Downregulation of miR-493 promoted melanoma proliferation by suppressing IRS4 expression
| Autor: | Aili Cui, Zhehu Jin, Zhonggao Gao, Mingji Jin, Lianhua Zhu, Lianhua Li, Chenglong Jin, Yinghua An |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Tumor Biology, Vol 39 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1423-0380 10104283 |
| DOI: | 10.1177/1010428317701640 |
| Popis: | Accumulating evidence indicated that aberrantly expressed microRNAs play critical roles in the initiation and progression of human cancers. However, the underlying functions of miR-493 in human melanoma remains unknown. Here, our study found that miR-493 expression was downregulated in human melanoma tissues and cells. Overexpression of miR-493 suppressed cell proliferation and cell cycle in human melanoma cell line A375. IRS4 was defined as a target for downregulation by miR-493 and was confirmed by luciferase assay. We also found that knockdown of IRS4 counteracted the proliferation promotion by miR-493 inhibitor. In summary, these results demonstrated that miR-493 acts as a tumor suppressor and inhibits cell proliferation and cell cycle in human melanoma by directly targeting IRS4. |
| Databáze: | Directory of Open Access Journals |
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