ArticleJournal of biosciences2022
Silibinin suppresses TGFβ2-induced lens epithelial cell migration and epithelial-mesenchymal transition.
Article in Journal of biosciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors at 1 institution in 1 country.
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Abstract
Growth factor-induced migration of lens epithelial cell (LEC) toward the posterior of lens capsule bag and their epithelial-mesenchymal transition (EMT) is the key process involved in the pathogenesis of posterior capsular opacification (PCO). Silibinin, a natural flavonolignan, confers therapeutic effects to different cells by regulation of signalling pathways; however, its role in the prevention of migration and EMT of LECs is yet to be analysed. In this study, the inhibitory capabilities of silibinin on migration and EMT were analysed in response to TGFβ2 stimulation in HLE B-3 cells. The anti-migratory effect of silibinin was analysed using wound healing assay. Transcriptional and translational expression of genes related to LEC migration, EMT, and transcription factors related to EMT were studied by quantitative real-time PCR and Western blotting. Immunofluorescence analysis was utilized to study the localization of fibronectin. Silibinin reduced the viability of LECs in a concentration-dependent manner and inhibited the wound healing capacity of LECs induced by TGFβ2. Silibinin also suppressed alteration in the EMT-related markers such as cytoskeletal proteins, cell adhesion markers, extracellular matrix molecules, and transcription factors. Analysis of downstream signalling revealed that treatment with silibinin decreased phosphorylated Akt (Ser473, Thr308), PDK1 (Ser241), PTEN (Ser380), c-Raf (Ser259), and GSK3β (Ser9) in TGFβ-stimulated cells. The effect of silibinin treatment on phosphorylated Akt resembled that of the PI3K inhibitor LY294002. Our results suggest that silibinin can suppress LEC migration and EMT, which involves the inactivation of the PI3K-Akt signalling pathway. Silibinin might be a good candidate for PCO prevention; however, functional evaluation of silibinin using in vivo models is a pre-requisite.
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36222151W4292438635What OpenQuestion holds
Registered trials
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