Quercetin Inhibits Vascular Endothelial Growth Factor-Induced Choroidal and Retinal Angiogenesis in vitro

被引:42
|
作者
Li, Fangting [1 ,2 ,3 ]
Bai, Yujing [1 ,2 ,3 ]
Zhao, Min [1 ,2 ,3 ]
Huang, Lvzhen [1 ,2 ,3 ]
Li, Shanshan [1 ,2 ,3 ]
Li, Xiaoxin [1 ,2 ,3 ]
Chen, Yi [1 ,2 ,3 ]
机构
[1] Peking Univ, Peoples Hosp, Dept Ophthalmol, Beijing 100044, Peoples R China
[2] Minist Educ, Key Lab Vis Loss & Restorat, Beijing, Peoples R China
[3] Beijing Key Lab Diag & Therapy Retinal & Choroid, Beijing, Peoples R China
关键词
Choroidal and retinal angiogenesis; Rhesus macaque choroid-retinal endothelial (RF/6A) cell line Quercetin; Vascular endothelial growth factor; BREAST-CANCER CELLS; DIABETIC-RETINOPATHY; ANTIOXIDANT CAPACITY; FLAVONOIDS; VEGF; DISEASE; BEVACIZUMAB; BIOLOGY;
D O I
10.1159/000369824
中图分类号
R77 [眼科学];
学科分类号
100212 ;
摘要
Purpose: The aim of this study was to investigate the effects of quercetin on vascular endothelial growth factor (VEGF)induced choroidal and retinal angiogenesis in vitro using a rhesus macaque choroid-retinal endothelial (RF/6A) cell line. Methods: RF/6A cells were cultured in Dulbecco's modified Eagle's medium containing 10% fetal bovine serum. Then the cells were treated with different concentrations (from 0 to 100 mu M) of quercetin and 100 ng/ml VEGF. The cell proliferation was assessed using cholecystokinin octapeptide dye. The cell migration was investigated by a Transwell assay. The tube formation was measured on Matrigel. Furthermore, the impact of quercetin's effects on VEGF-induced activation of VEGF receptor 2 (VEGFR-2) downstream signal pathways was tested by Western blot analysis. Results: Quercetin inhibits RF/6A cell proliferation in a dose-dependent fashion: 22.7, 31.5 and 36.7% inhibition on treatment with 10, 50 and 100 mu M quercetin, respectively. VEGF-induced migration and tube formation of RF/6A cells were also significantly inhibited by quercetin in a dose-dependent manner. Quercetin inhibits VEGF-induced VEGFR-2 downstream signal pathways of RF/6A. Conclusions: The results show that quercetin inhibits VEGF-induced cell proliferation, migration and tube formation of RF/6A. We suggest that quercetin inhibits VEGF-induced choroidal and retinal angiogenesis in vitro. Collectively, the findings in the present study suggest that quercetin inhibits VEGF-induced choroidal and retinal angiogenesis by targeting the VEGFR-2 pathway. This suggests that quercetin is a choroidal and retinal angiogenesis inhibitor. (C) 2015 S. Karger AG, Basel
引用
收藏
页码:109 / 116
页数:8
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