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陈 洁,罗敏虹,陈兴强,张 萌,符薇薇.miRNA-9-5p与NF-κB信号通路在2型糖尿病肾病发病中的作用机制[J].现代生物医学进展英文版,2019,19(17):3239-3243.
miRNA-9-5p与NF-κB信号通路在2型糖尿病肾病发病中的作用机制
The Role of microRNA9-5p and NF-kappa B Signaling Pathway in the Pathogenesis of Type 2 Diabetic Nephropathy
Received:March 15, 2019  Revised:April 10, 2019
DOI:10.13241/j.cnki.pmb.2019.17.008
中文关键词: 糖尿病肾病  核转录因子-κB  miRNA-9-5p  细胞因子
英文关键词: Diabetic nephropathy  NF-κB  miRNA-9-5p  Cell factor
基金项目:海南省普通医学科研资助项目(14A210072)
Author NameAffiliationE-mail
CHEN Jie Department of Nephrology, Sanya People's Hospital of Hainan Province, Sanya, Hainan, 572000, China 13198909666@139.com 
LUO Min-hong Department of Nephrology, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen, Guangdong, 518000, China  
CHEN Xing-qiang Department of Nephrology, Sanya People's Hospital of Hainan Province, Sanya, Hainan, 572000, China  
ZHANG Meng Department of Nephrology, Sanya People's Hospital of Hainan Province, Sanya, Hainan, 572000, China  
FU Wei-wei Department of Nephrology, Sanya People's Hospital of Hainan Province, Sanya, Hainan, 572000, China  
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中文摘要:
      摘要 目的:探讨miRNA-9-5p与NF-κB信号通路在2型糖尿病肾病发病中的作用机制。方法:将80只db/db小鼠随机分为糖尿病肾病组、糖尿病肾病+罗格列酮组、糖尿病肾病+miRNA-9-5p组、糖尿病肾病+阴性对照组,每组20只,分别给予生理盐水、噻唑烷二酮类抗糖尿病药马来酸罗格列酮、miRNA-9-5p、miRNA-9-5p阴性对照核酸,10 μg/d腹腔注射。另将20只健康db/m小鼠作为对照组。观察各组空腹血糖(FBG)、餐后血糖(PBG)、肾脏指数、24h尿量、肾脏组织变化,检测血清NF-κB信号通路关键因子单核细胞趋化因子蛋白-1(MCP-1)、肿瘤坏死因子-α(TNF-α)和白细胞介素-6(IL-6),及肾脏组织NF-κB mRNA、NF-κB p65蛋白水平。结果:糖尿病肾病组FBG、PBG、24 h尿量均高于对照组,肾脏指数低于对照组(P<0.05)。糖尿病肾病+罗格列酮组和糖尿病肾病+miRNA-9-5p组小鼠FBG、PBG、24 h尿量低于糖尿病肾病组,肾脏指数高于糖尿病肾病组(P<0.05)。糖尿病肾病组小鼠血清MCP-1、TNF-α、IL-6水平,肾脏组织NF-κB mRNA、NF-κB p65蛋白水平均高于对照组(P<0.05)。糖尿病肾病+罗格列酮组和糖尿病肾病+miRNA-9-5p组血清MCP-1、TNF-α、IL-6水平,肾脏组织NF-κB mRNA、NF-κB p65蛋白水平低于糖尿病肾病组(P<0.05)。结论:NF-κB在糖尿病肾病发病中起到重要作用,miRNA-9-5p可以阻断NF-κB信号通路,下调MCP-1、TNF-α、IL-6的表达,抑制糖尿病肾病的发生和发展。
英文摘要:
      ABSTRACT Objective: To investigate the role of miRNA-9-5p and NF-κB signaling pathway in the pathogenesis of type 2 diabetic nephropathy. Methods: 80 cases of db/db mice were randomly divided into diabetic nephropathy group, diabetic nephropathy+rosiglitazone group, diabetic nephropathy+miRNA-9-5p group, diabetic nephropathy+negative control group, 20 cases in each group, which were respectively given physiological saline, thiazolidinediones two antidiabetic drugs rosiglitazone maleate, miRNA-9-5p, miRNA-9-5p negative control nucleic acid with 10 μg/d intraperitoneal injection. Selected another 20 cases of healthy db/m mice as the control group. Fasting blood glucose (FBG), postprandial blood glucose (PBG), renal index, 24 h urine volume and renal tissue changes were observed in each group, and detected levels of serum NF-κB signaling pathway critical factor monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and expression of NF-κB mRNA, NF-κB p65 in renal tissue. Results: FBG, PBG, 24h urine volume of diabetic nephropathy group were higher than that of control group, renal index was lower than that of control group (P<0.05). FBG, PBG, 24h urine volume of diabetic nephropathy+rosiglitazone group,diabetic nephropathy+ miRNA-9-5p group were lower than that of diabetic nephropathy group,renal index was higher than that of diabetic nephropathy group (P<0.05). The levels of serum MCP-1, TNF-α, IL-6 and expression of NF-κB mRNA, NF-κB p65in renal tissue in the diabetic nephropathy were higher than control group (P<0.05). The levels of serum MCP-1, TNF-α, IL-6 and expression of NF-κB mRNA, NF-κB p65 in renal tissue of the diabetic nephropathy+rosiglitazone group, the diabetic nephropathy+miRNA-9-5p group were lower than that of in the diabetic nephropathy group (P<0.05). Conclusion: NF-κB plays an important role in the pathogenesis of diabetic nephropathy, miRNA-9-5p can block the signal pathway of NF-κB, down regulate the expression of MCP-1, TNF-α, IL-6, inhibit the occurrence and development of diabetic nephropathy.
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