2024
Endothelial γ-protocadherins inhibit KLF2 and KLF4 to promote atherosclerosis
Joshi D, Coon B, Chakraborty R, Deng H, Yang Z, Babar M, Fernandez-Tussy P, Meredith E, Attanasio J, Joshi N, Traylor J, Orr A, Fernandez-Hernando C, Libreros S, Schwartz M. Endothelial γ-protocadherins inhibit KLF2 and KLF4 to promote atherosclerosis. Nature Cardiovascular Research 2024, 3: 1035-1048. PMID: 39232138, PMCID: PMC11399086, DOI: 10.1038/s44161-024-00522-z.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAtherosclerosisCadherin Related ProteinsCadherinsDisease Models, AnimalEndothelial CellsHuman Umbilical Vein Endothelial CellsHumansKruppel-Like Factor 4Kruppel-Like Transcription FactorsMaleMiceMice, Inbred C57BLMice, KnockoutPlaque, AtheroscleroticReceptors, NotchSignal TransductionConceptsAtherosclerotic cardiovascular diseaseIntracellular domainNotch intracellular domainTranscription factor KLF2Mechanisms of vascular inflammationAnti-inflammatory programVascular endothelial cellsHost defenseCleavage resultsAntibody blockadeGenetic deletionVascular inflammationViral infectionImmune systemEndothelial cellsCardiovascular diseasePromote atherosclerosisBlood flowKLF2KLF4Suppressive signalsEndotheliumMechanistic studiesCellular stiffness sensing through talin 1 in tissue mechanical homeostasis
Chanduri M, Kumar A, Weiss D, Emuna N, Barsukov I, Shi M, Tanaka K, Wang X, Datye A, Kanyo J, Collin F, Lam T, Schwarz U, Bai S, Nottoli T, Goult B, Humphrey J, Schwartz M. Cellular stiffness sensing through talin 1 in tissue mechanical homeostasis. Science Advances 2024, 10: eadi6286. PMID: 39167642, PMCID: PMC11338229, DOI: 10.1126/sciadv.adi6286.Peer-Reviewed Original ResearchConceptsTissue mechanical homeostasisStiffness sensingExtracellular matrixTalin-1Mechanical homeostasisExtracellular matrix mechanicsIncreased cell spreadingCell spreadingTalinMutationsCellular sensingFibrillar collagenReduced axial stiffnessTissue mechanical propertiesMechanical propertiesAxial stiffnessCompliant substratesHomeostasisRupture pressureArp2/3ARPC5LStiffnessHomeostasis hypothesisResident cellsTissue stiffness
2023
SMAD4 maintains the fluid shear stress set point to protect against arterial-venous malformations
Banerjee K, Lin Y, Gahn J, Cordero J, Gupta P, Mohamed I, Graupera M, Dobreva G, Schwartz M, Ola R. SMAD4 maintains the fluid shear stress set point to protect against arterial-venous malformations. Journal Of Clinical Investigation 2023, 133: e168352. PMID: 37490341, PMCID: PMC10503796, DOI: 10.1172/jci168352.Peer-Reviewed Original ResearchConceptsActivin-like kinase 1Fluid shear stressSMAD family member 4Arterial identityCyclin-dependent kinase inhibitors Cdkn2aVascular network formsEndothelial cellsVascular stabilitySensitivity of ECsBMP signalsPI3K/AktFamily member 4Downstream effectorsProtein 9Kinase 1Vascular developmentBone morphogenic protein 9Mechanism of synergyMorphological responsesSMAD4 deletionEC proliferationMember 4FN (Fibronectin)-Integrin α5 Signaling Promotes Thoracic Aortic Aneurysm in a Mouse Model of Marfan Syndrome
Chen M, Cavinato C, Hansen J, Tanaka K, Ren P, Hassab A, Li D, Youshao E, Tellides G, Iyengar R, Humphrey J, Schwartz M. FN (Fibronectin)-Integrin α5 Signaling Promotes Thoracic Aortic Aneurysm in a Mouse Model of Marfan Syndrome. Arteriosclerosis Thrombosis And Vascular Biology 2023, 43: e132-e150. PMID: 36994727, PMCID: PMC10133209, DOI: 10.1161/atvbaha.123.319120.Peer-Reviewed Original ResearchConceptsContractile gene expressionSmooth muscle cellsGene expressionMgR miceWild-type smooth muscle cellsMarfan miceAortic aneurysmMouse modelMarfan syndromeMouse aortic smooth muscle cellsPathogenesis of TAACytoplasmic domainVascular smooth muscle cellsThoracic aortic aneurysmAortic smooth muscle cellsCultured smooth muscle cellsNF-kB activationNF-kB inhibitionMolecular mechanismsIntegrin α2ECM remodelingElastic fiber integrityPhenotypic modulationMarfan's aneurysmsMgR/
