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在小鼠胚胎中进行CRISPR/Cas9介导基因编辑的简单验证和选方法,以促进转基因小鼠的生产

Dawid Winiarczyk¹, Hossein Khodadadi¹, Paweł Leszczyński^1,2

¹Department of Experimental Embryology, Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Jastrzebiec, Poland.

|March 27, 2025

概括

一种新的裂解试验 (CA) 有效地选了小鼠胚胎中的CRISPR/Cas9基因编辑. 这种方法减少了对桑格测序和在疾病模型开发中广泛使用动物的需求.

科学领域:

遗传学和基因组学遗传学和基因组学
分子生物学分子生物学
发展生物学发展生物学

背景情况:

CRISPR/Cas9是一种强大的基因组工程工具,用于在小鼠中创建疾病模型.
在老鼠胚胎中检测CRISPR/Cas9诱导的基因修饰通常是费力和昂贵的.
需要有效的查方法来简化转基因小鼠模型的生成.

研究的目的:

开发和验证一种新型切割试验 (CA) 用于快速查在植入前小鼠胚胎中的CRISPR/Cas9介导基因编辑.
为了减少对桑格测序的依赖,并在基因编辑小鼠的生成过程中尽量减少动物的使用.
提供一种用户友好的方法,在小鼠胚胎发育的早期阶段确认基因编辑效率.

主要方法:

分裂试验 (CA) 依赖于这样一个原则,即修改的点位置不会被CRISPR相关蛋白9 (Cas9) 核糖蛋白 (RNP) 综合体识别.
该测试检测到RNP复合体在编辑后无法切割目标DNA序列.
应用于植入前小鼠胚胎,以评估CRISPR/Cas9活动.

主要成果:

分裂试验 (CA) 有效地识别了小鼠胚胎中成功的基因修饰.
该方法允许有效选,减少需要桑格测序的胚胎数量.
有助于简化工作流程,以产生基因编辑小鼠,减少动物数量.

结论:

分裂试验 (CA) 是验证小鼠胚胎中CRISPR/Cas9介导的基因变异的有价值的辅助工具.
这种测试能够有效和用户友好地确认基因编辑,有助于生产基因编辑小鼠.
通过提高查效率和减少资源利用,CA方法有助于优化转基因小鼠模型的生成.

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