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Epstein|[ndash]|Barr virus and oncogenesis: from latent genes to tumours

机译:爱泼斯坦| ndash |巴尔病毒与肿瘤发生:从潜在基因到肿瘤

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Epstein-Barr virus (EBV) is a ubiquitous human herpesvirus associated with the development of both lymphoid and epithelial tumours. As a common virus infection, EBV appears to have evolved to exploit the process of B cell development to persist as a life-long asymptomatic infection. However, the virus can contribute to oncogenesis as evidenced by its frequent detection in certain tumours, namely Burkitt's lymphoma (BL), post-transplant B cell lymphomas, Hodgkin's disease (HD) and nasopharyngeal carcinoma (NPC), and by its unique ability to efficiently transform resting B cells in vitro into permanently growing lymphoblastoid cell lines (LCLs). These transforming effects are associated with the restricted expression of EBV genes such that only a subset of so-called latent virus proteins are expressed in virus infected tumours and in LCLs. Distinct forms of EBV latency are manifest in the different tumours and these appear to be a vestige of the pattern of latent gene expression used by the virus during the establishment of persistent infection within the B cell pool. This review summarises our current knowledge of EBV latent gene function and how this relates to the role of the virus in the aetiology of different tumours.
机译:爱泼斯坦巴尔病毒(EBV)是一种普遍存在的人类疱疹病毒,与淋巴样和上皮肿瘤的发展有关。作为一种常见的病毒感染,EBV似乎已经进化为利用B细胞发育过程作为终生无症状感染而持续存在。但是,这种病毒可以促进肿瘤发生,这是因为它在某些肿瘤中经常被发现,例如伯基特氏淋巴瘤(BL),移植后B细胞淋巴瘤,霍奇金病(HD)和鼻咽癌(NPC),以及其独特的抗癌能力在体外有效地将静止的B细胞转化为永久生长的淋巴母细胞系(LCL)。这些转化效应与EBV基因的表达受限制有关,因此只有一部分潜伏病毒蛋白在病毒感染的肿瘤和LCL中表达。 EBV潜伏期的不同形式出现在不同的肿瘤中,这些似乎是病毒在B细胞池内持续感染建立期间使用的潜伏基因表达模式的痕迹。这篇综述总结了我们目前对EBV潜在基因功能的了解,以及这与病毒在不同肿瘤的病因学中的作用之间的关系。

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