Breast NeoplasmsBreastBreast DiseasesCell Line, TumorCarcinoma, Ductal, BreastFibroadenomaConnective Tissue CellsGene Expression Regulation, NeoplasticReceptors, EstrogenFibrocystic Breast DiseaseTumor Cells, CulturedMammary Glands, HumanNeoplasm InvasivenessUltrasonography, MammaryReceptor, erbB-2Receptors, ProgesteroneCarcinoma, Intraductal, NoninfiltratingCell ProliferationNeoplasm MetastasisMammographyTamoxifenAdenofibromaTumor Markers, BiologicalMCF-7 CellsImmunohistochemistryNeoplasm ProteinsRNA, MessengerAntineoplastic AgentsApoptosisEstrogensReverse Transcriptase Polymerase Chain ReactionCarcinomaCarcinoma, LobularMice, NudeEstrogen Receptor alphaPrognosisBlotting, WesternSignal TransductionDrug Resistance, NeoplasmCell DivisionNipplesEpithelial CellsBreast Neoplasms, MaleAntineoplastic Agents, HormonalRNA, Small InterferingNeoplasm StagingEstradiolEstrogen AntagonistsCell MovementGene Expression ProfilingNeoplasms, Hormone-DependentBreast FeedingAntigens, CD24Sensitivity and SpecificityMenopauseImmunoenzyme TechniquesMammary Neoplasms, ExperimentalMastectomyTransfectionDown-RegulationNeoplasmsCarcinoma in SituXenograft Model Antitumor AssaysGenes, BRCA1PostmenopauseCell SurvivalRisk FactorsLymphatic MetastasisDisease ProgressionCell Transformation, NeoplasticGene ExpressionCell CycleTransplantation, HeterologousOvarian NeoplasmsCell Growth ProcessesNeoplasm TransplantationPremenopauseTime FactorsConnective TissueChemotherapy, AdjuvantDNA, NeoplasmGenes, erbB-2Case-Control StudiesRNA InterferencePromoter Regions, GeneticLung NeoplasmsBRCA1 ProteinDrug Screening Assays, AntitumorBase SequenceBreast Self-ExaminationReproducibility of ResultsAdenocarcinomaRNA, NeoplasmNeoplastic Stem CellsEstrogen Receptor ModulatorsMammaplastyCarcinoma, DuctalAntineoplastic Combined Chemotherapy ProtocolsGenetic Predisposition to DiseaseUp-Regulation