2022
High Fluid Shear Stress Inhibits Cytokine‐Driven Smad2/3 Activation in Vascular Endothelial Cells
Deng H, Schwartz MA. High Fluid Shear Stress Inhibits Cytokine‐Driven Smad2/3 Activation in Vascular Endothelial Cells. Journal Of The American Heart Association 2022, 11: e025337. PMID: 35861829, PMCID: PMC9707828, DOI: 10.1161/jaha.121.025337.Peer-Reviewed Original ResearchConceptsInflammatory cytokinesSmad2/3 activationEndothelial cellsNuclear translocationInflammatory cytokine treatmentGrowth factor betaVascular endothelial cellsQuantitative polymerase chain reactionSmad2/3 nuclear translocationTarget gene expressionBackground AtherosclerosisInflammatory mediatorsInflammatory pathwaysPolymerase chain reactionResult of inhibitionCytokine treatmentInhibits CytokineFactor betaMesenchymal transitionHigh fluid shear stressCytokinesEndMTGene expressionLaminar fluid shear stressFluid shear stressFibronectin-Integrin α5 Signaling in Vascular Complications of Type 1 Diabetes.
Chen M, Hu R, Cavinato C, Zhuang ZW, Zhang J, Yun S, Fernandez Tussy P, Singh A, Murtada SI, Tanaka K, Liu M, Fernández-Hernando C, Humphrey JD, Schwartz MA. Fibronectin-Integrin α5 Signaling in Vascular Complications of Type 1 Diabetes. Diabetes 2022, 71: 2020-2033. PMID: 35771994, PMCID: PMC9450851, DOI: 10.2337/db21-0958.Peer-Reviewed Original ResearchConceptsVascular complicationsInjection of streptozotocinBlood flow recoveryHigh-fat dietType 1 diabetesInflammatory cell invasionIntegrin α5T1D miceVascular basement membraneVascular diseaseCarotid arteryHindlimb ischemiaMetalloproteinase expressionMain receptorType 1Plaque sizeBeneficial effectsEndothelial cellsMajor causeCell invasionExtracellular matrix proteinsHyperlipidemiaComplicationsBasement membraneT1DmTOR inhibition prevents angiotensin II–induced aortic rupture and pseudoaneurysm but promotes dissection in Apoe-deficient mice
He C, Jiang B, Wang M, Ren P, Murtada SI, Caulk AW, Li G, Qin L, Assi R, Lovoulos CJ, Schwartz MA, Humphrey JD, Tellides G. mTOR inhibition prevents angiotensin II–induced aortic rupture and pseudoaneurysm but promotes dissection in Apoe-deficient mice. JCI Insight 2022, 7: e155815. PMID: 35132962, PMCID: PMC8855820, DOI: 10.1172/jci.insight.155815.Peer-Reviewed Original ResearchConceptsApoE-deficient miceAngiotensin IIVascular wall cellsAortic tearAortic ruptureMTOR inhibitionSmooth muscle cell hypertrophyMatricellular proteinWall cellsSuprarenal abdominal aortaMuscle cell hypertrophyExtracellular matrix accumulationInhibition of mTORRole of mTORSubadventitial hematomaFree ruptureAortic dissectionAortic diseaseAortic aneurysmSignificant dissectionAbdominal aortaHemorrhagic lesionsExtensive dissectionMetalloproteinase expressionCell hypertrophy
2021
MEKK3–TGFβ crosstalk regulates inward arterial remodeling
Deng H, Xu Y, Hu X, Zhuang ZW, Chang Y, Wang Y, Ntokou A, Schwartz MA, Su B, Simons M. MEKK3–TGFβ crosstalk regulates inward arterial remodeling. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2112625118. PMID: 34911761, PMCID: PMC8713777, DOI: 10.1073/pnas.2112625118.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsGene DeletionGene Expression RegulationGenotypeHindlimbHuman Umbilical Vein Endothelial CellsHumansHypertension, PulmonaryIschemiaMAP Kinase Kinase Kinase 1MAP Kinase Kinase Kinase 3MiceReceptors, Transforming Growth Factor betaSelective Estrogen Receptor ModulatorsSignal TransductionTamoxifenTransforming Growth Factor betaVascular RemodelingConceptsArterial remodelingSuch common diseasesEndothelial-specific deletionActivation of TGFβArtery diseaseHyperlipidemic miceSpontaneous hypertensionInward remodelingAccelerated progressionArterial diameterVascular remodelingPathogenic importanceAdult miceKnockout miceVascular circuitPathologic conditionsCommon diseaseMAPK ERK1/2MiceRemodelingHypertensionAtherosclerosisControl of proliferationDiseaseProgressionActivation of Smad2/3 signaling by low fluid shear stress mediates artery inward remodeling
