2022
Association of renalase with clinical outcomes in hospitalized patients with COVID-19
Safdar B, Wang M, Guo X, Cha C, Chun HJ, Deng Y, Dziura J, El-Khoury JM, Gorelick F, Ko AI, Lee AI, Safirstein R, Simonov M, Zhou B, Desir GV. Association of renalase with clinical outcomes in hospitalized patients with COVID-19. PLOS ONE 2022, 17: e0264178. PMID: 35259186, PMCID: PMC8903289, DOI: 10.1371/journal.pone.0264178.Peer-Reviewed Original ResearchConceptsCOVID-19 patientsRenalase levelsIntensive care unit admissionHospitalized COVID-19 patientsMean age 64 yearsCOVID-19Cox proportional hazards modelCare unit admissionPrimary composite outcomeRetrospective cohort studyUse of vasopressorsSevere COVID-19IL-6 levelsAge 64 yearsRisk of deathCOVID-19 subjectsInitial disease severityProportional hazards modelCOVID-19 diseasePlasma renalaseUnit admissionICU admissionCohort studyComposite outcomeCytokine levels
2021
Renalase is a novel tissue and serological biomarker in pancreatic ductal adenocarcinoma
Gao Y, Wang M, Guo X, Hu J, Chen TM, Finn S, Lacy J, Kunstman JW, H. C, Bellin MD, Robert ME, Desir GV, Gorelick FS. Renalase is a novel tissue and serological biomarker in pancreatic ductal adenocarcinoma. PLOS ONE 2021, 16: e0250539. PMID: 34587190, PMCID: PMC8480607, DOI: 10.1371/journal.pone.0250539.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overBiomarkers, TumorCarcinoma, Pancreatic DuctalCase-Control StudiesFemaleGene Expression Regulation, NeoplasticHumansMaleMiddle AgedMonoamine OxidaseNeoplasm GradingPancreatic NeoplasmsPrognosisProspective StudiesRetrospective StudiesSurvival AnalysisUp-RegulationYoung AdultConceptsPlasma renalase levelsBorderline resectable PDACRenalase levelsPDAC precursor lesionsOverall survivalPDAC tissuesTumor characteristicsResectable PDACChronic pancreatitisPrecursor lesionsNormal pancreasPancreatic ductal adenocarcinoma growthAdvanced tumor characteristicsVaried clinical stagesWorse tumor characteristicsNode-positive diseasePancreatic ductal adenocarcinomaNormal pancreatic headSpindle-shaped cellsPlasma renalaseRenalase expressionUnderwent resectionAbdominal traumaPancreatic headPositive disease
2019
Elevated renalase levels in patients with acute coronary microvascular dysfunction – A possible biomarker for ischemia
Safdar B, Guo X, Johnson C, D'Onofrio G, Dziura J, Sinusas AJ, Testani J, Rao V, Desir G. Elevated renalase levels in patients with acute coronary microvascular dysfunction – A possible biomarker for ischemia. International Journal Of Cardiology 2019, 279: 155-161. PMID: 30630613, PMCID: PMC6482834, DOI: 10.1016/j.ijcard.2018.12.061.Peer-Reviewed Original ResearchConceptsCoronary microvascular dysfunctionFramingham risk scorePET/CTChest painInflammatory markersMicrovascular dysfunctionEmergency departmentRisk scoreRb-82 PET/CTElevated renalase levelsAcute chest painCoronary artery diseaseC-reactive proteinVascular endothelial growth factorAnti-inflammatory proteinTumor necrosis factorEndothelial growth factorAngina historyCMD diagnosisRenalase levelsHypertensive crisisED presentationsHemodynamic instabilityArtery diseaseHeart failure
2016
Renalase Expression by Melanoma and Tumor-Associated Macrophages Promotes Tumor Growth through a STAT3-Mediated Mechanism
Hollander L, Guo X, Velazquez H, Chang J, Safirstein R, Kluger H, Cha C, Desir G. Renalase Expression by Melanoma and Tumor-Associated Macrophages Promotes Tumor Growth through a STAT3-Mediated Mechanism. Cancer Research 2016, 76: 3884-3894. PMID: 27197188, PMCID: PMC5031238, DOI: 10.1158/0008-5472.can-15-1524.