Human papillomavirus infection and p16 overexpression in oropharyngeal squamous cell carcinoma: a case series from 2010 to 2014. (August 2015)

• Record Type: Journal Article
• Authors: Donà, Maria Gabriella; Spriano, Giuseppe; Pichi, Barbara; Rollo, Francesca; Laquintana, Valentina; Covello, Renato; Pellini, Raul; Giuliani, Massimo; Pescarmona, Edoardo; Benevolo, Maria
• Is Part Of: Future microbiology. Volume 10:Number 8(2015:Aug.)
• Page Start: 1283
• Page End: 1291
• Publication Date: 2015-08
• Subjects: head and neck neoplasms -- human papillomavirus -- oropharyngeal neoplasms -- p16INK4 protein -- prevalence; Microbiology -- Research -- Periodicals; 616.9041
• DOI: 10.2217/FMB.15.55
• Languages: English
• ISSNs: 1746-0913

Abstract

Aim: Human papillomavirus (HPV) associated oropharyngeal squamous cell carcinomas (OPSCC) show better prognosis and response to therapy. We evaluated HPV-DNA prevalence, p16 overexpression and HPV-attributable fraction in recent consecutive OPSCCs.Materials & methods: 140 OPSCCs were analyzed for HPV-DNA using the INNO-LiPA assay and p16 overexpression using CINtec ® Histology kit.Results: HPV-DNA prevalence was 40.7%, and was significantly higher in basaloid and nonkeratinizing SCCs, but similar in tonsillar and base of tongue SCCs. Moreover, 98.0% of the HPV-positive OPSCCs overexpressed p16, compared with 12.3% of the HPV-negative cases (p < 0.0001). Based on HPV-DNA and p16 double positivity, 39.8% of the cases were HPV related.Conclusion: The high estimate of the HPV-attributable fraction suggests that a substantial proportion of OPSCC patients may be managed less intensively.