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Int. J. Mol. Sci. 2016, 17(4), 609; doi:10.3390/ijms17040609

Mmu-miR-1894-3p Inhibits Cell Proliferation and Migration of Breast Cancer Cells by Targeting Trim46

Key Laboratory of Human Disease Comparative Medicine, Ministry of Health, Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100021, China
Laboratory of Animal Sciences, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
Authors to whom correspondence should be addressed.
Academic Editor: Martin Pichler
Received: 18 March 2016 / Revised: 5 April 2016 / Accepted: 14 April 2016 / Published: 22 April 2016
(This article belongs to the Collection Regulation by Non-Coding RNAs)
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Breast cancer is the second leading cause of cancer death in women and the presence of metastasis significantly decreases survival. MicroRNAs are involved in tumor progression and the metastatic spreading of breast cancer. Here, we reported that a microRNA, mmu-miR-1894, significantly decreased the lung metastasis of 4TO7 mouse breast cancer cells by 86.7% in mouse models. Mmu-miR-1894-3p was the functional mature form of miR-1894 and significantly decreased the lung metastasis of 4TO7 cells by 90.8% in mouse models. A dual-luciferase reporter assay indicated that mmu-miR-1894-3p directly targeted the tripartite motif containing 46 (Trim46) 3′-untranslated region (UTR) and downregulated the expression of Trim46 in 4TO7 cells. Consistent with the effect of mmu-miR-1894-3p, knockdown of Trim46 inhibited the experimental lung metastasis of 4TO7 cells. Moreover, knockdown of human Trim46 also prohibited the cell proliferation, migration and wound healing of MBA-MD-231 human breast cancer cells. These results suggested that the effect of knockdown of Trim46 alone was sufficient to recapitulate the effect of mmu-miR-1894 on the metastasis of the breast cancer cells in mouse and that Trim46 was involved in the proliferation and migration of mouse and human breast cancer cells. View Full-Text
Keywords: breast cancer; mmu-miR-1894-3p; tripartite motif containing 46; metastasis; migration breast cancer; mmu-miR-1894-3p; tripartite motif containing 46; metastasis; migration

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhang, L.; Li, X.; Dong, W.; Sun, C.; Guo, D.; Zhang, L. Mmu-miR-1894-3p Inhibits Cell Proliferation and Migration of Breast Cancer Cells by Targeting Trim46. Int. J. Mol. Sci. 2016, 17, 609.

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