2023
Intracellular tension sensor reveals mechanical anisotropy of the actin cytoskeleton
Amiri S, Muresan C, Shang X, Huet-Calderwood C, Schwartz M, Calderwood D, Murrell M. Intracellular tension sensor reveals mechanical anisotropy of the actin cytoskeleton. Nature Communications 2023, 14: 8011. PMID: 38049429, PMCID: PMC10695988, DOI: 10.1038/s41467-023-43612-5.Peer-Reviewed Original ResearchConceptsF-actin architectureStress fibersCortical actinActin cytoskeletonMolecular tension sensorsF-actin stress fibersF-actin cytoskeletonFilamentous actin cytoskeletonMechanical forcesTension sensorCell divisionCytoskeletonCell migrationExtracellular matrixMyosin inhibitionActinDirection of stretchCellsCell axisUniaxial stretchStretchFRET
2019
MKL1-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
2016
Talin tension sensor reveals novel features of focal adhesion force transmission and mechanosensitivity
Kumar A, Ouyang M, Van den Dries K, McGhee EJ, Tanaka K, Anderson MD, Groisman A, Goult BT, Anderson KI, Schwartz MA. Talin tension sensor reveals novel features of focal adhesion force transmission and mechanosensitivity. Journal Of Cell Biology 2016, 213: 371-383. PMID: 27161398, PMCID: PMC4862330, DOI: 10.1083/jcb.201510012.Peer-Reviewed Original ResearchConceptsTalin tension sensorFar C-terminusIntegrin-dependent adhesionPeripheral adhesionsTension sensorFocal adhesionsCellular mechanosensingMechanosensitive structuresTalin functionC-terminusDistinct functionsRod domainStiffness sensingTalinVinculinActin filamentsABS3Site 2Soft substratesAdhesionForce transmissionMechanosensingNew lightTerminus
2014
Tension-Sensitive Actin Assembly Supports Contractility at the Epithelial Zonula Adherens
Leerberg JM, Gomez GA, Verma S, Moussa EJ, Wu SK, Priya R, Hoffman BD, Grashoff C, Schwartz MA, Yap AS. Tension-Sensitive Actin Assembly Supports Contractility at the Epithelial Zonula Adherens. Current Biology 2014, 24: 1689-1699. PMID: 25065757, PMCID: PMC5103636, DOI: 10.1016/j.cub.2014.06.028.Peer-Reviewed Original ResearchConceptsMena/VASPActin assemblyEpithelial zonula adherensZonula adherensMyosin II activationActin filament turnoverCadherin junctionsActomyosin apparatusVASP proteinsActin scaffoldFilament turnoverActin filamentsJunctional integrityVinculinPhysical interactionTissue integrityActomyosin systemEpithelial cellsAdherensAssemblyContractile apparatusRegulationVASPEffective contractilityUnderlying mechanism
2013
Endothelial Cell Sensing of Flow Direction
Wang C, Baker BM, Chen CS, Schwartz MA. Endothelial Cell Sensing of Flow Direction. Arteriosclerosis Thrombosis And Vascular Biology 2013, 33: 2130-2136. PMID: 23814115, PMCID: PMC3812824, DOI: 10.1161/atvbaha.113.301826.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonAnimalsAtherosclerosisCattleCell Culture TechniquesCell ShapeCells, CulturedEndothelial CellsEnzyme ActivationHemodynamicsInflammationMechanotransduction, CellularNF-kappa BNitric OxideNitric Oxide Synthase Type IIIOscillometryPhosphorylationProto-Oncogene Proteins c-aktReactive Oxygen SpeciesRegional Blood FlowStress, MechanicalTime FactorsConceptsEndothelial cellsEndothelial nitric oxide synthaseEndothelial nitric oxide synthase pathwayNitric oxide synthase pathwayNitric oxide synthaseOxide synthase pathwayAtherosclerosis-prone regionsInflammatory activationInflammatory effectsOxide synthaseEndothelial cell responsesCell responsesReactive oxygen productionDisturbed flowNitric oxideNuclear factorSimilar effectsActivationCellsSynthase pathwayInability of cellsIntegrins in mechanotransduction
