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Italian observational study on HPV infection, E6, and p16 expression in men with penile cancer
Virology Journal ( IF 4.0 ) Pub Date : 2020-10-22 , DOI: 10.1186/s12985-020-01424-9
Narcisa Muresu 1 , Giovanni Sotgiu 1 , Laura Saderi 1 , Illari Sechi 2 , Antonio Cossu 1 , Vincenzo Marras 1 , Marta Meloni 1 , Marianna Martinelli 3 , Clementina Cocuzza 3 , Francesco Tanda 1 , Andrea Piana 1
Affiliation  

Human Papillomavirus (HPV) infection is one of the most important causes of cancer. It can play a role in cervical and extra-cervical cancers. Penile cancer is rare, even if an increasing trend was recently reported. Aim of the present study was to assess the prevalence and distribution of HPV genotypes in cases of penile cancer diagnosed in Sardinia, Italy. Surrogate markers of HPV infection (i.e., E6 and p16 genes) were also evaluated in all cases. An observational, retrospective study which recruited all cases of penile cancer diagnosed between 2002 and 2019 at a tertiary care hospital in Sardinia, Italy, was carried out. HPV-DNA detection and genotyping were performed by Real-time PCR. Specimens were tested for oncogene E6 mRNA and for p16(INK4a) expression. HPV prevalence was 28.1% (9/32); HPV-16 was the most prevalent genotype (7/9, 77.8%). p16INK4a positivity was found in 66.7% of the samples with a statistically significant difference between HPV-positive and -negative groups. E6-transcript was detected in 71% of the HPV-16 positive samples. The overall survival was not statistically different between HPV-positives and -negatives. The present study confirms the etiologic role of HPV in penile cancer and supports the adoption of vaccination strategies in men and women. Further studies should clarify the diagnostic and prognostic role of E6 and p16 proteins. HPV infection can favor the occurrence of penile cancer, whose diagnosis and prognosis could be improved with the implementation of validated molecular techniques.

中文翻译:

意大利关于阴茎癌男性 HPV 感染、E6 和 p16 表达的观察性研究

人乳头瘤病毒 (HPV) 感染是导致癌症的最重要原因之一。它可以在宫颈癌和宫颈外癌中发挥作用。阴茎癌是罕见的,即使最近报道有增加的趋势。本研究的目的是评估在意大利撒丁岛诊断出的阴茎癌病例中 HPV 基因型的患病率和分布。在所有病例中还评估了 HPV 感染的替代标志物(即 E6 和 p16 基因)。一项观察性、回顾性研究招募了 2002 年至 2019 年在意大利撒丁岛的一家三级医院诊断出的所有阴茎癌病例。HPV-DNA 检测和基因分型通过实时 PCR 进行。测试样本的癌基因 E6 mRNA 和 p16(INK4a) 表达。HPV 流行率为 28.1% (9/32);HPV-16 是最普遍的基因型 (7/9, 77.8%)。在 66.7% 的样本中发现 p16INK4a 阳性,HPV 阳性组和阴性组之间存在统计学显着差异。在 71% 的 HPV-16 阳性样本中检测到 E6 转录本。HPV 阳性和阴性的总生存期没有统计学差异。本研究证实了 HPV 在阴茎癌中的病因作用,并支持在男性和女性中采用疫苗接种策略。进一步的研究应该阐明 E6 和 p16 蛋白的诊断和预后作用。HPV 感染可促进阴茎癌的发生,通过实施经验证的分子技术可以改善其诊断和预后。在 71% 的 HPV-16 阳性样本中检测到 E6 转录本。HPV 阳性和阴性的总生存期没有统计学差异。本研究证实了 HPV 在阴茎癌中的病因作用,并支持在男性和女性中采用疫苗接种策略。进一步的研究应该阐明 E6 和 p16 蛋白的诊断和预后作用。HPV 感染可促进阴茎癌的发生,通过实施经验证的分子技术可以改善其诊断和预后。在 71% 的 HPV-16 阳性样本中检测到 E6 转录本。HPV 阳性和阴性的总生存期没有统计学差异。本研究证实了 HPV 在阴茎癌中的病因作用,并支持在男性和女性中采用疫苗接种策略。进一步的研究应该阐明 E6 和 p16 蛋白的诊断和预后作用。HPV 感染可促进阴茎癌的发生,通过实施经验证的分子技术可以改善其诊断和预后。进一步的研究应该阐明 E6 和 p16 蛋白的诊断和预后作用。HPV 感染可促进阴茎癌的发生,通过实施经验证的分子技术可以改善其诊断和预后。进一步的研究应该阐明 E6 和 p16 蛋白的诊断和预后作用。HPV 感染可促进阴茎癌的发生,通过实施经验证的分子技术可以改善其诊断和预后。
更新日期:2020-10-27
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