LncRNA MIR497HG inhibits proliferation and migration of retinal endothelial cells under high-level glucose treatment via miRNA-128-3p/SIRT1 axis.
Eur Rev Med Pharmacol Sci
; 24(11): 5871-5877, 2020 06.
Article
in En
| MEDLINE
| ID: mdl-32572899
ABSTRACT
OBJECTIVE:
The aim of this study was to elucidate the potential influence of MIR497HG on regulating proliferative capacity of human retinal endothelial cells (HRECs). MATERIALS ANDMETHODS:
Relative expression levels of MIR497HG, microRNA-128-3p (miRNA-128-3p) and SIRT1 in HRECs treated with different doses of glucose and mannitol were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Dual-Luciferase reporter gene assay was conducted to assess the interaction among MIR497HG, miRNA-128-3p, and SIRT1. In addition, the potential effects of MIR497HG/miRNA-128-3p/SIRT1 axis on proliferative and migratory capacities in HRECs were evaluated by Cell Counting Kit-8 (CCK-8), 5-Ethynyl-2'- deoxyuridine (EdU) and transwell assay, respectively.RESULTS:
High-level glucose (HG) treatment significantly downregulated MIR497HG and SIRT1 expression, whereas upregulated miRNA-128-3p expression in HRECs (p<0.05). MiRNA-128-3p was the target gene binding MIR497HG, and SIRT1 was the downstream gene of miRNA-128-3p. Overexpression of MIR497HG significantly attenuated proliferative and migratory abilities of HG-induced HRECs (p<0.05). Furthermore, decreased trends were partially reversed by overexpression of miRNA-128-3p or knockdown of SIRT1.CONCLUSIONS:
MIR497HG is downregulated after HG treatment. In addition, it suppresses the proliferation and migration of HRECs by targeting miRNA-128-3p/SIRT1 axis, thus influencing the progression of diabetic retinopathy.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
MicroRNAs
/
Sirtuin 1
/
RNA, Long Noncoding
/
Glucose
Limits:
Humans
Language:
En
Journal:
Eur Rev Med Pharmacol Sci
Journal subject:
FARMACOLOGIA
/
TOXICOLOGIA
Year:
2020
Document type:
Article
Affiliation country:
China