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为内源基因激活产生可诱导的dCas9-SAM人类PSC线的生成

Paolo Petazzi¹, Francisco Gutierrez-Agüera¹, Heleia Roca-Ho¹

¹Josep Carreras Leukemia Research Institute, Campus Clinic-UB, Casanova 143, Barcelona, Spain.

Frontiers in cell and developmental biology

|December 16, 2024

概括

研究人员使用可诱导的CRISPR/Cas9激活器开发了H9人类多能干细胞 (hPSC). 这些细胞能够精确控制发育生物学和细胞治疗应用中的基因表达.

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:

克里斯普尔/卡斯9技术彻底改变了基因组编辑.
先进的CRISPR工具,如基础和主要编辑,扩展了它的应用.
催化死Cas9 (dCas9) 融合调节基因表达.

研究的目的:

开发一种具有诱导性转录激活的人类多能干细胞系.
用可诱导多克西环素的dCas9-SAM激活剂对H9细胞进行工程.
为了验证工程细胞系的功能性和多能性.

主要方法:

针对性地将可诱导的CRISPR/Cas9基因激活器磁带集成到AAVS1安全港位.
分子分析以确认精确的整合和最小的非目标效应.
功能性特征包括多能测试和定向差异化.

主要成果:

成功生成了H9可诱导的Cas9-SAM (H9-iCas9.SAM) 人类多能干细胞系.
确认了基因激活剂磁带的精确和特定集成.
在多西环林治疗时,已证明可诱导的内源基因激活.
证实了多能性的保留和成功分化为外皮,中皮和内皮血统.

结论:

H9-iCas9.SAM细胞系为诱导性基因激活提供了一个多功能平台.
这种工程细胞系适合在发育生物学中研究基因功能.
它在推进细胞治疗应用方面具有显著的潜力.

关键词:

AAVS1安全港的位置.这就是ISAM的意义.死亡-Cas9激活方式基因表达的基因表达方式人类PSCs的人类PSCs

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相关概念视频

CRISPR/Cas9 Genome Editing

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...