Journal
CELL BIOLOGY INTERNATIONAL
Volume 43, Issue 10, Pages 1113-1124Publisher
WILEY
DOI: 10.1002/cbin.11027
Keywords
FOXN3; melanoma; miRNA-378
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Funding
- Xi'an Jiaotong University [xjj2017073]
- Second Affiliated Hospital of Xi'an Jiaotong University [YJ(QN)201511]
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MicroRNAs (miRNAs) participate in the development and progression of melanoma. However, while dysregulation of microRNA-378 (miR-378) has been seen in various cancer types, its clinical importance and function in melanoma are poorly elucidated. In this work, miR-378 expression in melanoma and in adjacent non-cancerous tissue was evaluated with a quantitative real-time polymerase chain reaction. A series of assays (wound healing, Transwell, and nude mouse subcutaneous tumor model) were used to investigate the implications of abnormal miR-378 regulation on melanoma cell migration and invasion in vitro, and on tumorigenicity in vivo. Prediction and conformation of the miR-378 target gene was undertaken using bioinformatic analysis and luciferase reporter system. Expression of miR-378 was often increased in melanoma, and shown to potentiate its migration, invasion, and tumorigenicity. miR-378 acted, at least partially, through inhibition of the potential target FOXN3 and via Wnt/beta-catenin pathway activation. The findings indicate that miR-378 triggers melanoma development and progression. This miRNA could be a novel diagnostic and prognostic biological marker and provide utility for targeted treatment of melanoma.
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