Open Access

Reduction in milk fat globule‑EGF factor 8 inhibits triple‑negative breast cancer cell viability and migration

  • Authors:
    • Yong Yang
    • Jiebao Li
    • Qi Song
    • Kongjun Zhu
    • Xiaocheng Yu
    • Ye Tian
    • Jiaheng Zhang
  • View Affiliations

  • Published online on: January 25, 2019     https://doi.org/10.3892/ol.2019.9968
  • Pages: 3457-3465
  • Copyright: © Yang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Milk fat globule‑EGF factor 8 (MFG‑E8) has been demonstrated to be associated with the progression and metastasis of breast cancer, although the underlying mechanisms remain undefined. The aim of the present study was to explore the role of MFG‑E8 in human breast cancer and examine the underlying molecular mechanisms. Reverse transcription‑quantitative polymerase chain reaction analysis was used to evaluate the expression levels of MFG‑E8 in human breast carcinoma cell lines. An MFG‑E8 small interfering RNA lentiviral vector was constructed and transfected into MDA‑MB‑231 cells. The results indicated that the in vitro silencing of MFG‑E8 significantly inhibited the viability, invasion and migration of breast cancer cells. By using a flow cytometric approach, the knockdown of MFG‑E8 was revealed to significantly induce cell cycle arrest at the G2/M phase and cell apoptosis. Furthermore, the downregulation of MFG‑E8 induced the activation of apoptosis‑associated proteins, and inhibited the expression of matrix metalloproteinase and epithelial‑mesenchymal transition‑associated proteins. Collectively, the results of the present study emphasize the importance of MFG‑E8 deregulation in mammary carcinogenesis and its potential use as a biomarker for the diagnosis of breast carcinomas.
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March-2019
Volume 17 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Yang Y, Li J, Song Q, Zhu K, Yu X, Tian Y and Zhang J: Reduction in milk fat globule‑EGF factor 8 inhibits triple‑negative breast cancer cell viability and migration. Oncol Lett 17: 3457-3465, 2019
APA
Yang, Y., Li, J., Song, Q., Zhu, K., Yu, X., Tian, Y., & Zhang, J. (2019). Reduction in milk fat globule‑EGF factor 8 inhibits triple‑negative breast cancer cell viability and migration. Oncology Letters, 17, 3457-3465. https://doi.org/10.3892/ol.2019.9968
MLA
Yang, Y., Li, J., Song, Q., Zhu, K., Yu, X., Tian, Y., Zhang, J."Reduction in milk fat globule‑EGF factor 8 inhibits triple‑negative breast cancer cell viability and migration". Oncology Letters 17.3 (2019): 3457-3465.
Chicago
Yang, Y., Li, J., Song, Q., Zhu, K., Yu, X., Tian, Y., Zhang, J."Reduction in milk fat globule‑EGF factor 8 inhibits triple‑negative breast cancer cell viability and migration". Oncology Letters 17, no. 3 (2019): 3457-3465. https://doi.org/10.3892/ol.2019.9968