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麻黄碱对脂多糖诱导的小胶质细胞功能损伤的修复作用及机制
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尹 涛 ,姜丽真 ,张盟盟 ,王睿健 ,张文超 [1.衡水市人民医院(哈励逊国际和平医院)神经外科二病区,河北
1*
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衡水 053000;2.衡水市人民医院(哈励逊国际和平医院)肿瘤科,河北 衡水 053000]
中图分类号 R965 文献标志码 A 文章编号 1001-0408(2024)01-0033-05
DOI 10.6039/j.issn.1001-0408.2024.01.06
摘 要 目的 研究麻黄碱对脂多糖(LPS)诱导的小胶质细胞功能损伤的修复作用及机制。方法 以人小胶质细胞HMC3为研究
对象,考察不同质量浓度麻黄碱(75、150、300、600 μg/mL)对HMC3细胞活力和凋亡的影响。然后将HMC3细胞分为对照组(不
受药物干预)、LPS组(1 μg/mL)、麻黄碱组(1 μg/mL LPS+300 μg/mL麻黄碱)、BAY11-7082组[1 μg/mL LPS+5 μmol/L核因子κB
(NF-κB)信号通路抑制剂BAY11-7082]、抑制剂组(1 μg/mL LPS+300 μg/mL麻黄碱+5 μmol/L BAY11-7082)和激活剂组(1 μg/mL
LPS+300 μg/mL麻黄碱+1 μmol/L NF-κB信号通路激活剂Prostratin),加入相应药物作用24 h后,检测细胞迁移能力和细胞中可溶
性白细胞介素6(sIL-6)、白细胞介素10(IL-10)、超氧化物歧化酶(SOD)、丙二醛(MDA)水平以及NF-κB信号通路相关蛋白表达水
平。结果 300 μg/mL的麻黄碱可使HMC3细胞活力显著升高、凋亡率显著降低(P<0.05)。与对照组相比,LPS组迁移细胞数显
著增多,细胞中sIL-6、MDA水平和NF-κB蛋白磷酸化水平均显著升高,IL-10、SOD水平均显著降低(P<0.05)。与LPS组相比,麻
黄碱组和 BAY11-7082 组上述指标水平均显著逆转(P<0.05)。与麻黄碱组相比,抑制剂组迁移细胞数显著减少,细胞中 sIL-6、
MDA 水平和 NF-κB 蛋白磷酸化水平均显著降低,IL-10、SOD 水平均显著升高(P<0.05);而激活剂组上述指标水平均显著逆转
(P<0.05)。结论 麻黄碱可通过抑制LPS诱导的HMC3细胞凋亡、迁移、炎症和氧化应激,修复细胞功能损伤,其作用机制可能与
抑制NF-κB信号通路活性有关。
关键词 小胶质细胞;麻黄碱;脂多糖;核因子κB信号通路;细胞功能损伤
Repair effect of ephedrine on lipopolysaccharide-induced microglia function injury and its mechanism
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YIN Tao ,JIANG Lizhen ,ZHANG Mengmeng ,WANG Ruijian ,ZHANG Wenchao [1. Dept. of Neurosurgery,
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Hengshui People’s Hospital (Harrison International Peace Hospital), Hebei Hengshui 053000, China;2. Dept.
of Oncology, Hengshui People’s Hospital (Harrison International Peace Hospital), Hebei Hengshui 053000,
China]
ABSTRACT OBJECTIVE To study the repair effect of ephedrine on lipopolysaccharide (LPS)-induced microglia function injury
and its mechanism. METHODS Human microglia cells (HMC3) were used as research objects to investigate the effects of different
concentrations of ephedrine (75, 150, 300, 600 μg/mL) on the viability and apoptosis of HMC3 cells. HMC3 cells were divided
into control group (without drug intervention), LPS group (1 μg/mL), ephedrine group (1 μg/mL LPS+300 μg/mL ephedrine),
BAY11-7082 group [1 μg/mL LPS+5 μmol/L nuclear factor- κB (NF- κB) pathway inhibitor BAY11-7082], inhibitor group (1
μg/mL LPS+300 μg/mL ephedrine+5 μmol/L BAY11-7082) and activator group (1 μg/mL LPS+300 μg/mL ephedrine+1 μmol/L
NF-κB pathway activator Prostratin). After 24 hours of drug treatment, cell migration, the levels of soluble interleukin-6(sIL-6),
interleukin-10(IL-10), superoxide dismutase(SOD)and malondialdehyde(MDA), and the expressions of NF-κB pathway-related
proteins were all detected. RESULTS The viability of HMC3 cells could be increased significantly by 300 μg/mL ephedrine, while
the apoptotic rate was decreased significantly (P<0.05). Compared with the control group, the number of migrating cells was
increased significantly in the LPS group; the levels of sIL-6 and MDA, the phosphorylation of NF- κB protein were increased
significantly, while the levels of IL-10 and SOD were decreased significantly (P<0.05). Compared with the LPS group, the above
indexes were reversed significantly in the ephedrine group and BAY11-7082 group (P<0.05). Compared with the ephedrine group,
the number of migrating cells was decreased significantly in
Δ 基金项目 河北省科技计划重点研发项目(No.182777223);衡 the inhibitor group; the levels of sIL-6 and MDA, the
水市科技计划项目(No.2022014083Z) phosphorylation of NF-κB protein were decreased significantly,
*第一作者 主治医师。研究方向:神经重症、缺血性脑卒中等相
while the levels of IL-10 and SOD were increased significantly
关诊疗。E-mail:ytyinhanxu@163.com
# 通信作者 副主任医师。研究方向:脑血管病、神经重症、脑肿瘤 (P<0.05). The above indexes were reversed significantly in
等相关诊疗。E-mail:zhangwcwz0812@163.com the activator group (P<0.05). CONCLUSIONS Ephedrine
中国药房 2024年第35卷第1期 China Pharmacy 2024 Vol. 35 No. 1 · 33 ·