CCND1 and hepatocellular carcinoma: Western blot assay also showed that the expression of CyclinD1 in HCC cells was restrained by the transfection of si-circ_0091579; the co-transfection of si-circ_0091579 and anti-miR-1287 regained the expression of CyclinD1, and the abundance of Cleaved-cas3 revealed an opposite trend to CyclinD1 (Figure 4g–i).