Variants of Human Papillomaviruses 16 (HPV16) in Uigur Women in Xinjiang, China

Overview

Journal Infect Agent Cancer

Publisher Biomed Central

Specialty Infectious Diseases

Date 2016 Aug 20

PMID 27540411

Citations 5

Authors

Hongchang He

Hongtao Li

Peiwen Fan

Junling Zhu

Zhenzhen Pan

Huan Pan

Dan Wu

Xianxian Ren

Xiaoqing Guo

Dongmei Li

Zemin Pan

Renfu Shao

Affiliations

Soon will be listed here.

Abstract

Background: Persistent infection of high-risk human papillomaviruses 16 (HPV16) has been considered as the leading cause of cervical cancer. In this study we assessed HPV16 sequence variation and genetic diversity of HPV16 variants in cervical cancer in Uigur women in Xinjiang, China. We analyzed the nucleotide sequences of the open reading frames of E6 and E7, and part of the open reading frames of L1 of HPV16 in Uigur women.

Methods: Biopsies of histologically confirmed HPV16 infections with cervical cancer were obtained from 43 Uigur women in Xinjiang, China. E6, E7 and L1 genes of HPV16 of all samples were amplified and sequenced; the sequences were used in phylogenetic analysis of HPV16 variants.

Results: Our analysis revealed nine nucleotide changes in E6 (five changes), E7 (one change) and L1 (three changes) gene. The most frequently observed variations were T350G (79.1 %). One variation T295G (D64E) at E6 were detected in 6 cases (KT959536, KT959542, KT959546, KT959550, KT959553, KT959558). Deletion (464Asp) along with insertion (448Ser) were observed in L1 (100 %). Most variants were European lineage (97.7 %); only one belongs to Asia variants with common T178G (D25E) in E6 and A647G (N29S) in E7.

Conclusion: The most prevalent HPV16 variants in the Uigur women we studied were of the European lineage. Our results indicate that HPV16 European lineage may serve as a harmful factor associated with the development and progression of cervical cancer.

Citing Articles

Genetic Variability in the E6, E7, and L1 Genes of Human Papillomavirus Types 16 and 18 among Women in Saudi Arabia.

Alsanea M, Alsaleh A, Obeid D, Alhadeq F, Alahideb B, Alhamlan F Viruses. 2023; 15(1).

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Association of cervical carcinogenesis risk with HPV16 E6 and E7 variants in the Taizhou area, China.

Dai M, Qiu Y, Di X, Shi W, Xu H BMC Cancer. 2021; 21(1):769.

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E6/E7 Variants of Human Papillomavirus 16 Associated with Cervical Carcinoma in Women in Southern Mexico.

Antano-Arias R, Del Moral-Hernandez O, Ortiz-Ortiz J, Alarcon-Romero L, Navor-Hernandez J, Leyva-Vazquez M Pathogens. 2021; 10(6).

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Variant sublineages of human papillomavirus type 16 predispose women to persistent infection characterized by a sequence analysis of the E6, L1, and LCR regions.

Yang B, Zhang L, Zhang A, Zhou A, Yuan J, Wang Y Int J Clin Exp Pathol. 2020; 12(1):337-343.

PMID: 31933750 PMC: 6943999.

Screening for HPV infection in exfoliated cervical cells of women from different ethnic groups in Yili, Xinjiang, China.

Pan Z, Song Y, Zhe X, Wang W, Zhu J, Zheng W Sci Rep. 2019; 9(1):3468.

PMID: 30837516 PMC: 6400895. DOI: 10.1038/s41598-019-39790-2.

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