人体内分泌细胞的高分辨率mRNA和秘密图谱
Joep Beumer1, Jens Puschhof1, Julia Bauzá-Martinez2
1Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and UMC Utrecht, 3584 CT Utrecht, the Netherlands; Oncode Institute, Hubrecht Institute, 3584 CT Utrecht, the Netherlands.
Cell
|May 15, 2020
概括
研究人员开发了一个新的器官平台来研究人类肠内分泌细胞 (EEC). 这种系统揭示了人类和小鼠之间的EEC的关键差异,为肠道激素的调节和功能提供了洞察力.
科学领域:
- 胃肠病学
- 内分泌学
- 细胞生物学
背景情况:
- 肠内分泌细胞对于感知营养和调节消化,新陈代谢和食欲至关重要.
- 了解人类的EEC亚型和荷尔蒙分泌是有限的.
- 现有的模型无法完全捕捉到人类的经济复杂性.
研究的目的:
- 建立一个用于研究人类EEC的体外平台.
- 描述人类EEC亚型的分子和功能性质.
- 调查欧洲共同体内部的通信,并确定新的信号分子.
主要方法:
- 人类肠道器官系统的发展.
- 使用NEUROG3表达式诱导EEC的形成.
- 在有机体内光标记主要的荷尔蒙.
- 单细胞mRNA测序用于图谱生成.
- 分析分泌产物的质谱学.
主要成果:
- 人类EEC亚型的详细单细胞mRNA地图.
- 确定人类和小鼠EEC之间的关键差异 (荷尔蒙,受体,转录因子).
- 发现了几种新的类似激素的分子.
- 证明了欧共体间的沟通,例如,GLP-1的分泌引起的分泌.
- 证据表明EEC亚型具有各种EEC激素的受体.
结论:
- 这种器官平台可以对人体EEC进行功能研究.
- 这项工作为了解人类的发展和功能提供了宝贵的资源.
- 揭示了特定物种EEC的显著差异, 影响我们对肠-大脑轴信号的理解.
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