부산대학교 도서관

Background The genetic profile for human papilloma virus positive (HPV+) oropharyngeal squamous cell carcinomas (OPSCC) remains largely unknown. The purpose of this study was to sequence tissue material from a large cohort of locoregionally-advanced HPV+ OPSCCs. Methods We performed targeted deep sequencing of 395 cancer-associated genes in 114 matched tumor/normal loco-regionally advanced HPV+ OPSCCs. Mutations and copy number aberrations were determined. Results We identified a total of 3459 mutations with an average of 10 mutations per megabase and a median of 28 variants per sample. The most frequently mutated genes were KALRN (28%), SPTBN1 (32%), KMT2A (31%), ZNRF3 (9%), BNC2 (12%), NOTCH2 (25%), FGFR2 (12%), SMAD2 (6%), and AR (13%). Our findings were dominated by COSMIC signature 5 and 12, represented in other head and neck cancers and in hepatocellular carcinomas, respectively. Conclusions We have identified multiple genetic aberrations in HPV+ OPSCCs, and the COSMIC signature 12 as most prevalent. The mutations harbour both therapeutic and prognostic potential. Keywords: Gene sequencing, Deep sequencing, HPV, Human papilloma virus, Oropharyngeal cancer
Author(s): Christian Granhaj[sup.1] , David H. Jensen[sup.1] , Tina Agander[sup.2] , Katalin Kiss[sup.2] , Estrid Hagdall[sup.3] , Lena Specht[sup.4] , Frederik Otzen Bagger[sup.5] , Finn Cilius Nielsen[sup.5] and Christian von [...]