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铁制约的CRISPR/Cas9-核核蛋白传递系统用于对Redox敏感基因编辑

Lingling Qiu¹, Minmin Sun¹, Lei Chen²

¹College of Animal Science and Technology, Yangzhou University, Yangzhou, 225009, China.

Small (Weinheim an der Bergstrasse, Germany)

|February 25, 2024

概括

一个新的铁协调脂质体系统有效地提供了CRISPR/Cas9基因编辑工具. 这种方法增强了细胞吸收和基因编辑,克服了遗传疾病治疗的传递挑战.

科学领域:

生物技术是生物技术.
分子生物学分子生物学
基因编辑技术的技术

背景情况:

CRISPR-Cas9是一种具有治疗潜力的强大基因编辑工具.
将CRISPR-Cas9组件安全有效地输送到细胞仍然是临床应用的重大挑战.

研究的目的:

为CRISPR-Cas9核糖蛋白 (RNP) 复合体开发一种简单的,可回氧反应的输送系统.
为了提高CRISPR-Cas9的细胞吸收,稳定性和编辑效率,同时最大限度地降低细胞毒性.

主要方法:

通过协调Fe3+与Cas9蛋白形成铁协调RNP (Fe-RNP).
在脂质体内封装Fe-RNP (Fe-RNP@L),以创建一个新的输送载体.
评估RNP释放,细胞吸收机制,稳定性,细胞毒性和基因编辑效率.

主要成果:

Fe-RNP@L系统通过内分细胞和胆固醇依赖的膜融合证明了细胞吸收的改变.
在对谷氨的反应中实现了功能性RNP的快速和可逆释放.
观察到高细胞质/核传递效率 (≈90%) 和基因编辑效率 (≈70%),即使在低度.
铁协调改善了RNP的稳定性,降低了细胞毒性.

结论:

Fe-RNP@L系统为安全有效的CRISPR-Cas9传递提供了一个有前途的解决方案.
这种交付策略增强了基因编辑结果,并为各种基因组应用和临床翻译提供了潜力.

关键词:

这就是CRISPR/Cas9的作用.这是GSH-响应的响应.基因编辑基因编辑铁-协调聚合铁-协调聚合非病毒性分娩是一种非病毒性分娩.

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