CDKN3 and hepatocellular carcinoma: Survival-related hub genes were analysed using the Kaplan–Meier curve feature within the Kaplan–Meier Plotter database which included 364 cases of hepatocellular carcinoma (Fig. 3). We noted that HCC patients with elevated CDKN3 levels were associated with a decrease in overall survival (p < 0.05) (Fig. 3a).