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甲基莲心碱对帕金森病细胞线粒体自噬的影响
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          陈翠青 ,谭臣臣 ,王电翠 ,蒋 敏 (1. 康复大学青岛中心医院/青岛市中心医院神经内科,山东 青岛
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          266042;2.康复大学青岛中心医院/青岛市中心医院血液科,山东 青岛 266042;3.青岛市第六人民医院神经
          内科,山东 青岛 266000)
          中图分类号  R965;R742.5      文献标志码  A      文章编号  1001-0408(2025)02-0197-06
          DOI  10.6039/j.issn.1001-0408.2025.02.11

          摘  要  目的  探究甲基莲心碱(NEF)调节腺苷一磷酸活化的蛋白激酶(AMPK)/哺乳动物雷帕霉素靶蛋白(mTOR)/UNC-51 样
          激酶1(ULK1)信号通路对帕金森病(PD)细胞线粒体自噬的影响,从而探讨该药改善PD的作用机制。方法  用100 μmol/L的1-甲
          基-4-苯基吡啶离子(MPP)处理SH-SY5Y细胞24 h以构建PD细胞模型,将PD模型细胞分为模型组(PD组)和NEF低、中、高浓度
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          处理组(NEF-L、NEF-M、NEF-H组,2.5、5.0、10.0 μmol/L)以及NEF高浓度+AMPK抑制剂组(NEF-H+Compound C组,10.0 μmol/L
          NEF和50 μmol/L Compound C);另取未经MPP 、NEF处理的细胞作为对照组。观察各组细胞的超微形态,检测其自噬体数量、存
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          活率、凋亡率、线粒体膜电位的变化情况,胱天蛋白酶3(Caspase-3)、微管相关蛋白1轻链3(LC3)、Beclin-1蛋白的表达水平,以及
          mTOR、AMPK、ULK1蛋白的磷酸化水平。结果  与PD组比较,NEF-L、NEF-M、NEF-H组细胞自噬体明显增多,膜电位有所升高,
          存活率、LC3-Ⅱ/LC3-Ⅰ、Beclin-1蛋白的表达和AMPK、ULK1蛋白的磷酸化水平均显著升高或上调,凋亡率和Caspase-3、p62蛋
          白的表达及mTOR蛋白的磷酸化水平均显著降低或下调,且上述改善作用均呈浓度依赖性(P<0.05);Compound C能显著逆转高
          浓度NEF的上述改善作用(P<0.05)。结论  NEF通过上调AMPK、ULK1蛋白的磷酸化水平,下调mTOR蛋白的磷酸化水平来促
          进PD模型细胞的线粒体自噬,抑制细胞凋亡,从而发挥神经细胞保护作用。
          关键词  甲基莲心碱;帕金森病;线粒体自噬;AMPK/mTOR/ULK1信号通路

          Effect of neferine on mitophagy in Parkinson’s disease cells
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          CHEN Cuiqing ,TAN Chenchen ,WANG Diancui ,JIANG Min (1.  Dept.  of  Neurology,  Qingdao  Central
          Hospital,  Rehabilitation  University/Qingdao  Central  Hospital,  Shandong  Qingdao  266042,  China;2.  Dept.  of
          Hematology,  Qingdao  Central  Hospital,  Rehabilitation  University/Qingdao  Central  Hospital,  Shandong  Qingdao
          266042,  China;3.  Dept.  of  Neurology,  the  Sixth  People’s  Hospital  of  Qingdao,  Shandong  Qingdao  266000,
          China)
          ABSTRACT   OBJECTIVE  To  investigate  the  effect  of  neferine (NEF)  on  mitophagy  in  Parkinson’s  disease (PD)  cells  by
          regulating  the  adenosine  monophosphate-activated  protein  kinase (AMPK)/mammalian  target  of  rapamycin (mTOR)/UNC-51-like
          kinase  1 (ULK1)  signaling  pathway,  and  explore  the  mechanism  of  this  drug  to  improve  PD.  METHODS  SH-SY5Y  cells  were
          treated  with  100  μmol/L  1-methyl-4-phenylpyridinium  ion (MPP )  for  24  h  to  construct  a  PD  cell  model.  PD  model  cells  were
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          divided into model group (PD group), NEF low-, medium- and high-concentration groups (NEF-L, NEF-M, NEF-H group, 2.5,
          5.0,  10.0  μmol/L),  and  high  concentration  of  NEF+AMPK  inhibitor  group (NEF-H+Compound  C  group,  10.0  μmol/L  NEF+50
          μmol/L  Compound  C). The  cells  treated  without  MPP   and  NEF  were  used  as  the  control  group. The  ultrastructure  of  the  cells  in
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          each  group  was  observed;  the  amount  of  autophagosomes,  survival  rate,  apoptosis  rate,  mitochondrial  membrane  potential,  and
          the  protein  expressions  of  Caspase-3,  microtubule-associated  protein  1  light  chain  3 (LC3)  and  Beclin-1,  as  well  as  the
          phosphorylation  levels  of  mTOR,  AMPK  and  ULK1  were  detected.  RESULTS  Compared  with  PD  group,  the  amount  of
          autophagosomes in NEF-L, NEF-M and NEF-H groups was increased, and membrane potential was increased; survival rate, LC3-
          Ⅱ/LC3-Ⅰ, protein expression of Beclin-1, and protein phosphorylation levels of AMPK and ULK1 were significantly increased or
          up-regulated;  the  apoptotic  rate,  protein  expressions  of  Caspase-3  and  p62,  and  protein  phosphorylation  level  of  mTOR  were
          significantly decreased or down-regulated, and the above improvements were in a dose-dependent manner (P<0.05). Compound C
          could  significantly  reverse  the  above  improvement  effect  of  high  concentration  of  NEF (P<0.05).  CONCLUSIONS  NEF  can
          promote  mitophagy  and  inhibit  apoptosis  of  PD  model  cells  by  up-regulating  protein  phosphorylation  levels  of AMPK  and  ULK1,
                                                             and  down-regulating  protein  phosphorylation  level  of  mTOR,
             Δ 基金项目 青岛市医药卫生科研指导项目(No.2022-WJZD056)
                                                             thus playing a protective role in nerve cells.
             *第一作者 主治医师。研究方向:神经内科。E-mail:oewms6@             KEYWORDS
          163.com                                                         neferine;  Parkinson’s  disease;  mitophagy;
                                                             AMPK/mTOR/ULK1 signaling pathway
             # 通信作者 主治医师。研究方向:神经内科。E-mail:f48kwf@
          163.com


          中国药房  2025年第36卷第2期                                                 China Pharmacy  2025 Vol. 36  No. 2    · 197 ·
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