Human papillomavirus type 56 polymorphism in Canadian women with and without cervical lesions

人乳头瘤病毒 多态性(计算机科学) 医学 肿瘤科 病毒学 妇科 遗传学 内科学 生物 基因型 基因
作者
Catherine Rodrigues-Coutlée,Jacques Archambault,Deborah Money,Agnihotram V. Ramanakumar,Janet Raboud,Catherine Hankins,Anita Koushik,Harriet Richardson,Paul Brassard,Eduardo L. Franco,François Coutlée
出处
期刊:Journal of Clinical Virology [Elsevier BV]
卷期号:58 (4): 660-665 被引量:3
标识
DOI:10.1016/j.jcv.2013.10.015
摘要

The genomic diversity of high-risk human papillomaviruses (HPV) has been associated with viral persistence and HPV-induced lesions. Studies on HPV56 persistence are still pending. To assess the association between HPV56 polymorphism and HPV56 persistence and presence of high-grade cervical intraepithelial neoplasia (CIN2,3) or cancer. HPV56-positive cervical specimens from 204 women selected from a total of 4669 participants recruited in 5 epidemiological studies (parent studies) were further analyzed by PCR-sequencing of the long control region (LCR). Of the 81 women followed prospectively in cohort studies who could be classified, 34 had persistent and 47 had transient HPV56 infections. Variant HPV56-LCR-MTL-21 was detected more frequently in persistent infections (52.9%, 95% CI: 36.7–68.6%) than in transient infections (25.5%, 95% CI: 15.1–39.4). Considering only women recruited in a cohort of women infected or at high risk for HIV infection, infection with variant HPV56-LCR-MTL-21 (OR = 4.4, 95% CI: 1.3–14.5) was significantly associated with HPV56 persistence controlling in multivariate analysis for high risk HPV detection and HIV infection. A variation at nucleotide 7800 in HPV56-LCR-MTL-21 resulted in the loss of a binding site for Elf-1 embedded in one of the E2 binding sites, a potential activator or repressor of expression of the HPV genome. HPV56 polymorphism was not associated with CIN2,3 or cancer in women enrolled in cross-sectional and case–control studies. Polymorphism in HPV56 may influence the risk that infections with this type will persist.
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