当Caco-2细胞暴露于模拟的微重力时,托芬代谢物会发生变化
Giulia Tolle1, Amalia Di Petrillo2, Massimo Claudio Fantini2
1Department of Life and Environmental Sciences, University of Cagliari, 09012, Monserrato, Cagliari, Italy.
Life sciences in space research
|August 7, 2025
概括
模拟微重力改变了肠道细胞中的托代谢和血清的产生,特别是当与DSS和LPS等炎症剂相结合时. 这会影响太空任务期间的肠道调节.
科学领域:
- 细胞生物学 细胞生物学
- 太空医学 太空医学
- 微生物学 微生物学
背景情况:
- 微重力扰乱细胞代谢,影响像托代谢这样的途径.
- 肠道细胞在调节胃肠功能方面发挥着关键作用.
- 血清素是一种关键的神经递质,受托代谢的影响.
研究的目的:
- 研究模拟微重力对Caco-2肠道细胞中托代谢和血清素生产的影响.
- 评估微重力,炎症因子 (DSS,LPS) 和微生物群对肠道细胞的综合影响.
- 了解太空飞行期间胃肠道失调背后的潜在机制.
主要方法:
- 利用模拟的微重力条件.
- 暴露的Caco-2细胞暴露在硫酸 (DSS) 和脂多糖 (LPS) 中.
- 采用向液体染色学-并联质谱法 (LC-MS/MS) 进行代谢物分析.
- 与人类便样本共同培养细胞,以纳入微生物群衍生因素.
主要成果:
- 模拟的微重力显著改变了托代谢物,增加了血清素和林酸水平.
- 在微重力下的DSS治疗增加了血清素,氨酸和氨酸的含量.
- 与微重力相结合的LPS治疗显著增加了林酸.
- 在微重力下与便样本共同培养显示了血清激素和氨酸的增加.
结论:
- 微重力,特别是与炎症刺激,调节肠道细胞中血清的合成.
- 这些发现表明,在太空任务期间,微重力,炎症和肠道功能改变之间存在联系.
- 需要进一步的研究,以充分阐明对宇航员健康和胃肠道调节的影响.
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