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisBiomarkers, TumorBlotting, WesternCase-Control StudiesCell CycleCell ProliferationFemaleFollow-Up StudiesGene Expression Regulation, NeoplasticHumansImmunoenzyme TechniquesMacrophagesMaleMelanomaMiceMice, Inbred C57BLMice, NudeMonoamine OxidaseNeoplasm StagingP38 Mitogen-Activated Protein KinasesPrognosisProto-Oncogene Proteins c-aktSignal TransductionSTAT3 Transcription FactorSurvival RateTumor Cells, CulturedXenograft Model Antitumor AssaysConceptsTumor-associated macrophagesDisease-specific survivalManagement of melanomaPotential therapeutic implicationsCell cycle inhibitor p21Melanoma cell growthPI3K/AktMelanoma cell survivalCell growth arrestPathogenic rolePrimary melanomaToxic injuryMurine xenograftsTherapeutic implicationsTumor growthClinical specimensRenalaseBax activationTumor microenvironmentTumor cellsInhibitor p21Growth arrestSurvival factorElevated expressionMAPK pathwayInhibition of renalase expression and signaling has antitumor activity in pancreatic cancer
Guo X, Hollander L, MacPherson D, Wang L, Velazquez H, Chang J, Safirstein R, Cha C, Gorelick F, Desir GV. Inhibition of renalase expression and signaling has antitumor activity in pancreatic cancer. Scientific Reports 2016, 6: 22996. PMID: 26972355, PMCID: PMC4789641, DOI: 10.1038/srep22996.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAged, 80 and overAnimalsAntibodiesApoptosisCarcinoma, Pancreatic DuctalCell Cycle CheckpointsCell Line, TumorFemaleGene Expression Regulation, NeoplasticHumansImmunohistochemistryKaplan-Meier EstimateMaleMice, NudeMiddle AgedMonoamine OxidasePancreatic NeoplasmsPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReverse Transcriptase Polymerase Chain ReactionRNA InterferenceSignal TransductionXenograft Model Antitumor AssaysConceptsRenalase expressionPancreatic cancerPancreatic ductal adenocarcinoma growthCohort of patientsPancreatic cancer tissuesPancreatic ductal adenocarcinomaPancreatic ductal adenocarcinoma cellsXenograft mouse modelAttractive therapeutic targetDuctal adenocarcinoma cellsTumor cell apoptosisOverall survivalPathogenic roleCell cycle arrestDuctal adenocarcinomaPrognostic makerTumor massMouse modelTherapeutic targetCellular injuryCancer tissuesRenalaseCancerAdenocarcinoma cellsGrowth factor
2015
Serum Renalase Levels Correlate with Disease Activity in Lupus Nephritis
Qi C, Wang L, Zhang M, Shao X, Chang X, Fan Z, Cao Q, Mou S, Wang Q, Yan Y, Desir G, Ni Z. Serum Renalase Levels Correlate with Disease Activity in Lupus Nephritis. PLOS ONE 2015, 10: e0139627. PMID: 26431044, PMCID: PMC4592194, DOI: 10.1371/journal.pone.0139627.Peer-Reviewed Original ResearchConceptsSerum renalase levelsActive lupus nephritisLupus nephritisDisease activityProliferative lupus nephritisRenalase levelsLN patientsSystemic lupus erythematosusStandard therapyDisease progressionHealthy controlsActive LN patientsInactive lupus nephritisProliferative LN patientsSLEDAI-2KSLE disease activityUrine protein excretionKidneys of patientsCross-sectional studyExpression of renalaseCytokine-like proteinLupus erythematosusSerious complicationsProtein excretionSerum renalase
2014
Renalase regulates peripheral and central dopaminergic activities
Quelhas-Santos J, Serrão MP, Soares-Silva I, Fernandes-Cerqueira C, Simões-Silva L, Pinho MJ, Remião F, Sampaio-Maia B, Desir GV, Pestana M. Renalase regulates peripheral and central dopaminergic activities. American Journal Of Physiology. Renal Physiology 2014, 308: f84-f91. PMID: 25411385, PMCID: PMC4338928, DOI: 10.1152/ajprenal.00274.2014.Peer-Reviewed Original ResearchConceptsKO miceUrinary excretionPlasma levelsDopaminergic activityIncreased Plasma LevelsPeripheral dopaminergic activityUrine catecholamine levelsRenal dopaminergic systemCentral dopaminergic activityL-type amino acid transporterWild-type miceAmino acid decarboxylase activityKnockout mouse modelRenalase deficiencyCatecholamine levelsDA outputUrinary dopamineAADC activityDopaminergic systemRenal cortexMouse modelDOPA ratioVivo administrationOverexpression of LAT1Amino acid transportersRenalase Prevents AKI Independent of Amine Oxidase Activity
