
Park J, Li L, Cai Y, Hayashi T, Dong F, Maeda Y, Rubin C, Somlo S, Wu G. Cloning and Characterization of the Murine Pkd2 Promoter. Genomics 2000, 66: 305-312. PMID: 10873385, DOI: 10.1006/geno.2000.6197.Peer-Reviewed Original ResearchAnimalsBase SequenceCell LineCloning, MolecularCodon, InitiatorExonsGene Expression RegulationHumansIntronsMembrane ProteinsMiceMutagenesis, Site-DirectedPolycystic Kidney, Autosomal DominantPromoter Regions, GeneticSequence DeletionSequence Homology, Nucleic AcidTranscription, GeneticTransfectionTRPP Cation Channels
1999
Aberrant splicing in the PKD2 gene as a cause of polycystic kidney disease.
Reynolds DM, Hayashi T, Cai Y, Veldhuisen B, Watnick TJ, Lens XM, Mochizuki T, Qian F, Maeda Y, Li L, Fossdal R, Coto E, Wu G, Breuning MH, Germino GG, Peters DJ, Somlo S. Aberrant splicing in the PKD2 gene as a cause of polycystic kidney disease. Journal Of The American Society Of Nephrology 1999, 10: 2342-51. PMID: 10541293, DOI: 10.1681/asn.v10112342.Peer-Reviewed Original ResearchMeSH KeywordsHumansMembrane ProteinsMutationPolycystic Kidney, Autosomal DominantPolymorphism, GeneticReverse Transcriptase Polymerase Chain ReactionRNA SplicingTRPP Cation ChannelsConceptsPolycystin-2Mutant polycystin-2Future functional studiesNovel intragenic polymorphismsFrame splice variantsMissense variantsSingle base substitution mutationsPolycystin-2 proteinCryptic splice siteAutosomal dominant polycystic kidney diseaseBase substitution mutationsTransmembrane spansSingle base substitutionPolycystic kidney diseaseSplicing signalsSubunit functionAberrant splicingLymphoblast RNAMutant chromosomesSplice siteSubstitution mutationsPKD2 geneThird mutationBase substitutionsSplice variantsIdentification and Characterization of Polycystin-2, thePKD2 Gene Product*
Cai Y, Maeda Y, Cedzich A, Torres V, Wu G, Hayashi T, Mochizuki T, Park J, Witzgall R, Somlo S. Identification and Characterization of Polycystin-2, thePKD2 Gene Product*. Journal Of Biological Chemistry 1999, 274: 28557-28565. PMID: 10497221, DOI: 10.1074/jbc.274.40.28557.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceBase SequenceDNA PrimersFluorescent Antibody Technique, IndirectGlycosylationHumansMembrane ProteinsMolecular Sequence DataPolycystic Kidney, Autosomal DominantTRPP Cation ChannelsConceptsEndoplasmic reticulum localizationPolycystin-2Gene productsPutative phosphorylation sitesProtein binding partnersProtein disulfide isomerasePKD2 gene productImmunofluorescent cell stainingIntegral membrane glycoproteinSubcellular fractionation studiesAutosomal dominant polycystic kidney diseaseEndo H resistanceGolgi proteinsPhosphorylation sitesSecond geneBinding partnerTruncation mutantsTranslation productsPlasma membraneHigh-mannose oligosaccharidesAcid regionEndoplasmic reticulumIntact cellsH resistanceMembrane glycoproteinsMutations in autosomal dominant polycystic kidney disease 2 gene: Reduced expression of PKD2 protein in lymphoblastoid cells
Aguiari G, Manzati E, Penolazzi L, Micheletti F, Augello G, De Vitali E, Cappelli G, Cai Y, Reynolds D, Somlo S, Piva R, del Senno L. Mutations in autosomal dominant polycystic kidney disease 2 gene: Reduced expression of PKD2 protein in lymphoblastoid cells. American Journal Of Kidney Diseases 1999, 33: 880-885. PMID: 10213643, DOI: 10.1016/s0272-6386(99)70420-8.Peer-Reviewed Original ResearchMeSH KeywordsAgedAllelesFemaleHumansMaleMembrane ProteinsMiddle AgedMutationPedigreePolycystic Kidney, Autosomal DominantRestriction MappingReverse Transcriptase Polymerase Chain ReactionTRPP Cation ChannelsConceptsPolycystic kidney disease 2 (PKD2) geneMembrane-spanning domainsIntegral membrane proteinsLymphoblastoid cellsFirst extracellular loopAutosomal dominant polycystic kidney diseasePKD2 proteinMembrane proteinsRestriction enzyme analysisCommon genetic diseaseLymphoblastoid cell linesProtein productsMutant allelesExtracellular loopWestern blot analysisPKD2 genePolymerase chain reactionGenetic diseasesNormal proteinAmino acidsMessenger RNA levelsNonsense mutationFrameshift mutationGenesProtein
