Paired host and viral whole-genome sequencing reveals HPV45, 51, and 39 as drivers in sinonasal squamous cell carcinoma.

The study design, phase, publication type, and setting were not reported. The investigation focused on patients with sinonasal squamous cell carcinoma (SNSCC). The primary exposure was paired host and viral whole-genome sequencing, with no specific comparator defined in the provided data. Safety data, including adverse events and tolerability, were not reported.

Main results indicated that HPV is the primary oncogenic driver of over 80% of anatomically adjacent oropharyngeal cancers, a fact noted in the context of SNSCC. HPV45, 51, and 39 were identified as driver infections in SNSCC. Furthermore, HPV-human extrachromosomal DNA (ecDNA) amplicons harboring these noncanonical strains mediate viral carcinogenesis. These findings suggest that viral status may drive clinical staging and treatment guidelines in these malignancies.

Secondary outcomes included the assessment of extrachromosomal DNA-associated viral integration, APOBEC mutagenesis, somatic tumor evolution, and the role of viral status in staging. However, the potentially oncogenic consequences and prognostic value of host-virus interactions in SNSCC remain incompletely defined. The study did not report specific absolute numbers, effect sizes, or p-values for these outcomes.

Practice relevance suggests that routine clinical diagnostic HPV panels should be expanded to capture the activity of lesser-studied strains. This is particularly relevant given that SNSCC is an aggressive head and neck cancer of the sinonasal cavity which has not benefitted from therapeutic advances over decades. Causality notes state that HPV-human ecDNA amplicons mediate viral carcinogenesis, though overall evidence certainty was not reported.