SOX9 and hepatocellular carcinoma: To date, several studies have reported various roles of miR-206, such as regulating the growth and migration of hepatocellular carcinoma cells by affecting Sox9 (Lin et al. 2021), participating in the injury of endothelial cells (Gao et al. 2021; Al-Kanaan et al. 2020), and certain early diagnostic significance for skeletal muscle injury (Yamaura et al. 2020).