Statistically significant differences in OGT protein expression were observed between grade 3 and grade 1 as well as between grade 3 and grade 2 tumors (p = 0.021 and p = 0.038, respectively) as well as in OGA protein level between grade 3 and grade 1, as well as grade 2 and grade 1 cancers (p = 0.016 and p = 0.036, respectively). Here, OGA is linked to cancer.