In hepatocellular carcinoma, miR-139-5p can regulate the proliferation, migration and invasion of hepatocellular carcinoma cells by targeting different targets such as SLITRK4 (Wu et al.,2020), CCT5 (Xu et al.,2021) and ARF6 (Wu et al.,2021). This evidence concerns the gene SLITRK4 and hepatocellular carcinoma.