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·药学研究·


          资木瓜总苷对RA模型小鼠的骨保护作用及机制                                                     Δ


          邓 颖    1, 2* ,金 璨 ,段志豪 ,张晓丽 ,李世刚               1, 2 # [1.三峡大学基础医学院,湖北 宜昌 443002;2.三峡大
                                      1, 2
                                               1, 2
                            1, 2
          学国家中医药管理局中药药理(肿瘤)科研三级实验室,湖北 宜昌 443002]
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2023)09-1042-06
          DOI  10.6039/j.issn.1001-0408.2023.09.04

          摘   要  目的  研究资木瓜总苷对类风湿关节炎(RA)模型小鼠的骨保护作用及可能机制,为进一步将其开发为抗RA药物提供参
          考。方法  将70只雄性DBA/1小鼠按随机数字表法分为正常组、模型组、资木瓜总苷低剂量组(60 mg/kg)、资木瓜总苷高剂量组
         (240 mg/kg)和雷公藤多苷片组(阳性对照,30 mg/kg),每组14只。除正常组外,其余各组小鼠均采用葡萄糖-6-磷酸异构酶混合多
          肽诱导制备RA小鼠模型。观察并记录各组小鼠的体质量、后足趾厚度、关节炎评分;采用苏木精-伊红染色法、抗酒石酸酸性磷酸
          酶染色法及番红固绿染色法观察小鼠踝关节组织的滑膜炎症及骨、软骨破坏情况;采用酶联免疫吸附测定法检测小鼠血清中白细
          胞介素 6(IL-6)和踝关节组织中肿瘤坏死因子 α(TNF-α)、IL-4、IL-10 的含量;采用 Western blot 法检测小鼠踝关节组织中核因子
          κB受体活化因子配体(RANKL)、核因子κB受体活化因子(RANK)、骨保护素(OPG)、肿瘤坏死因子受体相关蛋白6(TRAF6)、活
          化T细胞核因子1(NFATC1)的蛋白表达水平。结果  在给药结束时,与正常组比较,模型组小鼠的体质量显著降低(P<0.05),关
          节炎评分和左、右后足趾厚度均显著增加(P<0.05);踝关节组织出现明显滑膜增生和炎症细胞浸润,破骨细胞数目明显增多,软
          骨组织破坏明显;血清中 IL-6 含量及踝关节组织中 TNF-α 含量和 RANKL、RANK、TRAF6、NFATC1 蛋白表达水平均显著升高
         (P<0.05),而踝关节组织中IL-4、IL-10含量和OPG蛋白表达水平均显著降低(P<0.05)。与模型组比较,各给药组小鼠的上述病
          理形态学变化和指标含量/水平均得到显著改善(P<0.05)。结论  资木瓜总苷对RA模型小鼠具有一定的骨保护作用;其机制可
          能与降低IL-6、TNF-α含量,升高IL-4、IL-10含量,抑制RANKL/RANK/OPG信号通路活化,从而抑制破骨细胞增殖和促进软骨及
          骨组织修复有关。
          关键词  资木瓜总苷;类风湿关节炎;核因子κB受体活化因子配体;核因子κB受体活化因子;骨保护素

          The osteoprotective effects and mechanisms of RA model mice by total saponins of Chaenomeles speciosa
          DENG Ying ,JIN Can ,DUAN Zhihao ,ZHANG Xiaoli ,LI Shigang [1.  School  of  Basic  Medicine,
                                                 1, 2
                                                                               1, 2
                     1, 2
                                1, 2
                                                                  1, 2
          Three  Gorges  University,  Hubei  Yichang  443002,  China;2.  Level  Ⅲ  Laboratory  of  Pharmacology (Tumor)
          Research  in  Chinese  Medicine,  National  Bureau  of  Traditional  Chinese  Medicine,  Three  Gorges  University,
          Hubei Yichang 443002, China]
          ABSTRACT    OBJECTIVE  To  study  the  osteoprotective  effects  and  possible  mechanism  of  total  saponins  of  Chaenomeles
          speciosa on rheumatoid arthritis (RA) model mice, and to provide reference for further development of anti-RA drugs. METHODS
          Seventy male DBA/1 mice were randomly divided into normal group, model group, low-dose and high-dose groups of C. speciose
          total saponins (60, 240 mg/kg), Tripterygium wilfordii polyglycoside tablets group (positive control, 30 mg/kg), with 14 mice in
          each  group.  In  addition  to  the  normal  group,  the  other  groups  of  mice  were  induced  by  glucose-6-phosphate  isomerase  mixed
          polypeptide  to  prepare  RA  model.  The  body  weight,  rear  toes  thickness  and  arthritis  scores  of  each  group  were  recorded;  the
          synovial  inflammation,  bone  and  cartilage  destruction  of  ankle  joint  tissues  were  observed  by  hematoxylin-eosin  staining,  tartrate-
          resistant  acid  phosphatase  staining  and  safranin  O-fast  green  staining;  the  contents  of  interleukin-6 (IL-6)  in  serum  and  tumor
          necrosis  factor  α (TNF- α),  IL-4  and  IL-10  in  ankle  joint  tissues  were  detected  by  ELISA;  the  expression  levels  of  receptor
          activator of nuclear factor-κB ligand (RANKL), receptor activator of nuclear factor-κB (RANK), osteoprotegerin (OPG), tumor
          necrosis  factor  receptor-associated  protein  6 (TRAF6)  and  nuclear  factor  of  activated  T  cells  1 (NFATC1)  protein  in  ankle  joint
          tissues were detected by Western blot assay. RESULTS At the end of administration, compared with normal group, the body mass
                                                              of  mice  in  the  model  group  was  significantly  reduced (P<
              Δ 基金项目 国 家 自 然 科 学 基 金 资 助 项 目(No. 82274170,No.  0.05),  and  the  arthritis  score  and  the  thickness  of  the  left  and
          81673665)                                           right  rear  toes  were  significantly  increased (P<0.05);  the
             *第一作者 硕士研究生。研究方向:类风湿关节炎药理学。
          E-mail:splenly@foxmail.com                          ankle  joint  tissues  of  mice  in  the  model  group  showed
                                                              significant  synovial  proliferation  and  inflammatory  infiltration,
              # 通信作者 教授,硕士生导师,博士。研究方向:类风湿关节炎药
          理学。E-mail:Fox201@163.com                            the  number  of  osteoclasts  increased  significantly  and


          · 1042 ·    China Pharmacy  2023 Vol. 34  No. 9                              中国药房  2023年第34卷第9期
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