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Article

RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1

  • Authors:
    • Honghui Tang
    • Feng Ji
    • Jin Sun
    • Yue Xie
    • Yongyi Xu
    • Haitao Yue
  • View Affiliations / Copyright

    Affiliations: Department of Orthopedics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, P.R. China
  • Pages: 1275-1280
    |
    Published online on: December 10, 2015
       https://doi.org/10.3892/mmr.2015.4670
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Abstract

Osteosarcoma is the most common type of primary malignant tumor of the bone. However, mechanisms underlying osteosarcoma cell proliferation are poorly understood. The present study shows that RBEL1, a newly identified Rab‑like GTPase, may be a key regulator of osteosarcoma cell proliferation. Knockdown of RBEL1 in osteosarcoma cells resulted in impaired colony formation and cell proliferation. Cell cycle analysis suggested that RBEL1 depletion induced G1‑S arrest in osteosarcoma cells. Furthermore, it was demonstrated that retinoblastoma 1 (Rb) was upregulated and activated following RBEL1 knockdown. In addition, Rb inhibitory downstream targets, such as cyclin A2, cyclin D1, c‑Myc and cyclin‑dependent kinase 2, were downregulated. Rb knockdown reversed RBEL1 depletion‑induced tumor suppressive effects. In conclusion, the present results suggest that RBEL1 modulates cell proliferation and G1‑S transition by inhibiting Rb in osteosarcoma. These results suggest a potential therapeutic target in osteosarcoma.
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Copy and paste a formatted citation
Spandidos Publications style
Tang H, Ji F, Sun J, Xie Y, Xu Y and Yue H: RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1. Mol Med Rep 13: 1275-1280, 2016.
APA
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., & Yue, H. (2016). RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1. Molecular Medicine Reports, 13, 1275-1280. https://doi.org/10.3892/mmr.2015.4670
MLA
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., Yue, H."RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1". Molecular Medicine Reports 13.2 (2016): 1275-1280.
Chicago
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., Yue, H."RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1". Molecular Medicine Reports 13, no. 2 (2016): 1275-1280. https://doi.org/10.3892/mmr.2015.4670
Copy and paste a formatted citation
x
Spandidos Publications style
Tang H, Ji F, Sun J, Xie Y, Xu Y and Yue H: RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1. Mol Med Rep 13: 1275-1280, 2016.
APA
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., & Yue, H. (2016). RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1. Molecular Medicine Reports, 13, 1275-1280. https://doi.org/10.3892/mmr.2015.4670
MLA
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., Yue, H."RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1". Molecular Medicine Reports 13.2 (2016): 1275-1280.
Chicago
Tang, H., Ji, F., Sun, J., Xie, Y., Xu, Y., Yue, H."RBEL1 is required for osteosarcoma cell proliferation via inhibiting retinoblastoma 1". Molecular Medicine Reports 13, no. 2 (2016): 1275-1280. https://doi.org/10.3892/mmr.2015.4670
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