Epstein-barr virus sequence variation-biology and disease.

Epstein-barr virus sequence variation-biology and disease.
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DOI:
10.3390/pathogens1020156
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发表时间:
2012-11-08
期刊:
Pathogens (Basel, Switzerland)
影响因子:
--
通讯作者:
Farrell PJ
Farrell PJ
中科院分区:
其他
文献类型:
--
作者:
Tzellos S;Farrell PJ

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eb病毒(EBV)生物学的一些关键问题集中在自然发生的病毒序列差异是否影响感染或EBV相关疾病。了解EBV序列变异的模式对开发EBV疫苗也很重要。目前,世界各地的EBV分离株可分为1型和2型,这是基于EBNA2基因序列的分类。1型EBV在世界范围内最流行,但2型在非洲部分地区很常见。1型EBV比2型EBV更有效地将人B细胞转化为淋巴母细胞样细胞系。可能解释这种细胞转化差异的分子机制现在变得越来越清晰。测序技术的进步将大大增加从世界不同地区分离的EBV全基因组数据的数量。研究独立于1型/ 2型分类的eb病毒株的区域变异,系统调查病毒株、感染与疾病之间的关系将成为可能。最近发现EBV EBNA3B基因的特异性突变可能与弥漫性大B细胞淋巴瘤的发展有关,这说明病毒基因组突变在感染和人类疾病中可能具有重要意义。
Some key questions in Epstein-Barr virus (EBV) biology center on whether naturally occurring sequence differences in the virus affect infection or EBV associated diseases. Understanding the pattern of EBV sequence variation is also important for possible development of EBV vaccines. At present EBV isolates worldwide can be grouped into Type 1 and Type 2, a classification based on the EBNA2 gene sequence. Type 1 EBV is the most prevalent worldwide but Type 2 is common in parts of Africa. Type 1 transforms human B cells into lymphoblastoid cell lines much more efficiently than Type 2 EBV. Molecular mechanisms that may account for this difference in cell transformation are now becoming clearer. Advances in sequencing technology will greatly increase the amount of whole EBV genome data for EBV isolated from different parts of the world. Study of regional variation of EBV strains independent of the Type 1/Type 2 classification and systematic investigation of the relationship between viral strains, infection and disease will become possible. The recent discovery that specific mutation of the EBV EBNA3B gene may be linked to development of diffuse large B cell lymphoma illustrates the importance that mutations in the virus genome may have in infection and human disease.
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