EuHD1 能够防止由 NLRP3 炎症酶驱动的炎症性损伤
Huanhuan Qiu1, Wei Wang1, Kejun Hu2
1School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China.
International immunopharmacology
|September 19, 2023
概括
一种新型的NSAID,EuHD1,通过抑制NLRP3炎症酶激活,有效地治疗小鼠的急性肺和肝损伤. 这种新药显示出治疗与炎症细胞过度激活相关的疾病的潜力.
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
- 毒理学 毒理学 毒理学
背景情况:
- 非类固醇抗炎药物 (NSAIDs) 广泛使用,但具有显著的胃肠道和心血管副作用.
- 一种释放硫化的新型NSAID,EuHD1,表现出改善的胃肠道安全性.
- 需要阐明EuHD1的抗炎机制,特别是它对NLRP3炎症酶的作用.
研究的目的:
- 为了研究EuHD1.1的抗炎机制.
- 探索EuHD1对NLRP3炎症酶激活的作用.
- 评估EuHD1在急性肺和肝损伤的小鼠模型中的治疗潜力.
主要方法:
- 在体外研究中评估了EuHD1对巨炎,LDH释放和NLRP3炎症组分 (Caspase-1,IL-1β) 的影响,使用LPS/ATP刺激.
- 测量了反应性氧物种 (ROS) 生产和ASC寡合体形成.
- 在体内研究中使用了小鼠模型的LPS诱导的急性肺损伤和D-GalN/LPS诱导的急性肝损伤.
主要成果:
- 在实验室中,EuHD1抑制了LPS/ATP诱导的巨细胞灭和LDH释放.
- EuHD1阻断了NLRP3炎症酶激活,抑制了卡斯帕酶-1激活和IL-1β分泌.
- EuHD1降低了细胞内ROS的产生和ASC寡合体的形成,从而抑制了NLRP3炎症酶组合.
- 在体内,EuHD1缓解了急性肺损伤,并降低了IL-1β和Caspase-1 (p20) 水平.
- 通过抑制氧化应激 (SOD/MDA水平) 和阻断NLRP3炎症酶激活,EuHD1改善了急性肝损伤.
结论:
- EuHD1 通过抑制 ROS 生产和 ASC 寡合体形成来抑制 NLRP3 炎症酶组合和激活.
- 在急性肺和肝损伤的小鼠模型中,EuHD1显示了治疗效果.
- EuHD1对治疗与NLRP3炎症酶激活相关的疾病具有前景.
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