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Article

Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer

  • Authors:
    • Heng Zeng
    • Wei Wei
    • Xiaotao Xu
  • View Affiliations / Copyright

    Affiliations: Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China, Department of Trauma and Microsurgery, 324 Hospital of PLA, Chongqing 400020, P.R. China, Department of Oncology, Renmin Hospital, Wuhan University, Wuhan, Hubei 430060, P.R. China
  • Pages: 77-81
    |
    Published online on: April 28, 2014
       https://doi.org/10.3892/ol.2014.2096
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Abstract

Chemokine (C-X-C motif) receptor 4 (CXCR4) has been found to closely correlate with the incidence, development, treatment and prognosis of breast cancer. The aim of the present study was to investigate the effects of CXCR4 on bone metastasis in breast cancer and to explore the mechanisms of this process. CXCR4 small interfering RNA was transfected into the breast cancer cell line, MDA‑MB‑231BA‑rfp, and the cell proliferation and invasion abilities of the cells were measured using cell counting kit‑8 cell proliferation and Transwell assays. A mouse model of breast cancer with bone metastasis was prepared and the bone metastasis was confirmed using micro‑positron emission tomography. The associated proteins were detected by western blot analysis and the results showed that CXCR4 RNAi inhibited the cell proliferation and invasion ability of the MDA‑MB‑231BA‑rfp cells. In addition, CXCR4 RNAi inhibited the duration and extent of bone metastasis in the MDA‑MB‑231BA‑rfp cells in the mouse model, while the inhibition of CXCR4 RNAi blocked the phosphatidylinositide 3‑kinase (PI3K)/protein kinase B (AKT)/matrix metalloproteinase (MMP)‑9 pathway. In conclusion, the present study demonstrated that CXCR4 RNAi inhibits bone metastasis and the cell proliferation and invasion abilities of breast cancer cells. Furthermore, the CXCR4/PI3K/AKT/MMP‑9 pathway may be important in the bone metastasis of breast cancer.
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Copy and paste a formatted citation
Spandidos Publications style
Zeng H, Wei W and Xu X: Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer. Oncol Lett 8: 77-81, 2014.
APA
Zeng, H., Wei, W., & Xu, X. (2014). Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer. Oncology Letters, 8, 77-81. https://doi.org/10.3892/ol.2014.2096
MLA
Zeng, H., Wei, W., Xu, X."Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer". Oncology Letters 8.1 (2014): 77-81.
Chicago
Zeng, H., Wei, W., Xu, X."Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer". Oncology Letters 8, no. 1 (2014): 77-81. https://doi.org/10.3892/ol.2014.2096
Copy and paste a formatted citation
x
Spandidos Publications style
Zeng H, Wei W and Xu X: Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer. Oncol Lett 8: 77-81, 2014.
APA
Zeng, H., Wei, W., & Xu, X. (2014). Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer. Oncology Letters, 8, 77-81. https://doi.org/10.3892/ol.2014.2096
MLA
Zeng, H., Wei, W., Xu, X."Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer". Oncology Letters 8.1 (2014): 77-81.
Chicago
Zeng, H., Wei, W., Xu, X."Chemokine (C-X-C motif) receptor 4 RNA interference inhibits bone metastasis in breast cancer". Oncology Letters 8, no. 1 (2014): 77-81. https://doi.org/10.3892/ol.2014.2096
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