Although miR-155 is upregulated in the two EBV-negative NPC cell lines, Chinese nasopharyngeal carcinoma cell line 1 and nasopharyngeal carcinoma cell line from Taiwan (TW03), EBV-encoded LMP1, and LMP2A may further enhance miR-155 expression. Here, PDLIM7 is linked to nasopharyngeal carcinoma.