PHB1 and nasopharyngeal carcinoma: We re-analysed our previous immunhistochemistry results in which the same NPC samples were used to detect the LPLUNC1 and PHB1 expression [10, 22], and we found that the levels of LPLUNC1 protein expression were correlated positively with the levels of PHB1 protein expression in NPC specimens (Table S1 and Figure S1).