2023
Hypomorphic PKD1 Alleles Impact Disease Variability in Autosomal Dominant Polycystic Kidney Disease
Gulati A, Dahl N, Hartung E, Clark S, Moudgil A, Goodwin J, Somlo S. Hypomorphic PKD1 Alleles Impact Disease Variability in Autosomal Dominant Polycystic Kidney Disease. Kidney360 2023, 4: 387-392. PMID: 36706243, PMCID: PMC10103195, DOI: 10.34067/kid.0000000000000064.Peer-Reviewed Original Research
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 ResearchConceptsPolycystin-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
2020
Cyclin-Dependent Kinase 1 Activity Is a Driver of Cyst Growth in Polycystic Kidney Disease
Zhang C, Balbo B, Ma M, Zhao J, Tian X, Kluger Y, Somlo S. Cyclin-Dependent Kinase 1 Activity Is a Driver of Cyst Growth in Polycystic Kidney Disease. Journal Of The American Society Of Nephrology 2020, 32: 41-51. PMID: 33046531, PMCID: PMC7894654, DOI: 10.1681/asn.2020040511.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisCatalytic DomainCDC2 Protein KinaseCell ProliferationCrosses, GeneticDNA ReplicationExome SequencingFemaleGene Expression ProfilingGene Expression RegulationMaleMiceMice, Inbred C57BLMice, KnockoutMutationPhenotypePolycystic Kidney, Autosomal DominantPyruvate Dehydrogenase Acetyl-Transferring KinaseRNA-SeqTranscription, GeneticTRPP Cation ChannelsConceptsAutosomal dominant polycystic kidney diseaseCyst cell proliferationPolycystic kidney diseaseKidney diseaseADPKD progressionCell proliferationModel of ADPKDCyst growthProgression of ADPKDDominant polycystic kidney diseaseDouble knockout miceCandidate pathwaysKidney functionCyst progressionMouse modelUnbiased transcriptional profilingProgressionCellular mechanismsKinase 1 activityCystic phenotypeSelective targetingKidneyConditional inactivationDouble knockoutProliferation
2019
ALG9 Mutation Carriers Develop Kidney and Liver Cysts
Besse W, Chang AR, Luo JZ, Triffo WJ, Moore BS, Gulati A, Hartzel DN, Mane S, Center R, Torres VE, Somlo S, Mirshahi T. ALG9 Mutation Carriers Develop Kidney and Liver Cysts. Journal Of The American Society Of Nephrology 2019, 30: 2091-2102. PMID: 31395617, PMCID: PMC6830805, DOI: 10.1681/asn.2019030298.Peer-Reviewed Original ResearchConceptsProteins polycystin-1Autosomal dominant polycystic kidney diseaseDisease genesRare loss-of-function variantsN-glycan precursorsNovel disease genesLoss-of-function variantsEndoplasmic reticulum lumenLoss-of-function mutationsMonogenic kidney diseaseWhole-exome sequencingGenotype-phenotype correlationProtein biogenesisProtein maturationReticulum lumenPolycystin-1Endoplasmic reticulumGene productsPopulation-based cohortCell-based assaysPhenotypic characterizationPolycystic phenotypeMutation carrier stateDefective glycosylationDominant polycystic kidney disease
2018
Monoallelic Mutations to DNAJB11 Cause Atypical Autosomal-Dominant Polycystic Kidney Disease
Gall E, Olson RJ, Besse W, Heyer CM, Gainullin VG, Smith JM, Audrézet MP, Hopp K, Porath B, Shi B, Baheti S, Senum SR, Arroyo J, Madsen CD, Férec C, Joly D, Jouret F, Fikri-Benbrahim O, Charasse C, Coulibaly JM, Yu AS, Khalili K, Pei Y, Somlo S, Le Meur Y, Torres VE, Group G, Group T, Disease T, Harris PC. Monoallelic Mutations to DNAJB11 Cause Atypical Autosomal-Dominant Polycystic Kidney Disease. American Journal Of Human Genetics 2018, 102: 832-844. PMID: 29706351, PMCID: PMC5986722, DOI: 10.1016/j.ajhg.2018.03.013.Peer-Reviewed Original ResearchConceptsWhole-exome sequencingEnd-stage renal diseaseAutosomal dominant polycystic kidney diseasePhenotypically similar familiesNext-generation sequencingDevelopment of kidney cystsCystic kidneysPolycystic kidney diseaseTargeted next-generation sequencingFrameshift changesInterstitial fibrosisKidney diseasePhenotypic hybridsMissense variantsMembrane proteinsTrafficking defectsADTKDEpisodes of goutLate-onset end-stage renal diseaseProgressive interstitial fibrosisAffected membersMultigenerational familiesCo-factorPhenotypic overlapPartial phenotypic overlapA noncoding variant in GANAB explains isolated polycystic liver disease (PCLD) in a large family
