Figure 7.
Working model of circFAT1 action. (Left) CircFAT1 sequence-specifically sequester miR-7, resulting in an increase of IRS2 mRNA and protein, which in turn enhance ERK1/2 phosphorylation and CCND1 production, consequently promoting tumor cell growth. (Right) CircFAT1 enhances the effectiveness of the chemotherapeutic drug DDP.