Horm Metab Res 2023; 55(02): 142-148
DOI: 10.1055/a-1982-3926
Original Article: Endocrine Research

MiR-99a-5p Inhibits the Proliferation and Migration of Human Retinal Microvascular Endothelial Cells by Targeting NOX4

Haizhen Yu+
1   Department of Clinical Laboratory, Zhucheng People’s Hospital, Weifang, China
,
Xu Zhang+
2   Department of Ophthalmology, Shanghai Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
,
Xuyang Wang
3   Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Opthalmic Center, Sun Yat-sen University, Haikou, Hainan, China
,
Wangling Chen
3   Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Opthalmic Center, Sun Yat-sen University, Haikou, Hainan, China
,
Wei Lao
3   Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Opthalmic Center, Sun Yat-sen University, Haikou, Hainan, China
,
Yunxin Chen
3   Hainan Eye Hospital and Key Laboratory of Ophthalmology, Zhongshan Opthalmic Center, Sun Yat-sen University, Haikou, Hainan, China
› Author Affiliations
Funding Information Project supported by Hainan Province Key Laboratory of Ophthalmology- Clinical Medical Center.

Abstract

Diabetic retinopathy is one of the common microvascular complications of diabetes, and it is the main cause of vision loss among working-age people. This study interpreted the roles of miR-99a-5p in DR patients and human retinal microvascular endothelial cell (hRMECs) injury induced by high glucose. The expression of miR-99a-5p was detected in patients with NDR, NPDR, and PDR. The indictive impacts of miR-99a-5p were tested by the ROC curve, and the link between miR-99a-5p and clinical information was verified by the Pearson test. HG was used to instruct cell models. The CCK-8 and transwell methods were performed to detect the proliferative and migrated cells. The targeted relationship was explained by luciferase activity. The content of miR-99a-5p was gradually lessened in NPDR and PDR patients. MiR-99a-5p might differentiate DR patients from NDR patients and PDR patients from NPDR patients. The interconnection between miR-99a-5p and clinical factors was endorsed in all DR patients. Overexpression of miR-99a-5p assuaged the abnormality of cell migration and proliferation of hRMECs triggered by HG. NOX4 was a downstream signaling component of miR-99a-5p. In conclusion, MiR-99a-5p protected hRMECs against HG damage, and the miR-99a-5p might be a novel target for diagnosis of DR.

+ The first two authors contributed equally to this work.




Publication History

Received: 10 August 2022

Accepted after revision: 09 November 2022

Article published online:
11 January 2023

© 2023. Thieme. All rights reserved.

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