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通过Cas9和Cas12a追踪双核酶单细胞血统

Cheng Chen¹, Yuanxin Liao², Miao Zhu²

¹Center for Cell Lineage Technology and Engineering, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangdong-Hong Kong Joint Laboratory for Stem Cell and Regenerative Medicine, GIBH-CUHK Joint Research Laboratory on Stem Cell and Regenerative Medicine, GIBH-HKU Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, China-New Zealand Belt and Road Joint Laboratory on Biomedicine and Health, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.

|December 25, 2024

概括

杜特拉塞 (DuTracer) 使用两个CRISPR-Cas9系统增强了单细胞血统追踪,提高了记录的准确性和深度. 这种工具有助于解开复杂的生物系统中的细胞命运决定和家谱.

科学领域:

发展生物学发展生物学
遗传学是一个遗传学.
分子生物学分子生物学

背景情况:

CRISPR-Cas9基因编辑使高分辨率的单细胞血统追踪成为可能,将细胞状态与血统历史联系起来.
现有的谱系追踪方法在记录能力和条码丢失方面存在局限性,这阻碍了详细的家谱分析.

研究的目的:

推出DuTracer,一个用于可诱导,高分辨率单细胞血统追踪的新工具.
克服当前血统追踪技术的局限性,例如条形码丢失和限制的记录深度.

主要方法:

利用两个正交的CRISPR-Cas9基因编辑系统进行谱系记录.
开发了一种可诱导的系统,用于控制的血统追踪.
应用DuTracer在小鼠胚胎体和神经质细胞器官中.

主要成果:

杜特拉塞 (DuTracer) 展示了增强的血统记录,并将目标丢失降到最低.
该工具显示了实现更深层次的血统树的潜力.
鉴定了转录因子Foxb1作为关键调节器在神经体前细胞命运的决定.

结论:

DuTracer为单细胞谱系追踪提供了一种多功能和改进的方法.
该工具有助于在复杂的生物过程中精确地查询细胞系.
DuTracer有助于识别细胞命运决定的分子驱动因素.

关键词:

科普:基因组学基因组学这就是Cas12a.这就是Cas9的情况.进入的过程中,网站间删除网站间删除单细胞血统的追踪单细胞血统的追踪

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