PolyomavirusFibroblastsPolyomavirus InfectionsMammary Glands, HumanAntigens, Polyomavirus TransformingBreastMammary Glands, AnimalMerkel cell polyomavirusCoculture TechniquesStromal CellsAntigensBK VirusAntigens, Viral, TumorBreast NeoplasmsJC VirusCarcinoma, Merkel CellAntigens, BacterialTumor Virus InfectionsAntigens, NeoplasmAntigens, SurfaceAntigens, ViralCells, CulturedDNA, ViralCell LineMerkel CellsFibroblast Growth Factor 2Molecular Sequence DataSimian virus 40Capsid ProteinsBase SequenceFibroblast Growth FactorsAntigens, ProtozoanCell Transformation, ViralLeukoencephalopathy, Progressive MultifocalHLA AntigensAntigens, CDSkin3T3 CellsAntigens, FungalDNA ReplicationAmino Acid SequenceAntigens, HelminthReceptors, Fibroblast Growth FactorH-2 AntigensVirus ReplicationPolyomaviridaeTransfectionAntibodies, MonoclonalFibroblast Growth Factor 1RNA, MessengerMutationCarcinoembryonic AntigenCell DivisionCell Transformation, NeoplasticPolymerase Chain ReactionHLA-DR AntigensFluorescent Antibody TechniqueProliferating Cell Nuclear AntigenReceptors, Antigen, T-CellMice, Inbred BALB CEpitopesGenes, ViralCapsidEnzyme-Linked Immunosorbent AssayCross ReactionsHistocompatibility AntigensTranscription, GeneticT-LymphocytesEnhancer Elements, GeneticHistocompatibility Antigens Class IIRecombinant ProteinsReceptor, Fibroblast Growth Factor, Type 1Gene Expression RegulationAntibodies, ViralProstate-Specific AntigenOncogene Proteins, ViralReceptors, Antigen, B-CellCell Line, TransformedO AntigensProto-Oncogene Proteins pp60(c-src)PlasmidsViral ProteinsImmunoglobulin GDNAMolecular WeightUrineAntigens, CD15Signal TransductionDNA-Binding ProteinsCloning, MolecularReceptor, Fibroblast Growth Factor, Type 2Antigens, Tumor-Associated, CarbohydrateMice, Inbred C57BLHLA-A2 AntigenAntigens, CD8CollagenImmunohistochemistryGenome, ViralGene ExpressionProtein Binding