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MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma

  • Authors:
    • Gang Han
    • Yan Wang
    • Wenzhi Bi
    • Jinpeng Jia
    • Wei Wang
  • View Affiliations / Copyright

    Affiliations: Department of Orthopedics, General Hospital of PLA, Beijing 100853, P.R. China
    Copyright: © Han et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 679-684
    |
    Published online on: December 30, 2014
       https://doi.org/10.3892/etm.2014.2161
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Abstract

MicroRNA‑124 (miR‑124) has been demonstrated to be downregulated in numerous human malignancies and correlated with tumor progression. However, its expression and clinical significance in osteosarcoma remains unclear. Thus, the aim of the present study was to explore the effects of miR‑124 in osteosarcoma tumorigenesis and development. Using reverse transcription‑quantitative polymerase chain reaction, miR‑124 expression was detected in primary osteosarcoma tissues and osteosarcoma cell lines. The correlation of miR‑124 expression with clinicopathological factors and prognosis was statistically analyzed. MTT, flow cytometric, and Transwell invasion and migration assays were used to test the proliferation, apoptosis, invasion and migration of osteosarcoma cells transfected with miR‑124 mimic. It was found that the expression levels of miR‑124 in osteosarcoma tissues were significantly lower than those in corresponding noncancerous bone tissues (P<0.001). In addition, miR‑124 downregulation more frequently occurred in osteosarcoma specimens with advanced clinical stage (P<0.001), positive distant metastasis (P=0.005) and poor response to neoadjuvant chemotherapy (P=0.013). Univariate and multivariate analysis identified low miR‑124 expression as an unfavorable prognostic factor for overall survival. Furthermore, transfection of miR‑124 mimic into MG63 cells was able to reduce cell proliferation, invasion and migration, and promote cell apoptosis. These findings indicate that miR‑124 may act not only as a novel diagnostic and prognostic marker, but also as a potential target for the molecular therapy of osteosarcoma.
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Copy and paste a formatted citation
Spandidos Publications style
Han G, Wang Y, Bi W, Jia J and Wang W: MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma. Exp Ther Med 9: 679-684, 2015.
APA
Han, G., Wang, Y., Bi, W., Jia , J., & Wang, W. (2015). MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma. Experimental and Therapeutic Medicine, 9, 679-684. https://doi.org/10.3892/etm.2014.2161
MLA
Han, G., Wang, Y., Bi, W., Jia , J., Wang, W."MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma". Experimental and Therapeutic Medicine 9.3 (2015): 679-684.
Chicago
Han, G., Wang, Y., Bi, W., Jia , J., Wang, W."MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma". Experimental and Therapeutic Medicine 9, no. 3 (2015): 679-684. https://doi.org/10.3892/etm.2014.2161
Copy and paste a formatted citation
x
Spandidos Publications style
Han G, Wang Y, Bi W, Jia J and Wang W: MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma. Exp Ther Med 9: 679-684, 2015.
APA
Han, G., Wang, Y., Bi, W., Jia , J., & Wang, W. (2015). MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma. Experimental and Therapeutic Medicine, 9, 679-684. https://doi.org/10.3892/etm.2014.2161
MLA
Han, G., Wang, Y., Bi, W., Jia , J., Wang, W."MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma". Experimental and Therapeutic Medicine 9.3 (2015): 679-684.
Chicago
Han, G., Wang, Y., Bi, W., Jia , J., Wang, W."MicroRNA-124 functions as a tumor suppressor and indicates prognosis in human osteosarcoma". Experimental and Therapeutic Medicine 9, no. 3 (2015): 679-684. https://doi.org/10.3892/etm.2014.2161
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