由SLIDER分析的全基因组CRISPR-Cas9屏幕识别了调节TRIM24的抑制器复合体网络
Lalit R Patel1,2,3, Sabrina A Stratton4, Megan McLaughlin5
1Department of Genetics, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
iScience
|July 10, 2023
概括
研究人员确定了TRIM24的关键调节者,TRIM24是一种在许多癌症中过度表达的瘤原蛋白. 这一发现揭示了TRIM24是如何控制的,并为癌症研究提供了新的途径.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 基因组学就是基因组学.
背景情况:
- 致癌蛋白TRIM24在人体瘤中经常过度表达,与患者预后不佳相关.
- 尽管TRIM24很普遍,但很少发生突变或重组等遗传变化,这表明调控机制是其过度表达的关键.
研究的目的:
- 为了确定TRIM24表达的新型调节剂.
- 阐明控制TRIM24在癌症中的监管网络.
主要方法:
- 全基因组的CRISPR-Cas9查与光激活细胞分类 (FACS) 相结合.
- 开发和应用用于CRISPR屏幕分析的SLIDER评分系统.
主要成果:
- 提名了220个TRIM24.24的负调节器.
- 确定了KAP1核心压缩剂,CNOT死亡酶和GID/CTLH E3结合酶复合体作为关键的负调节剂.
- 证明这些复合物的成分的淘汰会导致TRIM24过度表达.
结论:
- 发现了一个控制TRIM24表达的监管网络.
- 确定了TRIM24在癌症中的新型治疗点和生物背景.
- 验证了SLIDER作为基于FACS的CRISPR屏幕分析的广泛适用工具.
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