MX1 and nasopharyngeal carcinoma: When GD patients were compared to NPC patients, the expression of MX1 and PLAU genes was up-regulated (rFC 6.7 and 2.6) and the expression of ATOH8, MXRA5 and MN1 was down-regulated (rFC 0.02, 0.14, and 0.13, see Fig. 3).