SLC25A1 and hepatocellular carcinoma: As shown in Fig 3C, the mRNA levels of fatty aldehyde dehydrogenase (FALDH), which catalyzes the formation of hexadecenoic acid from hexadecenal and phosphoethanolamine cytidyltransferase (CTP), which in turn catalyzes the formation of CDP-ethanolamine from phosphoethanolamine, were increased in HCC tissues compared with non-tumorous tissues.