Ross TD, Coon BG, Yun S, Baeyens N, Tanaka K, Ouyang M, Schwartz MA. Integrins in mechanotransduction. Current Opinion In Cell Biology 2013, 25: 613-618. PMID: 23797029, PMCID: PMC3757118, DOI: 10.1016/j.ceb.2013.05.006.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonAnimalsCell AdhesionExtracellular MatrixHumansIntegrinsMechanotransduction, CellularConceptsMolecular mechanismsIntegrin-mediated adhesionImportant regulatory eventActin cytoskeletonRegulatory eventsExtracellular matrixNormal physiologyCell functionMajor insightsCentral roleCellsRecent advancesCytoskeletonEffect of forceMechanotransductionAdhesionIntegrinsPathwayPhysiologyMechanismRecent workN-cadherin regulates spatially polarized signals through distinct p120ctn and β-catenin-dependent signalling pathways
Ouyang M, Lu S, Kim T, Chen CE, Seong J, Leckband DE, Wang F, Reynolds AB, Schwartz MA, Wang Y. N-cadherin regulates spatially polarized signals through distinct p120ctn and β-catenin-dependent signalling pathways. Nature Communications 2013, 4: 1589. PMID: 23481397, PMCID: PMC3602931, DOI: 10.1038/ncomms2560.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonAnimalsBeta CateninCadherinsCateninsCell PolarityChickensCHO CellsCricetinaeDelta CateninEmbryo, MammalianFibroblastsFluorescent DyesIntegrinsIntercellular JunctionsMiceModels, BiologicalPhosphatidylinositol 3-KinasesProtein BindingRac GTP-Binding ProteinsRatsRecombinant Fusion ProteinsRNA, Small InterferingSignal TransductionConceptsMyosin II light chainRac activityActin filamentsSmall GTPase RacΒ-catenin-dependent signaling pathwaysHigher phosphoinositidesCellular functionsGTPase RacDistinct effectorsMolecular signalsSignaling pathwaysMolecular activityLight chainNeighbouring cellsN-cadherinPhosphoinositideIntercellular junctionsIntegrin α5RacCellsComplexesFilamentsP120ctnSpatial distributionEffectors
2012
A novel in vitro flow system for changing flow direction on endothelial cells
Wang C, Lu H, Schwartz MA. A novel in vitro flow system for changing flow direction on endothelial cells. Journal Of Biomechanics 2012, 45: 1212-1218. PMID: 22386042, PMCID: PMC3327813, DOI: 10.1016/j.jbiomech.2012.01.045.Peer-Reviewed Original Research
2005
Model of coupled transient changes of Rac, Rho, adhesions and stress fibers alignment in endothelial cells responding to shear stress
Civelekoglu-Scholey G, Orr A, Novak I, Meister J, Schwartz M, Mogilner A. Model of coupled transient changes of Rac, Rho, adhesions and stress fibers alignment in endothelial cells responding to shear stress. Journal Of Theoretical Biology 2005, 232: 569-585. PMID: 15588637, DOI: 10.1016/j.jtbi.2004.09.004.Peer-Reviewed Original Research
2003
Cell Migration: Integrating Signals from Front to Back
Ridley AJ, Schwartz MA, Burridge K, Firtel RA, Ginsberg MH, Borisy G, Parsons JT, Horwitz AR. Cell Migration: Integrating Signals from Front to Back. Science 2003, 302: 1704-1709. PMID: 14657486, DOI: 10.1126/science.1092053.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonAnimalsCell AdhesionCell MovementCell PolarityHumansIntegrinsModels, BiologicalProteinsPseudopodiaSignal Transduction
1988
How actin binds and assembles onto plasma membranes from Dictyostelium discoideum.
Schwartz M, Luna E. How actin binds and assembles onto plasma membranes from Dictyostelium discoideum. Journal Of Cell Biology 1988, 107: 201-209. PMID: 3392099, PMCID: PMC2115166, DOI: 10.1083/jcb.107.1.201.Peer-Reviewed Original ResearchMeSH KeywordsActin CytoskeletonActinsCell MembraneCross-Linking ReagentsDictyosteliumModels, BiologicalPolymersConceptsPolymerizationSuccessive monomersMembrane surfacePositive cooperativityActin trimerTight bindingAssembly stateHistidine-40Critical concentrationLow salt bufferDerivativesSalt bufferEthoxyformic anhydrideCooperativitySolutionMonomersMembraneAffinityMultivalencyOligomersAnhydrideActin nucleiBindingCross-linking experimentsActin oligomers