POLE2 and nasopharyngeal carcinoma: Chromatin immunoprecipitation (ChIP)‐seq data for H3K27AC in NPC cell lines (C666‐1, HK1 and HNE1) from the ENCODE database46 (visualized through the UCSC browser) demonstrated high H3K27AC signals at the GINS3, POLE2, PLEK2 and FERMT1 genes (Figure S10), suggesting the importance of H3K27AC in driving the expression of these genes and promoting invasion, migration and proliferation in NPC.