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Article Open Access

RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro

  • Authors:
    • Xin Jiang
    • Qiao‑Li Zhang
    • Ye‑Hong Tian
    • Jin‑Chang Huang
    • Guo‑Lin Ma
  • View Affiliations / Copyright

    Affiliations: Graduate School, Beijing University of Chinese Medicine, Beijing 100029, P.R. China, Department of Acupuncture and Minimally Invasive Oncology, Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing 100029, P.R. China, Department of Gastroenterology, Xianyang Hospital of Yan'an University, Xianyang, Shanxi 712000, P.R. China, Department of Radiology, China‑Japan Friendship Hospital, Beijing 100029, P.R. China
    Copyright: © Jiang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 1619-1624
    |
    Published online on: February 1, 2017
       https://doi.org/10.3892/ol.2017.5667
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Abstract

Radiotherapy is currently the major therapeutic strategy for patients with lung cancer. However, radioresistance and various side effects continue to present challenging issues for this form of treatment. A recent study demonstrated that cyclophilin A (CyPA) was overexpressed in non‑small cell lung cancer and, therefore, presents a novel potential therapeutic target. In addition, gene‑radiotherapy is a novel method for cancer treatment. Therefore, the objective of the present study was to investigate the potential effect of CyPA silencing on radiosensitivity in human lung adenocarcinoma in vitro. The stable CyPA‑silencing lung adenocarcinoma (PAa) cell line was generated using lentivirus-mediated small hairpin RNAs. The knockdown of CyPA was determined using fluorescent microscopy and western blot analysis. Cells were irradiated using various doses of cobalt‑60 (0, 2, 4, 6 and 8 Gy). The radiosensitizing effects were determined by a clonogenic survival assay. Apoptosis and cell cycle distribution were evaluated using flow cytometry. Silencing of CyPA significantly increased the apoptosis of PAa cells. In addition, the radiosensitivity of cells was markedly enhanced following CyPA silencing. Furthermore, silencing of CyPA, in combination with irradiation, induced G2/M phase cell cycle arrest. Taken together, the data suggest that the silencing of CyPA, combined with radiation therapy, may increase the therapeutic efficacy of lung cancer treatment through regulation of the cell cycle and apoptosis‑associated signaling pathways.
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Copy and paste a formatted citation
Spandidos Publications style
Jiang X, Zhang QL, Tian YH, Huang JC and Ma GL: RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro. Oncol Lett 13: 1619-1624, 2017.
APA
Jiang, X., Zhang, Q., Tian, Y., Huang, J., & Ma, G. (2017). RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro. Oncology Letters, 13, 1619-1624. https://doi.org/10.3892/ol.2017.5667
MLA
Jiang, X., Zhang, Q., Tian, Y., Huang, J., Ma, G."RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro". Oncology Letters 13.3 (2017): 1619-1624.
Chicago
Jiang, X., Zhang, Q., Tian, Y., Huang, J., Ma, G."RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro". Oncology Letters 13, no. 3 (2017): 1619-1624. https://doi.org/10.3892/ol.2017.5667
Copy and paste a formatted citation
x
Spandidos Publications style
Jiang X, Zhang QL, Tian YH, Huang JC and Ma GL: RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro. Oncol Lett 13: 1619-1624, 2017.
APA
Jiang, X., Zhang, Q., Tian, Y., Huang, J., & Ma, G. (2017). RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro. Oncology Letters, 13, 1619-1624. https://doi.org/10.3892/ol.2017.5667
MLA
Jiang, X., Zhang, Q., Tian, Y., Huang, J., Ma, G."RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro". Oncology Letters 13.3 (2017): 1619-1624.
Chicago
Jiang, X., Zhang, Q., Tian, Y., Huang, J., Ma, G."RNA interference-mediated gene silencing of cyclophilin A enhances the radiosensitivity of PAa human lung adenocarcinoma cells in vitro". Oncology Letters 13, no. 3 (2017): 1619-1624. https://doi.org/10.3892/ol.2017.5667
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