Stem CellsEndothelial CellsNeovascularization, PhysiologicNeovascularization, PathologicAngiogenesis InhibitorsVascular Endothelial Growth Factor AAngiogenesis Inducing AgentsEndothelium, VascularVascular Endothelial Growth Factor Receptor-2Antigens, CD34Hematopoietic Stem CellsCells, CulturedStem Cell TransplantationCell DifferentiationCell MovementIschemiaBone Marrow CellsCell ProliferationHindlimbAntigens, CD31Colony-Forming Units AssayCell CountFlow CytometryChemokine CXCL12Cell LineageMice, Inbred C57BLAngiogenic ProteinsHemangioblastsMyeloid Progenitor CellsAntigens, CDFetal BloodBlood VesselsRegenerationSignal TransductionCapillariesReceptor, TIE-2Rats, NudeVascular Endothelial Growth FactorsDisease Models, AnimalHuman Umbilical Vein Endothelial CellsCell AdhesionHematopoietic Stem Cell MobilizationMice, NudeEndothelial Growth FactorsCell SeparationMice, TransgenicBiological MarkersLymphokinesCell DivisionMesenchymal Stromal CellsImmunohistochemistryWound HealingMice, KnockoutAdult Stem CellsApoptosisBlood CellsNitric Oxide Synthase Type IIIGlycoproteinsTime FactorsCarcinoma, Lewis LungUmbilical VeinsReverse Transcriptase Polymerase Chain ReactionHematopoiesisCell AgingPeptidesCell-Derived MicroparticlesReceptors, CXCR4Fibroblast Growth Factor 2Bone MarrowCell Culture TechniquesLeukocytes, MononuclearErythroid Precursor CellsPhenotypeBone Marrow TransplantationMice, SCIDCell SurvivalLymphoid Progenitor CellsRNA, MessengerFetal Stem CellsCell- and Tissue-Based TherapyEndotheliumNeural Stem CellsAngiogenesis Modulating AgentsAngiopoietin-2Receptors, Vascular Endothelial Growth FactorProto-Oncogene Proteins c-aktVascular Endothelial Growth Factor Receptor-1LamininErythropoietinCulture Media, ConditionedGene Expression Regulation, DevelopmentalBlotting, WesternParacrine CommunicationNeoplasmsDrug CombinationsProto-Oncogene Proteins c-kitCell Line, TumorMicrovesselsRetinal NeovascularizationGene Expression Regulation