1. Down-Regulation of miR-129-5p Inhibits Growth and Induces Apoptosis in Laryngeal Squamous Cell Carcinoma by Targeting APC.
- Author
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Li, MingHua, Tian, LinLi, Wang, Lin, Yao, HongChao, Zhang, JiaRui, Lu, JianGuang, Sun, YaNan, Gao, Xu, Xiao, Hui, and Liu, Ming
- Subjects
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LARYNGEAL cancer , *SQUAMOUS cell carcinoma , *APOPTOSIS , *ADENOMATOUS polyposis coli , *GENETIC regulation , *MICRORNA , *TUMOR treatment - Abstract
miRNAs regulate gene expression and are key mediators of tumourigenesis. miR-129 has diverse effects in tumours, but its role in laryngeal squamous cell carcinoma (LSCC) remains unknown. This article focuses on the role of miR-129-5p in LSCC. We show miR-129-5p is upregulated in primary LSCC tumours and correlated with advanced disease. Down-regulating miR-129-5p suppressed cell proliferation and migration, and caused cell cycle arrest in Hep-2 cell lines. Downregulation of miR-129-5p alone is sufficient to induce apoptosis both in vivo and in vitro. Moreover, the growth of LSCC xenograft exposed to miR-129-5p antisense oligonucleotides (ASO) in BALB/c mice was markedly inhibited. In addition, we found that miR-129-5p targeted adenomatous polyposis coli (APC) to release inhibition of Wnt signalling causing cell growth and tumourigenesis. Our results suggest miR-129-5p functions as an oncogene in LSCC by repressing APC and is a potential therapeutic target for LSCC. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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