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miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway

  • Authors:
    • Lin He
    • Li Zhang
    • Mengfei Wang
    • Wenrong Wang
  • View Affiliations / Copyright

    Affiliations: Department of Gynecology, Nanjing Medical University Affiliated Wuxi Second Hospital, Wuxi, Jiangsu 214002, P.R. China
    Copyright: © He et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1203-1208
    |
    Published online on: February 10, 2017
       https://doi.org/10.3892/etm.2017.4118
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Abstract

The current study aimed to investigate the potential role of miR-9 in the inhibition of ovarian cancer progression through the stromal cell-derived factor-1 (SDF‑1)/ C‑X‑C chemokine receptor type 4 (CXCR4) pathway and to provide a theoretical basis for the diagnosis and treatment of ovarian cancer. Human ovarian cancer OVCAR‑3 cells were transfected with miR-9 short hairpin RNA (shRNA). The effect of miR‑9 on the mRNA expression levels of CXCR4 were analyzed using reverse transcription‑quantitative polymerase chain reaction. The effects of miR‑9 on OVCAR‑3 cell proliferation, invasion and apoptotic ability were detected using a 3‑(4,5‑dimethyl‑2‑thiazolyl)‑2,5‑diphenyl tetrazolium bromide assay, Matrigel method, and Annexin V‑fluorescein isothiocyanate flow cytometry, respectively. In addition, expression levels of SDF‑1/CXCR4 pathway associated proteins were determined by western blot analysis. mRNA expression levels of CXCR4 in OVCAR‑3 cells transfected with miR‑9 shRNA was significantly downregulated compared with the blank and control groups (P<0.05). Furthermore, compared with the two control groups, the current results revealed that miR‑9 inhibited cell proliferation, suppressed invasive ability and induced cell apoptosis in OVCAR‑3 cells (P<0.05). Finally, it was observed that miR‑9 functioned as a tumor inhibitor through the SDF‑1/CXCR4 pathway by suppressing the expression levels of extracellular signal‑regulated kinase 1 (ERK1), ERK2 and matrix metalloproteinase‑9 proteins. The present study suggested that miR‑9 may function as a promising tumor inhibitor for ovarian cancer through targeting the SDF-1/CXCR4 pathway.
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Copy and paste a formatted citation
Spandidos Publications style
He L, Zhang L, Wang M and Wang W: miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway. Exp Ther Med 13: 1203-1208, 2017.
APA
He, L., Zhang, L., Wang, M., & Wang, W. (2017). miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway. Experimental and Therapeutic Medicine, 13, 1203-1208. https://doi.org/10.3892/etm.2017.4118
MLA
He, L., Zhang, L., Wang, M., Wang, W."miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway". Experimental and Therapeutic Medicine 13.4 (2017): 1203-1208.
Chicago
He, L., Zhang, L., Wang, M., Wang, W."miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway". Experimental and Therapeutic Medicine 13, no. 4 (2017): 1203-1208. https://doi.org/10.3892/etm.2017.4118
Copy and paste a formatted citation
x
Spandidos Publications style
He L, Zhang L, Wang M and Wang W: miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway. Exp Ther Med 13: 1203-1208, 2017.
APA
He, L., Zhang, L., Wang, M., & Wang, W. (2017). miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway. Experimental and Therapeutic Medicine, 13, 1203-1208. https://doi.org/10.3892/etm.2017.4118
MLA
He, L., Zhang, L., Wang, M., Wang, W."miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway". Experimental and Therapeutic Medicine 13.4 (2017): 1203-1208.
Chicago
He, L., Zhang, L., Wang, M., Wang, W."miR-9 functions as a tumor inhibitor of cell proliferation in epithelial ovarian cancer through targeting the SDF-1/CXCR4 pathway". Experimental and Therapeutic Medicine 13, no. 4 (2017): 1203-1208. https://doi.org/10.3892/etm.2017.4118
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