Journal
BIOMEDICINE & PHARMACOTHERAPY
Volume 90, Issue -, Pages 278-286Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.biopha.2017.03.068
Keywords
MiR-370; PDHB; Melanoma
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Background: Accumulating evidence has shown that miR-370 play an important role in the development and progression of tumor. However, the role of miR-370 in melanoma remains largely unknown. The present study is designed to investigate the function of miR-370 in melanoma and to explore the molecular mechanism underlying its function. Materials and methods: The expression level of miR-370 was detected in melanoma tissues and cell lines by real-time quantitative polymerase chain reaction (qRT-PCR). The effect of overexpression of miR-370 on in vitro cell proliferation, apoptosis, invasion as well as glyclolysis was examined. Western blotting analysis was used to detect the influence of miR-370 on the expression of target genes, and Pearson analysis was used to calculate the correlation between the expression of targets gene and miR-370 in melanoma tissues. Results: Our study showed that miR-370 was upregulated in melanoma tissues compared with non-cancerous tissues (P < 0.01). In addition, the expression of miR-370 in melanoma cell lines was also significantly higher (P < 0.01). Enforced expression of miR-370 promotes melanoma cell proliferation, inhibits apoptosis and enhances invasion and glycolysis and led to downregulation of the PDHB protein. Moreover, the expression level of miR-370 in melanoma tissues showed inverse relationship with the expression level of PDHB protein. Conclusions: In conclusion, our findings suggested that miR-370 represents a potential oncogenic miRNA and plays an important role in melanoma progression by directly targeting PDHB. (C) 2017 Elsevier Masson SAS. All rights reserved.
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