实用医学杂志 ›› 2021, Vol. 37 ›› Issue (2): 164-169.doi: 10.3969/j.issn.1006⁃5725.2021.02.008

• 基础研究 • 上一篇    下一篇

回回甘松饮对糖尿病肾病大鼠miR⁃192 TGF⁃β1/Smads 的调控作用

袁玲,李嘉欣,鲁玉梅,南一
  

  1. 宁夏医科大学1 药学院药理学与毒理学系,2 中医学院中医内科学系(银川 750004); 3 回医药现代化教育部重点实验室(银川 750004)

  • 出版日期:2021-01-25 发布日期:2021-01-25
  • 通讯作者: 南一 E⁃mail:nanyiailing@sina.com
  • 基金资助:
    国家自然科学基金项目(编号:81573695,81674096);教育部“春晖计划”合作项目(编号:Z2016065)

Hui ⁃hui Gan ⁃ song Yin regulatedrat diabetic nephropathy through miR ⁃ 192⁃mediated TGF ⁃ β1/Smads signaling pathway

YUAN Ling,LI Jiaxin,LU Yumei,NAN Yi.   

  1. Department of Pharmacology and Toxicology School of Pharmacy,Ningxia Medical University,Yinchuan 750004,China;*Ningxia Medical University to build the key Laboratory of the Ministry of Education with the Ministry of Modern Medicine,Yinchuan 750004,China

  • Online:2021-01-25 Published:2021-01-25
  • Contact: NAN Yi E⁃mail:nanyiailing@sina.com

摘要:

目的 探究回回甘松饮(Hui⁃hui Gan⁃song Yin,HGY)对糖尿病肾病(diabetic nephropathy DN)大鼠肾小球的保护作用。方法 随机选取 10 只大鼠作为空白对照组(NC)。选用高脂饲料喂养 SD鼠联合链脲佐菌素的方法复制大鼠早期 DN 模型,DN 模型复制成功的大鼠随机分为:DN 模型组(DN)、格列喹酮组(DN+Gli,10 mg/kg)及回回甘松饮高剂量组(DN+HH,10 g/kg)、回回甘松饮低剂量组(DN+HL 5 g/kg),每组 10 只。采用实时荧光定量 PCR 方法检测肾组织中 miR⁃192、靶基因 Zeb2 TGF⁃β1/Smads 号通路中 TGF⁃β1、Smad3、Smad7 mRNA 的表达,采用 Western blot 方法检测所对应蛋白的表达。结果 空白对照组比较,模型组大鼠肾组织 TGF⁃β1、Smad3 蛋白及 miR⁃192、TGF⁃β1、Smad3 mRNA 表达水平显著 升高(P<0.01),而 Smad7、SIP1蛋白及Zeb2 Smad7 mRNA 表达水平显著降低(P<0.01);与模型组比较, 给予HGY及格列喹酮干预后,大鼠 TGF⁃β1 miR⁃192、TGF⁃β1、Smad3 mRNA 水平显著下降(P<0.01), Smad7、S1P1 蛋白及 Zeb2、Smad7 mRNA表达水平显著升高。结论 HGY DN 大鼠肾脏中可能通过调 miR⁃192 介导的 TGF⁃β1/Smads 信号通路改善肾脏细胞外基质堆积,从而起到保护早期 DN 大鼠肾脏

关键词:

Abstract:

Objective To investigate the protective effect of Hui⁃Hui Gan⁃song Yin(HGY)on the glomer⁃ ulus of diabetic nephropathy(DN)in rats. Methods Ten rats were randomized into the normal control group (NC). The early DN models of SD rats were reproduced by high fat feed combined with streptozotocin. The rat DN models were randomly divided into DN model groups(DN),Glenn sinensis group(DN + Gli,10 mg/kg),spikenard drink high dose group(DN + HH,10 g/kg),and spikenard drinking low dose group(DN + HL,5 g/kg),10 rats in each group. MRNA expression of miR⁃192,the target genes of Zeb2 and TGF⁃β1,Smad3 and Smad7 in renal tissue was detected by real⁃time fluorescence quantitative PCR. Western blot was used to detect the protein expres⁃ sion of the above genes. Results Compared with the blank control group,the mRNA levels of TGF⁃β1,Smad3 and miR⁃192 in the renal tissue of the DN model group was significantly increased(P < 0.01,respectively),while the mRNA expression of Smad7,S1P1 and Zeb2 and Smad7 was significantly decreased(P < 0.01,respectively). Compared with the DN model group,the mRNA levels of TGF⁃β1,miR⁃192 and Smad3 were significantly decreased (P < 0.01,respectively),and the mRNA expression of Smad7,S1P1,Zeb2 and Smad7 was significantly increased after the treatment of HGY. Conclusion HGY may improve the accumulation of extracellular matrix in the kidney of DN rats by regulating miR⁃192⁃mediated TGF⁃β1/Smads signaling pathway,contributing to protecting the kid⁃ 

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