title: p53-mediated cellular response to DNA damage in cells with replicative hepatitis B virus.
abstract: Wild-type p53 acts as a tumor suppressor gene by protecting cells from deleterious effects of genotoxic agents through the induction of a G1/S arrest or apoptosis as a response to DNA damage. Transforming proteins of several oncogenic DNA viruses inactivate tumor suppressor activity of p53 by blocking this cellular response. To test whether hepatitis B virus displays a similar effect, we studied the p53-mediated cellular response to DNA damage in 2215 hepatoma cells with replicative hepatitis B virus. We demonstrate that hepatitis B virus replication does not interfere with known cellular functions of p53 protein.
authors.affiliation: Laboratoire d'Oncologie Moléculaire, Institut National de la Santé et de la Recherche Médicale CJF 9302, Centre Léon Bérard, Lyon, France.
authors.forename: A
authors.initials: A
authors.lastname: Puisieux
authors.forename: J
authors.initials: J
authors.lastname: Ji
authors.forename: C
authors.initials: C
authors.lastname: Guillot
authors.forename: Y
authors.initials: Y
authors.lastname: Legros
authors.forename: T
authors.initials: T
authors.lastname: Soussi
authors.forename: K
authors.initials: K
authors.lastname: Isselbacher
authors.forename: M
authors.initials: M
authors.lastname: Ozturk
mesh_terms: D001483:Base Sequence; D050759:Cyclin-Dependent Kinase Inhibitor p21; D016213:Cyclins / Q000235:genetics; D004249:DNA Damage; D017931:DNA Primers / Q000737:chemistry; D004317:Doxorubicin / Q000494:pharmacology; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects; D015967:Gene Expression Regulation, Viral; D006509:Hepatitis B / Q000235:genetics*; D006515:Hepatitis B virus / Q000235:genetics; D006801:Humans; D008969:Molecular Sequence Data; D014407:Tumor Cells, Cultured; D016159:Tumor Suppressor Protein p53 / Q000494:pharmacology*; D014779:Virus Replication
chemical_list: C493956:CDKN1A protein, human; D050759:Cyclin-Dependent Kinase Inhibitor p21; D016213:Cyclins; D017931:DNA Primers; D016159:Tumor Suppressor Protein p53; D004317:Doxorubicin