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通过调节小鼠的肠道免疫活动和肠道微生物群来缓解DSS诱导的结肠炎
Gaoqi Ye1,2, Genying Li1, Ziyuan Wang1,2
1Key Laboratory of Geriatric Nutrition and Health (Beijing Technology and Business University), Ministry of Education, Beijing, China.
Molecular nutrition & food research
|September 2, 2025
概括
通过改善肠道屏障功能和促进更健康的肠道微生物群,麦阿维南特胺-C (AVN-C) 有效地减少了小鼠的炎症性肠道疾病 (IBD) 症状. 这种化合物可以作为一种天然的胃肠健康疗法.
科学领域:
- 胃肠病学
- 免疫学
- 微生物学
背景情况:
- 麦甲胺-C (AVN-C) 具有抗炎和抗氧化作用.
- 在炎症性肠道疾病 (IBD) 中,AVN-C的治疗潜力尚未得到充分证实.
- 调查AVN-C对甲 (DSS) 诱导的大肠炎的影响至关重要.
研究的目的:
- 评估AVN-C在小鼠中缓解DSS诱导的大肠炎的疗效.
- 阐明AVN-C的保护作用的潜在机制.
- 探索AVN-C对肠道微生物群和免疫反应的影响.
主要方法:
- 在使用DSS之前和在使用DSS期间,小鼠接受AVN- C治疗以诱导大肠炎.
- 评估了结肠炎症状,肠道屏障完整性和中性粒细胞活性.
- 分析了肠道微生物组成和胆酸代谢.
主要成果:
- AVN-C显著降低了结肠炎的严重程度和肠道屏障损伤.
- 治疗AVN- C减少了中性粒细胞透和中性粒细胞外陷 (NET) 的形成.
- 通过AVN-C调节肠道微生物群,增加有益的细菌 (Firmicutes, Akkermansia) 和减少有害的细菌 (Proteobacteria, Escherichia-Shigella).
- 通过FXR-SHP-NF-κB信号通路调节,AVN-C增强了肠道免疫力和平衡了肠道微生物群.
结论:
- 通过AVN-C显示出对DSS诱导的大肠炎的保护作用.
- AVN-C的益处来自调节中性粒细胞功能,肠道微生物群和胆酸代谢.
- 麦AVN-C为IBD和胃肠道健康提供了潜在的治疗策略.
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