miR-708 and miR-335-3p Inhibit the Apoptosis of Retinal Ganglion Cells Through Suppressing Autophagy.
J Mol Neurosci
; 71(2): 284-292, 2021 Feb.
Article
in En
| MEDLINE
| ID: mdl-32683666
ABSTRACT
This study aimed to clarify the regulation role of miR-708 and miR-335-3p in retinal ganglion cell (RGC) autophagy and apoptosis in glaucoma. Chronic glaucoma mice were established by laser photocoagulation. RGCs were isolated and transfected with a series of plasmids and the cultured in 60 mmHg pressure. miR-335-3p, miR-708, and ATG3 mRNA expressions were detected by qRT-PCR. Protein levels of ATG3, autophagy-related protein LC3, and p62 were detected by Western blot. The apoptosis of RGCs was detected by flow cytometry. The regulation role of miR-335-3p/miR-708 in ATG3 was confirmed by the dual-luciferase reporter gene. The expressions of several miRNAs were measured in retinal tissues from chronic glaucoma mice and RGCs under pressure conditions, and results showed that both miR-335-3p and miR-708 were down-regulated. Besides, the inhibition of miR-708 and miR-335-3p induced the apoptosis of RGCs through promoting autophagy. Also, miR-708 and miR-335-3p could bind to ATG3 and targeted regulated ATG3. Furthermore, the interference with miR-708/miR-335-3p induced RGC apoptosis by up-regulating ATG3 to promote autophagy. In general, the down-regulation of miR-708 and miR-335-3p contributed to the apoptosis of RGCs through promoting autophagy in glaucoma.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Retinal Ganglion Cells
/
Autophagy
/
Apoptosis
/
MicroRNAs
Limits:
Animals
Language:
En
Journal:
J Mol Neurosci
Journal subject:
BIOLOGIA MOLECULAR
/
NEUROLOGIA
Year:
2021
Document type:
Article
Affiliation country:
China