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  • Title: The role of human papillomavirus on the prognosis and treatment of oropharyngeal carcinoma.
    Author: Fung N, Faraji F, Kang H, Fakhry C.
    Journal: Cancer Metastasis Rev; 2017 Sep; 36(3):449-461. PubMed ID: 28812214.
    Abstract:
    Human papillomavirus positive oropharyngeal cancer (HPV-positive OPC) is a distinct subtype of head and neck carcinoma (HNC) distinguished from HPV-negative HNC by its risk factor profile, clinical behavior, and molecular biology. Compared to HPV-negative HNC, HPV-positive OPC exhibits significantly better prognosis and an enhanced response to treatment. Recognition of the survival benefit of HPV-positive tumors has led to therapeutic de-intensification strategies aiming to mitigate treatment-related toxicities while maintaining high response rates. In this review, we summarize key aspects of oral HPV infection and the molecular mechanisms of HPV-related carcinogenesis. We review the clinical and molecular characteristics of HPV-positive OPC that contribute to its improved prognosis compared to HPV-negative HNC. We also discuss current and emerging treatment strategies, emphasizing potential mechanisms of treatment sensitivity and the role of therapeutic de-intensification in HPV-positive OPC. Lastly, we examine literature on the management and prognosis of recurrent/metastatic HPV-positive OPC with a focus on the role of salvage surgery in its management.
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