2011
Effects of integrin-mediated cell adhesion on plasma membrane lipid raft components and signaling
Norambuena A, Schwartz MA. Effects of integrin-mediated cell adhesion on plasma membrane lipid raft components and signaling. Molecular Biology Of The Cell 2011, 22: 3456-3464. PMID: 21795400, PMCID: PMC3172269, DOI: 10.1091/mbc.e11-04-0361.Peer-Reviewed Original ResearchConceptsLipid raft componentsRaft componentsLipid raftsCyclic adenosine monophosphateCell detachmentCell adhesionLipid raft markersGlycosylphosphatidylinositol-linked proteinsRaft associationRaft markersRho GTPasesNonraft fractionsDetachment of cellsElevation of cAMPStudy of integrinsTermination of growthPlasma membraneH-RasAnchorage dependenceKey defenseCell growthFlotillin2Sucrose gradientsCancer metastasisLipid tails
2009
RalA-Exocyst Complex Regulates Integrin-Dependent Membrane Raft Exocytosis and Growth Signaling
Balasubramanian N, Meier JA, Scott DW, Norambuena A, White MA, Schwartz MA. RalA-Exocyst Complex Regulates Integrin-Dependent Membrane Raft Exocytosis and Growth Signaling. Current Biology 2009, 20: 75-79. PMID: 20005108, PMCID: PMC2822103, DOI: 10.1016/j.cub.2009.11.016.Peer-Reviewed Original ResearchConceptsPlasma membraneRecycling endosomesGrowth signalingActivation of Arf6Small GTPase RalACaveolin-dependent internalizationLipid raft microdomainsAnchorage-independent growthEffects of integrinsExocyst complexActive RalARaft microdomainsMembrane raftsRaft markersIntegrin signalingPancreatic cancer cellsRalAAnchorage dependenceAnchorage independenceCell growthSignalingCell detachmentCancer cellsEndosomesExocytosis
2005
Phospho-caveolin-1 mediates integrin-regulated membrane domain internalization
del Pozo MA, Balasubramanian N, Alderson NB, Kiosses WB, Grande-García A, Anderson RG, Schwartz MA. Phospho-caveolin-1 mediates integrin-regulated membrane domain internalization. Nature Cell Biology 2005, 7: 901-908. PMID: 16113676, PMCID: PMC1351395, DOI: 10.1038/ncb1293.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCaveolaeCaveolin 1CaveolinsCell AdhesionCell ProliferationDynamin IIEndocytosisExtracellular MatrixExtracellular Signal-Regulated MAP KinasesFocal AdhesionsIntegrinsMembrane MicrodomainsMiceMice, KnockoutMicroscopy, Electron, TransmissionNeoplasm InvasivenessNeoplasmsNIH 3T3 CellsPhosphatidylinositol 3-KinasesPhosphorylationRac GTP-Binding ProteinsConceptsCaveolin-1Cholesterol-enriched membrane microdomainsPhosphatidylinositol-3-OH kinaseCell detachmentNovel molecular mechanismCholesterol-rich domainsInhibition of ERKMembrane microdomainsFocal adhesionsDynamin 2Plasma membraneMolecular mechanismsTumor suppressionTyr-14Multiple pathwaysNormal cellsInternalizationERKRacPathwayCaveolaeKinasePhosphorylationAdhesionMicrodomains
2004
Integrins Regulate Rac Targeting by Internalization of Membrane Domains
del Pozo MA, Alderson NB, Kiosses WB, Chiang HH, Anderson RG, Schwartz MA. Integrins Regulate Rac Targeting by Internalization of Membrane Domains. Science 2004, 303: 839-842. PMID: 14764880, DOI: 10.1126/science.1092571.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBinding SitesCell AdhesionCell LineCell MembraneCells, CulturedCholera ToxinCholesterolG(M1) GangliosideGlycosylphosphatidylinositolsGuanosine TriphosphateHumansIntegrin beta1IntegrinsLiposomesMembrane MicrodomainsMiceNIH 3T3 CellsRac1 GTP-Binding ProteinRatsRecombinant Fusion ProteinsSignal TransductionTransfectionConceptsMembrane domainsLipid raftsLipid raft markersPlasma membrane cholesterolCholesterol-rich membranesCell plasma membraneMembrane targetingAdhesion of cellsSmall GTPRaft markersIntegrin signalsPlasma membraneDownstream effectorsEffector activationMembrane lipidsMembrane cholesterolAnchorage-dependent cellsExtracellular matrixCell detachmentNonadherent cellsInternalizationRaftsCellsTargetingMembrane
2000
Cell Adhesion Regulates Ubiquitin-mediated Degradation of the Platelet-derived Growth Factor Receptor β*
Baron V, Schwartz M. Cell Adhesion Regulates Ubiquitin-mediated Degradation of the Platelet-derived Growth Factor Receptor β*. Journal Of Biological Chemistry 2000, 275: 39318-39323. PMID: 11007771, DOI: 10.1074/jbc.m003618200.Peer-Reviewed Original ResearchMeSH KeywordsAdenoviridaeAnimalsBlotting, WesternCell AdhesionCell DivisionCell LineCells, CulturedCysteine EndopeptidasesDose-Response Relationship, DrugDown-RegulationDynaminsEmbryo, MammalianEnzyme InhibitorsFibroblastsFibronectinsGTP PhosphohydrolasesHumansLigandsLysosomesMiceMultienzyme ComplexesPhosphorylationProteasome Endopeptidase ComplexProtein-Tyrosine KinasesReceptors, Platelet-Derived Growth FactorTemperatureTime FactorsTrypsinTyrphostinsUbiquitinsConceptsUbiquitin-dependent pathwayIntegrin-mediated adhesionPlatelet-derived growth factor receptor βPlatelet-derived growth factor receptor betaTyrosine kinase activityGrowth factor receptor βGrowth factor receptor betaProteasome pathwayDetachment of cellsReceptor autophosphorylationKinase activityCellular desensitizationPrimary fibroblastsExtracellular matrixCell detachmentAutophosphorylationProtein levelsCell linesPDGFGrowth factorReceptor betaReceptor βCellsPathwayRecent studies