The expression of miR-223 and SSRP1 in NPC cell lines. A. qRT-PCR analysis revealed the miR-223 expression in the human immortalized nasopharyngeal epithelial cell line (NP69 cells) and the human NPC cell lines (CNE-1, HNE-1, SUNE-1, 5-8F and 6-10B). B. qRT-PCR analysis revealed the SSRP1 expression in the human immortalized nasopharyngeal epithelial cell line (NP69 cells) and the human NPC cell lines (CNE-1, HNE-1, SUNE-1, 5-8F and 6-10B). C. Western blot analysis revealed the SSRP1 expression in the human immortalized nasopharyngeal epithelial cell line (NP69 cells) and the human NPC cell lines (CNE-1, HNE-1, SUNE-1, 5-8F and 6-10B). Each bar represents the mean of three independent experiments. *P < 0.05 versus NP69 cell line. #P < 0.05 versus CNE-1, HNE-1, SUNE-1 and 5-8F cell line. &P < 0.05 versus CNE-1, HNE-1, SUNE-1 and 6-10B cell line.