FOXO3 and urinary bladder carcinoma: Consistently, circ-Foxo3 suppresses bladder cancer progression through circ-Foxo3/miR-191-5p/mRNA cleaved caspase-3 and circ-Foxo3/miR9-5p/mRNA TGFBR2 (Wang C. et al., 2019; Li et al., 2020).