人类血管器官发育过程中的命运和状态过渡
Marina T Nikolova1, Zhisong He1, Makiko Seimiya1
1Department of Biosystems Science and Engineering, ETH Zurich, Basel, Switzerland.
Cell
|April 18, 2025
概括
人体血管器官 (hBVO) 通过重建细胞命运规范来模拟血管发育. 这项研究确定了关键的转录因子和途径,增强了hBVO用于疾病建模和转化研究.
科学领域:
- 发育生物学
- 干细胞生物学
- 血管生物学
背景情况:
- 人体血管器官 (hBVO) 是研究人类血管发育和疾病的有价值模型.
- 了解hBVO细胞命运规范的复杂过程对于它们的有效应用至关重要.
研究的目的:
- 通过单细胞多组和遗传干扰重建hBVO的发育轨迹.
- 确定控制内皮细胞和壁细胞命运规范的关键转录因子和信号通路.
- 评估HBVO在模拟器官类型血管状况和糖尿病等疾病方面的潜力.
主要方法:
- 单细胞多基因组学 (基因组学,转录基因组学) 分析HBVO的发展情况.
- 研究基因调节网络的遗传和信号通路干扰.
- 用于评估体内分化和细胞特异性的异种移植.
- 计算分析以推断基因调节网络并识别关键调节者.
主要成果:
- 在hBVO中,中皮原体分化为内皮细胞和壁细胞,异种器官获得了最终的动脉静脉特异性.
- 推断出基因调节网络,确定MECOM是内皮细胞和壁细胞特异性的关键转录因子.
- 过度表达LEF1增强了hBVO脑血管的特异性,并将血管疾病基因映射到特定的hBVO细胞状态.
- 对糖尿病的hBVO模型进行了分析,证明了它们在疾病建模中的有用性.
结论:
- 这项研究为hBVO发育提供了全面的细胞状态图谱,揭示了血管细胞命运的关键调节者.
- hBVO 显示出对器官类型血管状况和血管疾病的显著潜力.
- 这些发现揭示了hBVO在推进转化血管研究方面的力量和局限性.
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