We previously analyzed the mRNA levels of lipid metabolism-related genes in Hepa1-6 cells (mouse hepatoma cell line) which overexpressed mouse Iah1. We found that the mRNA expression of diacylglycerol O-acyltransferase 2 (Dgat2) and Cd36 antigen (Cd36) were suppressed in Hepa1-6 cells which overexpressed mouse Iah1 [6]. Here, IAH1 is linked to hepatocellular carcinoma.