PDK4 and hepatocellular carcinoma: We analyzed expression of HGF, DEGs (GYS1, H6PD, HK2, MDH1B, PDK2, PDK4, PDPR, PFKL, PGAM2, PHKG1, PKLR, PYGM and SLC2A1), additional isoforms of hexokinases (HK1) and glucose transporters (SLC2A2, SLC2A3) which are reported to be expressed in HCC cells and tissues in previous studies29,30.