MCM3AP and cholangiocarcinoma: In recent years, MCM3AP-AS1 is a novel lncRNA and it was found to be aberrantly expressed in multiple cancers, including CC [35], CRC [16, 36, 37], EC [17], HCC [38], LC [19, 39], lymphoma [40], NPC [20], OSCC [21], PC [22], PTC [41], PCa [23, 42], and RCC [24].