Effect of synaptic transmission on viral fitness in HIV infection.
Effect of synaptic transmission on viral fitness in HIV infection.
复制标题
突触传播对HIV感染中病毒适应性的影响。
DOI:
10.1371/journal.pone.0048361
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发表时间:
2012
期刊:
影响因子:
3.7
通讯作者:
Wodarz D
中科院分区:
文献类型:
--
作者:
Komarova NL;Levy DN;Wodarz D
HIV can spread through its target cell population either via cell-free transmission, or by cell-to-cell transmission, presumably through virological synapses. Synaptic transmission entails the transfer of tens to hundreds of viruses per synapse, a fraction of which successfully integrate into the target cell genome. It is currently not understood how synaptic transmission affects viral fitness. Using a mathematical model, we investigate how different synaptic transmission strategies, defined by the number of viruses passed per synapse, influence the basic reproductive ratio of the virus, R0, and virus load. In the most basic scenario, the model suggests that R0 is maximized if a single virus particle is transferred per synapse. R0 decreases and the infection eventually cannot be maintained for larger numbers of transferred viruses, because multiple infection of the same cell wastes viruses that could otherwise enter uninfected cells. To explain the relatively large number of HIV copies transferred per synapse, we consider additional biological assumptions under which an intermediate number of viruses transferred per synapse could maximize R0. These include an increased burst size in multiply infected cells, the saturation of anti-viral factors upon infection of cells, and rate limiting steps during the process of synapse formation.
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影响因子:
5.4
作者:
DIMITROV, DS;WILLEY, RL;MARTIN, MA
通讯作者:
MARTIN, MA
DOI:
10.1126/science.1183173
发表时间:
2010-02-12
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Doceul V;Hollinshead M;van der Linden L;Smith GL
通讯作者:
Smith GL
DOI:
10.1098/rspb.1979.0086
发表时间:
1979-01-01
期刊:
PROCEEDINGS OF THE ROYAL SOCIETY SERIES B-BIOLOGICAL SCIENCES
影响因子:
--
作者:
GOULD, SJ;LEWONTIN, RC
通讯作者:
LEWONTIN, RC
影响因子:
5.4
作者:
Dixit, NM;Perelson, AS
通讯作者:
Perelson, AS
影响因子:
2
作者:
De Boer, RJ;Perelson, AS
通讯作者:
Perelson, AS