Neuregulin-1NeuregulinsReceptor, erbB-3Receptor, erbB-2Genes, erbBReceptor, Epidermal Growth FactorEpidermal Growth FactorOncogene Proteins v-erbBSignal TransductionCell Line, TumorGenes, erbB-2Breast NeoplasmsPhosphorylationMice, TransgenicGene Expression Regulation, NeoplasticTransfectionRNA, MessengerGene ExpressionMolecular Sequence DataCell ProliferationCell LineApoptosisImmunohistochemistryProto-Oncogene ProteinsBlotting, WesternQuinazolinesTumor Cells, CulturedMutationUp-RegulationReverse Transcriptase Polymerase Chain ReactionProto-Oncogene Proteins c-aktProtein BindingRNA, Small InterferingCells, CulturedDown-RegulationBase SequenceTranscription FactorsGene Expression RegulationAmino Acid SequenceGene AmplificationCell DivisionPhosphatidylinositol 3-KinasesMucin-4Enzyme ActivationCell Transformation, NeoplasticPromoter Regions, GeneticDNA-Binding ProteinsAntineoplastic AgentsRNA InterferenceLigandsDimerizationDrug Resistance, NeoplasmCell SurvivalProtein Structure, TertiaryCell MovementRecombinant Fusion ProteinsCarrier ProteinsProtein-Serine-Threonine KinasesMembrane ProteinsPhenotypeRecombinant ProteinsDNA PrimersTranscription, GeneticProtein IsoformsNeoplasm InvasivenessAdaptor Proteins, Signal TransducingImmunoprecipitationMice, NudeImmunoblottingIntercellular Signaling Peptides and ProteinsMice, Inbred C57BLMammary Neoplasms, ExperimentalCell DifferentiationNeoplasm ProteinsCOS CellsTransforming Growth Factor alphaModels, BiologicalGene Expression ProfilingCell CycleGene Expression Regulation, EnzymologicNuclear ProteinsProtein Kinase InhibitorsMice, KnockoutCyclin D1Antibodies, Monoclonal, HumanizedTumor Suppressor Protein p53Mammary Glands, AnimalEnzyme InhibitorsReceptor Protein-Tyrosine KinasesCloning, MolecularGene Expression Regulation, DevelopmentalSequence Homology, Amino AcidHSP90 Heat-Shock ProteinsTyrphostinsCell NucleusGene Knockdown TechniquesEpithelial CellsProtein TransportAntibodies, MonoclonalTranscriptional Activation