Home > Archive>Volume 14, Issue 2, 2021 >186-193. DOI:10.18240/ijo.2021.02.02
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Effect of luteolin on apoptosis and vascular endothelial growth factor in human choroidal melanoma cells
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Hong-Fei Liao. Department of Ophthalmology, the Affiliated Eye Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China. lhfzf@126.com

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    Abstract:

    AIM: To investigate the effects of luteolin on apoptosis, the cell cycle, and the expression and secretion of vascular endothelial growth factor (VEGF) in human choroidal melanoma cells (C918 and OCM-1). METHODS: C918 and OCM-1 cells cultured in vitro were treated with various concentrations of luteolin (0, 5, 10, 15 μmol/L). Cell growth was observed with an inverted microscope, and cell cycle arrest was detected by propidium iodide (PI) staining using flow cytometry. Apoptosis was detected by Hoechst33342 staining, and apoptosis rate was determined by Annexin V-FITC/PI experiments using flow cytometry. The expression of apoptosis-related proteins Bcl-2, Bax and VEGF was analyzed using Western blots. The levels of VEGF secreted by the cells into the supernatant was analyzed using ELISA. RESULTS: After treating with 5 to 15 μmol/L luteolin for 48h, the fusion degree of C918 and OCM-1 cells decreased, and more floating apoptotic cells appeared. Luteolin treatment increased the G0-G1 phase ratio of the C918 and OCM-1 cells, blocked cell cycle progression, and increased the apoptosis rate of the C918 and OCM-1 cells. Western blot showed that luteolin decreased the expression of Bcl-2 and VEGF in the C918 and OCM-1 cells and increased the expression of Bax protein. The ELISA results showed that 10 to 15 μmol/L luteolin decreased the cell secretion of VEGF. CONCLUSION: Luteolin may induce apoptosis by regulating the levels of apoptosis-related proteins in C918 and OCM-1 cells. Luteolin can induce cell cycle arrest, decrease the expression of VEGF.

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Meng-Lin Shi, Yu-Fen Chen, Hong-Fei Liao. ,/et al.Effect of luteolin on apoptosis and vascular endothelial growth factor in human choroidal melanoma cells. Int J Ophthalmol, 2021,14(2):186-193

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Publication History
  • Received:August 09,2020
  • Revised:October 12,2020
  • Online: December 24,2020
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