在多个视网膜扩展器和器官模型中用于有针对性的转导的反意义寡核酸的磁导传递
Xiuhong Ye1,2, Sihui Chen1,2, Wei Xiong3
1Department of Ophthalmology, The First Affiliated Hospital of Jinan University, Jinan University, Guangzhou, 510632, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|April 25, 2025
概括
磁纳米粒子 (MNP) 改善了基因治疗的反感性寡核酸 (ASO) 输送. 这一新平台提高了ASO在视网膜和内耳器官中的传染效率,有助于疾病治疗研究.
科学领域:
- 生物技术是生物技术.
- 基因治疗 基因治疗
- 纳米医学是一种纳米医学.
背景情况:
- 反感性寡核酸 (ASO) 疗法显示出基因疗法的潜力,但由于不高效的输送和不充分的评估模型而受到影响.
- 针对性的治疗和有效的评估对于推进基于ASO的治疗方法至关重要,特别是对于像视网膜这样的复杂组织.
研究的目的:
- 使用磁纳米粒子 (MNP) 提高反感性寡核酸 (ASO) 的传递效率.
- 在各种临床前模型中评估MNP增强ASO的分布和治疗疗效.
- 建立一个新的MNP-植入器官平台,用于ASO转染和查.
主要方法:
- 磁纳米颗粒 (MNPs) 用于促进ASO传递到视网膜扩展物 (小鼠,) 和人类视网膜/内耳器官.
- 扩展模型被安排为针对特定的视网膜层 (质细胞层 - GCL,光受体层 - PL).
- 一种体外仿生神经雷丁-RPE/胆管-结核复合模型被开发用于动态流量研究.
主要成果:
- MNPs显著改善了ASO透和准,在GCL中达到60%的积累,在光受体中达到72%.
- 通过MNP辅助的ASO-Cy3在人类视网膜 (60%) 和内耳 (70%) 器官中显示出增强的传染效率.
- 开发的MNP-explant-organoid平台成功促进了ASO转染,并实现了有针对性的输送.
结论:
- 该MNP-explant-organoid平台代表了提高ASO交付和转染效率的重大进展.
- 该平台为基因疗法应用提供了强大的治疗查和有针对性的输送策略.
- 这种方法有望开发用于视网膜疾病和潜在的其他疾病的新型基因疗法.
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