Cell-Derived MicroparticlesEndothelial CellsCells, CulturedUmbilical VeinsParticle SizeHuman Umbilical Vein Endothelial CellsMicrospheresEndotheliumPolyglycolic AcidEndothelium, VascularNeovascularization, PhysiologicDrug CarriersAortaCattleCell AdhesionDrug CompoundingAntigens, CD31Blood PlateletsVascular Endothelial Growth Factor AMicroscopy, Electron, ScanningPolyglactin 910Neovascularization, PathologicThromboplastinEndothelium, CornealCapillariesCell MovementVascular Cell Adhesion Molecule-1Flow CytometryE-SelectinDrug Delivery SystemsSignal TransductionChitosanPolymersIntercellular Adhesion Molecule-1MicrocirculationLactic AcidDelayed-Action PreparationsNanoparticlesBlood CoagulationRNA, MessengerChemistry, PharmaceuticalPlatelet ActivationAnnexin A5Nitric Oxide Synthase Type IIICell LineThrombinNitric OxideCell Membrane StructuresCell Adhesion MoleculesBlood VesselsApoptosisVascular Endothelial Growth Factor Receptor-2Technology, PharmaceuticalP-SelectinCapsulesEndothelial Growth FactorsCapillary PermeabilityTumor Necrosis Factor-alphaMicrovesselsMice, Inbred C57BLStress, MechanicalVascular Endothelial Growth FactorsTime FactorsCell DivisionPlatelet Membrane Glycoprotein IIbCell Proliferationvon Willebrand FactorLeukocytesDose-Response Relationship, DrugGene Expression RegulationCell CommunicationAngiogenesis InhibitorsCell SurvivalLymphokinesMonocytesBlotting, WesternPowdersUp-RegulationImmunohistochemistryPulmonary ArteryThrombosisSolubilityPolystyrenesReceptor, TIE-2InflammationReceptors, Cell SurfaceSurface PropertiesPhosphorylationAntigens, CDSiliconReverse Transcriptase Polymerase Chain ReactionFibroblast Growth Factor 2Coculture TechniquesCoagulantsInterleukin-8Receptors, Vascular Endothelial Growth FactorRetinal VesselsMicroscopy, FluorescenceNeutrophilsCell Membrane