Genome engineering of mammalian haploid embryonic stem cells using the Cas9/RNA system.

Genome engineering of mammalian haploid embryonic stem cells using the Cas9/RNA system.
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DOI:
10.7717/peerj.230
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发表时间:
2013-12-23
期刊:
影响因子:
2.7
通讯作者:
Hatada I
Hatada I
中科院分区:
生物学3区
文献类型:
--
作者:
Horii T;Morita S;Kimura M;Kobayashi R;Tamura D;Takahashi RU;Kimura H;Suetake I;Ohata H;Okamoto K;Tajima S;Ochiya T;Abe Y;Hatada I

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Haploid embryonic stem cells (ESCs) are useful for studying mammalian genes because disruption of only one allele can cause loss-of-function phenotypes. Here, we report the use of haploid ESCs and the CRISPR RNA-guided Cas9 nuclease gene-targeting system to manipulate mammalian genes. Co-transfection of haploid ESCs with vectors expressing Cas9 nuclease and single-guide RNAs (sgRNAs) targeting Tet1, Tet2, and Tet3 resulted in the complete disruption of all three genes and caused a loss-of-function phenotype with high efficiency (50%). Co-transfection of cells with vectors expressing Cas9 and sgRNAs targeting two loci on the same chromosome resulted in the creation of a large chromosomal deletion and a large inversion. Thus, the use of the CRISPR system in combination with haploid ESCs provides a powerful platform to manipulate the mammalian genome.
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