Figure 3 shows that all three NPC cell lines were positive (densitometric scanning of Western blots is provided in the Supplementary Materials). The C666.1 cells displayed the highest MGMT levels, which was intriguing because, in the above-shown CFAs (Figure 1), the inclusion of O6BG was unable to sensitize these cells to NEO212. The gene discussed is MGMT; the disease is nasopharyngeal carcinoma.