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.
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.
Entities:
Keywords:
head and neck neoplasms; human papillomavirus; oropharyngeal neoplasms; p16INK4 protein; prevalence
Authors: Rancés Blanco; Diego Carrillo-Beltrán; Juan P Muñoz; Julio C Osorio; Julio C Tapia; Verónica A Burzio; Iván Gallegos; Gloria M Calaf; Paola Chabay; Francisco Aguayo Journal: Microorganisms Date: 2022-04-24