Clinical implications of human papillomavirus in head and neck cancers.
Human papillomavirus (HPV) is now recognized to play a role in the pathogenesis of a subset of head and neck squamous cell carcinomas (HNSCCs), particularly those that arise from the lingual and palatine tonsils within the oropharynx. High-risk HPV16 is identified in the overwhelming majority of HPV-positive tumors, which have molecular-genetic alterations indicative of viral oncogene function. Measures of HPV exposure, including sexual behaviors, seropositivity to HPV16, and oral, high-risk HPV infection, are associated with increased risk for oropharyngeal cancer. HPV infection may be altering the demographics of HNSCC patients, as these patients tend to be younger, nonsmokers, and nondrinkers. There is sufficient evidence to conclude that a diagnosis of HPV-positive HNSCC has significant prognostic implications; these patients have at least half the risk of death from HNSCC when compared with the HPV-negative patient. The HPV etiology of these tumors may have future clinical implications for the diagnosis, therapy, screening, and prevention of HNSCC.
Fakhry
Carole
C
Department of Viral Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA.
Gillison
Maura L
ML
D000367:Age Factors; D002986:Clinical Trials as Topic; D006258:Head and Neck Neoplasms / Q000473:pathology / Q000628:therapy / Q000821:virology*; D052162:Human papillomavirus 16 / Q000235:genetics / Q000302:isolation & purification*; D006801:Humans; D009959:Oropharyngeal Neoplasms / Q000473:pathology / Q000821:virology; D030361:Papillomavirus Infections / Q000473:pathology / Q000628:therapy / Q000821:virology*; D012307:Risk Factors; D012725:Sexual Behavior; D012907:Smoking; D016019:Survival Analysis; D014067:Tonsillar Neoplasms / Q000473:pathology / Q000628:therapy / Q000821:virology