CRISPR based editing of SIV proviral DNA in ART treated non-human primates.

CRISPR based editing of SIV proviral DNA in ART treated non-human primates.
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在抗逆转录病毒治疗的非人灵长类动物中基于CRISPR的SIV原病毒DNA编辑。

DOI:
10.1038/s41467-020-19821-7
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发表时间:
2020-11-27
影响因子:
16.6
通讯作者:
Khalili K
Khalili K
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Mancuso P;Chen C;Kaminski R;Gordon J;Liao S;Robinson JA;Smith MD;Liu H;Sariyer IK;Sariyer R;Peterson TA;Donadoni M;Williams JB;Siddiqui S;Bunnell BA;Ling B;MacLean AG;Burdo TH;Khalili K

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从感染者身上清除HIV DNA仍然是医学上的一个挑战。在这里,我们证明了用腺相关病毒9 (AAV9)-CRISPR/Cas9基因编辑构建体(设计用于消除SIV原病毒DNA)静脉接种SIV感染的猕猴(一种被广泛接受的非人类HIV感染灵长类动物模型),可导致编辑分子广泛分布,并精确切割和去除被感染血细胞和组织基因组中的整合前病毒DNA片段,这些细胞和组织已知是病毒库,包括淋巴结、脾脏、骨髓、还有大脑。因此,AAV9-CRISPR治疗导致血液和组织中原病毒DNA百分比的减少。这些概念验证的观察结果为在临床中消除艾滋病毒储存库提供了有希望的一步。清除整合的HIV DNA仍然是治愈HIV的一个障碍。在这里,Mancuso等人表明,对siv感染的猕猴静脉注射基于腺相关病毒的CRISPR/Cas9基因编辑构建体,可以从已知的病毒储存库感染的血细胞和组织中切除整合的前病毒DNA。
Elimination of HIV DNA from infected individuals remains a challenge in medicine. Here, we demonstrate that intravenous inoculation of SIV-infected macaques, a well-accepted non-human primate model of HIV infection, with adeno-associated virus 9 (AAV9)-CRISPR/Cas9 gene editing construct designed for eliminating proviral SIV DNA, leads to broad distribution of editing molecules and precise cleavage and removal of fragments of the integrated proviral DNA from the genome of infected blood cells and tissues known to be viral reservoirs including lymph nodes, spleen, bone marrow, and brain among others. Accordingly, AAV9-CRISPR treatment results in a reduction in the percent of proviral DNA in blood and tissues. These proof-of-concept observations offer a promising step toward the elimination of HIV reservoirs in the clinic. Removal of integrated HIV DNA remains a roadblock for HIV cure. Here, Mancuso et al. show that intravenous administration of an adeno-associated virus-based CRISPR/Cas9 gene editing construct to SIV-infected macaques results in excision of integrated proviral DNA from infected blood cells and tissues known to be viral reservoirs.
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