猪味道 细胞衍生器官 合成胰岛素
Hasitha U Premathilake1, Caio H Mazucanti1, Qin Yao1
1Laboratory of Clinical Investigation, National Institute on Aging, Intramural Research Program, National Institutes of Health, Baltimore, MD 21224, USA.
Endocrinology
|August 4, 2025
概括
研究人员开发了猪口味有机体,以保持细胞多样性. 这些有机体可以模拟非葡萄糖调节的胰岛素生产及其作为味觉受体细胞中热因的作用.
科学领域:
- 机器人种植文化 机器人种植
- 味觉生物学 味觉生物学
- 内分泌学 在内分泌学.
背景情况:
- 味蕾含有多种细胞类型,包括味觉干细胞和味觉受体细胞 (TRC).
- 了解TRC的差异化和功能对于品味研究至关重要.
- 胰岛素在葡萄糖调节之外的作用是一个新兴的研究领域.
研究的目的:
- 从猪叶酸味蕾建立一个长期的有机体培养模型.
- 为了研究这些有机体中味觉干细胞和TRC标记物的表达.
- 探索胰岛素在味道器官增殖,分化和胰岛素生产中的作用.
主要方法:
- 来自猪叶状味蕾的有机培养.
- 长期维护和有机体的表征超过18个通道.
- 对味觉干细胞标记物 (LGR4,LGR6,SOX2) 和TRC标记物 (细胞卡素20,ENTPD2,GNAT3,OTOP1) 的分析.
- 评估胰岛素对增殖和分化的必要性.
- 在TRC中研究胰岛素和转录因子表达 (MAFA,PAX4,PDX-1).
- 优化TRC表达和胰岛素生产的差异化条件.
- 使用cAMP刺激胰岛素的产生.
主要成果:
- 猪味道有机体保留了细胞异质性,并表达了关键的味道干细胞和TRC标记物.
- 胰岛素对于最佳的有机体增殖和分化至关重要.
- 一些TRC表达了胰岛素和转录因子MAFA和PAX4,但没有PDX-1.
- 在优化条件下,胰岛素蛋白质含量增加了6.5倍.
- 胰岛素的产生对cAMP刺激有反应.
结论:
- 建立了一个强大的猪味道有机体模型,保持细胞异质性和关键标记物.
- 这些有机体为研究味道干细胞动态和TRC分化提供了可再生系统.
- 这些发现表明,胰腺外,非葡萄糖调节的胰岛素作为味蕾中的营养因子可能发挥作用.
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