Wang X. W. et al. (2019) identified that SYNPR-AS1 is overexpressed in female patients and adenocarcinoma of non-small cell lung cancer. One study reported that MME-AS1 was relative with prognosis in patients with intrahepatic cholangiocarcinoma (Kang et al., 2020). Here, MME is linked to intrahepatic cholangiocarcinoma.