Journal
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
Volume 10, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2022.819906
Keywords
CRISPR/Cas9-mediated genome editing; genome editing; embryonic stem; gene knockout; protocol
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Funding
- Henan Provincial People's Hospital, Henan, Zhengzhou, China
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The CRISPR/Cas9 system has greatly revolutionized genome-editing technology, but existing methods are often laborious and inefficient. This study presents an efficient, inexpensive, and rapid one-step protocol for CRISPR/Cas9-assisted gene knockout.
The CRISPR/Cas9 system has unprecedentedly revolutionized genome-editing technology, which is being successfully applied virtually in all branches of biological sciences. Although much success has been attained in gene manipulation, still the majority of methods are laborious and non-integration-free, and require prolonged time for the expansion of mutant cell pools/clones, while fewer cells exhibit functional knockout efficiency. To overcome these obstacles, here, we describe an efficient, inexpensive, integration-free, and rapid one-step protocol for CRISPR/Cas9-assisted gene knockout in murine pluripotent stem cells (PSCs). Our protocol has streamlined both the liposome-based transfection system and screening strategy to work more efficiently with small numbers of PSCs (similar to 2.0 x 10(4) cells) and to minimize laborious steps of lentiviral packaging, transduction, and single-clone passaging. In our method, around 90% (CI = 95%, 79.5230%-100%) of PSC colonies harbored functional knockout in the context of protein expression. Therefore, the current protocol is technically feasible, time-saving, and highly efficient for genome editing in pluripotent stem cells.
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