HLA-DQB1 and hepatocellular carcinoma: sh-HLA-DQB1-AS1#1/2 causes a decrease in number of colonies and an increase in number of TUNEL-positive cells (Figures 2(b) and 2(c)), indicating that HLA-DQB1-AS1 knockdown promoted cell apoptosis and inhibited cell proliferation in hepatocellular carcinoma.