DANCR and hepatocellular carcinoma: In order to comprehensively acknowledge the function of DANCR in HCC progression, a specific siRNA against DANCR gene transcript was designed to knockdown DANCR in Hep3B and SMMC‐7721, which had higher endogenous DANCR expression, and qRT‐PCR verified that the expression of DANCR was obviously decreased by this siRNA (Figure 2A).