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可光激活基因编辑器用于实体空间时间控制的基因组编辑

Quan Zou¹, Yi Lu², Bo Qing³

¹Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.

|September 18, 2023

概括

研究人员开发了一种可光激活基因编辑器 (Mag-ABE),用于精确的,光控制的基因组编辑. 这种工具提供了更好的安全性和精度,使得在体内基因编辑的时空控制.

科学领域:

分子生物学分子生物学
基因编辑技术的技术
生物技术是生物技术.

背景情况:

基于CRISPR的基编辑器 (BEs) 可以实现精确的核酸替代,但缺乏时空控制.
控制基础编辑 in vivo 的时间和位置是一个重大的挑战.

研究的目的:

开发一个可光激活基因编辑器 (Mag-ABE) 用于在体内进行时空控制的基因组编辑.
调查Mag-ABE.的编辑偏好和减少旁观者编辑的潜力.
为了证明Mag-ABE在近红外 (NIR) 光激活肝脏编辑中的应用.

主要方法:

由蓝光激活的可光激活基编辑器 (Mag-ABE) 的开发.
在EGFP报告基因和内源基因上测试Mag-ABE活性.
在A4,A5和A6位置评估编辑特异性.
集成Mag-ABE与向上转换纳米粒子用于NIR光激活.
在转基因记者小鼠中使用NIR光进行体内肝脏编辑.

主要成果:

马格-ABE显示了蓝光诱导基编辑活性,用于时空基因调节.
在A4和A5位置上,Mag-ABE显示优先编辑,可能减少旁观者效应.
在转基因小鼠中,通过升级纳米粒子实现了成功的NIR光激活肝脏基编辑.

结论:

可光激活的Mag-ABE提供了前所未有的时空控制在体内基调编辑.
通过尽量减少旁观者编辑,Mag-ABE提供了更高的精度和安全性.
这项技术为先进,可控制的基因组编辑应用提供了一个有前途的平台.

关键词:

在ABE中,ABE是ABE.视觉遗传学视觉遗传学时间空间控制控制.向上转换纳米粒子

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