miR-410-3p suppresses breast cancer progression by targeting Snail

  • Authors:
    • Ya-Feng Zhang
    • Yue Yu
    • Wang-Zhao Song
    • Rui-Ming Zhang
    • Shan Jin
    • Jun-Wen Bai
    • Hong-Bin Kang
    • Xin Wang
    • Xu-Chen Cao
  • View Affiliations

  • Published online on: May 23, 2016     https://doi.org/10.3892/or.2016.4828
  • Pages: 480-486
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Abstract

miR-410-3p acts as an oncogene or tumor-suppressor gene in various types of cancer. However, its role in breast cancer remains unknown. In the present study, expression of miR-410-3p in 30 breast cancer and paired adjacent normal tissues was detected by RT-qPCR. The expression of miR-410-3p was downregulated in 76.7% of the breast cancer samples. To further validate the expression of miR-410-3p in breast cancer, we analyzed miR-410-3p expression profiling data set from The Cancer Genome Atlas (TCGA) including 683 breast cancer and 87 normal breast tissues. We observed that the expression of miR-410-3p was downregulated in breast cancer tissues. Next, we investigated the influence of miR-410-3p on cell proliferation by transiently transfecting the miR-410-3p mimic or inhibitor, as well as their corresponding controls in the MDA-MB-231 and MCF7 cell lines. miR-410-3p overexpression reduced cell growth, colony formation and the number of EdU-positive cells in the MDA-MB-231 cells. In contrast, inhibition of miR-410-3p in the MCF7 cells resulted in a higher proliferation rate as assessed by MTT assay, plate colony formation and EdU assays. Furthermore, miR-410-3p inhibited epithelial-mesenchymal transition. In addition, Snail was found to be a direct target of miR-410-3p based on a luciferase assay. Overexpression of Snail was able to rescue the effect of miR-410-3p in breast cancer cells. Moreover, miR‑410-3p was inversely expressed with Snail in breast cancer samples. Our data provide new knowledge regarding the role of miR-410-3p in breast cancer progression.
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July-2016
Volume 36 Issue 1

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Copy and paste a formatted citation
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Spandidos Publications style
Zhang Y, Yu Y, Song W, Zhang R, Jin S, Bai J, Kang H, Wang X and Cao X: miR-410-3p suppresses breast cancer progression by targeting Snail. Oncol Rep 36: 480-486, 2016
APA
Zhang, Y., Yu, Y., Song, W., Zhang, R., Jin, S., Bai, J. ... Cao, X. (2016). miR-410-3p suppresses breast cancer progression by targeting Snail. Oncology Reports, 36, 480-486. https://doi.org/10.3892/or.2016.4828
MLA
Zhang, Y., Yu, Y., Song, W., Zhang, R., Jin, S., Bai, J., Kang, H., Wang, X., Cao, X."miR-410-3p suppresses breast cancer progression by targeting Snail". Oncology Reports 36.1 (2016): 480-486.
Chicago
Zhang, Y., Yu, Y., Song, W., Zhang, R., Jin, S., Bai, J., Kang, H., Wang, X., Cao, X."miR-410-3p suppresses breast cancer progression by targeting Snail". Oncology Reports 36, no. 1 (2016): 480-486. https://doi.org/10.3892/or.2016.4828