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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
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          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
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          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
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          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 ·
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