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Updated: Apr 28, 2026

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使用CRISPR-Cas9系统生成一个RIP1淘汰U937细胞系

Matthew A Deragon¹, H John Sharifi², Timothy J LaRocca³

¹Department of Life Sciences, Albany College of Pharmacy and Health Sciences.

Journal of visualized experiments : JoVE

|April 28, 2025

概括

研究人员开发了一种CRISPR/Cas9方法,以淘汰U937细胞中的RIP1基因,在诱导亡后显著减少细胞死亡和线粒体反应性氧物种 (ROS).

科学领域:

分子生物学分子生物学
细胞生物学细胞生物学
免疫学免疫学免疫学

背景情况:

受体相互作用蛋白激酶1 (RIP1) 是编程细胞死亡途径的关键调解者,包括亡.
了解RIP1的作用需要强大的遗传工具来产生功能性研究的淘汰细胞系.

研究的目的:

在人类单细胞U937细胞系中建立可靠的CRISPR/Cas9协议用于RIP1基因淘汰.
为了验证RIP1损失对细胞死亡和线粒体活动的功能后果.

主要方法:

利用CRISPR/Cas9技术与特定导向RNA和lentiviral载体用于U937细胞中的基因编辑.
进行了亡诱导试验并测量了细胞活力.
使用光显微镜评估线粒体的活性氧物种 (ROS) 生产.

主要成果:

成功生成了具有RIP1基因淘汰的U937细胞,通过功能测试证实了这一点.
在RIP1淘汰赛细胞中,在诱导亡时显著减少细胞死亡.
淘汰赛细胞在死细胞条件下显示线粒体ROS生成减少.

结论:

开发的CRISPR/Cas9协议有效地使U937细胞中的RIP1基因失活.
失去 RIP1 功能,使其对死细胞灭绝产生抗性,并降低了与此相关的线粒体 ROS 生产.
这种方法为研究RIP1介导的细胞死亡提供了有价值的工具,并且可以适应其他细胞死亡调节剂.

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