TGF-β1 induces ARPE-19 EMT. (A), CCK-8 assay examined ARPE-19 cell viability in TGF-β1 and control groups; (B), Transwell assay examined ARPE-19 cell migration in TGF-β1 and control groups; (C), EMT markers expressions were unclosed by RT-qPCR in TGF-β1 and control groups.