Deng H, Min E, Baeyens N, Coon BG, Hu R, Zhuang ZW, Chen M, Huang B, Afolabi T, Zarkada G, Acheampong A, McEntee K, Eichmann A, Liu F, Su B, Simons M, Schwartz MA. Activation of Smad2/3 signaling by low fluid shear stress mediates artery inward remodeling. Proceedings Of The National Academy Of Sciences Of The United States Of America 2021, 118: e2105339118. PMID: 34504019, PMCID: PMC8449390, DOI: 10.1073/pnas.2105339118.Peer-Reviewed Original ResearchConceptsLow fluid shear stressFluid shear stressNuclear translocationSmad linker regionTransmembrane protein Neuropilin-1Target gene expressionCyclin-dependent kinasesBone morphogenetic proteinEC-specific deletionSmad2/3 nuclear translocationNuclear localizationHigh fluid shear stressLinker regionMorphogenetic proteinsGene expressionRegulatory mechanismsActivation of Smad2/3Receptor ALK5Smad2/3 phosphorylationTranslocationCell sensingEndothelial cell (EC) sensingPhosphorylationALK5Smad2/3Fibronectin‐Mediated Inflammatory Signaling Through Integrin α5 in Vascular Remodeling
Budatha M, Zhang J, Schwartz MA. Fibronectin‐Mediated Inflammatory Signaling Through Integrin α5 in Vascular Remodeling. Journal Of The American Heart Association 2021, 10: e021160. PMID: 34472370, PMCID: PMC8649308, DOI: 10.1161/jaha.121.021160.Peer-Reviewed Original ResearchConceptsTransverse aortic constrictionPathological vascular remodelingVascular remodelingCarotid ligation modelPartial carotid ligation modelAortic constrictionInflammatory activationEndothelial cellsLigation modelArtery wall hypertrophyTransverse aortic constriction (TAC) modelHigh-fat dietIntegrin α5Aortic constriction modelWild-type miceBasement membranePartial carotid ligationVascular endothelial cellsProvisional matrix proteinsAcute atherosclerosisHyperlipidemic ApoEInflammatory markersLigation surgeryWall hypertrophyAcute modelDefective Flow-Migration Coupling Causes Arteriovenous Malformations in Hereditary Hemorrhagic Telangiectasia
Park H, Furtado J, Poulet M, Chung M, Yun S, Lee S, Sessa WC, Franco CA, Schwartz MA, Eichmann A. Defective Flow-Migration Coupling Causes Arteriovenous Malformations in Hereditary Hemorrhagic Telangiectasia. Circulation 2021, 144: 805-822. PMID: 34182767, PMCID: PMC8429266, DOI: 10.1161/circulationaha.120.053047.Peer-Reviewed Original ResearchConceptsActivin receptor-like kinase 1Hereditary hemorrhagic telangiectasiaHemorrhagic telangiectasiaVascular malformationsArteriovenous malformationsBlood flowGrowth factor receptor 2Endothelial growth factor receptor 2Vascular endothelial growth factor receptor 2Factor receptor 2Receptor-like kinase 1New potential targetsYAP/TAZ nuclear translocationDeficient miceTransmembrane serine-threonine kinase receptorsDevastating disorderAlk1 deletionReceptor 2Pharmacologic inhibitionCre linesPostnatal retinaMalformationsSerine-threonine kinase receptorsEndothelial cell migrationNuclear translocationDevelopmental origins of mechanical homeostasis in the aorta
Murtada S, Kawamura Y, Li G, Schwartz MA, Tellides G, Humphrey JD. Developmental origins of mechanical homeostasis in the aorta. Developmental Dynamics 2021, 250: 629-639. PMID: 33341996, PMCID: PMC8089041, DOI: 10.1002/dvdy.283.Peer-Reviewed Original ResearchConceptsPostnatal days P2Intramural cellsSmooth muscle contractilityLate prenatal periodBlood pressureDays P2Muscle contractilityAortic structureMurine aortaPrenatal periodEndothelial cellsAortaPathological conditionsAortic developmentDeposition of matrixDevelopmental originsMatrix depositionHomeostasisHomeostatic stateCellsIntramural stressPressure-induced mechanical stressFlow-induced shear stressMechanical loadingContractility
