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通过哺乳动物基因导向的病毒样颗粒进行肌肉特异性基因编辑疗法

Shi-Kun Zhou¹, Jing-Tong Luo¹, Yi-Fang Chen¹

¹School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, P.R. China.

Nature communications

|October 15, 2025

概括

研究人员开发了肌肉特异性病毒样颗粒 (MuVLPs),用于骨肌肉中的向基因编辑. 这一突破为杜申肌肉发育不良 (DMD) 等遗传肌肉疾病提供了有前途的治疗策略.

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:

肌肉的遗传缺陷会导致严重的症状,包括运动障碍和呼吸衰竭.
肌肉疾病的有效基因疗法需要有效地将基因编辑工具系统地传递给骨肌细胞.

研究的目的:

设计肌肉特异性病毒样颗粒 (MuVLPs) 用于系统传递基因编辑工具.
评估MuVLPs在骨肌肉特异性基因编辑和治疗纠正中的有效性,在杜氏肌肉发育不良 (DMD) 鼠标模型中.

主要方法:

利用肌肉融合原体 (Myomaker和Myomerger) 来创建MuVLP.
装载有各种有效载荷的MuVLP,包括Cas9/sgRNA核糖蛋白蛋白 (Cas9 RNPs).
在骨肌细胞中通过膜融合系统地施用MuVLP并评估基因编辑.

主要成果:

MuVLPs成功地将Cas9 RNP传递给骨肌细胞.
实现了骨肌特异性基因编辑,切除了DMD小鼠模型中的突变.
在多个骨肌肉组织中恢复了双氨酸的表达,并改善了运动能力.

结论:

建立了一个新型平台 (MuVLPs),用于精确编辑骨肌肉中的基因.
证明了MuVLP治疗遗传肌肉疾病的治疗潜力,如DMD.
通过MuVLP介导的基因编辑为恢复肌肉功能和改善患者结果提供了一个有希望的策略.

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