In all patients, the expression in tumor samples versus normal mucosa was less than one for AA-NAT, MT1, and MT2 (0.39 ± 0.06, 0.31 ± 0.03, and 0.36 ± 0.05, respectively), which indicates that their expression decreased in tumor samples versus normal mucosa, as reported elsewhere [27,28,29]. Here, BRD2 is linked to neoplasm.