染色体景观指导精确的转录因子规律在胚胎谱系规范期间
Liping Wang1, Shanru Yi2, Xinyu Cui3
1Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200072, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China.
Cell reports
|April 21, 2024
概括
在小鼠胚胎发育期间的转录因子AP-2玛 (TFAP2C) 动态揭示了它在维持细胞身份方面的作用. 像H3K9me3这样的表观遗传修饰会对抗TFAP2C结合,调节基因表达和细胞命运.
科学领域:
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 基因组学就是基因组学.
背景情况:
- 胚胎发育涉及复杂的转录,转化和代谢变化.
- 染色体调节剂,包括转录因子 (TF),对于调节这些动态过程至关重要.
- 热细胞调节剂TFAP2C对于早期的细胞命运决定至关重要,但在血统建立后仍然存在.
研究的目的:
- 为了研究TFAP2C在小鼠周植入期间的动态.
- 阐明TFAP2C与血统监管机构CDX2和NANOG之间的合作.
- 了解调节TFAP2C功能和胚胎细胞命运的表观遗传机制.
主要方法:
- 在外植入阶段对小鼠胚胎TFAP2C动态的分析.
- 研究TFAP2C与CDX2和NANOG的相互作用.
- 检查H3K9me3形成及其对TFAP2C结合发育基因的影响.
主要成果:
- 在周植入期间,TFAP2C表现出动态表达模式.
- 在调节血统身份方面,TFAP2C与CDX2和NANOG合作.
- 在胚胎外外皮中新生H3K9me3形成对抗TFAP2C结合,保持血统身份.
结论:
- TFAP2C在维持细胞谱系身份的建立后起着至关重要的作用.
- 表观遗传修饰,特别是H3K9me3,可以动态调节TFAP2C的基因组结合.
- 染色体可塑性对于指导TF结合和调节胚胎细胞命运至关重要.
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