2024
Heterogeneous gene expression during early arteriovenous fistula remodeling suggests that downregulation of metabolism predicts adaptive venous remodeling
Ohashi Y, Protack C, Aoyagi Y, Gonzalez L, Thaxton C, Zhang W, Kano M, Bai H, Yatsula B, Alves R, Hoshina K, Schneider E, Long X, Perry R, Dardik A. Heterogeneous gene expression during early arteriovenous fistula remodeling suggests that downregulation of metabolism predicts adaptive venous remodeling. Scientific Reports 2024, 14: 13287. PMID: 38858395, PMCID: PMC11164895, DOI: 10.1038/s41598-024-64075-8.Peer-Reviewed Original ResearchConceptsGene expression patternsArteriovenous fistula groupArteriovenous fistulaExpression patternsHeterogeneous gene expressionGene expression changesOutcomes of arteriovenous fistulaVenous remodelingArteriovenous fistula maturationPostoperative day 7Reduce patient morbidityRNA sequencingUpregulation of metabolismBioinformatics analysisGene expressionDownregulation of metabolismMetabolic pathwaysExpression changesGenesAVF maturationAVF remodelingFistula creationC57BL/6 miceClinical outcomesPatient morbidityDisturbed flow in the juxta-anastomotic area of an arteriovenous fistula correlates with endothelial loss, acute thrombus formation, and neointimal hyperplasia
Bai H, Varsanik M, Thaxton C, Ohashi Y, Gonzalez L, Zhang W, Aoyagi Y, Kano M, Yatsula B, Li Z, Pocivavsek L, Dardik A. Disturbed flow in the juxta-anastomotic area of an arteriovenous fistula correlates with endothelial loss, acute thrombus formation, and neointimal hyperplasia. AJP Heart And Circulatory Physiology 2024, 326: h1446-h1461. PMID: 38578237, PMCID: PMC11380968, DOI: 10.1152/ajpheart.00054.2024.Peer-Reviewed Original ResearchConceptsEndothelial cell lossOutflow veinChronic kidney diseaseJuxta-anastomotic areaMouse AVF modelNeointimal hyperplasiaThrombus formationAcute thrombus formationCell lossHuman AVF maturationGene OntologyAVF maturationAVF patencyEarly thrombus formationArteriovenous fistulaC57BL/6 miceClinical failureWistar ratsEndothelial lossKidney diseaseImmune responseEndothelial cellsHyperplasiaMiceAVF
2023
Sex hormones impact early maturation and immune response in the arteriovenous fistula mouse model
Satam K, Ohashi Y, Thaxton C, Gonzalez L, Setia O, Bai H, Aoyagi Y, Xie Y, Zhang W, Yatsula B, Martin K, Cai Y, Dardik A. Sex hormones impact early maturation and immune response in the arteriovenous fistula mouse model. AJP Heart And Circulatory Physiology 2023, 325: h77-h88. PMID: 37145957, PMCID: PMC10243550, DOI: 10.1152/ajpheart.00049.2023.Peer-Reviewed Original ResearchConceptsIntact female miceAVF maturationSex hormonesT cellsFemale miceArteriovenous fistulaMale miceMouse modelHigher IL-10Arteriovenous fistula creationImmune cell recruitmentSex-specific therapiesHormone receptor signalingSex differencesHuman AVF maturationAVF surgeryMale patientsClinical outcomesFemale patientsFistula maturationIL-10C57BL/6 miceInferior outcomesVenous adaptationFistula creation
2022
Endothelial Cell TGF-β (Transforming Growth Factor-Beta) Signaling Regulates Venous Adaptive Remodeling to Improve Arteriovenous Fistula Patency