Wang L, Velazquez H, Moeckel G, Chang J, Ham A, Lee HT, Safirstein R, Desir GV. Renalase Prevents AKI Independent of Amine Oxidase Activity. Journal Of The American Society Of Nephrology 2014, 25: 1226-1235. PMID: 24511138, PMCID: PMC4033373, DOI: 10.1681/asn.2013060665.Peer-Reviewed Original ResearchConceptsIschemic injuryCatecholamine levelsRecombinant renalaseAmine oxidase activityHuman proximal tubular cellsCisplatin-induced AKITreatment of AKIWild-type miceHK-2 cellsProximal tubular cellsOxidase activityKidney injuryRenal injuryC-Jun N-terminal kinaseExtracellular signal-regulated kinaseP38 mitogen-activated protein kinaseToxic injuryRenalase proteinTubular cellsSignal-regulated kinaseIntracellular signaling cascadesRenalaseInjuryMitogen-activated protein kinaseN-terminal kinase
2013
Renalase Protects against Ischemic AKI
Lee HT, Kim JY, Kim M, Wang P, Tang L, Baroni S, D’Agati V, Desir GV. Renalase Protects against Ischemic AKI. Journal Of The American Society Of Nephrology 2013, 24: 445-455. PMID: 23393318, PMCID: PMC3582209, DOI: 10.1681/asn.2012090943.Peer-Reviewed Original ResearchMeSH KeywordsAcute Kidney InjuryAdrenergic alpha-AntagonistsAnimalsApoptosisGene ExpressionHumansInflammation MediatorsIschemiaKidney Tubular Necrosis, AcuteMacrophagesMaleMiceMice, Inbred C57BLMice, KnockoutMonoamine OxidaseNeutrophil InfiltrationNorepinephrinePhentolamineRecombinant ProteinsReperfusion InjuryRNA, MessengerConceptsRenal ischemia-reperfusion injuryIschemia-reperfusion injuryIschemic AKIWild-type miceReperfusion injuryCatecholamine levelsRenal tubular inflammationTreatment of AKIRenal ischemia reperfusionSham-operated micePlasma catecholamine levelsRenal tubular necrosisRecombinant human renalasePlasma renalaseTubular inflammationTubular necrosisIschemia reperfusionNE levelsPlasma catecholaminesMyocardial necrosisInflammatory responseProximal tubulesAKIRenalaseMice
2011
Increased renal dopamine and acute renal adaptation to a high-phosphate diet
Weinman EJ, Biswas R, Steplock D, Wang P, Lau YS, Desir GV, Shenolikar S. Increased renal dopamine and acute renal adaptation to a high-phosphate diet. American Journal Of Physiology. Renal Physiology 2011, 300: f1123-f1129. PMID: 21325500, PMCID: PMC3094044, DOI: 10.1152/ajprenal.00744.2010.Peer-Reviewed Original ResearchMeSH KeywordsAdaptation, PhysiologicalAnalysis of VarianceAnimalsAromatic Amino Acid Decarboxylase InhibitorsCarbidopaCyclic AMP-Dependent Protein KinasesDopa DecarboxylaseDopamineEnzyme InhibitorsKidneyMaleMiceMice, Inbred C57BLMonoamine OxidasePhosphorus, DietaryProtein Kinase CRatsRats, Sprague-DawleySignal TransductionTime FactorsUp-RegulationConceptsHigh-phosphate dietLow-phosphate dietPhosphate excretionDopamine contentRenal dopamine receptorsRenal phosphate excretionRenal tubular reabsorptionTreatment of ratsMarkers of activationRole of dopamineRenal dopamineUrinary excretionTubular reabsorptionRenal adaptationTwo- to threefold increaseAcute increaseMonoamine oxidase ADopamine receptorsDopamine synthesisImpaired adaptation
2010
Renalase deficiency aggravates ischemic myocardial damage
Wu Y, Xu J, Velazquez H, Wang P, Li G, Liu D, Sampaio-Maia B, Quelhas-Santos J, Russell K, Russell R, Flavell RA, Pestana M, Giordano F, Desir GV. Renalase deficiency aggravates ischemic myocardial damage. Kidney International 2010, 79: 853-860. PMID: 21178975, DOI: 10.1038/ki.2010.488.Peer-Reviewed Original ResearchConceptsChronic kidney diseaseWild-type miceRenalase deficiencyKnockout micePlasma blood urea nitrogenLevels of renalaseMild ventricular hypertrophyRenalase knockout mouseNormal systolic functionTraditional risk factorsPlasma catecholamine levelsIschemic myocardial damageBlood urea nitrogenCardiac complicationsCardiovascular complicationsSystolic functionVentricular hypertrophyCardioprotective effectsCatecholamine levelsKidney diseaseMyocardial damageMyocardial necrosisRecombinant renalaseRisk factorsCardiac ischemiaA Functional Polymorphism in Renalase (Glu37Asp) Is Associated with Cardiac Hypertrophy, Dysfunction, and Ischemia: Data from the Heart and Soul Study
