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使用scTF-seqq剖析转录因子剂量对细胞重编程异质性的影响
Wangjie Liu1,2, Wouter Saelens1,2,3,4, Pernille Rainer1,2
1Laboratory of Systems Biology and Genetics, Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
我们开发了单细胞转录因子测序 (scTF-seq),以了解细胞重编程. 这种方法揭示了转录因子剂量如何影响细胞命运和异质性,推进基因调节和细胞工程.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 细胞生物学 细胞生物学
背景情况:
- 细胞重编程往往会导致不同的细胞命运,其潜在机制不太了解.
- 了解转录因子 (TF) 功能对于控制细胞命运和重编程结果至关重要.
研究的目的:
- 开发和应用一种新的单细胞技术,scTF-seq,用于剖析TF功能和重编程中的剂量依赖效应.
- 为小鼠TFs创建一个全面的功能获取地图,并分析它们对细胞命运决定的影响.
主要方法:
- 开发了单细胞转录因子测序 (scTF-seq),一种用于条码,多西环素诱导TF过度表达和转录组分析的方法.
- 将scTF-seq应用于小鼠胚胎多能 stromal 细胞,以生成TF功能获取图谱.
- 在单细胞分辨率下分析了TF剂量依赖的转录组变化和细胞状态转换.
主要成果:
- 为384只小鼠的TF生成了一个功能获取地图,确定了谱系规范和细胞周期控制的关键调节者.
- 揭示了TF剂量如何塑造重编程异质性,揭示了剂量依赖和随机细胞状态过渡.
- 根据容量和剂量灵敏度对TF进行分类,并根据相对TF剂量证明了上下文依赖的TF相互作用 (协同作用到对抗作用).
结论:
- 在重新编程过程中,scTF-seq可实现TF功能,剂量和细胞命运控制的高分辨率剖析.
- 为理解和预测重编程结果提供了一个框架,这对于基因调节研究至关重要.
- 通过提供关于精确控制细胞命运决定的见解,推进细胞工程策略.
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