RGS19 and hepatocellular carcinoma: The results indicated that transfection with si-MYH9 plasmids significantly suppressed the expression of β-catenin/c-Myc mediated by RGS19 overexpression, while the expression of β-catenin/c-Myc was restored in sh-RGS19 HCC cells transfected with MYH9 plasmids (Fig. 5j).