MicroRNA-4516 suppresses proliferative vitreoretinopathy development via negatively regulating OTX1.

ABSTRACT: Proliferative vitreoretinopathy (PVR) progression is associated with TGF-β2-induced epithelial-mesenchymal transition (EMT) in retinal pigment epithelial (RPE) cells. In cancer cells, miR-4516 downregulates orthodenticle homeobox 1 (OTX1)-mediated cell invasion. Moreover, OTX1 is shown to be involved in invasion and EMT. The purpose of this study was to assess whether microRNA (miR-4516) suppresses EMT in RPE cells. EMT features were assessed using Western blotting, immunocytochemical staining, scratch-wound healing, modified Boyden chamber assay, and collagen gel contraction assay. For in vivo testing, a rabbit model was used, which involved induction of PVR by injection of transfected spontaneously arising RPE (ARPE) cells into the vitreous chamber. The putative target of miR-4516 was id

SUBMITTER: Pao SI 

PROVIDER: S-EPMC9246108 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature