Virus dynamics in the presence of synaptic transmission.

Virus dynamics in the presence of synaptic transmission.
复制标题

DOI:
10.1016/j.mbs.2013.01.003
复制
发表时间:
2013-04
影响因子:
4.3
通讯作者:
Wodarz D
Wodarz D
中科院分区:
生物学4区
文献类型:
--
作者:
Komarova NL;Wodarz D

文献摘要

参考文献

被引文献

相似文献

传统上,病毒动力学模型考虑受感染细胞和目标细胞的群体,以及可以感染易感细胞的游离病毒群体。然而,近年来人们已经清楚,细胞间的直接传播对于病毒的体内传播也发挥着重要作用,尤其是逆转录病毒,如人类 T 淋巴细胞病毒-1 (HTLV-1) 和人类免疫缺陷病毒 (HIV)。这种细胞间传播被认为是通过病毒学突触的形成而发生的,病毒学突触是在受感染的源细胞和易感靶细胞之间形成的。在这里,我们制定并分析了一类包括这种细胞间突触传递的病毒动力学模型。我们探索了由每个突触传递的病毒数量定义的病毒的不同“策略”,并确定策略的选择如何影响病毒的基本繁殖率 R0,从而影响其建立持续感染的能力。我们表明,根据有关病毒动力学的具体假设,转移病毒数量较低或中等的策略可能对应于 R0 的最高值。我们还探讨了不同病毒株的进化竞争,这些病毒因其突触策略而不同,并表明以具有最高 R0 的突触策略为特征的病毒赢得了进化竞争并排除了其他劣等病毒株。
Traditionally, virus dynamics models consider populations of infected and target cells, and a population of free virus that can infect susceptible cells. In recent years, however, it has become clear that direct cell-to-cell transmission can also play an important role for the in vivo spread of viruses, especially retroviruses such as human T lymphotropic virus-1 (HTLV-1) and Human immundeficeincy virus (HIV). Such cell-to-cell transmission is thought to occur through the formation of virological synapses that are formed between an infected source cell and a susceptible target cell. Here we formulate and analyze a class of virus dynamics models that include such cell-cell synaptic transmission. We explore different ”strategies” of the virus defined by the number of viruses passed per synapse, and determine how the choice of strategy influences the basic reproductive ratio, R0, of the virus and thus its ability to establish a persistent infection. We show that depending on specific assumptions about the viral kinetics, strategies with low or intermediate numbers of viruses transferred may correspond to the highest values of R0. We also explore the evolutionary competition of viruses of different strains, which differ by their synaptic strategy, and show that viruses characterized by synaptic strategies with the highest R0 win the evolutionary competition and exclude other, inferior, strains.
DOI: 10.1002/bies.10386
发表时间: 2004-02-01
期刊: BIOESSAYS
影响因子: 4
作者:
Bretscher, MT;Althaus, CL;Bonhoeffer, S
通讯作者: Bonhoeffer, S
DOI: 10.1098/rstb.2000.0640
发表时间: 2000-08-29
影响因子: 6.3
作者:
Thomsen, AR;Nansen, A;Christensen, JP
通讯作者: Christensen, JP
DOI: 10.1128/jvi.78.16.8942-8945.2004
发表时间: 2004-08-01
影响因子: 5.4
作者:
Dixit, NM;Perelson, AS
通讯作者: Perelson, AS
DOI: 10.1016/j.epidem.2008.07.001
发表时间: 2009-03
期刊: EPIDEMICS
影响因子: 3.8
作者:
Lipsitch, Marc;Colijn, Caroline;Cohen, Ted;Hanage, William P.;Fraser, Christophe
通讯作者: Fraser, Christophe
DOI: 10.1186/1745-6150-7-16
发表时间: 2012-05-08
期刊: BIOLOGY DIRECT
影响因子: 5.5
作者:
Cummings, Kara W.;Levy, David N.;Wodarz, Dominik
通讯作者: Wodarz, Dominik