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Article / Publication Details
Abstract
Introduction: Genomic variants of the human papillomavirus type 16 (HPV16) are thought to play differential roles in the susceptibility to head and neck squamous cell carcinomas (HNSCC) and its biological behaviour. This study aims to establish the prevalence of HPV16 variants in an HNSCC cohort and associate them with clinical-pathological characteristics and patient survival. Methods: We retrieved samples and clinical data from 68 HNSCC patients. DNA samples were available from tumour biopsy at the time of the primary diagnosis. Targeted next-generation sequencing (NGS) was used to obtain whole-genome sequences and variants were established based on phylogenetic classification. Results: 74.% of samples clustered in lineage A, 5.7% lineage B, 2.9% C and 17.1% D. Comparative genome analysis revealed 243 single nucleotide variations (SNVs). Of these one hundred were previously reported, according to our systematic review. No significant associations with clinical-pathological variables or patient survival were observed. The E6 amino acid variations E31G, L83V and D25E and E7 N29S, associated with cervical cancer, were not observed, except for N29S in a single patient. Discussion/Conclusion: These results provide a comprehensive genomic map of HPV16 in HSNCC, highlighting tissue-specific characteristics which will help design tailored therapies for cancer patients.
S. Karger AG, Basel
Article / Publication Details
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