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通过使用基数编辑器跳过DMD外显子45来准杜恩肌肉衰竭

Michael Gapinske¹, Jackson Winter¹, Devyani Swami¹

¹Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.

Molecular therapy. Nucleic acids

|August 28, 2023

概括

基基编辑CRISPR-SKIP通过纠正遗传突变提供了一种新的方法来治疗杜申肌肉衰竭. 这种方法永久跳过了有缺陷的外原体,恢复了双蛋白的表达,并可能改善患者的治疗结果.

科学领域:

遗传学遗传学是一个
分子生物学分子生物学
生物技术是生物技术.

背景情况:

杜氏肌肉发育不良 (DMD) 是一种严重的X相关遗传疾病,由发育不良基因突变引起.
目前对DMD的治疗主要集中在症状管理上,强调了基因治疗的必要性.
基因编辑为直接纠正基因组DNA突变提供了一个有希望的策略.

研究的目的:

评估CRISPR-SKIP基编辑对纠正DMD突变的有效性.
为了证明CRISPR-SKIP的潜力,以恢复双素的表达.
评估AAV提供的DMD基础编辑器的体内治疗潜力.

主要方法:

开发并应用CRISPR-SKIP,一种基编辑策略,通过准DMD基因中的拼接受体来诱导外显子跳转.
使用了AAV提供的分割内因基编辑器来准DMD外显子45的拼接受体.
在培养的人类细胞和体内模型中测试了该系统.

主要成果:

克里斯普尔-SKIP有效地破坏了人类DMD前体45的拼接受体,使开放的读取框架恢复成为可能.
通过这种向的外因子跳转,可以恢复双氨酸表达.
通过AAV提供的基编辑器在细胞和体内环境中成功编辑了DMD外原体45拼接受体.

结论:

CRISPR-SKIP基编辑是一种可行的治疗策略,用于特定形式的杜氏肌肉发育不良.
这种方法提供了一种直接的基因校正方法,通过诱导永久的外因子跳转.
由AAV提供的基准编辑器在DMD治疗中显示出显著的治疗潜力.

关键词:

在 AAV AAV AAV 中.克里斯普尔-Cas9是什么意思杜申尼肌肉发育不良症是什么 MT:编辑RNA/DNA的方法基编辑基编辑编辑cytidine基的编辑突出跳过的突出跳过基因编辑基因编辑

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