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工程ARMM用于改善CRISPR-Cas9的细胞内传递

Zunwei Chen¹, Qiyu Wang¹, Quan Lu¹

¹Departments of Environmental Health and Molecular Metabolism, Harvard T.H. Chan School of Public Health, 665 Huntington Ave., Boston, MA 02115, USA.

Extracellular vesicle

|July 11, 2025

概括

这项研究引入了含有阿雷斯域的蛋白质1介导微 (ARMMs),以实现高效的CRISPR-Cas9基因编辑传递. 通过有效地提供基因编辑工具,ARMM显示出治疗阿尔茨海默氏症等遗传疾病的前景.

科学领域:

生物技术是生物技术.
分子生物学分子生物学
基因治疗基因治疗

背景情况:

克里斯普尔-Cas9基因编辑具有治疗潜力,但面临着交付挑战.
细胞外囊泡正在被探索为基因编辑工具的交付工具.

研究的目的:

作为CRISPR-Cas9传递的新平台,研究含阿雷斯域蛋白1介导的微微囊 (ARMMs).
通过使用ARMMs来提高CRISPR-Cas9包装和交付效率.

主要方法:

通过将CRISPR-Cas9与阿雷斯域含有蛋白1 (ARRDC1) 融合而改造CRISPR-Cas9.
使用较短的ARRDC1构造 (sARRDC1) 和膀性口炎病毒糖蛋白 (VSV-G) 来优化ARMM的形成和货物加载.
在U2OS细胞和人类神经元细胞中测试了基因编辑,目标是粉样蛋白前体蛋白 (APP) 基因.

主要成果:

卡斯9与ARRDC1的直接融合使得ARMM能够有效地包装到ARMM中.
sARRDC1的融合和VSV-G的结合显著增强了Cas9的加载和ARMM的芽.
在神经元细胞中实现了高基因编辑效率,减少与阿尔茨海默病相关的致病性粉样.

结论:

ARMMs代表了提供CRISPR-Cas9基因编辑系统的多功能和有效平台.
这种方法在神经退行性疾病和其他遗传性疾病中具有治疗应用的巨大潜力.

关键词:

细胞外囊泡中的细胞外囊泡.基因编辑基因编辑基因组编辑器的编辑器神经退行发生神经退行.非病毒性传递是非病毒性传递.

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