福莫诺丁可以通过抑制MAPK/PPAR-γ/NF-κB/ROS信号通路来缓解DSS诱导的大肠炎
Shen Cao1, Baojiang Lv2, Yi Tai1
1Key Laboratory of Natural Resources of Changbai Mountain & Functional Molecules, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji 133002, Jilin Province, China.
Toxicology and applied pharmacology
|January 24, 2025
概括
福尔摩诺尼丁 (FMN) 通过抑制NLRP3炎症酶和NF-κB激活,有效治疗DSS诱导的大肠炎. 这种化合物减少炎症和氧化应激,为炎症性肠病 (IBD) 提供了潜在的治疗策略.
科学领域:
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
- 胃肠病学 胃肠病学
背景情况:
- 福尔摩诺尼丁 (FMN) 是由阿斯特拉加卢斯 (Astragalus membranaceus) 衍生而来的,它具有已知的抗瘤,抗炎症,低脂和抗氧化性质.
- 初步证据表明,FMN在炎症性肠病 (IBD) 中具有治疗潜力,但其确切的机制尚不清楚.
研究的目的:
- 在小鼠模型中阐明Formononetin (FMN) 在治疗德克斯硫酸盐 (DSS) 诱导的大肠炎中的作用机制.
- 研究FMN对关键炎症通路和细胞损伤标记物的影响.
主要方法:
- 使用RAW264.7和用LPS刺激的骨髓衍生巨细胞 (BMDMs) 建立的炎症细胞模型.
- 在C57BL/6小鼠中诱导大肠炎,使用4%的DSS溶液来模型IBD用于药理动力学评估.
- 评估了生物化学参数,形态变化,蛋白质表达 (NLRP3炎症组,NF-κB/p65),线粒体完整性,活性氧物种 (ROS) 水平,MAPK信号传递和PPAR-γ核转移.
主要成果:
- FMN显著改善了DSS诱导的大肠炎,由降低的疾病活性指数 (DAI) 表明,改善了体重增加,并恢复了结肠长度.
- FMN抑制了NLRP3炎症酶蛋白表达,并抑制了NF-κB/p65核转位.
- FMN防止了线粒体损伤,减少了ROS积累,抑制了MAPK信号通路,并调节了核PPAR-γ,导致炎症因子释放减少.
结论:
- 甲状腺素 (FMN) 在DSS诱导的大肠炎中具有抗炎作用.
- FMN的机制涉及抑制线粒体损伤和NLRP3炎症酶激活.
- FMN调节MAPK/PPAR-γ/ROS信号通路,并减少NF-κB核转位,有助于其在IBD中的治疗效益.
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