An episomal vector-based CRISPR/Cas9 system for highly efficient gene knockout in human pluripotent stem cells

Abstract Human pluripotent stem cells (hPSCs) represent a unique opportunity for understanding the molecular mechanisms underlying complex traits and diseases. CRISPR/Cas9 is a powerful tool to introduce genetic mutations into the hPSCs for loss-of-function studies. Here, we developed an episomal ve...

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Bibliographic Details
Main Authors: Yifang Xie, Daqi Wang, Feng Lan, Gang Wei, Ting Ni, Renjie Chai, Dong Liu, Shijun Hu, Mingqing Li, Dajin Li, Hongyan Wang, Yongming Wang
Format: article
Language:EN
Published: Nature Portfolio 2017
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Online Access:https://doaj.org/article/791c11cd5d1445dbb9c3d7cae88ee914
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Summary:Abstract Human pluripotent stem cells (hPSCs) represent a unique opportunity for understanding the molecular mechanisms underlying complex traits and diseases. CRISPR/Cas9 is a powerful tool to introduce genetic mutations into the hPSCs for loss-of-function studies. Here, we developed an episomal vector-based CRISPR/Cas9 system, which we called epiCRISPR, for highly efficient gene knockout in hPSCs. The epiCRISPR system enables generation of up to 100% Insertion/Deletion (indel) rates. In addition, the epiCRISPR system enables efficient double-gene knockout and genomic deletion. To minimize off-target cleavage, we combined the episomal vector technology with double-nicking strategy and recent developed high fidelity Cas9. Thus the epiCRISPR system offers a highly efficient platform for genetic analysis in hPSCs.