SNORA74A and hepatocellular carcinoma: Hydrodynamic tail vein injection is a classic and effective model for inducing HCC in mice.[21, 22] We injected plasmids carrying the sleeping beauty transposon system co‐expression HrasG12V and shp53 into 8‐week‐old wild type (WT) and Snora74a KO mice via tail vein.