1,2-dichloropropane (1,2-DCP) is a solvent used in the printing industry. It was linked to cholangiocarcinoma in 2013, when printing company employees exposed to 1,2-DCP were diagnosed with the cancer. To understand the genes influencing cholangiocarcinoma development, scientists examined gene expression profiles in co-cultured cholangiocytes and macrophages exposed to 1,2-DCP. They found DNA repair genes in...