Quasispecies theory and the behavior of RNA viruses.

Quasispecies theory and the behavior of RNA viruses.
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DOI:
10.1371/journal.ppat.1001005
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发表时间:
2010-07-22
期刊:
影响因子:
6.7
通讯作者:
Andino R
Andino R
中科院分区:
医学1区
文献类型:
--
作者:
Lauring AS;Andino R

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许多医学上重要的病毒,包括艾滋病毒、丙型肝炎病毒和流感,都有RNA基因组。这些病毒以极高的突变率复制,并显示出显著的遗传多样性。这种多样性使病毒种群能够迅速适应动态环境,并对疫苗和抗病毒药物产生抗药性。在过去的30年里,准种理论为理解RNA病毒的进化提供了一个基于种群的框架。准种是一群不同的变种,它们通过突变在基因上联系在一起,在功能水平上进行合作互动,并共同促进种群的特征。准种理论的许多预测与微生物行为和进化的传统观点背道而驰,并对我们理解病毒疾病具有深远的影响。在这里,我们讨论准种理论的基本原理,并描述其与我们理解病毒适应性、毒力和抗病毒治疗策略的相关性。
A large number of medically important viruses, including HIV, hepatitis C virus, and influenza, have RNA genomes. These viruses replicate with extremely high mutation rates and exhibit significant genetic diversity. This diversity allows a viral population to rapidly adapt to dynamic environments and evolve resistance to vaccines and antiviral drugs. For the last 30 years, quasispecies theory has provided a population-based framework for understanding RNA viral evolution. A quasispecies is a cloud of diverse variants that are genetically linked through mutation, interact cooperatively on a functional level, and collectively contribute to the characteristics of the population. Many predictions of quasispecies theory run counter to traditional views of microbial behavior and evolution and have profound implications for our understanding of viral disease. Here, we discuss basic principles of quasispecies theory and describe its relevance for our understanding of viral fitness, virulence, and antiviral therapeutic strategy.
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发表时间: 2010-01-21
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