ST6GALNAC1 and lung adenocarcinoma: ST6GalNAc-I, a sialyltransferase that conjugates sialic acid to the glycans in glycoproteins, was overexpressed in an aggressive-type KPA (KrasG12D/+ Trp53R172H/+Ad-Cre) lung adenocarcinoma (LUAD) model and patient samples.