Taniguchi R, Ohashi Y, Lee JS, Hu H, Gonzalez L, Zhang W, Langford J, Matsubara Y, Yatsula B, Tellides G, Fahmy TM, Hoshina K, Dardik A. Endothelial Cell TGF-β (Transforming Growth Factor-Beta) Signaling Regulates Venous Adaptive Remodeling to Improve Arteriovenous Fistula Patency. Arteriosclerosis Thrombosis And Vascular Biology 2022, 42: 868-883. PMID: 35510552, PMCID: PMC9233042, DOI: 10.1161/atvbaha.122.317676.Peer-Reviewed Original ResearchConceptsArteriovenous fistulaSMC proliferationAVF patencyCollagen densityMouse aortocaval fistula modelTGF-β receptor IArteriovenous fistula patencyAortocaval fistula modelInhibition of TGFPredetermined time pointsTGF-β inhibitionTGF-β signalingTGF-β receptorDisruption of TGFFistula patencyAVF failureWall thicknessVascular accessVenous remodelingSuccessful hemodialysisDoppler ultrasoundFistula modelReceptor IPatencyTGF
2021
PD-L1 (Programmed Death Ligand 1) Regulates T-Cell Differentiation to Control Adaptive Venous Remodeling
Matsubara Y, Gonzalez L, Kiwan G, Liu J, Langford J, Gao M, Gao X, Taniguchi R, Yatsula B, Furuyama T, Matsumoto T, Komori K, Mori M, Dardik A. PD-L1 (Programmed Death Ligand 1) Regulates T-Cell Differentiation to Control Adaptive Venous Remodeling. Arteriosclerosis Thrombosis And Vascular Biology 2021, 41: 2909-2922. PMID: 34670406, PMCID: PMC8664128, DOI: 10.1161/atvbaha.121.316380.Peer-Reviewed Original ResearchConceptsPD-L1AVF maturationPD-L1 activityVenous remodelingT cellsL1 antibodyArteriovenous fistulaNude miceMouse aortocaval fistula modelEnd-stage renal diseaseT helper type 2 cellsT helper type 1 (Th1) cellsPrimary success rateSmooth muscle cell proliferationRegulatory T cellsT cell activityT-cell transferAortocaval fistula modelPreferred vascular accessVascular wall thickeningM1-type macrophagesM2-type macrophagesPotential therapeutic targetMuscle cell proliferationType 1 cellsInhibition of T-Cells by Cyclosporine A Reduces Macrophage Accumulation to Regulate Venous Adaptive Remodeling and Increase Arteriovenous Fistula Maturation
Matsubara Y, Kiwan G, Liu J, Gonzalez L, Langford J, Gao M, Gao X, Taniguchi R, Yatsula B, Furuyama T, Matsumoto T, Komori K, Dardik A. Inhibition of T-Cells by Cyclosporine A Reduces Macrophage Accumulation to Regulate Venous Adaptive Remodeling and Increase Arteriovenous Fistula Maturation. Arteriosclerosis Thrombosis And Vascular Biology 2021, 41: e160-e174. PMID: 33472405, PMCID: PMC7904667, DOI: 10.1161/atvbaha.120.315875.Peer-Reviewed Original ResearchConceptsVascular wall thickeningT helper type 1 (Th1) cellsSuccessful AVF maturationAVF maturationRegulatory T cellsMacrophage accumulationT cellsType 1 cellsArteriovenous fistulaVenous remodelingWall thickeningMouse aortocaval fistula modelT helper type 2T helper type 2 cellsAdaptive remodelingM2 macrophage accumulationPrimary success rateAortocaval fistula modelArteriovenous fistula maturationPreferred vascular accessAnti-inflammatory macrophagesT cell functionWild-type miceEffect of CsAType 2 cells
2020
Artery to vein configuration of arteriovenous fistula improves hemodynamics to increase maturation and patency
Bai H, Sadaghianloo N, Gorecka J, Liu S, Ono S, Ramachandra AB, Bonnet S, Mazure NM, Declemy S, Humphrey JD, Dardik A. Artery to vein configuration of arteriovenous fistula improves hemodynamics to increase maturation and patency. Science Translational Medicine 2020, 12 PMID: 32817365, PMCID: PMC7705473, DOI: 10.1126/scitranslmed.aax7613.Peer-Reviewed Original ResearchConceptsArteriovenous fistulaHemodialysis accessNeointimal hyperplasiaEndothelial nitric oxide synthaseDurable surgical optionUremic male ratsRadial-cephalic arteriovenous fistulaKruppel-like factor 2Nitric oxide synthasePeak systolic velocityLong-term patencyReintervention rateSecondary patencyImproved hemodynamicsFemale patientsReimplantation techniqueSurgical optionsSystolic velocityMale ratsOxide synthaseFistula modelPatencyHemodynamicsDifferent hemodynamicsFemale animalsTGFβ (Transforming Growth Factor-Beta)–Activated Kinase 1 Regulates Arteriovenous Fistula Maturation
