MYH9 and hepatocellular carcinoma: A strong positive correlation (r = 0.837) was observed between p-MYH9 (Ser1943) expression and the IC50 values of the HCC cell lines for lenvatinib (Fig. 5i), revealing that p-MYH9 (Ser1943) may play an important role in driving HCC primary resistance to lenvatinib.