LncRNA GAS5 regulates migration and epithelial-to-mesenchymal transition in lens epithelial cells via the miR-204-3p/TGFBR1 axis.
Lab Invest
; 102(4): 452-460, 2022 04.
Article
in En
| MEDLINE
| ID: mdl-34916611
ABSTRACT
Diabetic cataract (DC) is a major ocular complication secondary to diabetes mellitus. The epithelial-mesenchymal transition (EMT) of lens epithelial cells (LECs) is an important event in DC progression. Long non-coding RNAs (lncRNAs) and microRNAs are involved in various biological processes and disorders. The aim of this study was to investigate the roles of lncRNA growth arrest-specific transcript 5 (GAS5) and microRNA-204-3p (miR-204-3p) deregulation in the pathogenic mechanism of high glucose (HG)-stimulated LECs. The results show that GAS5 was up-regulated, whereas miR-204-3p was down-regulated in anterior lens capsule tissues of DC patients and in HG-treated LECs compared to their controls, respectively. Functional experiments suggest that the lentivirus-mediated depletion of GAS5, as well as overexpression of miR-204-3p, suppressed migration and EMT in HG-treated LECs. Further mechanistic studies revealed that lncRNA GAS5/miR-204-3p/type 1 receptor of transforming growth factor-beta (TGFBR1) has a regulatory role in the process. Collectively, we demonstrated that dysregulation of GAS5 affects lens epithelial cell migration and EMT under HG conditions via the miR-204-3p/TGFBR1 axis. The current findings may provide new insights into the molecular mechanisms of DC development.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
MicroRNAs
/
RNA, Long Noncoding
Limits:
Humans
Language:
En
Journal:
Lab Invest
Year:
2022
Document type:
Article
Affiliation country:
China