Genome editing via delivery of Cas9 ribonucleoprotein.

Genome editing via delivery of Cas9 ribonucleoprotein.
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DOI:
10.1016/j.ymeth.2017.04.003
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发表时间:
2017-05-15
期刊:
Methods (San Diego, Calif.)
影响因子:
--
通讯作者:
Carroll D
Carroll D
中科院分区:
其他
文献类型:
--
作者:
DeWitt MA;Corn JE;Carroll D

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CRISPR-Cas基因组编辑系统非常强大。CRISPR试剂的格式和递送方式往往是影响靶向效率的重要因素。重组Cas9蛋白和引导RNA (gRNA)作为预形成的核糖核蛋白(RNP)复合物的递送最近成为一种强大而通用的基因组编辑方法。在这里,我们概述了产生和传递Cas9 RNPs的方法。携带所需序列变化的供体DNA也可以包括在内,以编程精确的序列引入或替换。RNP递送限制了基因组编辑试剂的暴露,减少了脱靶事件,驱动了高同源依赖性修复率,并且可以应用于胚胎以快速生成动物模型。因此,RNP传递最大限度地减少了替代编辑模式的一些缺陷,并迅速被基因组编辑界采用。
The CRISPR-Cas genome editing system is very powerful. The format of the CRISPR reagents and the means of delivery are often important factors in targeting efficiency. Delivery of recombinant Cas9 protein and guide RNA (gRNA) as a preformed ribonucleoprotein (RNP) complex has recently emerged as a powerful and general approach to genome editing. Here we outline methods to produce and deliver Cas9 RNPs. A donor DNA carrying desired sequence changes can also be included to program precise sequence introduction or replacement. RNP delivery limits exposure to genome editing reagents, reduces off-target events, drives high rates of homology-dependent repair, and can be applied to embryos to rapidly generate animal models. RNP delivery thus minimizes some of the pitfalls of alternative editing modalities and is rapidly being adopted by the genome editing community.
人多能干细胞中G2/M细胞周期阶段的富集增强了可自定义的内切酶的HDR介导的基因修复。
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