2020
Actin flow-dependent and -independent force transmission through integrins
Driscoll TP, Ahn SJ, Huang B, Kumar A, Schwartz MA. Actin flow-dependent and -independent force transmission through integrins. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 32413-32422. PMID: 33262280, PMCID: PMC7768777, DOI: 10.1073/pnas.2010292117.Peer-Reviewed Original ResearchConceptsActin binding siteProtein interactionsDistinct protein interactionsDynamic protein interactionsIntegrin-dependent adhesionBinding sitesSubstrate stiffnessActin flowActin filamentsStiff substratesExtracellular matrixTalinVinculinIntegrinsReciprocal exchangeClutchesForce transmissionAdhesionFlow-independent mechanismsLarge adhesionABS3Cell edgeABS2SitesInteractionIntegrin-mediated adhesions in regulation of cellular senescence
Shin EY, Park JH, You ST, Lee CS, Won SY, Park JJ, Kim HB, Shim J, Soung NK, Lee OJ, Schwartz MA, Kim EG. Integrin-mediated adhesions in regulation of cellular senescence. Science Advances 2020, 6: eaay3909. PMID: 32494696, PMCID: PMC7202880, DOI: 10.1126/sciadv.aay3909.Peer-Reviewed Original ResearchConceptsClathrin-mediated endocytosisCellular senescenceG protein-coupled receptor kinasesProtein-coupled receptor kinasesElevated reactive oxygen species (ROS) productionIntegrin-mediated adhesionIntegrin endocytosisAmphiphysin 1Exchange factorReactive oxygen species productionReceptor kinaseOxygen species productionMolecular mechanismsCalpain cleavageSenescenceCell adhesionDirect competitionHuman fibroblastsGIT levelsSpecies productionΒPixNew therapeutic directionIntegrinsEndocytosisCentral role
2019
Integrin α5β1 regulates PP2A complex assembly through PDE4D in atherosclerosis
Yun S, Hu R, Schwaemmle ME, Scherer AN, Zhuang Z, Koleske AJ, Pallas DC, Schwartz MA. Integrin α5β1 regulates PP2A complex assembly through PDE4D in atherosclerosis. Journal Of Clinical Investigation 2019, 129: 4863-4874. PMID: 31408443, PMCID: PMC6819111, DOI: 10.1172/jci127692.Peer-Reviewed Original ResearchConceptsPP2A regulatory subunit B55αTranscription factor YAPActive PDEComplex assemblyAdapter rolePDE4D5B55αIntegrin α5EC phenotypeCell functionInflammatory signalingAthero-prone regionsActivationComplexesPP2AInflammatory activationWidespread consequencesDephosphorylationProteomicsVascular remodelingPlaque sizeAtherosclerotic plaque sizeSignalingYAPRegulatesEndothelial TGF-β signalling drives vascular inflammation and atherosclerosis
Chen PY, Qin L, Li G, Wang Z, Dahlman JE, Malagon-Lopez J, Gujja S, Cilfone N, Kauffman K, Sun L, Sun H, Zhang X, Aryal B, Canfran-Duque A, Liu R, Kusters P, Sehgal A, Jiao Y, Anderson D, Gulcher J, Fernandez-Hernando C, Lutgens E, Schwartz M, Pober J, Chittenden T, Tellides G, Simons M. Endothelial TGF-β signalling drives vascular inflammation and atherosclerosis. Nature Metabolism 2019, 1: 912-926. PMID: 31572976, PMCID: PMC6767930, DOI: 10.1038/s42255-019-0102-3.Peer-Reviewed Original ResearchConceptsTGF-β signalingVascular inflammationDisease progressionPlaque growthProgressive vascular diseaseVessel wall inflammationChronic inflammatory responseSpecific therapeutic interventionsAtherosclerotic plaque growthHyperlipidemic micePlaque inflammationWall inflammationProinflammatory effectsVascular diseaseInflammatory responseVascular permeabilityAtherosclerotic plaquesAbnormal shear stressTherapeutic interventionsInflammationEndothelial TGFΒ signalingVessel wallAtherosclerosisLipid retentionMechanosensation of cyclical force by PIEZO1 is essential for innate immunity
