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Article

Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer

  • Authors:
    • Wen-Jing Lian
    • Geng Liu
    • Yuan-Jie Liu
    • Zhi-Wei Zhao
    • Tao Yi
    • Hong-Ying Zhou
  • View Affiliations / Copyright

    Affiliations: Department of Human Anatomy, West China School of Preclinical and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China, Biotherapy Laboratory of Gynecological Oncology, Key Laboratory of Obstetric and Gynecologic and Pediatric Diseases and Birth Defects of the Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
  • Pages: 193-200
    |
    Published online on: May 14, 2013
       https://doi.org/10.3892/or.2013.2462
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Abstract

Previous studies indicate that bone morphogenetic protein (BMP) 6 is involved in breast cancer development and progression. However, the mechanism underlying the role of BMP6 in breast cancer cell proliferation, differentiation and chemoresistance remains unknown. In this study, we confirmed that BMP6 expression was downregulated in breast cancer tissues compared with the adjacent normal breast tissues. We further demonstrated that the downregulation of BMP6 was correlated with the estrogen receptor (ER) and progesterone receptor (PR) status, tumor grade and enhanced proliferation (Ki67 proliferation index). In vitro functional experiments showed that the suppression of BMP6 expression by a specific small hairpin (sh)RNA vector led to increased proliferation in the MCF7 breast cancer cell line. Furthermore, knockdown of BMP6 in MCF7 cells enhanced the chemoresistance to doxorubicin by upregulation of mdr-1/P-gp expression and activation of the ERK signaling pathway. Taken together, our data suggest that BMP6 plays a critical role in breast cancer cell aberrant proliferation and chemoresistance and may serve as a novel diagnostic biomarker or therapeutic target for breast cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Lian W, Liu G, Liu Y, Zhao Z, Yi T and Zhou H: Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer. Oncol Rep 30: 193-200, 2013.
APA
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., & Zhou, H. (2013). Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer. Oncology Reports, 30, 193-200. https://doi.org/10.3892/or.2013.2462
MLA
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., Zhou, H."Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer". Oncology Reports 30.1 (2013): 193-200.
Chicago
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., Zhou, H."Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer". Oncology Reports 30, no. 1 (2013): 193-200. https://doi.org/10.3892/or.2013.2462
Copy and paste a formatted citation
x
Spandidos Publications style
Lian W, Liu G, Liu Y, Zhao Z, Yi T and Zhou H: Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer. Oncol Rep 30: 193-200, 2013.
APA
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., & Zhou, H. (2013). Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer. Oncology Reports, 30, 193-200. https://doi.org/10.3892/or.2013.2462
MLA
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., Zhou, H."Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer". Oncology Reports 30.1 (2013): 193-200.
Chicago
Lian, W., Liu, G., Liu, Y., Zhao, Z., Yi, T., Zhou, H."Downregulation of BMP6 enhances cell proliferation and chemoresistance via activation of the ERK signaling pathway in breast cancer". Oncology Reports 30, no. 1 (2013): 193-200. https://doi.org/10.3892/or.2013.2462
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