Human papillomavirus as a favorable prognostic factor in a subset of head and neck squamous cell carcinomas: A meta-analysis

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• 作者：Hongwei Liu ; Jintao Li ; Yubai Zhou ; Qin Hu ; Yi Zeng and Mohammadzad Mehryar Mohammadreza
• 刊名：Journal of Medical Virology
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：89
• 期：4
• 页码：710-725
• 全文大小：4932K
• ISSN：1096-9071

文摘

Many epidemical and biological studies have proposed that human papillomavirus (HPV), primarily high-risk HPV16/18, is an etiological factor for a subset of head and neck (HN) cancers. On that premise, we systematically reviewed relevant articles and improved the understanding of HPV-related cancers. This article comprehensively described the characteristics of HPV-associated HN tumors according to demography, histopathology, molecular biology, and prognosis. Meta-analyses were conducted to combine the studies that reported the association between HPV status and these variables using Rev Man 5.0. The pooled results showed that HPV-positive tumors were not only poorly differentiated (OR = 2.77, 95% CI: 2.3–3.32) and smaller (OR = 2.21, 95% CI: 1.75–2.8) but were also strongly associated with oropharynx (OR = 5.8, 95% CI: 4.01–8.38) and node involvement (OR = 2.77, 95% CI: 2.3–3.32). HPV-related tumors showed significantly more p16 overexpression (OR = 34.55, 95% CI: 20.91–57.09) and less TP53 mutations (OR = 0.27, 95% CI: 0.18–0.41) than HPV-negative tumors. The patients with HPV-positive cancers had different clinical behaviors, such as a reduced risks of death (HR = 0.32, 95% CI: 0.29–0.36). This study supported the view point that HPV is a favorable indicator of prognosis and that HPV-related HN tumors are distinct from traditional tumors. This etiological relationship could impact future strategies of diagnosis, prevention, therapy, and prognosis for this subset of patients. J. Med. Virol. 89:710–725, 2017.