在人类多能干细胞衍生肠道组织中模拟的巨细胞的发育作用
Andrew T Song1, Renata H M Sindeaux2, Yuanyi Li3
1Centre de Recherche, CHU Sainte-Justine, Montréal, QC, Canada; Department of Anatomy and Cell Biology, McGill University, Montréal, QC, Canada.
Cell reports
|December 27, 2023
概括
在人类发育中的肠道内居住的巨细胞通过减少细胞代谢来限制组织的生长. 这项研究设计了一个有机体模型,以探索巨细胞在肠道发育中的作用.
科学领域:
- 发育生物学是发展生物学.
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 巨细胞存在于胚胎发育的早期,但它们在器官生成,特别是肠道发育中的特定作用尚不清楚.
- 研究巨细胞在发育中的人类肠道中的功能对于理解正常的肠道形成和潜在的发育障碍至关重要.
研究的目的:
- 设计一种由多能干细胞衍生的巨细胞组成的人类肠道有机体模型.
- 阐明巨细胞在人类肠道发育过程中的生长和新陈代谢的规范,功能和调节中的作用.
主要方法:
- 从多能干细胞中提取人类肠道有机体和巨细胞.
- 器官和巨的共同培养,以创建人类发育模型.
- 转录形状分析以表征巨细胞的身份和功能.
- 评估巨细胞对介质细胞代谢和组织生长的影响.
主要成果:
- 工程巨细胞成功地迁移到并填充了肠道有机体,占据了关键的利基.
- 巨细胞获得了类似于胎儿肠道巨细胞的转录形状,并表现出特定于组织的行为.
- 巨细胞减少了介质细胞中的糖解,导致受限的组织生长,而不会改变组织结构.
- 与肠道神经元相比,巨细胞对正在发育的肠道表现出增长限制作用.
结论:
- 成功开发了一种与巨细胞共同培养的新型人类肠道有机体模型.
- 居民巨细胞在调节人类发育中的肠道代谢和生长方面发挥着重要作用.
- 巨细胞起到抑制肠道组织扩张的作用,平衡肠道神经元等其他细胞类型的促生长信号.
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