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Volume 37 Issue 9
Sep.  2021
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Article Navigation >  CHINESE JOURNAL OF BURNS AND WOUNDS  > 2021  >  37(9): 869-874
Guo XY,Zhou XQ,Xie WG.Effects and mechanism of estrogen receptor β agonist on the migration and oxidative stress of human umbilical vein endothelial cell under high glucose condition[J].Chin J Burns,2021,37(9):869-874.DOI: 10.3760/cma.j.cn501120-20200720-00352.
Citation: Guo XY,Zhou XQ,Xie WG.Effects and mechanism of estrogen receptor β agonist on the migration and oxidative stress of human umbilical vein endothelial cell under high glucose condition[J].Chin J Burns,2021,37(9):869-874.DOI: 10.3760/cma.j.cn501120-20200720-00352.
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Effects and mechanism of estrogen receptor β agonist on the migration and oxidative stress of human umbilical vein endothelial cell under high glucose condition

doi: 10.3760/cma.j.cn501120-20200720-00352

  • Institute of Burns, Tongren Hospital of Wuhan University＆Wuhan Third Hospital, Wuhan 430060, China Corresponding author: Xie Weiguo, Email: wgxie@hotmail.com

Funds:

General Program of National Natural Science Foundation of China 81772097

  • Received Date: 2020-07-20
    Abstract
  •   Objective  To investigate the effects and related mechanism of estrogen receptor β (ERβ) agonist on the migration and oxidative stress of human umbilial vein endothelial cells (HUVECs) under high glucose condition.  Methods  The experimental research method was adopted. HUVECs were routinely cultured and passaged, and then cells of the logarithmic growth phase were collected for the subsequent experiments. The cells were divided into three groups according to the random number table, including normal control group (cultured with Roswell Park Memorial Institute 1640 cell culture medium (the same cell culture medium below) containing 5.5 mmol/L D-glucose), high glucose alone group (cultured with cell culture medium containing 25.0 mmol/L D-glucose alone), and high glucose+ERβ agonist diarylpropionitrile (DPN) group (cultured with cell culture medium containing 25.0 mmol/L D-glucose and 10 μmol/L DPN). Scratch test was conducted to detect the cell migration rate in the 3 groups at 24 h post scratching. Fluorescent probe method was used to detect the reactive oxygen species (ROS, denoted by red fluorescence intensity) of cells in the 3 groups on 5 d post culture. Western blotting was used to detect the protein expression levels of vascular endothelial growth factor (VEGF) and superoxide dismutase 2 (SOD2) of cells in the 3 groups on 5 d post culture. In the above-mentioned experiments, cells were grouped and cultured correspondingly as before, the number of samples in each group was 5. Data were statistically analyzed with one-way analysis of variance and least significant difference t test.  Results  At 24 h post scratching, the cell migration rate in high glucose alone group was (36±5)%, which was significantly lower than (76±4)% of normal control group and (65±5)% of high glucose+DPN group (t=14.511, 9.603, P<0.01), and the cell migration rate in high glucose+DPN group was significantly lower than that in normal control group (t=3.943, P<0.01). On 5 d post culture, the level of ROS of cells in high glucose alone group (1.81±0.12) was significantly increased compared with normal control group and high glucose+DPN group (1.00±0.14, 0.91±0.15, t=9.679, 10.549, P<0.01), while the level of ROS of cells in normal control group and high glucose+DPN group were close (t=1.031, P>0.05). On 5 d post culture, the protein expression levels of VEGF and SOD2 of cells in high glucose alone group were significantly lower than the levels of normal control group (t=14.175, 13.787, P<0.01) and high glucose+DPN group (t=6.321, 17.750, P<0.01). The protein expression level of VEGF of cells in high glucose+DPN group was significantly lower than the level of normal control group (t=7.206, P<0.05), while the protein expression level of SOD2 of cells in high glucose+DPN group was significantly higher than the level of normal control group (t=2.890, P<0.05).  Conclusions  The activation of ERβ can improve the inhibition of HUVECs migration induced by high glucose and alleviate oxidative stress injury induced by high glucose, which may be achieved by promoting the expression of VEGF and SOD2.

     

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