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  • Title: Association of HPV infections with second primary tumors in early-staged oral cavity cancer.
    Author: Huang SF, Li HF, Liao CT, Wang HM, Chen IH, Chang JT, Chen YJ, Cheng AJ.
    Journal: Oral Dis; 2012 Nov; 18(8):809-15. PubMed ID: 22747969.
    Abstract:
    OBJECTIVE: The infection of human papilloma virus (HPV) has been reported in head and neck cancer; however, the clinical significance of HPV infection on the pathogenesis of oral cavity squamous cell carcinoma (OSCC) is still uncertain. MATERIALS AND METHODS: The study recruited 103 patients with pathological early-stage OSCC between March 1997 and December 2003 from Chang Gung Memorial Hospital, Taiwan. Tumor specimens were HPV-genotyped by the EasychipVR HPV Blot method. Clinical association study was performed by using chi-square, Kaplan-Meier, and logrank tests. RESULTS: Thirty-one patients (30.1%) were positive for HPV infection. The most frequent HPV types were types 16 (16 patients, 51.6%) and 18 (seven patients, 22.6%). HPV infection was not associated with tumor aggressiveness (pathological tumor stage or differentiation status), risk exposure (alcohol, cigarette, or areca quid chewing habit), or the treatment outcome (disease-free survival or overall survival). However, infection with HPV-18 was associated with the occurrence of a second primary cancers (P = 0.033), indicating the infection of HPV in OSCC enhances the susceptibility of developing secondary malignancy. CONCLUSIONS: There are 30% of the patients with OSCC infected with HPV, with most high-risk types. HPV-18 infection may enhance the susceptibility of second primary tumors. Large scale of validation study will be needed to confirm this result.
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