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Updated: Mar 31, 2026

Genome Editing in Mammalian Cell Lines using CRISPR-Cas
Published on: April 11, 2019
CRISPR/Cas9 genome editing technique and its application in site-directed genome modification of animals
Jin-wei Zhou1, Qi-pin Xu1, Jing Yao2
1College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China.
Abstract:
CRISPR/Cas system, which uses CRISPR RNAs (crRNAs) to guide Cas nuclease to silence invading nucleic acids, is self-defense system against exogenous virus or plasmid in bacteria and archaea. Through molecular modification, the typeⅡCRISPR/Cas system has become a highly efficient site-directed genome editing technique, which is simpler than zinc-finger nucleases (ZFNs) and transcription activator like effector nucleases (TALENs) and easier to be designed and applied. In this review, we summarize the evolutionary history of CRISPR/Cas9 system, the working principle and modification process of type Ⅱ CRISPR/Cas and its application in animal genome modification. We also analyze the existing problems and improvement program of the CRISPR/Cas9 system as well as its application prospect combined with successful cases, which may provide innovative perspectives on improving animal traits and establishing animal models of human diseases.
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