在没有DNA断裂的情况下,CRISPR启动了表观遗传编辑,用于在人类细胞中进行可编程的基因沉默
Rithu K Pattali1, Izaiah J Ornelas1, Carolyn D Nguyen1
1Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, California, USA.
bioRxiv : the preprint server for biology
|September 30, 2024
概括
CRISPR的表观遗传编辑通过修改DNA和基因组而不会改变基因组,建立了可遗传的基因沉默. 本协议详细介绍了针对向基因抑制的CRISPRoff交付和评估.
科学领域:
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 基因编辑 基因编辑
背景情况:
- 基于CRISPR的技术彻底改变了可编程基因操纵.
- 表观遗传编辑通过改变DNA和基因组的修饰来提供有针对性的基因扰乱.
- CRISPRoff是一个新的表观遗传编辑器,可以建立DNA甲基化和抑制基因素标记.
研究的目的:
- 描述一种用于将CRISPR从表观遗传编辑器传递的协议.
- 为评估CRISPRoff-mediated基因沉默提供指导.
- 要突出在基因扰乱研究中使用CRISPRoff的考虑因素.
主要方法:
- 通过等离子体DNA转染和mRNA的CRISPRoff传递.
- 在转化的人类细胞系和原发性免疫细胞中应用.
- 使用已确定的方法评估目标基因沉默.
主要成果:
- CRISPRoff在目标促进体中建立了DNA甲基化和抑制质子修饰.
- 暂时的CRISPRoff表达导致通过细胞分裂的遗传性转录抑制.
- 协议适用于各种基于CRISPR的表观遗传编辑技术.
结论:
- CRISPRoff使可编程,可遗传的基因抑制能够在没有DNA断裂的情况下实现.
- 描述的协议有助于在哺乳动物细胞中使用CRISPRoff.
- 这项技术推进了基因调节研究的表观遗传编辑领域.
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