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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
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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