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miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells

  • Authors:
    • Jiali Leng
    • Qingxu Song
    • Yuguang Zhao
    • Zhenyu Wang
  • View Affiliations / Copyright

    Affiliations: Nursing Platform of Bone, Joint and Sports Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China, Department of Spinal Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China, Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
    Copyright: © Leng et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1095-1104
    |
    Published online on: February 23, 2018
       https://doi.org/10.3892/ijo.2018.4285
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Abstract

Osteosarcoma is a common, high-risk primary bone malignancy that mostly affects the younger population. There has been no marked improvement in the clinical outcomes of osteosarcoma patients to date, and cancer recurrence and metastasis are common in high-grade osteosarcoma. Therefore, identifying new biomarkers and novel therapeutic targets is crucial for improving the prognosis of osteosarcoma patients. In the present study, the MG63 human osteosarcoma cell line was employed to examine the role of microRNA (miR)‑15a in regulating cellular activities under hypoxic conditions. It was demonstrated that hypoxia stimulates migration and invasion in MG63 cells, which was correlated with the downregulation of miR‑15a and upregulation of B-cell lymphoma 2 (Bcl‑2) expression. Introduction of miR‑15a or knockdown of endogenous Bcl‑2 may reduce hypoxia-induced cell invasion and migration through the regulation of matrix metalloproteinases. Analysis of the expression of miR‑15a indicated that hypoxia repressed the transcription of deleted in lymphocytic leukemia 2 (DLEU2), which is the host gene of miR‑15a. These findings indicated that miR‑15a may be a valuable target for the treatment of osteosarcoma, particularly for patients with high-grade cancer or heavy tumor burden.
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Copy and paste a formatted citation
Spandidos Publications style
Leng J, Song Q, Zhao Y and Wang Z: miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells. Int J Oncol 52: 1095-1104, 2018.
APA
Leng, J., Song, Q., Zhao, Y., & Wang, Z. (2018). miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells. International Journal of Oncology, 52, 1095-1104. https://doi.org/10.3892/ijo.2018.4285
MLA
Leng, J., Song, Q., Zhao, Y., Wang, Z."miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells". International Journal of Oncology 52.4 (2018): 1095-1104.
Chicago
Leng, J., Song, Q., Zhao, Y., Wang, Z."miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells". International Journal of Oncology 52, no. 4 (2018): 1095-1104. https://doi.org/10.3892/ijo.2018.4285
Copy and paste a formatted citation
x
Spandidos Publications style
Leng J, Song Q, Zhao Y and Wang Z: miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells. Int J Oncol 52: 1095-1104, 2018.
APA
Leng, J., Song, Q., Zhao, Y., & Wang, Z. (2018). miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells. International Journal of Oncology, 52, 1095-1104. https://doi.org/10.3892/ijo.2018.4285
MLA
Leng, J., Song, Q., Zhao, Y., Wang, Z."miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells". International Journal of Oncology 52.4 (2018): 1095-1104.
Chicago
Leng, J., Song, Q., Zhao, Y., Wang, Z."miR‑15a represses cancer cell migration and invasion under conditions of hypoxia by targeting and downregulating Bcl‑2 expression in human osteosarcoma cells". International Journal of Oncology 52, no. 4 (2018): 1095-1104. https://doi.org/10.3892/ijo.2018.4285
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