作为创始转录因子,Tcf21在指定Foxd1细胞的过程中被纳入了柔合细胞细胞系
Hina Anjum1, Jason P Smith2, Alexandre G Martini2
1Division of Pediatric Nephrology, Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, United States.
American journal of physiology. Renal physiology
|November 26, 2024
概括
转录因子Tcf21对于将叉头盒D1-阳性 (Foxd1+) 先生细胞分化为表达蛋白的正细胞 (JG) 细胞至关重要. 在早期发育过程中,TCF21起着至关重要的作用,影响细胞的出现和动脉形态.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 发展生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 列宁表达的柔合体细胞 (JG) 对于血压调节至关重要.
- 福克斯d1阳性 (Foxd1+) stromal 先生的JG细胞的分化尚未完全理解.
- 众所周知,转录因子TCF21对脏发育至关重要.
研究的目的:
- 研究Tcf21在Foxd1+原始细胞分化成JG细胞中的作用.
- 确定JG细胞系发育过程中Tcf21表达的时间动态.
- 阐明控制JG细胞分化的分子机制.
主要方法:
- 使用了Foxd1和Ren1小鼠模型.
- 进行了免疫染色和现场杂交,以评估蛋白表达和形态.
- 在Foxd1+细胞上进行了集成单细胞RNA测序 (scRNA-seq) 和scATAC-seq分析.
- 采用伪时间轨迹和图案丰富分析.
主要成果:
- 在Foxd1+细胞中TCF21的失活导致了氨酸阳性区域的减少和变化的 afferent动脉状动脉形态.
- 在已建立的氨酸表达细胞中TCF21无活化并没有影响表型.
- Tcf21表达在早期发育阶段 (胚胎12日) 达到顶峰,并且随着细胞成熟而下降.
- scRNA-seq和scATAC-seq数据显示TCf21在脏早期发育中的重要参与.
结论:
- 在早期发育过程中,Tcf21对Foxd1+原始细胞分化为JG细胞至关重要.
- Tcf21的作用主要是对表达氨酸的JG细胞的特异化,而不是维持已建立的身份.
- 这些发现为JG细胞分化和脏发育的分子调节提供了洞察力.
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