CRISPR/Cas9-mediated targeted chromosome elimination.

CRISPR/Cas9-mediated targeted chromosome elimination.
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DOI:
10.1186/s13059-017-1354-4
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发表时间:
2017-11-24
期刊:
影响因子:
12.3
通讯作者:
Yang H
Yang H
中科院分区:
生物学1区
文献类型:
--
作者:
Zuo E;Huo X;Yao X;Hu X;Sun Y;Yin J;He B;Wang X;Shi L;Ping J;Wei Y;Ying W;Wei W;Liu W;Tang C;Li Y;Hu J;Yang H

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CRISPR/Cas9系统已成为一种有效的基因编辑方法,用于生成携带精确基因突变的细胞,包括染色体片段的重排和删除。然而,这项技术是否可以消除整个染色体仍然未知。在这里,我们演示了使用 CRISPR/Cas9 系统消除目标染色体。通过使用针对多个染色体特异性位点的单指导RNA (sgRNA)诱导的多重切割,或者使用多个sgRNA的混合物(每个sgRNA针对一个特定位点),我们发现可以选择性地消除体内培养细胞、胚胎和组织中的性染色体。此外,这种方法能够在具有额外人类染色体的非整倍体小鼠胚胎干细胞和具有21三体性的人类诱导多能干细胞以及癌细胞中产生有针对性的常染色体缺失。 CRISPR/Cas9介导的靶向染色体消除提供了一种开发染色体缺失动物模型的新方法,以及涉及额外染色体的人类非整倍体疾病的潜在治疗策略。本文的在线版本 (doi:10.1186/s13059-017-1354-4) 包含补充材料,可供授权用户使用。
The CRISPR/Cas9 system has become an efficient gene editing method for generating cells carrying precise gene mutations, including the rearrangement and deletion of chromosomal segments. However, whether an entire chromosome could be eliminated by this technology is still unknown. Here we demonstrate the use of the CRISPR/Cas9 system to eliminate targeted chromosomes. Using either multiple cleavages induced by a single-guide RNA (sgRNA) that targets multiple chromosome-specific sites or a cocktail of multiple sgRNAs, each targeting one specific site, we found that a sex chromosome could be selectively eliminated in cultured cells, embryos, and tissues in vivo. Furthermore, this approach was able to produce a targeted autosome loss in aneuploid mouse embryonic stem cells with an extra human chromosome and human induced pluripotent stem cells with trisomy 21, as well as cancer cells. CRISPR/Cas9-mediated targeted chromosome elimination offers a new approach to develop animal models with chromosome deletions, and a potential therapeutic strategy for human aneuploidy diseases involving additional chromosomes. The online version of this article (doi:10.1186/s13059-017-1354-4) contains supplementary material, which is available to authorized users.
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