title: p53 protein expression in viral warts from patients with epidermodysplasia verruciformis.
abstract: The p53 protein is the product of a tumour suppressor gene, which is implicated in many human malignancies. p53 expression was investigated by immunohistochemistry in a series of viral warts (n = 12) from five patients with epidermodysplasia verruciformis (EV), using a monoclonal anti-p53 antibody (DO7). p53 expression was also investigated in a series of common warts (n = 8), flat warts (n = 8), and penile bowenoid papulosis (n = 6) from non-EV patients. Immunostaining was positive in 11 of 12 (92%) EV warts, whereas p53 reactivity was negative in most cases of warts from non-EV patients. Exons 5-8 of the p53 gene were screened by the polymerase chain reaction-single strand conformation polymorphism technique in four EV warts, which were strongly stained for p53, and p53 mutations were not detected. These results suggest an association between p53 accumulation (probably of wild type) and EV warts.
authors.affiliation: Department of Pathology, Hospital La Paz, Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Pizarro
authors.forename: C
authors.initials: C
authors.lastname: Gamallo
authors.forename: J S
authors.initials: JS
authors.lastname: Castresana
authors.forename: L
authors.initials: L
authors.lastname: Gomez
authors.forename: J
authors.initials: J
authors.lastname: Palacios
authors.forename: N
authors.initials: N
authors.lastname: Benito
authors.forename: J
authors.initials: J
authors.lastname: Espada
authors.forename: E
authors.initials: E
authors.lastname: Fonseca
authors.forename: F
authors.initials: F
authors.lastname: Contreras
mesh_terms: D004819:Epidermodysplasia Verruciformis / Q000235:genetics / Q000378:metabolism* / Q000473:pathology; D005091:Exons; D015972:Gene Expression Regulation, Neoplastic; D016147:Genes, Tumor Suppressor; D006801:Humans; D007150:Immunohistochemistry; D009154:Mutation; D018807:Polymorphism, Single-Stranded Conformational; D016159:Tumor Suppressor Protein p53 / Q000235:genetics / Q000378:metabolism*; D014860:Warts / Q000235:genetics / Q000378:metabolism* / Q000473:pathology
chemical_list: D016159:Tumor Suppressor Protein p53