As results, there were no obviously LMP-1 protein expressions in three NPC cell lines, which were verified by results of immunflurescent staining and western blotting, however, the transcripts of LMP-1 could be notably detected in C666-1 cells; interestingly, LMP-1 transcripts expression levels in NPC cell lines were positively associated with SATB1 mRNA expression (Figure 7). This evidence concerns the gene SATB1 and nasopharyngeal carcinoma.