医学分子生物学杂志 ›› 2024, Vol. 21 ›› Issue (6): 557-561.doi: 10.3870/j.issn.1672-8009.2024.06.009

• 论著 • 上一篇    下一篇

miR-660-5p 调控 P53 对高糖诱导的肾小球系膜细胞损伤的影响 #br#

  

  1. 河北省眼科医院内科 河北省邢台市, 054001
  • 出版日期:2024-11-30 发布日期:2024-12-09
  • 基金资助:
    2021 年度河北省医学科学研究课题计划 (No. 20210540)

Effect of miR-660-5p on High Glucose-induced Glomerular Mesangial Cell Injury by Regulation of P53 #br#

  1. Department of Internal Medicine, Hebei Provincial Ophthalmology Hospital, Xingtai, Hebei, 054001, China
  • Online:2024-11-30 Published:2024-12-09

摘要: 目的 探索 miR-660-5p 调控 P53 对高糖诱导的肾小球系膜细胞损伤的影响方法 首先将肾小球系膜细胞 SV40-MES-13 细胞分为 2 : 对照组和高糖组, 用于分析高糖对 SV40-MES-13 细胞活性及 miR- 660-5p / P53 表达的影响然后将高糖处理过后的 SV40-MES-13 细胞分为 4 : miR NC 、 miR-660-5p mimic 、 si NC 组与 si P53 实时荧光定量 PCR 实验检测 SV40-MES-13 细胞中 miR-660-5p P53 的表达水平; 噻唑蓝试剂法 (MTT) 分析 SV40-MES-13 细胞的生长能力; 原位末端标记法 ( TUNEL) 以及流式细胞术分析 SV40-MES-13 细胞的凋亡率; Targetscan 检索以及荧光素酶报告基因实验分析 SV40-MES-13 细胞中 miR-660-5p P53 的靶向作用关系; 蛋白质印迹分析 P53 蛋白的表达结果 与对照组比较, 高糖处理后导致 SV40-MES-13 细胞增殖活性降低, 凋亡率增加, miR-660-5p 表达降低而 P53 表达增加miR-660- 5p NC 组比较, miR-660-5p mimic 处理后的 SV40-MES-13 细胞增殖活性增加, 凋亡率降低si NC 组比较, si P53 处理后的 SV40-MES-13 细胞增殖活性增加, 凋亡率降低。 miR-660-5p P53 存在结合域, 且能抑制 P53 表达结论 高糖处理肾小球系膜细胞后, miR-660-5p 表达水平降低, P53 表达水平增加, 上调肾小球系膜细胞的 miR-660-5p 的表达后, 高糖处理后的肾小球系膜细胞增殖活性增加, 凋亡率下降, 并且miR-660-5p 的这一作用与抑制 P53 的表达相关

关键词: miR-660-5p, P53, 肾小球系膜细胞, SV40-MES-13, 糖尿病肾病, 凋亡, 增殖

Abstract: Objective To investigate the effect of miR-660-5p on high glucose-induced glomerular mesangial cell injury by regulating P53. Methods SV40-MES-13 cells were divided into two groups: control group and high glucose group, to analyze the effect of high glucose on cell viability and expression of miR-660-5p / P53. Then SV40-MES-13 cells treated with high glucose were divided into four groups: miR NC group, miR-660-5p mimic group, siNC group and siP53 group. The expression levels of miR-660-5p and P53 in SV40-MES-13 cells were detected by real-time fluorescence quantitative PCR. The growth ability of SV40-MES-13 cells was analyzed by methyl thiazolyl tetrazolium (MTT) assay. The apoptosis rate of SV40-MES-13 cells was analyzed by TUNEL and flow cytometry. Targetscan and luciferase reporter assay were used to analyze the targeting relationship between miR-660-5p and P53 in SV40-MES-13 cells. The expression level of P53 protein wasanalyzed by Western blotting. Results Compared with cells in the control group, SV40-MES-13cells treated with high glucose showed decreased proliferation activity, increased apoptosis rate, decreased expression level of miR-660-5p and increased expression level of P53. The proliferation activity of SV40-MES-13 cells treated with miR-660-5p mimic was increased, and the apoptosis rate was decreased when compared with those in the miR-660-5p NC group. The proliferation activity of SV40-MES-13 cells treated with siP53 was increased, and the apoptosis rate was decreased when compared with those in the siNC group. miR-660-5p could bind with P53 and inhibit the expressionof P53. Conclusion The expression level of miR-660-5p is decreased and the expression level ofP53 is increased in high glucose-treated mesangial cells. Up-regulation of miR-660-5p expression in high glucose-treated mesangial cells increases the proliferation activity and decreases the apoptosis rate, and the effect of miR-660-5p is related to the inhibition of P53 expression.

Key words:

miR-660-5p, P53, glomerular mesangial cells, SV40-MES-13, diabetic nephropathy, apoptosis, proliferation

中图分类号: