通过可吸入的CRISPR/Cas9配方对Spp1进行基因组编辑,用于治疗肺纤维化
Weiwei Bao1, Peng Ji2, WenSong Xi3
1College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
概括
这项研究介绍了一种可吸入的基因编辑疗法,使用纳米颗粒来向分泌蛋白1 (Spp1) 用于治疗异常性肺纤维化 (IPF). 在小鼠模型中,治疗有效降低了纤维化和改善了肺功能.
科学领域:
- 生物医学工程 生物医学工程
- 基因治疗 基因治疗
- 肺部医学 肺部医学
背景情况:
- 异形性肺纤维化 (IPF) 是一种渐进的肺部疾病.
- 分泌的蛋白1 (Spp1),编码骨质素 (OPN),涉及到IPF的致病性.
- 目前的IPF治疗有效性有限.
研究的目的:
- 开发和评估一个可吸入的基因编辑系统,针对Spp1治疗IPF.
- 研究通过纳米粒子传递的CRISPR/Cas9的治疗潜力.
主要方法:
- 酸/多-乳-co-甘油酸 (PLGA) 核心外纳米颗粒的配方,封装CRISPR/Cas9,准Spp1.1.
- 通过吸入将CaP/Cas9/PLGA系统输入纤维化肺部.
- 对基因编辑效率,Spp1/OPN下调和治疗效应的评估,在白血素诱导的肺纤维化小鼠模型中.
主要成果:
- 这些CaP/Cas9/PLGA纳米颗粒有效地穿越了粘膜屏障,并被肺细胞以最小的细胞毒性内化.
- 在CRISPR/Cas9中介的Spp1基因中断时,突变频率>30%,导致有效的OPN下调.
- 在小鼠中,吸入基因编辑系统显著减轻了肺纤维化和改善了肺功能,没有可检测的全身毒性.
结论:
- 成功开发了一种创新的可吸入基因编辑配方 (CaP/Cas9/PLGA).
- 这种配方通过向Spp1.1来治疗异常性肺纤维化,显示出显著的治疗潜力.
- 这代表了IPF有前途的新基因治疗策略.
相关概念视频
CRISPR
57.4K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
57.4K
CRISPR/Cas9 Genome Editing
1.6K
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
1.6K