Besse W, Choi J, Ahram D, Mane S, Sanna‐Cherchi S, Torres V, Somlo S. A noncoding variant in GANAB explains isolated polycystic liver disease (PCLD) in a large family. Human Mutation 2018, 39: 378-382. PMID: 29243290, PMCID: PMC5805583, DOI: 10.1002/humu.23383.Peer-Reviewed Original ResearchConceptsLoss-of-function variantsSequence analysis pipelineWhole-exome sequencing analysisExome sequencing dataExome sequencing analysisBase pair deletionSkipping of exonIsolated polycystic liver diseaseNoncoding variantsLinkage analysisDisease genesSequence dataGene discoveryMinigene assayLinkage disequilibriumCoding regionSNP genotypingSequence analysisGenomic evaluationPolycystic liver diseaseSplice donorIdentified mutationsMutation detectionPair deletionGANAB
2017
Whole exome sequencing: a state-of-the-art approach for defining (and exploring!) genetic landscapes in pediatric nephrology
Gulati A, Somlo S. Whole exome sequencing: a state-of-the-art approach for defining (and exploring!) genetic landscapes in pediatric nephrology. Pediatric Nephrology 2017, 33: 745-761. PMID: 28660367, DOI: 10.1007/s00467-017-3698-0.Peer-Reviewed Original ResearchConceptsWhole-exome sequencingNew high-throughput sequencing techniquesHigh-throughput sequencing techniquesConventional genomic approachesNovel gene discoveryNext-generation sequencing technologiesNovel genetic findingsHuman reference genomeExome sequencingGenomic approachesGene discoveryReference genomeHuman genomeSequencing technologiesSequencing techniquesGenetic landscapeLinkage analysisGenomeBiological dataGenetic findingsSequencingPhenotypic misclassificationRecent studiesComprehensive genomic testingPowerful toolIsolated polycystic liver disease genes define effectors of polycystin-1 function
Besse W, Dong K, Choi J, Punia S, Fedeles SV, Choi M, Gallagher AR, Huang EB, Gulati A, Knight J, Mane S, Tahvanainen E, Tahvanainen P, Sanna-Cherchi S, Lifton RP, Watnick T, Pei YP, Torres VE, Somlo S. Isolated polycystic liver disease genes define effectors of polycystin-1 function. Journal Of Clinical Investigation 2017, 127: 1772-1785. PMID: 28375157, PMCID: PMC5409105, DOI: 10.1172/jci90129.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnimalsCalcium-Binding ProteinsCell Line, TransformedCystsEndoplasmic ReticulumFemaleGenome-Wide Association StudyGlucosidasesGlucosyltransferasesHeterozygoteHumansIntracellular Signaling Peptides and ProteinsLiver DiseasesMaleMembrane ProteinsMiceMolecular ChaperonesMutationRNA-Binding ProteinsSEC Translocation ChannelsTRPP Cation ChannelsConceptsPolycystin-1 functionPolycystin-1Protein biogenesis pathwaysGenome-wide basisPolycystic liver diseaseLoss-of-function mutationsWhole-exome sequencingHeterozygous loss-of-function mutationsBiogenesis pathwayLoss of functionAdditional genesDisease genesGene productsCell line modelsCandidate genesExome sequencingEndoplasmic reticulumCausative genesFunction mutationsGenesAutosomal dominant polycystic kidney diseaseDominant polycystic kidney diseaseSec63Defective maturationKidney cysts
2016
Deletion of ADP Ribosylation Factor-Like GTPase 13B Leads to Kidney Cysts
Li Y, Tian X, Ma M, Jerman S, Kong S, Somlo S, Sun Z. Deletion of ADP Ribosylation Factor-Like GTPase 13B Leads to Kidney Cysts. Journal Of The American Society Of Nephrology 2016, 27: 3628-3638. PMID: 27153923, PMCID: PMC5118478, DOI: 10.1681/asn.2015091004.Peer-Reviewed Original ResearchConceptsSevere patterning defectsMultiple model organismsSmall GTPase essentialDefective hedgehog signalingCystic kidneysNumber of phenotypesKidney cyst formationKidney cystsJoubert syndromeGTPase essentialZebrafish leadsPatterning defectsBiogenesis defectsModel organismsCilia biogenesisLoss of functionCyst progressionDefective ciliaHistone deacetylase inhibitorsHuman mutationsNull mutationHedgehog signalingHypomorphic natureRescue experimentsNeural tube
