诱导多能干细胞中的高效基因编辑由可诱导的腺基编辑器启用,具有可调节的表达表达
Krittika Nandy1,2, Dinesh Babu1, Sonam Rani1,2
1Center for Stem Cell Research (A Unit of inStem, Bengaluru, India), Christian Medical College, Tamil Nadu, Vellore, 632002, India.
Scientific reports
|December 11, 2023
概括
我们在人类多能干细胞中开发了一种可诱导的基因编辑系统,用于精确的基因编辑. 这种方法使得疾病建模和功能基因组学的快速,高效和多重基因修改成为可能.
科学领域:
- 干细胞生物学 干细胞生物学
- 分子遗传学 分子遗传学
- 基因编辑技术的技术
背景情况:
- 同源细胞系的产生对于使用诱导多能干细胞 (iPSCs) 进行疾病建模至关重要.
- 传统的CRISPR-Cas9方法涉及双链断裂,这可能导致不必要的突变.
- 基础编辑提供了一个精确的替代方案,可以在没有双链断裂的情况下引入特定点突变.
研究的目的:
- 开发一种快速,高效和可诱导的iPSC基因编辑系统.
- 为了使复杂的疾病建模能够进行多重基因组编辑.
- 为了促进对功能基因组研究的基因编辑的时间控制.
主要方法:
- 在AAVS1位点创建了一批表达多西环素诱导ABE8e腺因基编辑器的iPSCs群体.
- 利用可诱导系统进行有针对性的基因编辑,而无需单细胞克隆.
- 在四个独立位置展示了同时进行多重基因组编辑.
主要成果:
- 在iPSC中实现了快速,高效和均的基因编辑.
- 在四个位点同时成功执行 homozygous 突变的多重编辑.
- 通过诱导表达系统对基因编辑进行了时间控制.
结论:
- 可诱导的ABE8e系统为iPSC中精确的基因编辑提供了一个多功能工具.
- 这种方法加速了疾病建模和功能基因组研究.
- 能够有效地在人类多能干细胞中产生复杂的遗传修饰.
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