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. 2010 Jan 16:10:19.
doi: 10.1186/1471-2407-10-19.

Detection of HPV DNA in esophageal cancer specimens from different regions and ethnic groups: a descriptive study

Xueqian Wang  1 , Xiuyun Tian, Fangfang Liu, Yiqiang Zhao, Min Sun, Dafang Chen, Changdong Lu, Zhong Wang, Xiaotian Shi, Qingying Zhang, Donghong Zhang, Zhongying Shen, Feng Li, Curtis C Harris, Hong Cai, Yang Ke
Affiliations

Detection of HPV DNA in esophageal cancer specimens from different regions and ethnic groups: a descriptive study

Xueqian Wang et al. BMC Cancer. .

Abstract

Background: HPV has been found repeatedly in esophageal carcinoma tissues. However, reported detection rates of HPV DNA in these tumors have varied markedly. Differences in detection methods, sample types, and geographic regions of sample origin have been suggested as potential causes of this discrepancy.

Methods: HPV L1 DNA and HPV genotypes were evaluated in 435 esophageal carcinoma specimens collected from four geographic regions with different ethnicities including Anyang in north China, Shantou in south China, Xinjiang in west China, and the United States. The HPV L1 fragment was detected using SPF1/GP6+ primers. HPV genotyping was performed using genotype specific PCR.

Results: Two hundred and forty four of 435 samples (56.1%) tested positive for HPV L1. Significant differences in detection rate were observed neither among the three areas of China nor between China and the US. HPV6, 16, 18, 26, 45, 56, 57, and 58 were identified in L1 positive samples. HPV16 and 57 were the most common types in all regions, followed by HPV26 and HPV18.

Conclusions: HPV infection is common in esophageal carcinoma independent of region and ethnic group of origin. Findings in this study raise the possibility that HPV is involved in esophageal carcinogenesis. Further investigation with a larger sample size over broader geographic areas may be warranted.

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