Hu H, Lee SR, Bai H, Guo J, Hashimoto T, Isaji T, Guo X, Wang T, Wolf K, Liu S, Ono S, Yatsula B, Dardik A. TGFβ (Transforming Growth Factor-Beta)–Activated Kinase 1 Regulates Arteriovenous Fistula Maturation. Arteriosclerosis Thrombosis And Vascular Biology 2020, 40: e203-e213. PMID: 32460580, PMCID: PMC7316601, DOI: 10.1161/atvbaha.119.313848.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortaArteriovenous Shunt, SurgicalCells, CulturedCollagen Type IEndothelial CellsFibronectinsHumansJNK Mitogen-Activated Protein KinasesMaleMAP Kinase Kinase KinasesMechanotransduction, CellularMice, Inbred C57BLP38 Mitogen-Activated Protein KinasesPhosphorylationStress, MechanicalVascular PatencyVascular RemodelingVena Cava, InferiorConceptsArteriovenous fistulaAVF maturationNoncanonical TGFβSuccessful AVF maturationArteriovenous fistula maturationNovel therapeutic approachesTAK1 functionsFistula maturationHemodialysis accessDeposition of ECMLuminal diameterMouse endothelial cellsMaturation failureTherapeutic approachesLumen dilationControl veinsWall thickeningAVF modelOptimal conduitArterial magnitudesEndothelial cellsTAK1 phosphorylationCollagen 1Growth factorLaminar shear stressInduced pluripotent stem cell-derived smooth muscle cells increase angiogenesis and accelerate diabetic wound healing
Gorecka J, Gao X, Fereydooni A, Dash BC, Luo J, Lee SR, Taniguchi R, Hsia HC, Qyang Y, Dardik A. Induced pluripotent stem cell-derived smooth muscle cells increase angiogenesis and accelerate diabetic wound healing. Regenerative Medicine 2020, 15: 1277-1293. PMID: 32228292, PMCID: PMC7304438, DOI: 10.2217/rme-2019-0086.Peer-Reviewed Original ResearchConceptsSmooth muscle cellsMuscle cellsDiabetic wound healingWound healingPro-angiogenic cytokinesMurine AdiposeStem cellsType macrophagesCollagen scaffoldsCultured mediumM2-type macrophagesCellsNumber of totalNew candidatesAngiogenesisNude miceDiabetic woundsPromising new candidateScaffoldsHealingCytokinesExpressionSecreteWoundsAdipose
2018
Molecular identity of arteries, veins, and lymphatics
Wolf K, Hu H, Isaji T, Dardik A. Molecular identity of arteries, veins, and lymphatics. Journal Of Vascular Surgery 2018, 69: 253-262. PMID: 30154011, PMCID: PMC6309638, DOI: 10.1016/j.jvs.2018.06.195.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsMeSH KeywordsAnimalsArteriesBiomarkersCOUP Transcription Factor IIEphrin-B2Gene Expression Regulation, DevelopmentalGestational AgeHomeodomain ProteinsHumansIntracellular Signaling Peptides and ProteinsLymphangiogenesisLymphatic VesselsMembrane ProteinsNeovascularization, PhysiologicReceptor, EphB4Receptors, NotchSignal TransductionTumor Suppressor ProteinsVascular Endothelial Growth Factor Receptor-2Vascular Surgical ProceduresVeinsConceptsMolecular identityEphrin-B2 expressionVessel identityVascular identityMolecular determinantsVenous identityArterial-venous identityCritical molecular determinantsEph-B4Specific molecular markersEmbryonic developmentMolecular mechanismsMolecular markersArterial identityUndifferentiated cellsEphrin-B2Adult vesselsDifferent functionsPostsurgical environmentExpressionEndothelial cellsStructural differencesCellsNew therapeutic approachesLymphatic vessels
