miR-410-3p regulates proliferation and apoptosis of fibroblast-like synoviocytes by targeting YY1 in rheumatoid arthritis - 01/10/19

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Highlights |
• | Effect of miR-410-3p on RA FLS proliferation, apoptosis, & cell cycle was studied. |
• | miR-410-3p levels were reduced in synovium and FLSs of patients with RA. |
• | Up-regulated miR-410-3p inhibited proliferation and induced apoptosis. |
• | Yin Yang 1 transcription factor was verified as a direct target gene of miR-410-3p. |
• | Our findings might provide a potential therapeutic target for RA. |
Abstract |
In our previous study, miR-410-3p had been confirmed to regulate inflammatory cytokine release in rheumatoid arthritis fibroblast-like synoviocytes (RA FLSs). However, other biological functions of miR-410-3p in RA FLSs still remain unexplored. In the present study, we focused on the effect of miR-410-3p on proliferation, apoptosis, and cell cycle of RA FLSs, and explored the potential underlying mechanism. miR-410-3p mRNA levels in the synovium and FLSs of patients with RA and of healthy controls were quantitated by RT-qPCR. The levels of miR-410-3p were reduced in both synovium and FLSs from patients with RA. Next, we focused on the roles of miR-410-3p in cell viability, apoptosis, and cell cycle, by transfecting miR-410-3p mimics and inhibitor into RA FLSs, and conducting CCK-8 assay, EdU staining and flow cytometry. Results showed that miR-410-3p up-regulation suppressed proliferation, promoted apoptosis and G1-S phase transition while miR-410-3p down-regulation had opposite effects. YY1 was verified as a direct target gene of miR-410-3p through the luciferase reporter system; YY1 up-regulation was able to rescue the effects of miR-410-3p in RA FLSs. Taken together, our current findings might provide a potential therapeutic target for RA.
Le texte complet de cet article est disponible en PDF.Abbreviations : RA, FLSs, miR, YY1, RT-qPCR, EdU, HFLS-RA, HFLS
Keywords : Rheumatoid arthritis, microRNAs, Proliferation, Apoptosis
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Article 109426- novembre 2019 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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