Abstract
Human papillomavirus(HPV)-related head and neck cancer is recognized as a distinct tumor entity with rising incidence reported for several countries. These tumors arise from squamous cells, typically in the oropharynx. In contrast to cancer associated with other risk factors, HPV-related cancer is driven by viral oncoprotein activity and has individual profiles regarding protein expression, and genetic and epigenetic alterations. Molecular characteristics are p16<sup>IN4A</sup> overexpression, absence of p53 inactivating mutations, and PI3K/AKT and Wnt pathway modulation. Patients with HPV-related head and neck cancer have improved survival compared to those with HPV-negative tumors, and p16<sup>INK4A</sup> staining has been introduced into tumor staging recently. However, no specific or toxicity-reduced treatment modalities have been established for this entity so far. Although the still incomplete and partially inconsistent data in this field needs further study, particular features of HPV-related cancers such as specific microRNA expression, immunology, or gene methylation patterns certainly have the potential to be implemented in future diagnostic and therapeutic concepts.
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