Effects of eicosanoic acid on proliferation and migration of human retinal vascular endothelial cells by mediating increased expression of angiopoietin-like protein 4 after binding to peroxisome proliferator-activated receptor 8
10.13389/j.cnki.rao.2024.0130
- VernacularTitle:二十烷二酸通过结合PPARδ介导ANGPTL4表达增多对人视网膜血管内皮细胞增殖和迁移的影响
- Author:
Yuhang YANG
1
;
Hui QI
;
Lijun DONG
;
Zixin FAN
;
Xiaofeng LU
;
Mingliang WANG
;
Zhen YU
;
Hetian LEI
;
Guoming ZHANG
Author Information
1. 518040 广东省深圳市,深圳市眼科医院
- Keywords:
eicosanoic acid(C20DC);
retinopathy of prematurity;
angiopoietin-like protein 4;
peroxisome prolifera-tor-activated receptor;
fatty acids;
retinal microvascular endothelial cells
- From:
Recent Advances in Ophthalmology
2024;44(9):679-685
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of eicosanoic acid(C20DC)on the proliferation and migration of human retinal endothelial cells(HRECs)and its mechanism.Methods The optimal working concentration of C20DC in human retinal pigment epithelium 19(ARPE-19)cells and HRECs was determined as 30 mg·L-1 and 25 mg·L-1,respec-tively.HRECs were divided into the C20DC treatment group(HRECs treated with C20DC)and the control group[HRECs treated with dimethyl sulfoxide(DMSO)].The effects of C20DC on the migration and proliferation of HRECs were detec-ted by cell proliferation and migration experiments.The molecular docking method was used to simulate the binding ability of C20DC to peroxisome proliferator-activated receptor δ(PPARδ).ARPE-19 cells were divided into the C20DC+ARPE-19 group(ARPE-19 cells treated with C20DC)and the DMSO+ARPE-19 group(ARPE-19 cells treated with DMSO).The ex-pression levels of PPARδ and angiopoietin-like protein 4(ANGPTL4)in ARPE-19 cells and ANGPTL4 protein in HRECs were detected using Western blot.The ANGPTL4 protein expression levels in ARPE-19 cells and HRECs were quantitatively analyzed using enzyme-linked immunosorbent assay(ELISA).Results Compared with the control group,the prolifera-tion and migration of cells in the C20DC treatment group significantly increased(both P＜0.05),and C20DC could stably bind to PPAR8(binding energy:-7.20 kcal·mol-1).Western blot showed that the expression level of ANGPTL4 protein in the C20DC+ARPE-19 group was higher than that in the DMSO+ARPE-19 group,and the difference was statistically sig-nificant(P＜0.05);there was no statistically significant difference in the expression level of PPARδ receptor protein be-tween the two groups(P＞0.05).The expression level of ANGPTL4 protein in the C20DC treatment group was higher than that in the control group,and the difference was statistically significant(P＜0.05).ELISA quantitative analysis showed that the expression level of ANGPTL4 in the C20DC+ARPE-19 group was higher than that in the DMSO+ARPE-19 group(P＜0.001);the expression level of ANGPTL4 in the C20DC treatment group was higher than that in the control group,and the difference was statistically significant(P＜0.05).Conclusion C20DC can promote the expression of ANGPTL4 pro-tein by binding to PPARδ and thus increase the proliferation and migration of retinal related cells(HRECs and ARPE-19 cells).Its mechanism may be related to the increased angiogenesis in retinopathy of prematurity.
