2017年2月27日,,英國《自然》旗下《科學報告》在線發(fā)表倫敦金士頓大學、金士頓醫(yī)院,、新維多利亞醫(yī)院,、阿拉伯聯(lián)合酋長國法蒂瑪醫(yī)學院的研究報告,發(fā)現(xiàn)浸潤性乳腺癌與高風險人類乳頭瘤病毒(HPV)有相關性,。 雖然HPV已經(jīng)涉及多種癌癥病因,,但是評估HPV存在于乳腺癌的研究產(chǎn)生了很大爭議。到目前為止,,大多數(shù)研究集中于乳腺癌中存在病毒脫氧核糖核酸(DNA),,仍然無法直接證明HPV持續(xù)存在可引起乳腺癌的浸潤性。盡管若干國家已經(jīng)開展這些研究,,但是英國此前尚無關于乳腺癌存在高風險HPV及其生物活性的研究。 本研究使用聚合酶鏈反應和桑格測序從110份英國患者新鮮乳腺組織樣本篩選出12種高風險HPV類型DNA,,再使用蛋白質印跡法和斑點印跡法從HPV-DNA陽性樣本篩選出HPV癌蛋白(癌基因表達后得到的蛋白質)表達,。 結果發(fā)現(xiàn)42%的乳腺組織存在高風險HPV,其中病毒活性僅見于一些浸潤性癌(5/26),。 因此,,該研究在英國首次發(fā)現(xiàn)HPV癌蛋白在浸潤性病例中的選擇性表達,可使高風險HPV在某些類型乳腺癌發(fā)生中發(fā)揮作用,。
Sci Rep. 2017 Feb 27;7:43591. Association of High Risk Human Papillomavirus and Breast cancer: A UK based Study. Salman NA, Davies G, Majidy F, Shakir F, Akinrinade H, Perumal D, Ashrafi GH. Kingston University London, London, UK; Kingston Hospital, London, UK; The new Victoria hospital, London, UK; Fatima College of Health Sciences, UAE. Infection by human papillomaviruses (HPVs) has been implicated in the aetiology of a variety of cancers. Studies evaluating the presence of HPVs in breast cancer (BC) have generated considerable controversy. To date, most studies have focused on the presence of viral DNA in BC; however there are important gaps in evidencing the role of HPV persistence in the invasiveness of BC. While these studies have been conducted in several countries, none, on the presence and biological activity of high risk (HR) HPV in BC has been done in the UK. Hence, we aimed to investigate these gaps by screening a total of 110 fresh breast tissue specimens from UK patients for the presence of twelve HR-HPV types DNA using PCR and Sanger sequencing. Samples positive for HPV-DNA were screened for viral oncoprotein expression using western blot and dot blot. Data obtained showed the presence of HR-HPVs in 42% of breast tissues of which the viral activity was only confirmed in a number of invasive carcinomas (5/26). This finding, the first to report in the UK, suggests that the selective expression of viral oncoprotein in invasive cases may propose a role for HR-HPVs in the development of some types of BC. PMID: 28240743 DOI: 10.1038/srep43591 \ |
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