[拜卡林通过调节cAMP-PKA-NF-κB/CREB通路来改善人类微质细胞的炎症反应]
Xiao-Yu Zheng1, Ye-Hao Zhang1, Wen-Ting Song1
1Beijing Key Laboratory of Pharmacology of Chinese Materia Medica, Institute of Basic Medical Sciences of Xiyuan Hospital, China Academy of Chinese Medical Sciences Beijing 100091, China.
概括
拜卡莱因 (BAI) 保护人类微质细胞免受由脂多糖 (LPS) 诱导的炎症和亡. BAI调节cAMP-PKA-NF-κB/CREB通路,为缺血性中风提供潜在的治疗益处.
科学领域:
- 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.
- 免疫学 免疫学 免疫学
背景情况:
- 由脂聚糖 (LPS) 激活微质是缺血性中风中神经炎症的核心.
- 拜卡莱因 (BAI) 是来自传统中医药的黄类药物,具有抗炎性质.
- 了解微质细胞中BAI的机制对于开发新的中风疗法至关重要.
研究的目的:
- 研究贝卡莱因 (BAI) 对脂聚糖 (LPS) 诱导的人类微质细胞 (HMC3) 的保护作用.
- 阐明涉及cAMP-PKA-NF-κB/CREB通路的潜在机制.
- 评估BAI在缺血性中风中的潜在治疗应用.
主要方法:
- 在HMC3细胞中建立了LPS诱导的炎症模型.
- 在治疗组中给予不同剂量的BAI (1.255μmol·L-1).
- 测量了氧化应激标志物 (SOD,MDA),炎症性细胞因子 (TNF-α,IL-1β,IL-6),cAMP水平和亡.
- 利用西方斑点来分析PKA,p-CREB和NF-κB p65蛋白表达.
主要成果:
- BAI (5 μmol·L−1) 显著增加了SOD活性和降低了MDA含量.
- BAI治疗减少了LPS诱导的M1极化,并抑制了TNF-α,IL-1β,IL-6和cAMP水平.
- BAI上调调节了PKA和p-CREB表达,同时降低了NF-κB p65.
- BAI缓解了HMC3细胞的亡.
结论:
- 拜卡莱因对微质细胞中LPS诱导的炎症和亡具有保护作用.
- BAI的机制涉及对cAMP-PKA-NF-κB/CREB信号通路的调制.
- BAI显示出作为治疗大脑缺血性疾病的治疗剂的前景.
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