Neuregulin-1NeuregulinsReceptor, Epidermal Growth FactorReceptor, erbB-3Epidermal Growth FactorReceptor, erbB-2BreastBreast NeoplasmsCarcinoma, Ductal, BreastCell Line, TumorReceptors, EstrogenGenes, erbBGene Expression Regulation, NeoplasticReceptors, ProgesteroneBreast DiseasesTamoxifenNeoplasm InvasivenessNeoplasm MetastasisAntineoplastic AgentsMammographyPrognosisTumor Markers, BiologicalSignal TransductionQuinazolinesTumor Cells, CulturedMice, NudeAntineoplastic Agents, HormonalNeoplasm StagingBreast Neoplasms, MaleNeoplasm ProteinsCell ProliferationImmunohistochemistryDrug Resistance, NeoplasmPhosphorylationGenes, erbB-2MastectomyEarly Detection of CancerLung NeoplasmsChemotherapy, AdjuvantRNA, MessengerRisk FactorsGenes, BRCA1Carcinoma, LobularPostmenopauseAntineoplastic Combined Chemotherapy ProtocolsCarcinomaCell DivisionMCF-7 CellsAntibodies, Monoclonal, HumanizedCarcinoma, Intraductal, NoninfiltratingMammary Neoplasms, ExperimentalMutationSurvival AnalysisReverse Transcriptase Polymerase Chain ReactionEstrogen Receptor alphaBlotting, WesternDisease-Free SurvivalGenetic Predisposition to DiseaseGene Expression ProfilingEstrogensOvarian NeoplasmsTransforming Growth Factor alphaCase-Control StudiesPremenopauseBreast FeedingNeoplasms, Hormone-DependentLymphatic MetastasisAntibodies, MonoclonalNeoplasm Recurrence, LocalSurvival RateNeoplasmsBreast Self-ExaminationFollow-Up StudiesApoptosisXenograft Model Antitumor AssaysRiskCell MovementDisease ProgressionRNA, Small InterferingMenopauseTransfectionCell LineTime FactorsMammary Glands, HumanDown-RegulationBRCA2 ProteinTreatment OutcomeEstrogen AntagonistsProspective StudiesBRCA1 ProteinRetrospective StudiesProstatic NeoplasmsCell Transformation, NeoplasticFibrocystic Breast DiseaseGenes, BRCA2Aromatase InhibitorsDNA, NeoplasmRisk AssessmentGene AmplificationAge Factors