使用CRISPR激活快速验证人类多能干细胞中静态基因记者的协议
Youjun Wu1, Aaron Zhong1, Bernny Ramirez1
1The SKI Stem Cell Research Facility, The Center for Stem Cell Biology and Developmental Biology Program, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, NY 10065, USA.
STAR protocols
|November 7, 2025
概括
这项研究引入了快速的CRISPR介导转录激活 (CRISPRa) 工作流程,以验证人类多能干细胞 (hPSCs) 中的记者基因敲定. 这种方法有效地验证了在静态基因位点的记者表达,简化了干细胞研究.
科学领域:
- 干细胞生物学 干细胞生物学
- 基因编辑技术的技术
- 分子生物学分子生物学
背景情况:
- 在人类多能干细胞 (hPSCs) 中验证记者基因 knockins 往往需要复杂的细胞状态过渡来诱导来自静默基因的表达.
- 目前对hPSC中未表达位点的记者敲定蛋白的验证方法耗时且复杂.
- 有效的验证对于推动hPSC研究和应用至关重要.
研究的目的:
- 开发并提出一个快速的工作流程,用于验证hPSC中未表达的loci中的reporter knockins.
- 利用CRISPR介导的转录激活 (CRISPRa) 进行高效的报告员验证.
- 为设计,交付和检测记者基因表达提供详细的协议.
主要方法:
- 使用CRISPR介导的转录激活 (CRISPRa) 进行报告员验证.
- 详细的协议步骤包括单导向RNA (sgRNA) 设计和克隆.
- 证明了CRISPRa传递到记者hPSC和随后的记者基因检测,使用KLF17-GFP记者hPSC作为模型.
主要成果:
- 成功建立了一个快速的工作流程,用于验证hPSC中的reporter knockins.
- 证明了CRISPRa在激活先前沉默的位置上的记者基因表达中的有效性.
- 提供了一个可复制的协议,适用于hPSC中的各种报告系统.
结论:
- 本文介绍的基于CRISPRa的工作流显著加快了hPSC中报告员敲击器的验证.
- 这种方法克服了需要细胞状态转换的传统方法的局限性.
- 该协议为在干细胞生物学中使用记者细胞系工作的研究人员提供了一种简化和高效的工具.
相关概念视频
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 Short...
CRISPR and crRNAs
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
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 Short...
CRISPR/Cas9 Genome Editing
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...


