PolyomavirusPolyomavirus InfectionsAntigens, Polyomavirus TransformingMerkel cell polyomavirusAntigensBK VirusAntigens, Viral, TumorJC VirusCarcinoma, Merkel CellTumor Virus InfectionsAntigens, NeoplasmAntigens, BacterialAntigens, SurfaceAntigens, ViralDNA, ViralMerkel CellsTumor Markers, BiologicalMolecular Sequence DataCapsid ProteinsCell LineTumor Necrosis Factor-alphaCell Line, TumorSimian virus 40Tumor BurdenBase SequenceAntigens, ProtozoanAntibodies, MonoclonalMice, Inbred BALB CNeoplasms, ExperimentalHLA AntigensLeukoencephalopathy, Progressive MultifocalCarcinoembryonic AntigenTumor Suppressor Protein p53Wilms TumorAntigens, FungalCell Transformation, ViralMutationH-2 AntigensAntigens, CDAntigens, HelminthMammary Neoplasms, ExperimentalPolyomaviridaeGenes, Tumor SuppressorCells, CulturedPolymerase Chain ReactionAmino Acid SequenceDNA ReplicationCell Transformation, NeoplasticVirus ReplicationTransfectionCarcinoid TumorMice, Inbred C57BLT-LymphocytesSkin NeoplasmsProliferating Cell Nuclear AntigenReceptors, Antigen, T-CellRNA, MessengerEpitopesNeuroendocrine TumorsEnzyme-Linked Immunosorbent AssayHLA-DR AntigensTumor Suppressor ProteinsBrain NeoplasmsCell DivisionHistocompatibility AntigensTumor MicroenvironmentCapsidCross ReactionsProstate-Specific AntigenGenes, ViralAntigens, Tumor-Associated, CarbohydrateNeoplasm ProteinsHistocompatibility Antigens Class IIAdenocarcinomaImmunohistochemistryImmunoglobulin GTime FactorsCell ProliferationFluorescent Antibody TechniqueNeoplasm MetastasisReceptors, Antigen, B-CellNeovascularization, PathologicEnhancer Elements, GeneticTranscription, GeneticOncogene Proteins, ViralAntibodies, ViralHLA-A2 AntigenImmunoenzyme TechniquesTransplantation, HeterologousNeoplasmsO AntigensRecombinant ProteinsDNA-Binding ProteinsMice, TransgenicUrineAntigens, CD15Antigens, CD8Promoter Regions, GeneticLymphocyte ActivationProto-Oncogene Proteins pp60(c-src)