曼诺斯控制了小鼠胃类动物中中皮的规格和对称性破坏
Chaitanya Dingare1, Dominica Cao2, Jenny Jingni Yang1
1Deptartment of Genetics, University of Cambridge, Downing Site, Cambridge CB2 3EH, UK.
Developmental cell
|April 18, 2024
概括
曼诺,而不是葡萄糖,对于早期胚胎中皮层发育至关重要. 这项研究揭示了曼诺斯如何通过影响蛋白质甘化来控制小鼠胃中的中皮特异性.
科学领域:
- 发展生物学 发展生物学
- 代谢调节 代谢调节 代谢调节 代谢调节
- 干细胞生物学 干细胞生物学
背景情况:
- 胚胎发育依赖于精确的模式和生长.
- 代谢途径显著影响早期发育过程.
- 鼠类胃体提供了一个研究早期中皮层形成的模型.
研究的目的:
- 调查新陈代谢,特别是葡萄糖和曼诺糖在中皮早期发育中的作用.
- 阐明代谢变化影响胚胎模式的机制.
- 了解曼诺斯在胃类细胞发育过程中对蛋白质糖化酶的影响.
主要方法:
- 使用了来自小鼠胚胎干细胞的胃素.
- 服用的葡萄糖模仿了2-脱氧-D-葡萄糖 (2-DG) 和曼诺糖.
- 分析了T/Bra表达和轴延长.
- 进行蛋白质组学分析以评估蛋白质糖化.
- 研究了曼诺斯的生产和细胞内循环.
主要成果:
- 2-脱氧-D-葡萄糖 (2-DG) 抑制了中皮标记物T/Bra表达和轴延长.
- 曼诺斯补充剂挽救了由2-DG引起的中皮特征缺陷.
- 阻断曼诺斯的生产或回收废除了中皮层的规格.
- 蛋白质组学揭示了曼诺斯逆转了Wnt通路调节者的糖化,分泌了色受体Frzb.
结论:
- 曼诺斯,而不是葡萄糖,对于小鼠胃类动物中早期的中皮特异性至关重要.
- 曼诺斯通过其在蛋白质糖化中的作用来控制半皮体的发育,影响像Wnt.这样的关键信号通路.
- 这项研究突出了胚胎发育中的新型代谢检查点.
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