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利用时间Wnt信号在机体模型中有效分化肠道干细胞

Li Yang^1,2,3, Xulei Wang¹, Guoqing Zhao¹

¹Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, School of Life Sciences and Technology, Tongji University, Shanghai, China.

Stem cells and development

|October 28, 2023

概括

在Notch通路失活后,Wnt信号暴露的持续时间决定了肠干细胞 (ISC) 分化为特定的细胞类型. 这种时间控制能够有效地在体外产生肠内分泌细胞 (EEC) 和杯状细胞.

科学领域:

胃肠病学和肝病学胃肠学和肝病学
发展生物学发展生物学
干细胞生物学干细胞生物学

背景情况:

肠上皮质平衡取决于肠干细胞 (ISC).
像Wnt,BMP,Notch和MAPK这样的信号通路调节ISC的自我更新和差异化.
在ISC差异化中,这些信号通路的精确时间动态尚不完全理解.

研究的目的:

研究ISC差异化中的Wnt信号的时间调节.
确定Wnt暴露时间如何影响肠道有机体中的细胞命运决定.
开发优化的协议,以实验室分化ISCs.

主要方法:

使用肠道器官系统来模拟ISC分化.
在Notch路径不活化后操纵的Wnt信号持续时间.
量化分化成各种分泌细胞类型,包括杯状细胞和肠内分泌细胞 (EECs).

主要成果:

Wnt信号曝光的持续时间显著影响ISC差异化方向.
特定的Wnt暴露时间促进对杯细胞,EEC和Paneth细胞的分化.
为了有效地在实验室中将ISC分化为EEC和杯状细胞,建立了优化的协议.

结论:

Wnt信号的时间调节是ISC差异化的一个关键因素.
这项研究为控制细胞命运的复杂利基信号提供了新的理解层.
这些发现为研究肠道生物学和开发治疗策略提供了宝贵的平台.

关键词:

没有信号发送.不同化的差异化差异化.肠内分泌细胞细胞的内分泌细胞.玻璃杯细胞玻璃杯细胞肠道干细胞是什么?肠道干细胞是什么?

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