Neuregulin-1NeuregulinsReceptor, erbB-3Receptor, erbB-2Receptor, Epidermal Growth FactorGenes, erbBOncogene Proteins v-erbBEpidermal Growth FactorSignal TransductionDimerizationReceptor Protein-Tyrosine KinasesLigandsCell Line, TumorQuinazolinesPhosphorylationBreast NeoplasmsTransforming Growth Factor alphaPhthalimidesIntercellular Signaling Peptides and ProteinsProto-Oncogene Proteins c-aktAntibodies, Monoclonal, HumanizedGenes, erbB-2Phosphatidylinositol 3-KinasesSchwann CellsCell ProliferationProto-Oncogene ProteinsAntineoplastic AgentsTumor Cells, CulturedProtein Structure, TertiaryAntibodies, MonoclonalGlycoproteinsProtein BindingVulvar NeoplasmsGene Expression Regulation, NeoplasticNeoplasmsDown-RegulationCell DivisionProtein Kinase InhibitorsCell Transformation, NeoplasticModels, BiologicalGrowth SubstancesImmunoprecipitationBlotting, WesternDrug Resistance, NeoplasmRNA, MessengerEnzyme ActivationCell LineCells, CulturedReverse Transcriptase Polymerase Chain ReactionEndocytosisEnzyme InhibitorsRecombinant ProteinsCell MovementMAP Kinase Signaling SystemMice, TransgenicMice, NudeTransfectionTransplantation, HeterologousUmbilical CordImmunohistochemistryMutationExtracellular Signal-Regulated MAP KinasesMolecular Sequence DataApoptosisModels, MolecularCell SurvivalRecombinant Fusion ProteinsEpithelial CellsDNA PrimersMucin-4Amino Acid SequenceNerve Tissue ProteinsCarrier ProteinsCell DifferentiationRats, Sprague-DawleyBlotting, NorthernMice, Inbred C57BL