SOX9 and hepatocellular carcinoma: Guo et al33 found that SOX9 can promote survival, proliferation, invasion, and EMT, but these promotions are weakened after the knockout of the MKLN1-AS gene, and the overexpression and silence of SOX9 can increase or decrease the expression of MKLN1-AS in hepatocellular carcinoma cells, which results from the fact that SOX9 can transcriptionally regulate lncRNA-MKLN1-AS.