In COAD and READ patients, we noticed that galactosyltransferases (B4GALT7, B3GALT6), glucuronyltransferase (B3GAT3), chondroitin synthase (CHSY3, CHSY1, CHPF2), and polymerizing enzyme (CHPF) were significantly increased compared to the normal adjacent tissues, while xylosyltransferase (XYLT1) and ofCS modification enzymes (CHST7, CHST15, UST) were both decreased. This evidence concerns the gene CHST7 and colon adenocarcinoma.