title: Intracellular forms of Epstein-Barr virus DNA in human tumour cells in vivo.
abstract: Tumour biopsies from Burkitt lymphoma patients, as well as human nasopharyngeal carcinoma cells growing in athymic mice, contain Epstein-Barr virus DNA as covalently closed circular DNA. In addition integrated viral DNA sequences seem to be present.
mesh_terms: D002051:Burkitt Lymphoma / Q000382:microbiology*; D002277:Carcinoma / Q000382:microbiology*; D004270:DNA, Circular; D005111:Extrachromosomal Inheritance; D004854:Herpesvirus 4, Human / Q000302:isolation & purification; D006801:Humans; D009303:Nasopharyngeal Neoplasms / Q000382:microbiology*; D009690:Nucleic Acid Conformation
chemical_list: D004270:DNA, Circular