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Updated: Jan 10, 2026

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一个自我级联的纳米CRISPR促使跨细胞透,以加强基因编辑和瘤杀伤

Chao Liu¹, Yangsong Xu¹, Ning Wang¹

¹Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.

Acta pharmaceutica Sinica. B

|November 28, 2025

概括

这项研究介绍了纳米CRISPR,这是一种新的系统,通过利用跨细胞透来增强固体瘤中的CRISPR/Cas9基因编辑. 这种方法克服了瘤微环境的障碍,提高了治疗效率并降低了毒性.

科学领域:

生物技术是生物技术.
纳米医学是一种纳米医学.
癌症治疗方法癌症治疗方法

背景情况:

克里斯普尔/卡斯9疗法与固体瘤透作斗争,限制基因编辑效率和治疗结果.
针对细胞通路的现有纳米战略由于异构的瘤细胞外基质,显示出有限且不均的有效性.

研究的目的:

开发一种具有自我级联机制的纳米CRISPR系统,用于增强跨细胞透和固体瘤中的基因编辑.
通过克服瘤微环境障碍,提高基于CRISPR/Cas9的癌症治疗的有效性.

主要方法:

在瘤微环境中由矩阵金属化酶2 (MMP2) 激活的具有自我级联性能的工程纳米CRISPR系统.
利用纳米CRISPR启动的跨细胞透来增强细胞吸收和基因编辑.
证明了自放大细胞灭绝和跨细胞透的循环,用于持续的基因编辑和瘤细胞杀死.

主要成果:

在编辑的瘤细胞中,纳米CRISPR实现了高效的跨细胞透和强大的亡.
证明了连续的基因转移和瘤杀死,在连续的循环中具有高效率 (第一轮:85%/84.2%;第二轮:48%/27%).
在异种移植小鼠模型中获得显著的抗瘤疗效 (∼83%) 和生存益处,毒性最小.

结论:

纳米CRISPR系统通过跨细胞透和自我级联亡有效地增强了CRISPR/Cas9抗瘤疗法.
这一策略为克服固体瘤障碍和改进基因编辑基因癌症治疗提供了一个有希望的新范式.

关键词:

细胞灭亡 (apoptosis) 是一种死亡的过程.这就是CRISPR/Cas9的作用.癌症治疗治疗癌症治疗交付系统的交付系统.基因编辑基因编辑一个纳米平台.跨细胞透跨细胞透

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