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基于PKA信号通路探讨胆南星对MPTP诱导帕金森病模型小鼠
的保护作用
Δ
1*
2
1
1, 2 #
1
1
陈桂恩 ,邓雅方 ,邓婉柔 ,伍斌玺 ,彭东辉 ,曾元宁 ,王秋红 (1.广东药科大学中药学院/广东省中药饮
1, 2
片规范化炮制工程技术研究中心,广州 510006;2.黑龙江中医药大学教育部北药基础与应用研究重点实验室/
黑龙江省中药及天然药物药效物质基础研究重点实验室,哈尔滨 150040)
中图分类号 R285;R965 文献标志码 A 文章编号 1001-0408(2023)15-1809-06
DOI 10.6039/j.issn.1001-0408.2023.15.04
摘 要 目的 探讨胆南星对帕金森病(PD)模型小鼠的改善作用及可能机制。方法 将 60 只雄性 C57BL/6J 小鼠随机分为正常
组、模型组、胆南星低剂量组[0.39 g/(kg·d)]、胆南星高剂量组[1.56 g/(kg·d)]和阳性对照药左旋多巴片组[80 mg/(kg·d)],每组12
只。除正常组小鼠注射等体积生理盐水外,其余各组连续5 d腹腔注射1-甲基-4-苯基-1,2,3,6-四氢吡啶[MPTP,35 mg/(kg·d)]建
立亚急性PD模型;造模完成后连续给药治疗7 d,于造模前1 d、造模第5天和末次给药后进行爬杆实验和线悬挂测试。采用免疫
荧光法检测小鼠脑黑质中酪氨酸羟化酶(TH)阳性神经元数量;采用酶联免疫吸附法检测小鼠血清中白细胞介素1β(IL-1β)和肿
瘤坏死因子 α(TNF-α)水平以及脑黑质中 IL-1β、TNF-α、环氧合酶 2(COX-2)和诱导型一氧化氮合酶(iNOS)水平;采用 Western
blot法检测小鼠脑黑质中 cAMP 依赖的蛋白激酶催化亚单位 α(PKA C-α)、谷胱甘肽过氧化物酶 4(GPX4)以及铁蛋白重链多肽
1(FTH1)蛋白的表达。结果 末次给药后,与正常组比较,模型组小鼠爬杆时间显著延长(P<0.01),线悬挂评分显著降低(P<
0.01),脑黑质中TH阳性神经元数量显著减少(P<0.01),血清中IL-1β、TNF-α水平和脑黑质中IL-1β、TNF-α、COX-2、iNOS水平
显著升高(P<0.01),脑黑质中GPX4、PKA C-α和FTH1蛋白表达水平显著降低(P<0.05或P<0.01)。与模型组比较,胆南星高剂
量组小鼠上述指标水平均显著回调(P<0.05或P<0.01)。结论 胆南星能够改善MPTP诱导的PD模型小鼠运动能力障碍,减少
脑黑质 TH 神经元死亡,对模型小鼠具有神经保护作用;这可能与其激活 PKA 信号通路来抑制神经炎症和神经元细胞铁死亡
有关。
关键词 胆南星;帕金森病;1-甲基-4-苯基-1,2,3,6-四氢吡啶;cAMP 依赖的蛋白激酶信号通路;神经炎症;铁死亡
Investigation on the protective effect of Arisaema Cum Bile on MPTP-induced Parkinson’s disease model
mice based on PKA signaling pathway
CHEN Guien ,DENG Yafang ,DENG Wanrou ,WU Binxi ,PENG Donghui ,ZENG Yuanning ,WANG
1
1
1, 2
2
1
1
Qiuhong 1, 2 (1. School of Chinese Materia Medica, Guangdong Pharmaceutical University/Guangdong
Engineering Technology Research Center for Standardized Processing of Chinese Materia Medica,Guangzhou
510006,China;2. Heilongjiang Key Laboratory for Pharmacodynamic Material Bases of TCM and Natural
Medicines/Key Laboratory of Northern Medicine Foundation and Application,Ministry of Education,
Heilongjiang University of Chinese Medicine,Harbin 150040,China)
ABSTRACT OBJECTIVE To investigate the improvement effects of Arisaema Cum Bile on Parkinson’s disease (PD) model
mice and its potential mechanism. METHODS Sixty male C57BL/6J mice were randomly divided into normal group, model group,
Arisaema Cum Bile low-dose group [0.39 g/(kg·d)], Arisaema Cum Bile high-dose group [1.56 g/(kg·d)] and positive control
drug Levodopa tablet group [80 mg/(kg·d)], with 12 mice in each group. Except that normal group was given constant volume of
normal saline, other groups were given 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine [MPTP,35 mg/(kg·d)] intraperitoneally for
5 consecutive days to induce subacute PD model; after modeling, they were given relevant medicine continuously for 7 d; rod
climbing test and line suspension test were performed 1 d
Δ 基金项目 国家重点研发计划项目(No.2018YFC1707100);广东 before modeling, on the 5th day of modeling and after the last
省重点领域研发计划项目(No.2022B1111120002);广东省中医药局科 medication. The number of tyrosine hydroxylase (TH)-positive
研项目(No.20221214) neurons in the substantia nigra of mice were measured by
*第一作者 硕士。研究方向:中药炮制学。E-mail:674039717@
immunofluorescence; the levels of interleukin 1β (IL-1β) and
qq.com
# 通信作者 教授,博士。研究方向:中药炮制与药效物质基础。 tumor necrosis factor α (TNF-α) in serum and the levels of IL-
E-mail:qhwang668@sina.com 1β, TNF- α, cyclooxygenase-2 (COX-2) and inducible nitric
中国药房 2023年第34卷第15期 China Pharmacy 2023 Vol. 34 No. 15 · 1809 ·