Harnessing the CRISPR/Cas9 system to disrupt latent HIV-1 provirus.

Harnessing the CRISPR/Cas9 system to disrupt latent HIV-1 provirus.
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DOI:
10.1038/srep02510
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发表时间:
2013
期刊:
影响因子:
4.6
通讯作者:
Koyanagi, Yoshio
Koyanagi, Yoshio
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Ebina, Hirotaka;Misawa, Naoko;Kanemura, Yuka;Koyanagi, Yoshio

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尽管高活性抗逆转录病毒疗法能够控制HIV-1的复制,但该病毒可以在宿主基因组中处于休眠状态,称为潜伏库,并随时构成重新出现的威胁。然而,旨在破坏HIV-1前病毒的新技术可能能够从受感染个体中根除病毒基因组。在这项研究中,我们展示了CRISPR/Cas9系统编辑HIV-1基因组并阻断其表达的潜力。当将靶向LTR的CRISPR/Cas9组分转染到HIV-1 LTR表达休眠和诱导型T细胞中时,在刺激后观察到LTR驱动的表达的显著损失。序列分析证实,这种CRISPR/Cas9系统有效地切割和突变LTR靶位点。更重要的是,该系统还能够从宿主细胞染色体中去除内部病毒基因。我们的研究结果表明,CRISPR/Cas9系统可能是治疗HIV-1感染的有用工具。
Even though highly active anti-retroviral therapy is able to keep HIV-1 replication under control, the virus can lie in a dormant state within the host genome, known as a latent reservoir, and poses a threat to re-emerge at any time. However, novel technologies aimed at disrupting HIV-1 provirus may be capable of eradicating viral genomes from infected individuals. In this study, we showed the potential of the CRISPR/Cas9 system to edit the HIV-1 genome and block its expression. When LTR-targeting CRISPR/Cas9 components were transfected into HIV-1 LTR expression-dormant and -inducible T cells, a significant loss of LTR-driven expression was observed after stimulation. Sequence analysis confirmed that this CRISPR/Cas9 system efficiently cleaved and mutated LTR target sites. More importantly, this system was also able to remove internal viral genes from the host cell chromosome. Our results suggest that the CRISPR/Cas9 system may be a useful tool for curing HIV-1 infection.
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