title: Incidence of human papillomavirus 16 and 18 infection and p53 mutation in patients with oral squamous cell carcinoma in Japan.
abstract: The purpose of this study was to investigate the prevalence of human papillomaviruses (HPVs) 16 and 18 infection, and p53 mutation in oral squamous cell carcinomas (SCCs) in Japanese patients. Our results showed a higher incidence of HPV16 and 18 infections than previous studies because we combined the findings of a consensus polymerase chain reaction (PCR), restriction fragment length polymorphism by using the restriction enzyme digestion of the PCR products and Southern blot hybridization. Each HPV16 and 18 E6/E7 DNA was detected in 9 (20%) and 25 (54%) of 46 samples. The p53 mutation in the exons from 5 to 8 were detected in 20 out of 46 samples (43%) by a PCR-single strand conformation polymorphism analysis. There was a significant relationship between HPV16 and the p53 mutation (P =0.02) suggesting that HPV16 infection has a mutagenic effect in oral SCC. However, neither HPV infection nor p53 mutation influenced survival.
authors.affiliation: First Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Shima
authors.forename: I
authors.initials: I
authors.lastname: Kobayashi
authors.forename: I
authors.initials: I
authors.lastname: Saito
authors.forename: T
authors.initials: T
authors.lastname: Kiyoshima
authors.forename: K
authors.initials: K
authors.lastname: Matsuo
authors.forename: S
authors.initials: S
authors.lastname: Ozeki
authors.forename: M
authors.initials: M
authors.lastname: Ohishi
authors.forename: H
authors.initials: H
authors.lastname: Sakai
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001483:Base Sequence; D002294:Carcinoma, Squamous Cell / Q000235:genetics*; D004279:DNA, Viral / Q000235:genetics; D005260:Female; D016158:Genes, p53 / Q000235:genetics*; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D009062:Mouth Neoplasms / Q000235:genetics*; D009154:Mutation / Q000235:genetics*; D027383:Papillomaviridae / Q000235:genetics; D030361:Papillomavirus Infections / Q000453:epidemiology* / Q000235:genetics*; D014412:Tumor Virus Infections / Q000453:epidemiology* / Q000235:genetics*
chemical_list: D004279:DNA, Viral