Solis AG, Bielecki P, Steach HR, Sharma L, Harman CCD, Yun S, de Zoete MR, Warnock JN, To SDF, York AG, Mack M, Schwartz MA, Dela Cruz CS, Palm NW, Jackson R, Flavell RA. Mechanosensation of cyclical force by PIEZO1 is essential for innate immunity. Nature 2019, 573: 69-74. PMID: 31435009, PMCID: PMC6939392, DOI: 10.1038/s41586-019-1485-8.Peer-Reviewed Original ResearchConceptsInnate immune cellsImmune cellsInflammatory responseInnate immune systemCyclical hydrostatic pressurePulmonary inflammationImmune responseImmune systemInnate immunityBacterial infectionsIon channel Piezo1InflammationPhysiological fluctuationsImmunityPhysiological roleLocal microenvironmentCellsPiezo1Direct recognitionResponseAutoinflammationLungInfectionMiceFilamin A mediates isotropic distribution of applied force across the actin network
Kumar A, Shutova MS, Tanaka K, Iwamoto DV, Calderwood DA, Svitkina TM, Schwartz MA. Filamin A mediates isotropic distribution of applied force across the actin network. Journal Of Cell Biology 2019, 218: 2481-2491. PMID: 31315944, PMCID: PMC6683746, DOI: 10.1083/jcb.201901086.Peer-Reviewed Original ResearchConceptsTalin tension sensorStress fibersActin networkFilamin ACortical actin networkCortical actin filamentsIntegrin-mediated adhesionActin cytoskeletonFocal adhesionsCortical actinFLNA knockdownActin filamentsTalinKnockdownCell sensingDirection of stretchTension sensorPhysiology of muscleUniaxial stretchForce transmissionCytoskeletonStrainsStretchAdhesionReexpressionCaveolin-1 Regulates Atherogenesis by Attenuating Low-Density Lipoprotein Transcytosis and Vascular Inflammation Independently of Endothelial Nitric Oxide Synthase Activation
Ramírez CM, Zhang X, Bandyopadhyay C, Rotllan N, Sugiyama MG, Aryal B, Liu X, He S, Kraehling JR, Ulrich V, Lin CS, Velazquez H, Lasunción MA, Li G, Suárez Y, Tellides G, Swirski FK, Lee WL, Schwartz MA, Sessa WC, Fernández-Hernando C. Caveolin-1 Regulates Atherogenesis by Attenuating Low-Density Lipoprotein Transcytosis and Vascular Inflammation Independently of Endothelial Nitric Oxide Synthase Activation. Circulation 2019, 140: 225-239. PMID: 31154825, PMCID: PMC6778687, DOI: 10.1161/circulationaha.118.038571.Peer-Reviewed Original ResearchConceptsEndothelial nitric oxide synthaseDiet-induced atherosclerosisNO productionVascular inflammationENOS activationEndothelial nitric oxide synthase activationNitric oxide synthase activationAthero-protective functionsLipid metabolic factorsEndothelial cell inflammationNitric oxide synthaseWild-type miceMice Lacking ExpressionProduction of NOExtracellular matrix remodelingInflammatory primingHyperlipidemic miceInflammatory pathwaysAortic archCell inflammationOxide synthaseMetabolic factorsMouse modelAtherosclerosisInflammationMKL1-actin pathway restricts chromatin accessibility and prevents mature pluripotency activation
Hu X, Liu ZZ, Chen X, Schulz VP, Kumar A, Hartman AA, Weinstein J, Johnston JF, Rodriguez EC, Eastman AE, Cheng J, Min L, Zhong M, Carroll C, Gallagher PG, Lu J, Schwartz M, King MC, Krause DS, Guo S. MKL1-actin pathway restricts chromatin accessibility and prevents mature pluripotency activation. Nature Communications 2019, 10: 1695. PMID: 30979898, PMCID: PMC6461646, DOI: 10.1038/s41467-019-09636-6.Peer-Reviewed Original ResearchConceptsCell fate reprogrammingChromatin accessibilityActin cytoskeletonSomatic cell reprogrammingPluripotency transcription factorsGlobal chromatin accessibilityGenomic accessibilityCytoskeleton (LINC) complexCell reprogrammingCytoskeletal genesTranscription factorsReprogrammingPluripotencyChromatinCytoskeletonMKL1Unappreciated aspectPathwayNuclear volumeNucleoskeletonSUN2CellsActivationGenesExpression