C1GALT1C1 and colorectal carcinoma: We selected 5 types of ppGalNac‐Ts (GALNT2, GALNT3, GALNT6, GALNT12, GALNT14), as these ppGalNac‐Ts have been reported to be closely associated with CRC.27, 28, 29, 30, 31 Our analysis did not detect obvious differences in the mRNA levels of these ppGalNAc‐Ts between Cosmc‐overexpressing cells and the control cells (Figure 4C).