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Human papillomavirus 16 detected in nasopharyngeal carcinomas in white Americans but not in endemic Southern Chinese patients.

Human papillomavirus 16 detected in nasopharyngeal carcinomas in white Americans but not in endemic Southern Chinese patients. Head & neck Lin, Z., Khong, B., Kwok, S., Cao, H., West, R. B., Le, Q., Kong, C. S. 2014; 36 (5): 709-714

Abstract

BACKGROUND: We evaluated the relationship of HPV and EBV with race in endemic and non-endemic cohorts of patients with nasopharyngeal carcinoma (NPC), and with smoking status in the non-endemic cohort. METHODS: Tissue microarrays (TMA) were constructed using samples from 86 patients treated in southern China and 108 patients from Stanford. TMAs were stained with p16, HPV ISH, and EBV ISH. PCR was used to confirm EBV(-) cases and HPV status in p16(+) cases. Survival data was available for the Stanford cohort only. RESULTS: No HPV(+) cases were detected in the Chinese cohort. In the Stanford cohort, 5/11 EBV(-) cases harbored HPV16, 10/10 occurred in Caucasians, and 8/11 were smokers. Patients with EBV(-) NPC also showed a trend towards worse survival. CONCLUSIONS: EBV(-) NPC shows an association with the presence of HPV, Caucasian race, and smoking. In contrast, EBV(-) NPC shows no association with HPV in the endemic cohort. Head Neck, 2013.

View details for DOI 10.1002/hed.23362

View details for PubMedID 23616441