相关实验视频

Updated: Jun 2, 2025

Lentiviral Vector Platform for the Efficient Delivery of Epigenome-editing Tools into Human Induced Pluripotent Stem Cell-derived Disease Models

Lentiviral Vector Platform for the Efficient Delivery of Epigenome-editing Tools into Human Induced Pluripotent Stem Cell-derived Disease Models

Published on: March 29, 2019

向RNA的CRISPR/CasRx系统缓解了亨廷顿病模型中的疾病症状

Yingqi Lin¹, Caijuan Li¹, Yizhi Chen¹

¹Guangdong Key Laboratory of Non-Human Primate Research, Key Laboratory of CNS Regeneration (Ministry of Education), School of Medicine, GHM Institute of CNS Regeneration, Jinan University, Guangzhou, 510632, China.

Molecular neurodegeneration

|January 13, 2025

概括

在HD模型中,CRISPR/CasRx基因编辑有效地使突变的亨廷丁 (HTT) mRNA沉默,减少有毒蛋白质的表达和改善疾病病理. 这种针对RNA的方法对治疗亨廷顿病 (HD) 和其他遗传性疾病有很大的前景.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
生物技术是生物技术.

背景情况:

亨廷顿病 (HD) 是一种致命的神经退行性疾病,源于亨廷丁 (HTT) 基因的CAG重复扩张.
抑制突变HTT的表达是HD的关键治疗策略.
CRISPR/CasRx基因编辑技术为HD治疗干预提供了一种新的方法.

研究的目的:

评估CRISPR/CasRx系统在向和减少突变亨廷丁 (HTT) mRNA表达方面的有效性.
评估CRISPR/CasRx介导的HTT在HD细胞和动物模型中的治疗效果.
研究这种基因编辑策略对HD模型中神经病理变化和运动功能的影响.

主要方法:

使用CRISPR/CasRx系统准人类HTT外体1以实现有效的mRNA淘汰.
在HEK 293T细胞,HD 140Q-KI小鼠模型和HD-KI猪模型中进行了实验.
通过Western blot和RT-qPCR量化了淘汰效率;通过Western blot,免疫染和RNA测序评估了神经病理;行为测试评估了运动功能.

主要成果:

在所有测试模型 (HEK 293T细胞,HD 140Q-KI小鼠,HD-KI猪) 中,CRISPR/CasRx显著降低了HTT mRNA水平和突变HTT (mHTT) 表达.
该系统改善了HD 140Q-KI小鼠的质.
在接受CRISPR/CasRx.治疗的HD-KI猪中,神经退行延迟了.

结论:

向RNA的CRISPR/CasRx证明了亨廷顿病 (HD) 的显著治疗潜力.
这项研究验证了CRISPR/CasRx作为减少致病基因表达的有效策略.
这些发现为HD和其他由特定基因突变引起的遗传疾病开辟了新的治疗途径.

关键词:

HTT HTT 这样就好了.这就是CRISPR/CasRx.HD-KI猪猪是什么意思亨廷顿病就是亨廷顿病.

更多相关视频

Adeno-Associated Virus-Mediated Delivery of CRISPR for Cardiac Gene Editing in Mice

Adeno-Associated Virus-Mediated Delivery of CRISPR for Cardiac Gene Editing in Mice

Published on: August 2, 2018

Ubiquitous and Tissue-specific RNA Targeting in Drosophila Melanogaster using CRISPR/CasRx

Ubiquitous and Tissue-specific RNA Targeting in Drosophila Melanogaster using CRISPR/CasRx

Published on: February 5, 2021

相关概念视频

CRISPR

CRISPR

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...