title: Head and neck squamous cell carcinoma: role of the human papillomavirus in tumour progression.
abstract: High risk human papilloma viruses (HPVs) have been shown to be independent risk factors for anogenital tract cancers, and have also been detected in head and neck squamous cell carcinomas (HNSCC). The aim of our study was to determine the prevalence of HPV DNA in a group of 47 squamous cell carcinomas of the oropharynx and the oral cavity, and to compare the clinical behaviour of HPV positive and negative tumours. We also assessed the proliferation index, as evaluated by Ki67 immunohistochemistry positivity, and the level of p53 reactivity. HPV DNA was found in 50% of carcinomas of the oropharynx and 36% in those of the oral cavity, the only genotype detected being HPV 16. Patients with HPV-positive carcinomas had a better overall survival than those with HPV-negative carcinomas. Our data suggest that HPV-positive oropharyngeal cancers comprise a distinct disease entity with an improved prognosis.
authors.affiliation: Department of Public Health and Microbiology, Medical School, Turin, Italy.
authors.forename: Marzia
authors.initials: M
authors.lastname: De Petrini
authors.forename: Massimo
authors.initials: M
authors.lastname: Rittà
authors.forename: Marina
authors.initials: M
authors.lastname: Schena
authors.forename: Luigi
authors.initials: L
authors.lastname: Chiusa
authors.forename: Paola
authors.initials: P
authors.lastname: Campisi
authors.forename: Carlo
authors.initials: C
authors.lastname: Giordano
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Landolfo
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Pecorari
authors.forename: Santo
authors.initials: S
authors.lastname: Landolfo
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000821:virology*; D004279:DNA, Viral / Q000737:chemistry / Q000235:genetics; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009062:Mouth Neoplasms / Q000473:pathology* / Q000821:virology*; D009959:Oropharyngeal Neoplasms / Q000473:pathology* / Q000821:virology*; D027383:Papillomaviridae / Q000235:genetics / Q000254:growth & development*; D030361:Papillomavirus Infections / Q000473:pathology* / Q000821:virology; D016133:Polymerase Chain Reaction; D012189:Retrospective Studies; D016019:Survival Analysis; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D004279:DNA, Viral; D019394:Ki-67 Antigen; D016159:Tumor Suppressor Protein p53