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Published:
Apr 19, 2023Keywords:
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Main Article Content
Circ_0001953 contribute to retinal vascular endothelial cell injury induced by high glucose through regulating miR 186
Abstract
Purpose: To investigate the effects of circ_0001953/miR-186 on human retinal vascular endothelial cell (HRVEC) injury evoked by high glucose.
Methods: A cell model (HG group) was established using high glucose-treated HRVECs, while untreated HRVECs were used as the control group (Con group). The levels of endothelin-1 (ET-1), ICAM-1 and IL-6 were evaluated by ELISA and the content of malondialdehyde (MDA) and superoxide dismutase (SOD) in HRVECs were determined. Apoptosis rate was tested adopting flow cytometry. The interrelationship between circ_0001953 and miR-186 was assessed using dual luciferase reporter assay. Measurement of Bax and Bcl-2 was implemented via western blot.
Results: In HG group, circ_0001953 increased while miR-186 was downregulated, ET-1, IL-6, ICAM-1, and apoptosis rate increased and accompanied with up-regulated Bax content and declined Bcl-2 protein level. Furthermore, the content of MDA increased and SOD decreased. MiR-186 was a target of circ_0001953.
Conclusion: Inhibition of circ_0001953 can repress inflammation, oxidative stress and apoptosis in HRVECs by up-regulating the expression of miR-186.
