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基于AMPK/mTOR信号通路研究膝痹宁方对膝骨关节炎模型大

          鼠的改善作用机制
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          廖太阳 ,张 力 ,杨 楠 ,魏义保 ,吕璟先 ,徐 波 ,丁 亮 ,王培民 ,张 立 (1.南京中医药大学附属医
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          院/江苏省中医院骨伤科,南京 210029;2.南京中医药大学附属苏州市中医医院骨伤科,江苏 苏州 215007)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)01-0023-06
          DOI  10.6039/j.issn.1001-0408.2023.01.05
          摘  要  目的  基于腺苷酸活化蛋白激酶(AMPK)/哺乳动物雷帕霉素靶蛋白(mTOR)信号通路探究膝痹宁方(XBN)对膝骨关节
          炎(KOA)模型大鼠的改善作用机制。方法  将 36 只大鼠随机分为空白组、模型组、XBN 组(12.56 g/kg)、XBN+二甲双胍(AMPK
          激动剂)组[12.56 g/kg XBN+100 mg/kg二甲双胍],每组9只。除空白组外,其余各组大鼠均通过离断前交叉韧带的方法复制KOA
          模型。造模成功后,各组大鼠给予相应药物/生理盐水,XBN和生理盐水每天灌胃1次,二甲双胍隔天腹腔注射1次,连续4周。观
          察大鼠软骨组织病理形态学变化并进行Mankin评分,检测大鼠软骨组织中聚集蛋白聚糖(Aggrecan)的表达水平,血小板反应蛋
          白解整合素金属肽酶 4(ADAMTS-4)、ADAMTS-5、基质金属蛋白酶 3(MMP-3)、MMP-13 的 mRNA 和蛋白表达水平,及 AMPK、
          mTOR 蛋白的磷酸化水平。结果  与空白组比较,模型组大鼠软骨组织结构分层紊乱,软骨层基质淡染,潮线出现扭曲或中断,
          Mankin 评分显著升高(P<0.05);软骨组织中 Aggrecan 蛋白表达水平和 AMPK 蛋白的磷酸化水平均显著降低(P<0.05),
          ADAMTS-4、ADAMTS-5、MMP-3、MMP-13 mRNA和蛋白的表达水平以及mTOR蛋白的磷酸化水平均显著升高(P<0.05)。与模
          型组比较,各给药组大鼠软骨病理形态学变化明显改善,上述评分或指标水平均显著逆转(P<0.05)。与XBN组比较,XBN+二甲
          双胍组大鼠软骨病变程度进一步减轻,上述评分或指标水平进一步改善(P<0.05)。结论  XBN可改善KOA模型大鼠的软骨损
          伤,促进软骨合成,减少软骨降解,其作用机制可能与激活AMPK/mTOR信号通路有关。
          关键词  膝痹宁方;膝骨关节炎;腺苷酸活化蛋白激酶;哺乳动物雷帕霉素靶蛋白;软骨


          Study  on  improvement  effect  mechanism  of  Xibining  prescription  on  knee  osteoarthritis  model  rats  based
          on AMPK/mTOR signaling pathway
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          LIAO Taiyang ,ZHANG Li ,YANG Nan ,WEI Yibao ,LYU Jingxian ,XU Bo ,DING Liang ,WANG Peimin ,
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          ZHANG Li(1. Dept. of Orthopaedics, the Affiliated Hospital of Nanjing University of Chinese Medicine/Jiangsu
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          Province  Hospital  of  Chinese  Medicine,Nanjing  210029,China;2.  Dept.  of  Orthopaedics,  the Affiliated  Suzhou
          Traditional  Chinese  Medicine  Hospital  of  Nanjing  University  of  Chinese  Medicine,  Jiangsu  Suzhou  215007,
          China)
          ABSTRACT   OBJECTIVE  To  investigate  the  improvement  effect  mechanism  of  Xibining  prescription (XBN)  on  knee
          osteoarthritis (KOA)  model  rats  based  on  AMP-activated  protein  kinase(AMPK)/mammalian  target  of  rapamycin (mTOR)
          signaling pathway. METHODS  Totally 36 rats were randomly divided into blank group, model group, XBN group (12.56 g/kg),
          XBN+metformin (AMPK  agonist)  group (12.56  g/kg  XBN+100  mg/kg  metformin),  with  9  rats  in  each  group.  Except  for  blank
          group,  KOA  model  was  induced  by  anterior  cruciate  ligament  transection  in  other  groups. After  modeling,  each  group  was  given
          relevant medicine/normal saline, XBN and normal saline intragastrically, once a day, and metformin intraperitoneally, every other
          day,  for  4  consecutive  weeks.  The  pathomorphological  changes  of  cartilage  tissue  in  rats  were  observed  and  Mankin  scoring  was
          conducted. The expression level of Aggrecan in rat cartilage, mRNA and protein expressions of platelet reactive protein disintegrin
          and metalloproteinase with thrombospondin motifs 4 (ADAMTS-4), ADAMTS-5, matrix metalloproteinase 3 (MMP-3) and MMP-
                                                             13,  and  the  phosphorylation  level  of  AMPK  and  mTOR

             Δ 基金项目 国家自然科学基金资助项目(No.81904224);江苏省            proteins  were  detected.  RESULTS  Compared  with  blank
          中医院高峰学术人才项目(No.y2021rc02);苏州市“科教兴卫”青年科             group, the structure of cartilage tissue in the model group was
          技项目(No.KJXW2020045)                                disordered,  the  matrix  of  cartilage  layer  was  lightly  stained,
             *第一作者 博士研究生。研究方向:膝骨关节炎的基础与临床。
          E-mail:drtaiyang@126.com                           the  tide  line  was  distorted  or  interrupted,  and  Mankin  score
                                                             was  significantly  increased (P<0.05).  The  protein  expression
             # 通信作者 主治中医师,博士。研究方向:膝骨关节炎的基础与
          临床。E-mail:zhang4462053@126.com                     of Aggrecan in cartilage tissue and the phosphorylation level of


          中国药房  2023年第34卷第1期                                                  China Pharmacy  2023 Vol. 34  No. 1    · 23 ·
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