Neoplasma Vol.64, No.2, p.209-215, 2017
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| Title: MicroRNA-182 targets FOXF2 to promote the development of triple-negative breast cancer |
| Author: J. Yu, W. Shen, B. Gao, H. Zhao, J. Xu, B. Gong |
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Abstract: To explore the function of microRNA-182 (miR-182) on MCF7 and MDA-MB-231 cells behaviors, and possible mechanisms of triple-negative breast cancer (TNBC) development. Totally, 30 TNBC patients were enrolled to investigate the correlation between miR-182 expression and TNBC clinical indicators. miR-182 expression in TNBC tissues was measured by qRT-PCR, followed by bioinformatics methods and luciferase reporter assay to investigate whether FOXF2 was a direct target of miR-182. Besides, miR-182 mimics were transfected into MCF7 cells while miR-182 inhibitor into MDA-MB-231 cells, followed by cell proliferation and migration detection. miR-182 expression was significantly correlated with TNBC clinical indicators, such as lymph node metastasis TNM (stage III), intravascular cancer emboli and TNBC recurrence and metastasis. miR-182 expression was significantly higher in TNBC tissues than that in matched normal tissues, and was significantly higher in MDA-MB-231 cells than that in MCF7 cells. miR-182 knockdown inhibited the proliferation and migration of MDA-MB-231 cells while miR-182 overexpression markedly promoted the proliferation and migration of MCF7 cells. Besides, FOXF2 was identified as a direct target of miR-182. Our findings indicate that miR-182 may promote cell proliferation and migration in TNBC possible via down-regulation of FOXF2. miR-182 may serve as a potential target in TNBC treatment.
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| Keywords: triple-negative breast cancer, microRNA-182, FOXF2, proliferation, migration |
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Published online: 14-Mar-2017
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| Year: 2017, Volume: 64, Issue: 2 |
Page From: 209, Page To: 215 |
doi:10.4149/neo_2017_206
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