2003
Shear Stress and Cyclic Strain May Suppress Apoptosis in Endothelial Cells by Different Pathways
Haga M, Chen A, Gortler D, Dardik A, Sumpio B. Shear Stress and Cyclic Strain May Suppress Apoptosis in Endothelial Cells by Different Pathways. Endothelium 2003, 10: 149-157. PMID: 13129818, DOI: 10.1080/10623320390233463.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisBcl-Associated Death ProteinCarrier ProteinsCattleCells, CulturedCulture Media, Serum-FreeEndothelial CellsEnzyme InhibitorsHemodynamicsPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPhosphorylationProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktSignal TransductionStress, MechanicalTranscription, GeneticConceptsPhosphorylation of AktEndothelial cellsPI3K inhibitionInhibition of apoptosisK inhibitionHemodynamic forcesAortic endothelial cellsBovine aortic endothelial cellsEffect of SSArterial levelsIntimal hyperplasiaDownstream target BadNormal endotheliumMaximal stimulationAkt phosphorylationLaminar shear stressApoptosisDownstream phosphorylationAktInhibitionCell survivalEC growthSerum withdrawalAlternate pathwayPhosphorylation of Bad
1999
Neutralizing TGF-β1 antibody infusion in neonatal rat delays in vivo glomerular capillary formation 1 1 See Editorial by Abrahamson, p. 1597
Liu A, Dardik A, Ballermann B. Neutralizing TGF-β1 antibody infusion in neonatal rat delays in vivo glomerular capillary formation 1 1 See Editorial by Abrahamson, p. 1597. Kidney International 1999, 56: 1334-1348. PMID: 10504486, DOI: 10.1046/j.1523-1755.1999.00661.x.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornBinding, CompetitiveCapillariesCell DifferentiationEndothelial Growth FactorsEndothelium, VascularFemaleImmunoglobulin GInjections, Intra-ArterialIodine RadioisotopesKidney GlomerulusLymphokinesMicroinjectionsMicroscopy, ElectronNephronsNeutralization TestsPregnancyRatsRats, Sprague-DawleyTime FactorsTransforming Growth Factor betaVascular Endothelial Growth Factor AVascular Endothelial Growth FactorsVon Willebrand FactorChronic in vitro shear stress stimulates endothelial cell retention on prosthetic vascular grafts and reduces subsequent in vivo neointimal thickness
Dardik A, Liu A, Ballermann B. Chronic in vitro shear stress stimulates endothelial cell retention on prosthetic vascular grafts and reduces subsequent in vivo neointimal thickness. Journal Of Vascular Surgery 1999, 29: 157-167. PMID: 9882800, DOI: 10.1016/s0741-5214(99)70357-5.Peer-Reviewed Original ResearchMeSH KeywordsAdenoviridaeAnimalsBeta-GalactosidaseBlood Vessel ProsthesisCell AdhesionCells, CulturedEndothelium, VascularFemaleGenetic VectorsHemorheologyHemostasisIn Vitro TechniquesMicroscopy, Electron, ScanningPolyurethanesRatsRats, Inbred F344Stress, MechanicalThrombosisTransfectionTunica IntimaConceptsProsthetic vascular graftsNeointimal thicknessDyne/cm2 shear stressEndothelial cellsGraft thrombosisEndothelial cell monolayersEndothelial cell retentionHemostasis timeVascular graftsCell monolayersAlpha-smooth muscle actinFischer 344 rat aortaGraft patency rateReplication-deficient adenoviral vectorLuminal surfaceAortic interposition graftsImmediate graft thrombosisChronic shear stressCultured endothelial cellsGraft failureInterposition graftMacrophage infiltrationPatency ratesCell-seeded graftsRat aorta
1998
Shear stress and the endothelium.