Farzaneh-Far R, Desir GV, Na B, Schiller NB, Whooley MA. A Functional Polymorphism in Renalase (Glu37Asp) Is Associated with Cardiac Hypertrophy, Dysfunction, and Ischemia: Data from the Heart and Soul Study. PLOS ONE 2010, 5: e13496. PMID: 20975995, PMCID: PMC2958117, DOI: 10.1371/journal.pone.0013496.Peer-Reviewed Original ResearchConceptsPoor exercise capacityExercise capacityInducible ischemiaCardiac hypertrophyDiastolic dysfunctionSystolic dysfunctionStable coronary artery diseaseMissense polymorphismTreadmill exercise capacityCoronary artery diseaseSoul StudyVentricular dysfunctionArtery diseaseVentricular hypertrophyStress echocardiographyCommon missense polymorphismCC genotypeIschemiaTherapeutic implicationsCG genotypeCardiac structureDysfunctionHypertrophyRenalaseLogistic regressionRenalase, a novel soluble FAD-dependent protein, is synthesized in the brain and peripheral nerves
Hennebry SC, Eikelis N, Socratous F, Desir G, Lambert G, Schlaich M. Renalase, a novel soluble FAD-dependent protein, is synthesized in the brain and peripheral nerves. Molecular Psychiatry 2010, 15: 234-236. PMID: 20168325, DOI: 10.1038/mp.2009.74.Peer-Reviewed Original Research
2009
A Case of Extreme Hemodynamic Lability and Hypocalcemia
Knauf F, Desir GV, Perazella MA. A Case of Extreme Hemodynamic Lability and Hypocalcemia. The American Journal Of The Medical Sciences 2009, 338: 241-244. PMID: 19590425, DOI: 10.1097/maj.0b013e3181a66af1.Peer-Reviewed Original Research
2007
Regulation of insulin secretion and GLUT4 trafficking by the calcium sensor synaptotagmin VII
Li Y, Wang P, Xu J, Gorelick F, Yamazaki H, Andrews N, Desir GV. Regulation of insulin secretion and GLUT4 trafficking by the calcium sensor synaptotagmin VII. Biochemical And Biophysical Research Communications 2007, 362: 658-664. PMID: 17720139, PMCID: PMC2194288, DOI: 10.1016/j.bbrc.2007.08.023.Peer-Reviewed Original ResearchConceptsGLUT4 trafficSyt VIIPlasma membraneGLUT4 translocationConstitutive expressionSecretory granule exocytosisSkeletal muscle cellsGLUT4 traffickingRegulated exocytosisVoltage-gated potassium channel Kv1.3Vesicular trafficSynaptotagmin VIIGLUT4 presentPotassium channel Kv1.3Calcium sensorIntracellular compartmentsDeletion resultsGlucose-stimulated insulin secretionChannel Kv1.3Granule exocytosisPancreatic beta cellsChannel activityInsulin secretionPancreatic islet cellsMuscle cells
2004
The voltage-gated potassium channel Kv1.3 regulates peripheral insulin sensitivity
Xu J, Wang P, Li Y, Li G, Kaczmarek LK, Wu Y, Koni PA, Flavell RA, Desir GV. The voltage-gated potassium channel Kv1.3 regulates peripheral insulin sensitivity. Proceedings Of The National Academy Of Sciences Of The United States Of America 2004, 101: 3112-3117. PMID: 14981264, PMCID: PMC365752, DOI: 10.1073/pnas.0308450100.Peer-Reviewed Original ResearchMeSH KeywordsAdipose TissueAnimalsBiological TransportFastingGlucoseInsulinInterleukin-6JNK Mitogen-Activated Protein KinasesKineticsKv1.3 Potassium ChannelMaleMiceMice, Inbred C57BLMice, KnockoutMice, ObeseMitogen-Activated Protein KinasesModels, BiologicalMuscle, SkeletalPotassium ChannelsPotassium Channels, Voltage-GatedTumor Necrosis Factor-alphaConceptsKv1.3-/- micePeripheral glucose homeostasisPeripheral insulin sensitivityPlasma membraneGene inactivationInsulin sensitivityAmount of GLUT4Skeletal muscleTerminal kinase (JNK) activityGlucose homeostasisAdipose tissueLower blood insulin levelsVoltage-gated potassium channelsInsulin-stimulated glucose uptakeVoltage-gated potassium channel Kv1.3Tumor necrosis factor productionExperimental autoimmune encephalitisBlood insulin levelsHigh-fat dietPotassium channel Kv1.3Tumor necrosis factor secretionPeripheral T lymphocytesKinase activityNecrosis factor productionNumber of tissues
2002
Expression of KCNA10, a voltage-gated K channel, in glomerular endothelium and at the apical membrane of the renal proximal tubule.
