miR-141-3p promotes proliferation and metastasis of nasopharyngeal carcinoma by targeting NME1

Manyi Li, Haiping Huang, Fuwei Cheng, Xiaoqing Hu, Jisheng Liu
2020 Advances in Medical Sciences  
This study aimed to investigate the expression and biological function of miR-141-3p in nasopharyngeal carcinoma (NPC) via targeting neoplasm metastasis 1 (NME1). The expression of miR-141-3p and NME1 in 5-8F, C666-1, CNE-1, CNE-2, 6-10B and NP69 nasopharyngeal epithelial cells were detected using real-time Polymerase Chain Reaction (real-time PCR) and western blot, respectively. Cell proliferation was detected using Cell Counting Kit-8 (CCK-8), and the metastasis was detected using Transwell.
more » ... he binding of miR-141-3p to NME1 was detected by dual luciferase reporter gene detection system. The effects of miR-141-3p on tumor growth were also determined in vivo. The results showed that the expression of miR-141-3p significantly increased in various tumor cell lines and the expression of NME1 was higher in NP69 cells and lower in 5-8F cells, which had significant negative correlation. Furthermore, the expression of NME1 was significantly reduced after transfection of miR-141-3p and miR-141-3p promoted cell proliferation and metastasis. The double luciferase reporter gene detection system confirmed that NME1 was the target gene of miR-141-3p. Knockout of NME1 promoted the proliferation and metastasis of NP69 or 6-10B cells and the activation of p-Akt, which were abrogated by miR-141-3p. In vivo, the tumor volumes and weights in the miR-141-3p group significantly increased followed by down-regulation of NME1 and activation of p-Akt. We confirmed that miR-141-3p promotes the proliferation and metastasis of NPC by targeting NME1.
doi:10.1016/j.advms.2020.03.005 pmid:32299022 fatcat:4o4equd7lfabpbe24woa3hozey