Patient-adapted, specific activation of HIV-1 by customized TAL effectors (TALEs), a proof of principle study.
Patient-adapted, specific activation of HIV-1 by customized TAL effectors (TALEs), a proof of principle study.
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通过定制 TAL 效应器 (TALE) 进行针对患者的特异性 HIV-1 激活,这是一项原理研究证明
DOI:
10.1016/j.virol.2015.09.018
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发表时间:
2015
期刊:
影响因子:
3.7
通讯作者:
Behrens SE
中科院分区:
文献类型:
--
作者:
Geissler R;Hauber I;Funk N;Richter AK;Behrens M;Renner I;Chemnitz J;Hofmann- Sieber H;Baum H;van Lunzen J;Boch J;Hauber J;Behrens SE
The major obstacle to cure infections with human immunodeficiency virus (HIV-1) is integrated proviral genomes, which are not eliminated by antiretroviral therapies (ART). Treatment approaches with latency-reversing agents (LRAs) aim at inducing provirus expression to tag latently-infected cells for clearance through viral cytopathic effects or cytotoxic T cell (CTL) responses. However, the currently tested LRAs reveal evident drawbacks as gene expression is globally induced and viral outgrowth is insecure. Here, we present transcription activator-like effector (TALE) proteins as potent tools to activate HIV-1 specifically. The large variety of circulating HIV-1 strains and, accordingly, integrated proviruses was addressed by the programmable DNA-specificity of TALEs. Using customized engineered TALEs, a substantial transcription activation and viral outgrowth was achieved with cells obtained from different HIV-1 patients. Our data suggest that TALEs may be useful tools in future strategies aimed at removing HIV-1 reservoirs.
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