GALNT7 and colorectal cancer: Conversely, we found a marked increase in Tn antigen H-score in GALNT7-High dMMR/MSI colorectal cancers compared with their GALNT7-Low counterparts, and this concurrent upregulation of Tn antigen and GALNT7 was also observed in pMMR/MSS colorectal cancers (Fig. 3K).