HBP1 mRNA levels were significantly higher in NPC cell lines (HNE1, HNE2, CNE2, C666–1, and HK1) than in NP69 cells, specifically, the HBP1 mRNA levels changed by 20-fold in CNE2 cells and by 100-fold in C666–1 cells (Fig. 1c). The gene discussed is HBP1; the disease is nasopharyngeal carcinoma.