Receptors, TIEReceptor, TIE-2Receptor, TIE-1Angiopoietin-1Angiopoietin-2AngiopoietinsReceptor Protein-Tyrosine KinasesEndothelial CellsNeovascularization, PhysiologicEndothelium, VascularBlood VesselsNeovascularization, PathologicAngiogenesis Inducing AgentsVascular Endothelial Growth Factor ASignal TransductionUmbilical VeinsMice, TransgenicTretoquinolMesenteric Artery, InferiorCells, CulturedAntigens, CD31Vascular MalformationsEndotheliumEmbryo, MammalianMembrane GlycoproteinsVascular Endothelial Growth Factor Receptor-2Mycoplasma pulmonisPericytesEndocardiumHemangiosarcomaAngiogenic ProteinsClothingReceptors, Cell SurfaceVascular Endothelial Growth FactorsLymphokinesEndothelial Growth FactorsMice, KnockoutPhosphorylationProteinsIntegrasesCell-Matrix JunctionsHematopoietic Stem CellsMice, Inbred C57BLRNA, MessengerCell MovementEmbryo LossHuman Umbilical Vein Endothelial CellsLac OperonCapillariesRecombinant Fusion ProteinsLymphangiogenesisImmunohistochemistryProto-Oncogene Proteins c-aktCell LineYolk SacLigandsGene ExpressionGene Expression Regulation, DevelopmentalRNA, Small InterferingAngiogenesis Modulating AgentsReverse Transcriptase Polymerase Chain ReactionNeoplasm ProteinsEnzyme ActivationProto-Oncogene ProteinsCell SurvivalTissue Culture TechniquesOncogene Protein v-cbl