ArticleExperimental animals2023
An efficient evaluation system for factors affecting the genome editing efficiency in mouse.
Article in Experimental animals, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 2 institutions in 1 country.
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Abstract
Genome editing technology is widely used in the field of laboratory animal science for the production of genetic disease models and the analysis of gene function. One of the major technical problems in genome editing is the low efficiency of precise knock-in by homologous recombination compared to simple knockout via non-homologous end joining. Many studies have focused on this issue, and various solutions have been proposed; however, they have yet to be fully resolved. In this study, we established a system that can easily determine the genotype at the mouse (Mus musculus) Tyr gene locus for genome editing both in vitro and in vivo. In this genome editing system, by designing the Cas9 cleavage site and donor template, wild-type, knockout, and knock-in genotypes can be distinguished by restriction fragment length polymorphisms of PCR products. Moreover, the introduction of the H420R mutation in tyrosinase allows the determination of knock-in mice with specific coat color patterns. Using this system, we evaluated the effects of small-molecule compounds on the efficiency of genome editing in mouse embryos. Consequently, we successfully identified a small-molecule compound that improves knock-in efficiency in genome editing in mouse embryos. Thus, this genome editing system is suitable for screening compounds that can improve knock-in efficiency.
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