Ballermann B, Dardik A, Eng E, Liu A. Shear stress and the endothelium. Kidney International Supplement 1998, 67: s100-8. PMID: 9736263, DOI: 10.1046/j.1523-1755.1998.06720.x.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsConceptsEndothelial nitric oxide synthaseChronic shear stressEndothelial cellsBlood flowGrowth factorWall distentionNitric oxide synthaseTranscription factor nuclear factorPlatelet-derived growth factorVascular endothelial cellsAcute shear stressInflammatory cytokinesMCP-1Oxide synthaseICAM-1Cyclooxygenase IIAcute releaseStructural remodelingTissue factorNitric oxideNuclear factorTransmural pressureC-fosVascular prosthesesEvidence of differentiation
1993
Protein secretion by the mouse blastocyst: Stimulatory effect on secretion into the blastocoel by transforming growth factor‐α
Dardik A, Doherty A, Schultz R. Protein secretion by the mouse blastocyst: Stimulatory effect on secretion into the blastocoel by transforming growth factor‐α. Molecular Reproduction And Development 1993, 34: 396-401. PMID: 8385965, DOI: 10.1002/mrd.1080340408.Peer-Reviewed Original ResearchConceptsTGF-alphaMouse preimplantation developmentGel electrophoretic analysisPreimplantation developmentApical mediumMouse blastocystsProtein secretionBlastocoelAdditional functionsElectrophoretic analysisProteinZona pellucidaStimulatory effectGrowth factorSecretionMarked stimulationPresent studyMarked differencesBlastocystsPellucida
1992
Colocalization of transforming growth factor-α and a functional epidermal growth factor receptor (EGFR) to the inner cell mass and preferential localization of the EGFR on the basolateral surface of the trophectoderm in the mouse blastocyst
Dardik A, Smith R, Schultz R. Colocalization of transforming growth factor-α and a functional epidermal growth factor receptor (EGFR) to the inner cell mass and preferential localization of the EGFR on the basolateral surface of the trophectoderm in the mouse blastocyst. Developmental Biology 1992, 154: 396-409. PMID: 1426645, DOI: 10.1016/0012-1606(92)90078-u.Peer-Reviewed Original ResearchConceptsEpidermal growth factor receptorFunctional epidermal growth factor receptorTGF-alphaAnti-EGFR antibodiesGrowth factor receptorParacrine roleBasolateral surfaceInner cell massCell massPotential autocrineMouse blastocystsGrowth factorFactor receptorImmunoelectron microscopy studiesReceptorsBlastocyst developmentTE cellsOvernight cultureEGF treatmentPolar trophectodermEGF receptorMouse preimplantation embryosBlastocystsAcid-insoluble materialEGFChanges in camp phosphodiesterase activity and cAMP concentration during mouse preimplantation development
Dardik A, Schultz R. Changes in camp phosphodiesterase activity and cAMP concentration during mouse preimplantation development. Molecular Reproduction And Development 1992, 32: 349-353. PMID: 1323307, DOI: 10.1002/mrd.1080320407.Peer-Reviewed Original ResearchConceptsTGF-alpha/EGFMid-blastocyst stageBlastocoel expansionBlastocyst stageMouse preimplantation developmentMouse preimplantation embryosTGF-alphaPreimplantation developmentCAMP concentrationCell shapePreimplantation embryosElevation of cAMPCell typesPhosphodiesterase activityEmbryo volumeIntracellular volumeEmbryosCAMP levelsEGF
1991
Protein Secretion by the Mouse Blastocyst: Differences in the Polypeptide Composition Secreted into the Blastocoel and Medium1
Dardik A, Schultz R. Protein Secretion by the Mouse Blastocyst: Differences in the Polypeptide Composition Secreted into the Blastocoel and Medium1. Biology Of Reproduction 1991, 45: 328-333. PMID: 1786298, DOI: 10.1095/biolreprod45.2.328.Peer-Reviewed Original ResearchConceptsInner cell mass developmentInner cell massMost polypeptidesMouse blastocystsProtein secretionTotal protein synthesisPolypeptide compositionProtein synthesisBlastocoelProtein microenvironmentProteinElectrophoretic profilesCell massMass developmentPotential functionRelative amountsTrophectodermPolypeptideRelative enrichmentBlastocystsMicroenvironmentEnrichment