MiR-17-5p promotes cancer cell proliferation and tumorigenesis in nasopharyngeal carcinoma by targeting p21.

ABSTRACT: MicroRNAs (miRNAs) may act as either tumor suppressors or oncogenes in various types of cancers. Previous studies have indicated that miR-17-5p is involved in the initiation and development of human tumors. However, its mechanism and function in nasopharyngeal carcinoma (NPC) remain largely unclear. In this study, we evaluated the expression profiles of miR-17-5p and p21 in NPC cell lines and tissues by quantitative real-time PCR (qRT-PCR). For the analysis, we have established a stable overexpression or depletion of miR-17-5p NPC cell lines for analyzing the effects of cell proliferation by MTT, colony formation, and cell cycle assay. A nude mice xenograft model was used to verify the tumor growth in vivo. MiR-17-5p was overexpressed, whereas the expression of p21 was downregulated in NPC

SUBMITTER: Chen C 

PROVIDER: S-EPMC5224848 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature