At the same time, they revealed a negative correlation between miR-1299 and CTNND1 expression levels; miR-1299 inhibition significantly increased CTNND1 protein levels, and miR-1299 mimics reduced the expression of CTNND1 to promote CTNND1-induced proliferation and invasion of HCC cells. Here, CTNND1 is linked to hepatocellular carcinoma.