STAT1 and hepatocellular carcinoma: Subsequently, the results of qPCR suggested that enhancing expression of STAT1 was able to increase ZFPM2-AS1 expression, whereas STAT1 knockdown could lead to remarkable decline of ZFPM2-AS1 levels, which indicated that STAT1 was capable to stimulate the expression of ZFPM2-AS1 in HCC cells (Fig. 2G).