Efficient Inhibition of HIV Using CRISPR/Cas13d Nuclease System.

Efficient Inhibition of HIV Using CRISPR/Cas13d Nuclease System.
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DOI:
10.3390/v13091850
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发表时间:
2021-09-16
期刊:
Viruses
影响因子:
--
通讯作者:
Kulkarni S
Kulkarni S
中科院分区:
其他
文献类型:
--
作者:
Nguyen H;Wilson H;Jayakumar S;Kulkarni V;Kulkarni S

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最近发现的规则间隔短回文重复序列(CRISPR)/Cas 13蛋白是靶向单链RNA(ssRNA)的可编程RNA引导的核糖核酸酶。CRISPR/Cas 13介导的RNA靶向已经成为检测和消除RNA病毒的有力工具。在这里,我们证明了CRISPR/Cas 13 d抑制HIV-1复制的有效性。我们设计了靶向HIV-1高度保守区域的向导RNA(gRNA)。RfxCas 13 d(CasRx)与HIV特异性gRNA组合有效抑制细胞系模型中的HIV-1复制。此外,同时靶向HIV-1转录物中的四个不同的非重叠位点导致对HIV-1复制的强烈抑制。我们还显示了使用CRISPR/Cas 13 d系统在原代CD 4 + T细胞中的有效HIV-1抑制和对从潜伏感染细胞中重新激活的HIV-1的抑制。我们的研究证明了CRISPR/Cas 13 d核酸酶系统靶向急性和潜伏性HIV感染的实用性,并提供了一种针对HIV的替代治疗方式。
Recently discovered Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas13 proteins are programmable RNA-guided ribonucleases that target single-stranded RNA (ssRNA). CRISPR/Cas13-mediated RNA targeting has emerged as a powerful tool for detecting and eliminating RNA viruses. Here, we demonstrate the effectiveness of CRISPR/Cas13d to inhibit HIV-1 replication. We designed guide RNAs (gRNAs) targeting highly conserved regions of HIV-1. RfxCas13d (CasRx) in combination with HIV-specific gRNAs efficiently inhibited HIV-1 replication in cell line models. Furthermore, simultaneous targeting of four distinct, non-overlapping sites in the HIV-1 transcript resulted in robust inhibition of HIV-1 replication. We also show the effective HIV-1 inhibition in primary CD4+ T-cells and suppression of HIV-1 reactivated from latently infected cells using the CRISPR/Cas13d system. Our study demonstrates the utility of the CRISPR/Cas13d nuclease system to target acute and latent HIV infection and provides an alternative treatment modality against HIV.
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