基于可扩展成像的CRISPR扰动的分析,使用蛋白质条形码进行分析
Krishna Choudhary1, Michael T McManus2,3,4,1,5
1UCSF Diabetes Center, University of California, San Francisco, San Francisco, CA 94143, United States of America.
bioRxiv : the preprint server for biology
|November 26, 2025
概括
本研究介绍了poolVis和cellPool,这是一个使用蛋白质条形码进行高内容功能基因组学的新平台. 它克服了以前的局限性,使得在遗传干扰后能够有效和准确地分析细胞表型.
科学领域:
- 基因组学就是基因组学.
- 细胞生物学 细胞生物学
- 生物信息学是一种生物信息学.
背景情况:
- 基于成像的CRISPR屏幕对于功能基因组学来说非常强大.
- 蛋白质条形码为聚合扰动提供了具有成本效益的,与成像兼容的条形码.
- 由于复杂的克隆和解码,现有的方法面临着可扩展性挑战.
研究的目的:
- 推出poolVis和cellPool,一个集成的实验和计算平台.
- 克服基于蛋白质条形码的CRISPR屏幕的可扩展性和可靠性的局限性.
- 为了实现高内容的功能基因组学,提高效率和准确性.
主要方法:
- poolVis利用Cre-lox介导的重新配置,在病毒集成过程中实现高效的条形码-sgRNA配对.
- cellPool采用可扩展的计算工作流来解码来自大型图像数据集的蛋白质条形码.
- 该平台应用于在MCF10A细胞中进行CRISPR干扰 (CRISPRi) 分析.
主要成果:
- 在聚合克隆和交付过程中减少了条码混.
- 从多兆字节数据集生成未聚合的图像画廊.
- 发现已知和新型表型,包括核形态变化和DNA损伤表现.
结论:
- 池Vis和cellPool平台显著提高了基于蛋白质条形码的CRISPR屏幕的可扩展性和可靠性.
- 这种综合方法促进了高内容的功能基因组学和复杂细胞表型的发现.
- 这些发现推动了对基因功能和细胞对遗传干扰的反应的研究.
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...


