title: Lack of detection of p53 expression in retinoblastoma tumor cells.
abstract: p53 was examined by immunohistochemistry in five cases of retinoblastoma, a neoplasm that is caused by a loss of function of the Retinoblastoma susceptibility gene (Rb), mapped to chromosome 13q14. Object of the study was the identification of eventual further gene mutation in retinoblastoma tumor cells determining the onset of an independent tumoral monoclonal cell subset. We did not observe any positive reaction for p53 protein expression in the five cases we analyzed.
authors.affiliation: Clinica Oculistica II, Università di Firenze.
authors.forename: F
authors.initials: F
authors.lastname: Faraldi
authors.forename: A
authors.initials: A
authors.lastname: Calzolari
authors.forename: E
authors.initials: E
authors.lastname: Alfieri
authors.forename: G P
authors.initials: GP
authors.lastname: Mincione
authors.forename: F
authors.initials: F
authors.lastname: Mincione
mesh_terms: D017209:Apoptosis; D002471:Cell Transformation, Neoplastic / Q000235:genetics; D005134:Eye Neoplasms / Q000737:chemistry* / Q000235:genetics / Q000473:pathology; D016161:Genes, Retinoblastoma; D016158:Genes, p53; D006801:Humans; D009363:Neoplasm Proteins / Q000032:analysis* / Q000235:genetics; D012175:Retinoblastoma / Q000737:chemistry* / Q000235:genetics / Q000473:pathology; D016159:Tumor Suppressor Protein p53 / Q000032:analysis* / Q000235:genetics
chemical_list: D009363:Neoplasm Proteins; D016159:Tumor Suppressor Protein p53