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基于线粒体质量控制系统探讨肾必宁颗粒对 IgA 肾病大鼠的肾

          脏保护作用机制
                                   Δ


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          樊艳敏    1, 2* ,宋纯东  1, 2 # ,史慧远 ,宋 珂 ,陈晨晨 ,张 霞 ,任献青 ,丁 樱 ,王 墨(1.河南中医药
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          大学第一附属医院儿科医院肾病紫癜二病区,郑州 450000;2.河南中医药大学儿科医学院,郑州 450046;
          3.重庆医科大学附属儿童医院肾脏免疫科,重庆 401122)
          中图分类号  R965;R692      文献标志码  A      文章编号  1001-0408(2024)24-2984-06
          DOI  10.6039/j.issn.1001-0408.2024.24.04

          摘   要  目的  基于线粒体质量控制系统,探讨肾必宁颗粒对免疫球蛋白A(IgA)肾病大鼠的肾脏保护作用机制。方法  采用“牛
          血清白蛋白+四氯化碳+脂多糖”法建立IgA肾病模型,将模型大鼠随机分为模型组、醋酸泼尼松组(6.25 mg/kg)、肾必宁等剂量组
         (4.1 g/kg)和肾必宁高剂量组(20.5 g/kg),另取正常大鼠作为正常对照组,每组12只。各组大鼠灌胃相应药物或蒸馏水,每天1次,
          连续4周。末次给药后,检测大鼠24 h尿蛋白总量(24 h-UTP)和尿液中红细胞计数,以及血清肌酐(Scr)、尿素氮(BUN)、白蛋白
         (ALB)、丙氨酸转氨酶(ALT)水平;观察肾组织病理变化和肾脏系膜区 IgA 沉积改变;检测肾组织中 PTEN 诱导假定激酶 1
         (PINK1)、E3泛素连接酶(Parkin)、微管相关蛋白1轻链3(LC3)、动力相关蛋白1(Drp1)、线粒体融合蛋白2(Mfn2) mRNA及蛋白
          表达水平。结果  与模型组比较,醋酸泼尼松组、肾必宁等剂量组和肾必宁高剂量组大鼠24 h-UTP,尿红细胞计数,ALT、BUN、Scr
          水平,LC3-Ⅱ/LC3-Ⅰ mRNA 比值和 Drp1 mRNA 及蛋白表达水平均显著降低(P<0.05);ALB 水平,LC3-Ⅱ/LC3-Ⅰ蛋白比值和
          PINK1、Parkin、Mfn2 mRNA 及蛋白表达水平均显著升高(P<0.05);大鼠肾组织病理形态均明显改善,IgA 沉积均明显减少。
          结论  肾必宁颗粒可能通过激活PINK1/Parkin通路、增强线粒体自噬、纠正线粒体动力学紊乱来减轻IgA肾病大鼠肾损伤,从而保
          护肾功能。
          关键词  肾必宁颗粒;IgA肾病;线粒体质量控制系统;线粒体稳态;自噬

          Protective  effect  of  Shenbining  granule  on  renal  tissue  of  IgA  nephropathy  rats  based  on  mitochondrial
          quality control system
          FAN Yanmin ,SONG Chundong ,SHI Huiyuan ,SONG Ke ,CHEN Chenchen ,ZHANG Xia ,REN
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          Xianqing ,DING Ying ,WANG Mo(1.  Second  Ward  of  Nephropathy  Purpura,  Pediatric  Hospital,  the  First
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          Affiliated  Hospital  of  Henan  University  of  Chinese  Medicine,  Zhengzhou  450000,  China;2.  School  of
          Pediatrics,  Henan  University  of  Chinese  Medicine,  Zhengzhou  450046,  China;3.  Dept.  of  Renal  Immunology,
          Children’s Hospital of Chongqing Medical University, Chongqing 401122, China)
          ABSTRACT    OBJECTIVE  To  explore  the  renal  protective  mechanism  of  Shenbining  granules  on  IgA  nephropathy (IgAN)  rats
          based  on  mitochondrial  quality  control  system.  METHODS  IgAN  rat  model  was  established  by  the  method  of “bovine  serum
          albumin+carbon  tetrachloride+lipopolysaccharide”.  The  model  rats  were  randomly  divided  into  model  group,  prednisone  acetate
          group (6.25  mg/kg),  Shenbining  equal-dose  group (4.1  g/kg)  and  Shenbining  high-dose  group (20.5  g/kg). The  normal  rats  were
          taken  as  the  normal  control  group,  with  12  rats  in  each  group.  Rats  were  given  corresponding  drugs  or  distilled  water
          intragastrically in each group, once a day, for 4 consecutive weeks. After the last medication, the 24 h total urinary protein (24 h-
          UTP)  and  erythrocyte  count  in  urine  were  determined,  and  the  levels  of  serum  creatinine (Scr),  blood  urea  nitrogen (BUN),
          albumin (ALB)  and  alanine  transaminase (ALT)  were  also  detected. The  histopathological  changes  in  the  kidneys  and  changes  in
                                                              IgA  deposition  in  the  mesangial  area  of  the  kidney  were
              Δ 基金项目 国家自然科学基金面上项目(No.82074493);河南省
                                                              observed.  mRNA  and  protein  expression  levels  of  PTEN-
          中医药科学研究专项(No.2022JDZX003);河南省中医药科学研究重
          大专项(No.2023ZYZD02);河南省中医学“双一流”创建科学研究专项              induced  putative  kinase  1  (PINK1),  E3  ubiquitin  ligase
         (No.HSRP-DFCTCM-2023-3-07)                          (Parkin) ,  microtubule-associated  protein  1  light  chain-3
             *第一作者 硕士研究生。研究方向:儿童肾脏病及风湿免疫性疾
                                                             (LC3),  dynamin-related  protein  1 (Drp1)  and  mitofusin  2
          病。E-mail:f13838273641@163.com
                                                             (Mfn2) were detected in the kidney tissues of rats. RESULTS
              # 通信作者 教授,主任医师,博士生导师,博士。研究方向:儿童
          肾脏病及风湿免疫性疾病。E-mail:scd670918@126.com                Compared  with  model  group,  24  h-UTP,  urinary  erythrocyte


          · 2984 ·    China Pharmacy  2024 Vol. 35  No. 24                            中国药房  2024年第35卷第24期
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