2021
Profibrotic mechanisms of DPP8 and DPP9 highly expressed in the proximal renal tubule epithelial cells
Zhang Y, Li K, Li Y, Zhao W, Wang L, Chen Z, Ma X, Yao T, Wang J, Dong W, Li X, Tian X, Fu R. Profibrotic mechanisms of DPP8 and DPP9 highly expressed in the proximal renal tubule epithelial cells. Pharmacological Research 2021, 169: 105630. PMID: 33932609, DOI: 10.1016/j.phrs.2021.105630.Peer-Reviewed Original ResearchMeSH KeywordsAdamantaneAnimalsBlotting, WesternCase-Control StudiesCell LineDipeptidasesDipeptidesDipeptidyl-Peptidases and Tripeptidyl-PeptidasesEpithelial-Mesenchymal TransitionFibrosisFluorescent Antibody TechniqueHumansKidney Tubules, ProximalMaleMiceMice, Inbred C57BLReal-Time Polymerase Chain ReactionRenal Insufficiency, ChronicConceptsTubulointerstitial fibrosisTubule epithelial cellsCKD patientsUUO miceHK-2 cell modelChronic kidney disease patientsTGF-β1/Smad signalingUnilateral ureteral obstruction animal modelEpithelial cellsKidney disease patientsHealthy control subjectsKidney biopsy specimensProximal tubule epithelial cellsRenal tubule epithelial cellsRenal proximal tubule epithelial cellsHK-2 cellsPotential therapeutic targetRenal inflammationTubulointerstitial injuryRenal functionUUO groupKidney functionProfibrotic mechanismsControl subjectsDisease patients
2018
Acid Stimulation of the Citrate Transporter NaDC-1 Requires Pyk2 and ERK1/2 Signaling Pathways
Zacchia M, Tian X, Zona E, Alpern RJ, Preisig PA. Acid Stimulation of the Citrate Transporter NaDC-1 Requires Pyk2 and ERK1/2 Signaling Pathways. Journal Of The American Society Of Nephrology 2018, 29: 1720-1730. PMID: 29678998, PMCID: PMC6054333, DOI: 10.1681/asn.2017121268.Peer-Reviewed Original ResearchMeSH KeywordsAcidsAmmonium ChlorideAnimalsCells, CulturedCitric AcidCSK Tyrosine-Protein KinaseDicarboxylic Acid TransportersEndothelin-1Epithelial CellsFocal Adhesion Kinase 2Kidney Tubules, ProximalMAP Kinase Signaling SystemMiceMice, KnockoutMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3OpossumsOrganic Anion Transporters, Sodium-DependentPhosphorylationProto-Oncogene Proteins c-rafReceptor, Endothelin BRibosomal Protein S6 Kinases, 90-kDaSrc-Family KinasesTransfectionConceptsET-1/ETEndothelin-1Proximal tubulesCultured opossum kidney cellsAcid stimulationInhibition of Pyk2ET-1 stimulationRenal proximal tubulesNaDC-1Opossum kidney cellsCl loadingC-SrcPhosphorylation of Raf1Urine citratePyk2 knockdownEnd pointAcid loadApical NaERK1/2 pathwayStimulationMiceKidney cellsKidneyPyk2ERK1/2
2016
Kidney Tubular Ablation of Ocrl/Inpp5b Phenocopies Lowe Syndrome Tubulopathy
Inoue K, Balkin DM, Liu L, Nandez R, Wu Y, Tian X, Wang T, Nussbaum R, De Camilli P, Ishibe S. Kidney Tubular Ablation of Ocrl/Inpp5b Phenocopies Lowe Syndrome Tubulopathy. Journal Of The American Society Of Nephrology 2016, 28: 1399-1407. PMID: 27895154, PMCID: PMC5407733, DOI: 10.1681/asn.2016080913.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsHumansKidney Tubules, ProximalMiceMice, KnockoutMutationOculocerebrorenal SyndromePhenotypePhosphoric Monoester HydrolasesConceptsEarly embryonic lethalityTransporter 5Dent's diseaseIndependent endocytosisEmbryonic lethalityRedundant functionsType 2 inositolHuman phenotypesProximal tubule endocytosisOculocerebrorenal syndromeGenetic ablationCellular levelGermline knockoutLowe syndromeEndocytosisMouse backgroundMice resultsMutationsInositolLow molecular weight proteinuriaINPP5BParalogsProximal tubule functionDramatic effectOCRL