Suppression of MT1E, MT1F, MT1G, MT1H, MT1M, MT1X, and MT2A expressions was found to be significant in HCC (Figures 2C–I, p < 0.01), while MT3 and MT4 had no differential mRNA expression, in line with the results analyzed by the Oncomine database (Figures 2J,K). Here, MT4 is linked to hepatocellular carcinoma.