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中华细胞与干细胞杂志(电子版) ›› 2023, Vol. 13 ›› Issue (06) : 339 -345. doi: 10.3877/cma.j.issn.2095-1221.2023.06.003

论著

蟛蜞菊内酯上调miR-190表达抑制高糖诱导的人视网膜血管内皮细胞凋亡
余玲玲1,(), 彭倪2, 刘小虎3, 刘聪慧4   
  1. 1. 611523 邛崃,四川省邛崃市中医医院眼科
    2. 611523 邛崃,四川省邛崃市中医医院肛肠科
    3. 610000 成都,四川省成都中医大银海眼科医院
    4. 611000 成都,西部战区空军医院眼科
  • 收稿日期:2023-10-08 出版日期:2023-12-01
  • 通信作者: 余玲玲

Wedelolctone upregulates miR-190 expression to inhibit human retinal vascular endothelial cell apoptosis induced by high glucose

Lingling Yu1,(), Ni Peng2, Xiaohu Liu3, Conghui Liu4   

  1. 1. Department of Ophthalmology, Qionglai Hospital of Traditional Chinese Medicine, Qionglai Sichuan 611523, China
    2. Department of Proctology, Qionglai Hospital of Traditional Chinese Medicine, Qionglai Sichuan 611523, China
    3. Chengdu Yinhai Eye Hospital of Traditional Chinese Medicine, Chengdu Sichuan, 610000, China
    4. Ophthalmology Department of Western Theater Air Force Hospital, Chengdu Sichuan, 611000, China
  • Received:2023-10-08 Published:2023-12-01
  • Corresponding author: Lingling Yu
引用本文:

余玲玲, 彭倪, 刘小虎, 刘聪慧. 蟛蜞菊内酯上调miR-190表达抑制高糖诱导的人视网膜血管内皮细胞凋亡[J/OL]. 中华细胞与干细胞杂志(电子版), 2023, 13(06): 339-345.

Lingling Yu, Ni Peng, Xiaohu Liu, Conghui Liu. Wedelolctone upregulates miR-190 expression to inhibit human retinal vascular endothelial cell apoptosis induced by high glucose[J/OL]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2023, 13(06): 339-345.

目的

探讨蟛蜞菊内酯(WEL)对高糖(HG)诱导的人视网膜血管内皮细胞(HRECs)损伤的影响和分子机制。

方法

采用低(10 μmol/L )、中(20 μmol/L )、高(40 μmol/ L)剂量WEL(WEL-L、WEL-M、WEL-H)处理或miR-190模拟物/抑制剂转染HRECs后,用30 mmol/L葡萄糖孵育HRECs 24 h建立细胞损伤模型。试剂盒检测细胞中活性氧(ROS)水平、超氧化物歧化酶(SOD)活性和丙二醛(MDA)含量;流式细胞测量术分析细胞凋亡;RT- qPCR检测miR-190表达。采用独立样本t检验和单因素方差分析进行统计学差异比较。

结果

WEL-L、WEL-M、WEL-H处理可降低HG诱导的HRECs凋亡率[(24.22 ± 2.16)%、(17.17 ± 1.19)%、(9.89 ± 0.86)%比(31.67 ± 3.02)%]、MDA含量、ROS水平,升高miR- 190表达(0.42 ± 0.04、0.59 ± 0.04、0.72 ± 0.06比0.28 ± 0.03)和SOD活性(P < 0.01)。过表达miR-190降低HG诱导的HRECs凋亡率[(12.98 ± 1.06)%比(32.28 ± 3.03)%]、MDA含量、ROS水平,增高SOD活性(P < 0.01)。下调miR-190逆转了WEL对HG诱导的HRECs凋亡率[(25.57 ± 2.49)%比(9.79 ± 0.87)%]、MDA含量、ROS水平及SOD活性的影响(P < 0.01)。

结论

蟛蜞菊内酯减轻HG诱导的HRECs氧化应激损伤和凋亡,其机制与上调miR-190有关。

Objective

To investigate the effects and molecular mechanisms of wedelolactone (WEL) on injury of human retinal vascular endothelial cells (HRECs) induced by high glucose (HG) .

Methods

After being treated with low (10 μmol/L), medium (20 μmol/ L) and high (40 μmol/ L) doses of WEL (WEL-L, WEL-M and WEL-H) or transfected with miR- 190 mimics/ inhibitors, the cell injury model was established by incubating HRECs with 30 mmol/L glucose for 24 h. The kit was used to detect cellular reactive oxygen species (ROS), superoxide dismutase (SOD) and malondialdehyde (MDA) content; cell apoptosis was analyzed by flow cytometry; miR-190 expression was detected by RT-qPCR. Independent sample t test and one-way analysis of variance were used for statistical comparison.

Results

Low, medium and high doses of WEL could reduce HG induced apoptosis rate of HRECs [ (24.22 ± 2.16) %, (17.17 ± 1.19) %, (9.89 ± 0.86) % vs (31.67 ± 3.02) %], MDA content and ROS level, and increased the expression of miR-190 (0.28 ± 0.03 vs 0.42 ± 0.04, 0.59 ± 0.04, 0.72 ± 0.06) and SOD activity (P < 0.01). Overexpression of miR- 190 decreased apoptosis rate [ (32.28 ± 3.03) % vs (12.98 ± 1.06) %], MDA content and ROS level of HRECs induced by HG, and increased SOD activity (P < 0.01). Down-regulation of miR-190 reversed the effects of WEL on apoptosis rate [ (9.79 ± 0.87) % vs (25.57 ± 2.49) %], MDA content, ROS level and SOD activity of HRECs induced by HG (P < 0.01) .

Conclusion

Wedelolactone alleviates oxidative stress injury and apoptosis of HRECs induced by HG, and the mechanism is related to up-regulation miR-190.

表1 引物序列信息
表2 蟛蜞菊内酯对高糖诱导HRECs氧化应激的影响(±s
表3 蟛蜞菊内酯对高糖诱导HRECs凋亡的影响(±s
图1 蟛蜞菊内酯对高糖诱导HRECs凋亡的影响注:a ~ e图分别为对照、HG、HG+WEL-L、HG+WEL-M、HG+WELl-H
图2 cleaved caspase-3和cleaved caspase-9蛋白表达条带
图3 蟛蜞菊内酯对高糖诱导的HRECs miR-190表达的影响注:与对照比较,aP < 0.01;与HG比较,bP < 0.01 ;与HG+WEL-L比较,cP < 0.01;与HG+WEL-M比较,dP < 0.01
表4 miR-190过表达对高糖诱导HRECs氧化应激的影响(±s
表5 过表达miR-190对高糖诱导HRECs凋亡的影响(±s
图4 过表达miR-190对高糖诱导HRECs凋亡的影响注:a图HG+miR-NC,b图为HG+miR-190;c图为Western blot检测cleaved caspase-3和cleaved caspase-9蛋白表达
表6 下调miR-190恢复了蟛蜞菊内酯对高糖诱导HRECs损伤的作用(±s
图5 下调miR-190恢复了蟛蜞菊内酯对高糖诱导HRECs凋亡的作用注:a图为HG+WEL+anti-miR-NC,b图为HG+WEL+anti-miR-190;c图为Western blot检测cleaved caspase-3和cleaved caspase-9蛋白表达
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