The results showed that the ability to form survival foci in NPC cells was significantly suppressed by BPIFB1 overexpression, and this inhibition was particularly pronounced at 4 and 6 Gy in CNE2 (Fig. 1a, b) and HONE1 (Supplementary Fig. 1a, b) cells. This evidence concerns the gene BPIFB1 and nasopharyngeal carcinoma.