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托尔特罗丁可以改善人类膀上皮细胞对LPS的炎症反应和铁亡
Xiangyang Wang1, Tongyu Ji1, Zhaoqiang Jiang1
1Department of Urology, Henan Provincial People's Hospital, Zhengzhou, Henan, China.
Journal of biochemical and molecular toxicology
|September 13, 2023
概括
托尔特罗丁可以减少由细菌脂聚糖 (LPS) 损坏的膀细胞中的炎症和铁亡. 这些保护作用是由Nrf2通路调解的,这表明Tolterodine具有保护作用.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 细菌内毒素脂聚糖 (LPS) 在尿路感染中引发炎症和铁亡.
- 托尔特罗丁是一种已知的抗和抗胆固醇药物,用于尿道问题.
- 托尔特罗丁对人类膀上皮细胞 (hBECs) 中LPS诱导的损伤的保护作用仍未得到研究.
研究的目的:
- 研究Tolterodine对hBECs中LPS诱导的炎症和铁亡的治疗潜力.
- 阐明潜在的分子机制,特别是Nrf2/NF-κB信号通路的作用.
主要方法:
- 细胞活力测试 (MTT,LDH释放) 评估了细胞损伤.
- 测量了氧化应激标志物 (ROS,MDA) 和炎症性细胞因子 (IL-6,IL-1β,TNF-α).
- 铁亡标记物 (Fe2+,GPX4,PTGS2,ACSL4) 和蛋白质水平通过ELISA和西欧 blot进行了分析.
- 使用特定抑制剂 (ML385) 证实了Nrf2的作用.
主要成果:
- 托尔特罗丁显著降低了LPS诱导的氧化应激 (ROS,MDA) 和hBECs中的炎症性细胞因子产生.
- 托尔特罗丁通过降低Fe2+水平和关键的与铁死相关的蛋白质 (GPX4,PTGS2,ACSL4) 来抑制铁死.
- 托尔特罗丁治疗恢复了Nrf2/NF-κB信号平衡,而Nrf2抑制消除了其保护作用.
结论:
- 托尔特罗丁在膀上皮细胞中对LPS诱导的炎症和铁亡产生显著的保护作用.
- 托尔特罗丁的治疗效益严重依赖于Nrf2信号通路的激活.
- 托尔特罗丁作为一种潜在的治疗药物,可用于治疗LPS引起的膀炎症.
关键词:
Nrf2 没有任何问题.托尔特罗丁 (Tolterodine) 是一种药物.铁性化 (ferroptosis) 是一种脂多糖类糖化物 (Lipopolysaccharide) 是一种脂多糖类糖.尿道感染 尿道感染更多相关视频
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