1998
Identification ofPKD2L,a HumanPKD2-Related Gene: Tissue-Specific Expression and Mapping to Chromosome 10q25
Wu G, Hayashi T, Park J, Dixit M, Reynolds D, Li L, Maeda Y, Cai Y, Coca-Prados M, Somlo S. Identification ofPKD2L,a HumanPKD2-Related Gene: Tissue-Specific Expression and Mapping to Chromosome 10q25. Genomics 1998, 54: 564-568. PMID: 9878261, DOI: 10.1006/geno.1998.5618.Peer-Reviewed Original ResearchAmino Acid SequenceBlotting, NorthernCalcium ChannelsChromosomes, Human, Pair 10Cloning, MolecularExpressed Sequence TagsGene Expression RegulationGenetic MarkersHumansLiverLiver DiseasesMembrane GlycoproteinsMembrane ProteinsMolecular Sequence DataOrgan SpecificityPhosphoproteinsPolycystic Kidney, Autosomal DominantPolymorphism, GeneticReceptors, Cell SurfaceRetinaSequence Homology, Amino AcidTissue DistributionTRPP Cation ChannelsSomatic Inactivation of Pkd2 Results in Polycystic Kidney Disease
Wu G, D'Agati V, Cai Y, Markowitz G, Park J, Reynolds D, Maeda Y, Le T, Hou H, Kucherlapati R, Edelmann W, Somlo S. Somatic Inactivation of Pkd2 Results in Polycystic Kidney Disease. Cell 1998, 93: 177-188. PMID: 9568711, DOI: 10.1016/s0092-8674(00)81570-6.Peer-Reviewed Original ResearchConceptsCellular recessive mechanismIntragenic homologous recombinationExon 1True null alleleMutant exon 1Somatic inactivationPkd2 resultsRenal cyst formationPKD2 proteinPolycystic kidney diseaseHomologous recombinationNull allelesHuman phenotypesPKD2 expressionUnstable alleleSomatic lossPKD2Autosomal dominant polycystic kidney diseaseDominant polycystic kidney diseaseMutationsGermline mutationsRecessive mechanismAllelesInactivationCyst formation
1997
Characterization of the Exon Structure of the Polycystic Kidney Disease 2 Gene (PKD2)
Hayashi T, Mochizuki T, Reynolds D, Wu G, Cai Y, Somlo S. Characterization of the Exon Structure of the Polycystic Kidney Disease 2 Gene (PKD2). Genomics 1997, 44: 131-136. PMID: 9286709, DOI: 10.1006/geno.1997.4851.Peer-Reviewed Original ResearchMeSH KeywordsCloning, MolecularDNA Mutational AnalysisDNA PrimersExonsHumansIntronsMembrane ProteinsMolecular Sequence DataPolycystic Kidney, Autosomal DominantRestriction MappingRNA SplicingSequence Analysis, DNATRPP Cation ChannelsConceptsAG/GT rulePolycystic kidney disease 2 (PKD2) geneExon-intron structureIntegral membrane proteinsAutosomal dominant polycystic kidney diseaseTranslation start siteExon structurePositional cloningMembrane proteinsStart siteGenomic DNASplice acceptorPKD2 geneGenesExon 1Oligonucleotide primersHeteroduplex analysisPKD2Dominant polycystic kidney diseasePolycystic kidney diseaseMutation analysisCalcium channelsCloningSecond formExonsPKD1 interacts with PKD2 through a probable coiled-coil domain
Qian F, Germino F, Cai Y, Zhang X, Somlo S, Germino G. PKD1 interacts with PKD2 through a probable coiled-coil domain. Nature Genetics 1997, 16: 179-183. PMID: 9171830, DOI: 10.1038/ng0697-179.Peer-Reviewed Original ResearchMeSH KeywordsHumansMembrane ProteinsMolecular Sequence DataPolycystic Kidney, Autosomal DominantProtein BindingProtein ConformationProteinsTRPP Cation ChannelsConceptsCoiled-coil domainC-terminusPKD1 gene productAutosomal dominant polycystic kidney diseaseSite-specific mutagenesisLarge cystic kidneysGene productsHomotypic interactionsTubular morphogenesisStructural basisHeterotypic interactionsPKD2TerminusRecent discoveryPathogenic mutationsDominant polycystic kidney diseasePKD1Cystic kidneysPolycystic kidney diseaseCommon pathwayAffected individualsMorphogenesisPolycystinsMutagenesisGenes