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Phenotyping analysis of p53 knockout mice produced by gene editing and comparison with conventional p53 knockout mice
Cited 2 time in
Web of Science
Cited 2 time in Scopus
- Authors
- Issue Date
- 2019-06
- Publisher
- 한국유전학회
- Citation
- Genes & Genomics, Vol.41 No.6, pp.701-712
- Abstract
- BackgroundKnockout (KO) mice developed by homologous recombination (HR) have become useful tools to elucidate gene function. However, HR has low KO efficiency and is time-consuming, labor-intensive, and expensive. Gene editing' has received much attention for efficient genetic manipulation.ObjectiveAs generation of KO mice is simplified, KO mice produced by HR can be feasibly reproduced using gene editing. However, phenotyping analysis and comparison between KO mice produced by these two techniques is necessary.MethodsWe generated p53 KO mice through gene editing and compared their phenotype with the already reported HR-mediated p53 KO mice.ResultsTumors occurred in 36 (73%) of 49 homozygous KO mice and the mean age of occurrence was 23weeks, with lymphoma (64%) and sarcoma (23%) being the most common. Tumors were also developed in 12 heterozygous mice and the mean age of occurrence was 40weeks, with sarcoma (54%) and lymphoma (46%) in high proportion. Homozygotes had a mean life span of 15752days and developmental abnormalities were found in females compared to in males (P<0.05, P<0.001).ConclusionWe analyzed the basic phenotype of p53 KO mice and observed no significant difference from the conventional HR-mediated p53 KO mice.
- ISSN
- 1976-9571
- Language
- ENG
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