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- W2017935893 abstract "The last decade has seen changes in the epidemiology of mucosal squamous cell carcinomas of the head and neck (HNSCCs), with increasing numbers of cases attributable to human papillomavirus (HPV) infection. We sought to determine the prevalence of HPV and p16INK4a expression in Australian HNSCC patients and to identify predictors of HPV-positivity. We recruited 248 HNSCC patients with histologically confirmed primary SCC of the oropharynx, oral cavity, hypopharynx or larynx diagnosed between 2004 and 2010. All patients completed a questionnaire. Clinical data were abstracted from medical records. HPV presence in paraffin-embedded tumours was determined by PCR, and expression of p16INK4a, p21WAF1, p53, pRB, cyclin D1, and Ki67 by immunohistochemistry. Fifty (20%) patients were HPV-positive, 63 (28%) overexpressed p16INK4a, and 44 (19%) were positive for HPV and p16INK4a (high concordance between HPV-positivity and p16INK4a status, κ = 0.72). HPV-16 was most common (84%), followed by HPV-18 (10%), HPV-33 (4%) and HPV-69 (2%). HPV and p16INK4a prevalence was highest for SCCs of the oropharynx, followed by hypopharynx, larynx and oral cavity (HPV and p16INK4a p < 0.0001). HPV prevalence and p16INK4a-overexpression were significantly higher in younger than older patients (HPV p = 0.001; p16 INK4a p = 0.003). Heavy smokers had lower HPV prevalence than non- or moderate smokers (p = 0.017). Gender and alcohol consumption were not associated with HPV or p16INK4a status. HPV-positive tumours had significantly lower cyclin D1 and higher p21WAF1 expression than HPV-negative tumours. HPV prevalence and p16INK4a-overexpression were highest in oropharyngeal tumours, younger patients, and non-smokers." @default.
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- W2017935893 date "2015-04-01" @default.
- W2017935893 modified "2023-10-14" @default.
- W2017935893 title "Human papillomavirus status and p16INK4A expression in patients with mucosal squamous cell carcinoma of the head and neck in Queensland, Australia" @default.
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- W2017935893 doi "https://doi.org/10.1016/j.canep.2015.01.010" @default.
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