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Role of Human papilloma virus Infection and Altered Methylation of Specific Genes in Esophageal Cancer
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  • Role of Human papilloma virus Infection and Altered Methylation of Specific Genes in Esophageal Cancer
  • Role of Human papilloma virus Infection and Altered Methylation of Specific Genes in Esophageal Cancer
저자명
Mohiuddin. Mohammed Khaliq,Chava. Srinivas,Upendrum. Pavani,Latha. Madhavi,Zubeda. Syeda,Kumar. Ajith,Ahuja. Yog Raj,Hasan. Qurr
간행물명
Asian Pacific journal of cancer prevention : APJCP
권/호정보
2013년|14권 7호|pp.4187-4193 (7 pages)
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아시아태평양암예방학회
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정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Background: Evaluation of Human papilloma virus (HPV) and its association with promoter methylation of candidate genes, p53 and Aurora A in esophageal cancer. Materials and Methods: One hundred forty-one esophageal tissue samples from different pathologies were evaluated for HPV infection by PCR, while the promoter methylation status of p53 and Aurora A was assessed by methylation-specific restriction based PCR assay. Statistical analyses were performed with MedCalc and MDR software. Results: Based on endoscopy and histopathology, samples were categorized: cancers (n=56), precancers (n=7), esophagitis (n=19) and normals (n=59). HPV infection was found to be less common in cancers (19.6%), whereas its prevalence was relatively high in precancers (71.4%), esophagitis (57.8%) and normals (45.7%). p53 promoter methylation did not show any significant difference between cancer and normal tissues, whereas Aurora A promoter methylation demonstrated significant association with disease (p=0.00016, OR:5.6452, 95%CI:2.18 to 14.6) when compared to normals. Aurora A methylation and HPV infection was found in a higher percentages of precancer (66.6%), esophagitis (54.5%) and normal (45.2%) when compared to cancers (14.2%). Conclusions: Aurora A promoter methylation is significantly associated with esophageal cancer, but the effect of HPV infection on this epigenetic alteration is not significant. However MDR analysis showed that the hypostatic effect of HPV was nullified when the cases had Aurora methylation and tobacco exposure. Further HPV sub-typing may give an insight into its reduced prevalence in esophageal cancer verses normal tissue. However, with the present data it is difficult to assign any significant role to HPV in the etiopathology of esophageal cancer.