Yao X, Tian S, Chan HY, Biemesderfer D, Desir GV. Expression of KCNA10, a voltage-gated K channel, in glomerular endothelium and at the apical membrane of the renal proximal tubule. Journal Of The American Society Of Nephrology 2002, 13: 2831-9. PMID: 12444201, DOI: 10.1097/01.asn.0000036866.37886.c5.Peer-Reviewed Original ResearchConceptsVascular smooth muscle cellsProximal tubular cellsSmooth muscle cellsApical membraneImportant cellular functionsSitu hybridization experimentsVascular toneVoltage-activated K channelsTubular cellsMuscle cellsImmunocytochemical studyCellular functionsHuman proximal tubular cellsRat proximal tubular cellsSubcellular localizationHybridization experimentsVoltage-gated K channelsK channelsNorthern blotRenal proximal tubulesCell membrane voltageVascular endothelial cellsKCNA10Cell membrane potentialVascular tissue
1991
Reconstitution and partial purification of an amiloride-sensitive, cation channel from rabbit kidney
Desir G. Reconstitution and partial purification of an amiloride-sensitive, cation channel from rabbit kidney. Biochimica Et Biophysica Acta 1991, 1067: 38-42. PMID: 1868102, DOI: 10.1016/0005-2736(91)90023-2.Peer-Reviewed Original ResearchConceptsBrush border membrane vesiclesCation channelsMembrane vesicle proteinsChannel activityAmiloride-sensitive cation channelVesicle proteinsBorder membrane vesiclesMembrane vesiclesRabbit brush border membrane vesiclesProteoliposomesNative brush border membranesBrush border membraneSensitive cation channelPotassium channelsProteinPartial purificationAcridine orangeRenal brush-border membrane vesiclesBorder membraneDiethylthiadicarbocyanine iodideReconstitutionRabbit kidneyHigh affinity binding of amiloride analogs at an internal site in renal microvillus membrane vesicles
Desir GV, Cragoe EJ, Aronson PS. High affinity binding of amiloride analogs at an internal site in renal microvillus membrane vesicles. Journal Of Biological Chemistry 1991, 266: 2267-2271. PMID: 1846621, DOI: 10.1016/s0021-9258(18)52238-9.Peer-Reviewed Original ResearchConceptsMembrane vesiclesMicrovillus membrane vesiclesRenal microvillus membrane vesiclesSimilar rank order potencyBinding sitesInternal sitesHigh-affinity inhibitorsMembrane localizationInternal binding siteAmiloride analoguesPlasma membraneRank order potencyHigh-affinity bindingAffinity inhibitorsHigh affinity-binding siteVesiclesBasolateral membrane vesiclesOrder potency
1986
Effect of hyperketonemia on renal ammonia excretion in man
Desir G, Bratusch-Marrain P, DeFronzo R. Effect of hyperketonemia on renal ammonia excretion in man. Metabolism 1986, 35: 736-743. PMID: 3736414, DOI: 10.1016/0026-0495(86)90241-6.Peer-Reviewed Original ResearchConceptsUrinary ammonia excretionVenous pHBlood pHBicarbonate concentrationEffects of hyperketonemiaBaseline bloodAbsence of changesContinuous infusionRenal ammonia excretionMetabolic acidosisBeta-OHBBody weightDay 4Mumol/ExcretionInfusionUrine samplesSimilar increaseUrineHuman subjectsAmmonia excretionNADH ratioSubjectsSodium lactateMinutes