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Iranian Journal of Microbiology، جلد ۱۰، شماره ۶، صفحات ۴۴۱-۴۴۶
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عنوان انگلیسی Comparison of methylation patterns of E6 gene promoter region in the low-risk and high-risk human papillomavirus
چکیده انگلیسی مقاله Background and Objectives: Cervical cancer is an important cause of death in women worldwide (1, 2). Cancer is a disease that may be caused by many factors that affect gene activity through genetic and epigenetic changes like DNA methylation. DNA promoter methylation contributes to the chromatin conformation that may be repressing transcription of the human papilloma virus type16 (HPV-16), which is prevalent in the etiology of cervical carcinoma. In the present study, we aimed to investigate DNA methylation target sites in promoter region of both high-risk and low risk HPVs. Materials and Methods: Methylation pattern of E6 promoter in low-risk HPV (type 11) and high-risk HPV (type 16 and 18) was examined by Bisulfite Sequencing PCR (BSP) method. Results: Based on the results, methylation status of high-risk and low-risk HPV-E6 promoter is different. It was revealed that CpG dinucleotides were unmethylated in type 16 and 18 target sequences, whereas in HPV-E6 type 11 all of CpG dinucleotides were methylated except one of them. Conclusion: The result suggested that a significant correlation between methylation status and HPV-induced cervical carcinogenesis, and promoter of HPV-16 and 18 E6 has minimal methylation in comparison with low-risk HPV-11.
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نویسندگان مقاله | Ehsan Zafari
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran


| Hoorieh Soleimanjahi
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran


| Simak Samiee
Food and Drug Laboratory Research Center, Ministry of Health and Medical Education, Tehran, Iran


| Hadi Razavinikoo
Infectious Diseases Research Center, Golestan University of Medical Sciences, Gorgan, Iran


| Zohreh Farahmand
Department of Virology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
نشانی اینترنتی http://ijm.tums.ac.ir/index.php/ijm/article/view/1825
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