阿卡塞丁通过阻断MAPK/NF-κB通路和NLRP3炎症酶激活来抑制炎症
Juan Bu1, Yeledan Mahan1, Shengnan Zhang1
1Medical and Translational Research Center, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, China.
Frontiers in pharmacology
|February 23, 2024
概括
阿卡塞丁抑制NLRP3炎症酶,这是阿尔茨海默氏症等炎症性疾病的关键参与者. 这种天然化合物减少了关键的炎症标志物和信号通路,提供了潜在的治疗益处.
科学领域:
- 免疫学 免疫学 免疫学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 含有3 (NLRP3) 炎症酶的核酸结合寡聚化域 (NOD) 类受体皮林域与神经退行性疾病有关.
- 阿卡塞丁对阿尔茨海默病和缺血损伤的保护作用表明NLRP3炎症酶调节,但机制需要阐明.
研究的目的:
- 为了研究阿卡西对各种激动剂诱导的NLRP3炎症酶激活的作用.
- 阐明阿卡塞丁对NLRP3炎症酶激活的抑制作用的潜在机制.
主要方法:
- 在使用MSU,Nigericin,ATP和Pam3CSK的小鼠骨髓衍生巨细胞 (BMDMs) 中建立了NLRP3炎症酶激活模型4.
- 利用西方斑块,ELISA和共聚焦显微镜来评估炎症组分,细胞因子释放,信号通路 (NF-κB,MAPK),活性氧物种 (ROS) 和ASC聚合.
- 使用ICP和MQAE测定测量了离子流量 (K+,Cl-).
主要成果:
- 阿卡塞丁显著抑制了NLRP3炎症酶的激活,减少了IL-1β,IL-18,TNF-α和LDH的释放.
- 阿卡西抑制了NF-κB和MAPK信号通路,降低了ROS的产生,并抑制了ASC聚合.
- 在炎症酶激活过程中,阿卡塞丁没有影响和离子流出.
结论:
- 阿卡西在NLRP3炎症酶的原始化和组装阶段都表现出强大的抑制作用.
- 阿卡西是治疗NLRP3炎症和细胞介导炎症的有希望的候选药物.
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