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磁驱动的高速滚动纳米集群用于增强的CRISPR/Cas9基因组编辑

Huating Kong^1,2, Xia Liu³, Kai Xia⁴

¹Institute of Materiobiology, College of Sciences, Shanghai University, Shanghai 200444, China.

ACS applied materials & interfaces

|November 4, 2025

概括

磁性纳米机器人 (MagCbots) 通过降低细胞内粘度和增强溶酶体逃逸来克服基因编辑传递的挑战. 这种磁性纳米粒子技术改善了CRISPR-Cas9传递,用于先进的基因治疗.

科学领域:

生物医学工程生物医学工程
纳米技术纳米技术
基因治疗基因治疗

背景情况:

基因编辑工具CRISPR/Cas9的细胞内传递受到细胞质粘度和溶酶体捕获的阻碍.
有效的细胞质运输对于有效的基因编辑和治疗应用至关重要.

研究的目的:

开发磁性启动的纳米机器人 (MagCbots) 以提高CRISPR/Cas9.9的细胞内传递.
调查MagCbots导航粘性细胞内环境的能力,并提高基因编辑效率.

主要方法:

制造磁性纳米粒子集群 (Fe3O4),具有可调节的大小和磁性响应.
集成的MagCbots (大约. 200 nm) 通过Fe3O4纳米团和CRISPR-Cas9等离子体之间的静电相互作用.
磁性启动以推动MagCbots在细胞质内,并评估细胞内粘度降低和溶酶体逃逸.

主要成果:

在粘性环境中,MagCbots实现了推进 (0.41μm/s),使粘度降低了50%左右,并使 lysosomal escape 增加了3倍.
纳米机器人的多孔结构提供了高有效载荷容量,并保护了等离子体DNA免受降解.
在各种细胞系中证明了PD1和PLK1基因的高效基因组编辑,包括难以转移的Jurkat T细胞.

结论:

磁驱动的MagCbots为基因编辑组件的活跃细胞内传递提供了有效的解决方案.
这个平台显示了促进基因疗法和其他需要精确细胞内操纵的生物医学应用的巨大潜力.

关键词:

这就是CRISPR/Cas9的作用.离子强度的离子强度磁性纳米粒子集群纳米机器人 (MagCbots) 是一个滚动滚动的滚动粘度粘度粘度粘度粘度

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