迪奥斯梅丁通过减少结肠上皮细胞中ABCG2的表达来维持屏障完整性
Jinfan Liu1, Lu Fu1, Fei Yin1,2
1Chongqing Key Laboratory of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China.
迪奥斯梅丁通过减少炎症和增强紧密结合蛋白来改善克罗恩病模型中的肠道屏障功能. 它通过AMPK/AKT/CREB通路调节ABCG2表达来实现这一目标,提供了一个潜在的治疗策略.
科学领域:
- 胃肠病学 胃肠病学
- 分子生物学分子生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 克罗恩氏病 (CD) 是一种慢性炎症性肠病.
- 表皮屏障功能障碍是CD病理生理学的关键因素.
- 针对屏障完整性是一个有前途的治疗途径.
研究的目的:
- 研究迪奥斯梅丁对结肠上皮质屏障功能的影响.
- 在CD模型中阐明底层的diosmetin作用的分子机制.
- 评估迪奥斯梅丁作为治疗CD的治疗剂的潜力.
主要方法:
- 使用脂聚糖 (LPS) 处理的Caco-2细胞和2,4,6-三二硫酸 (TNBS) 诱导的CD小鼠模型.
- 评估了细胞活力,炎症性细胞因子水平 (TNFα,IL-6) 和上皮透性.
- 分析了紧结蛋白表达 (ZO-1,ocludin,claudin-1) 和ABCG2载体水平.
- 研究了包括AMPK,PI3K/AKT和CREB在内的信号通路的作用.
主要成果:
- 迪奥斯梅丁增加了Caco-2细胞活力,降低了TNFα和IL-6水平.
- 迪奥斯梅丁通过降低透性和增加紧密结合蛋白来增强屏障完整性.
- 迪奥斯梅丁降低了ABCG2表达的调节,这与屏障功能有关.
- 对AMPK,PI3K/AKT和CREB通路的迪奥斯梅丁减弱LPS诱导的酸化.
结论:
- 在CD模型中,迪奥斯梅丁有效地改善了表皮屏障功能.
- 迪奥斯美丁的治疗作用是由调节ABCG2表达的AMPK/AKT/CREB信号通路调节的.
- 迪奥斯美丁显示出作为一种新型治疗药物来治疗克罗恩病的潜力.
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