2015
Human Polycystin-2 Transgene Dose-Dependently Rescues ADPKD Phenotypes in Pkd2 Mutant Mice
Li A, Tian X, Zhang X, Huang S, Ma Y, Wu D, Moeckel G, Somlo S, Wu G. Human Polycystin-2 Transgene Dose-Dependently Rescues ADPKD Phenotypes in Pkd2 Mutant Mice. American Journal Of Pathology 2015, 185: 2843-2860. PMID: 26435415, PMCID: PMC4607765, DOI: 10.1016/j.ajpath.2015.06.014.Peer-Reviewed Original ResearchConceptsAutosomal dominant polycystic kidney diseaseMouse modelADPKD phenotypeSevere cystic phenotypeWild-type miceDose-dependent mannerPolycystic kidney diseaseForms of ADPKDKidney diseasePancreatic cystsEffective treatmentFunctional restorationMutant miceTransgene doseMiceCyst formationReduced proliferationEpithelial cellsCystic phenotypeKidneyLiverFurther ameliorationPC2 activityPhenotypeMolecular genetic mechanisms
2014
N-Glycosylation Determines the Abundance of the Transient Receptor Potential Channel TRPP2*
Hofherr A, Wagner C, Fedeles S, Somlo S, Köttgen M. N-Glycosylation Determines the Abundance of the Transient Receptor Potential Channel TRPP2*. Journal Of Biological Chemistry 2014, 289: 14854-14867. PMID: 24719335, PMCID: PMC4031537, DOI: 10.1074/jbc.m114.562264.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAsparagineBinding SitesBlotting, WesternCell LineCells, CulturedGlucosidasesGlycosylationHEK293 CellsHeLa CellsHumansIntracellular Signaling Peptides and ProteinsLysosomesMass SpectrometryMiceMice, KnockoutMicroscopy, FluorescenceMutationPolycystic Kidney, Autosomal DominantProtein Serine-Threonine KinasesProteolysisPyruvate Dehydrogenase Acetyl-Transferring KinaseConceptsGlucosidase IINon-catalytic β-subunitsProtein expressionFirst extracellular loopAutosomal dominant polycystic liver diseaseEfficient biogenesisGenetic interactionsMembrane proteinsBiochemical approachesN-glycosylationGenetic approachesTRPP2Glycosylation sitesBiological roleLysosomal degradationΒ-subunitChemical inhibitionBiogenesisExtracellular loopNonselective cation channelsIon channelsBiological importanceGlycosylationCation channelsProtein levels
2013
Loss of cilia suppresses cyst growth in genetic models of autosomal dominant polycystic kidney disease
Ma M, Tian X, Igarashi P, Pazour GJ, Somlo S. Loss of cilia suppresses cyst growth in genetic models of autosomal dominant polycystic kidney disease. Nature Genetics 2013, 45: 1004-1012. PMID: 23892607, PMCID: PMC3758452, DOI: 10.1038/ng.2715.Peer-Reviewed Original Research
2012
Polycystin-1 regulates amphiregulin expression through CREB and AP1 signalling: implications in ADPKD cell proliferation
Aguiari G, Bizzarri F, Bonon A, Mangolini A, Magri E, Pedriali M, Querzoli P, Somlo S, Harris PC, Catizone L, del Senno L. Polycystin-1 regulates amphiregulin expression through CREB and AP1 signalling: implications in ADPKD cell proliferation. Journal Of Molecular Medicine 2012, 90: 1267-1282. PMID: 22570239, PMCID: PMC4028691, DOI: 10.1007/s00109-012-0902-3.Peer-Reviewed Original ResearchMeSH KeywordsAmphiregulinAnimalsCell ProliferationCyclic AMPCyclic AMP Response Element-Binding ProteinEGF Family of ProteinsGene SilencingGlycoproteinsHEK293 CellsHumansIntercellular Signaling Peptides and ProteinsMiceMutagenesisMutationOligonucleotide Array Sequence AnalysisPhosphorylationPolycystic Kidney, Autosomal DominantPromoter Regions, GeneticSignal TransductionTranscription Factor AP-1TRPP Cation ChannelsConceptsActivator protein-1Cystic cellsCell proliferationFull-length PC1ADPKD cell proliferationCell growthEpidermal growth factor-like peptidesGrowth factor-like peptidesAutosomal dominant polycystic kidney diseaseRenal cyst developmentAbnormal cell proliferationChromatin immunoprecipitationPolycystin-1Key activatorEGFR activityMicroarray analysisAmphiregulin genesNew potential therapeutic targetsLuciferase assayFactor-like peptidesProtein 1Potential therapeutic targetCell linesAmphiregulin expressionCyst development