Adaptive EGF expression sensitizes pancreatic cancer cells to ionizing radiation through activation of the cyclin D1/P53/PARP pathway

  • Authors:
    • Xiaoxing Liu
    • Haiyan Chen
    • Yanli Hou
    • Xiumei Ma
    • Ming Ye
    • Renhua Huang
    • Bin Hu
    • Hongbin Cao
    • Lei Xu
    • Mengyao Liu
    • Linfeng Li
    • Jianxin Gao
    • Yongrui Bai
  • View Affiliations

  • Published online on: February 19, 2019     https://doi.org/10.3892/ijo.2019.4719
  • Pages: 1466-1480
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Abstract

It is well-known that the activation status of the P53, signal transducer and activator of transcription (Stat)3 and nuclear factor (NF)‑κB signaling pathways determines the radiosensitivity of cancer cells. However, the function of these pathways in radiosensitive vs radioresistant cancer cells remains elusive. The present study demonstrated that adaptive expression of epidermal growth factor (EGF) following exposure to ionizing radiation (IR) may induce radiosensitization of pancreatic cancer (PC) cells through induction of the cyclin D1/P53/poly(ADP‑ribose) polymerase pathway. By contrast, adaptively expressed interleukin (IL)‑6 and insulin‑like growth factor (IGF)‑1 may promote radioresistance of PC cells, likely through activation of the Stat3 and NF‑κB pathways. In addition, cyclin D1 and survivin, which are specifically expressed in the G1/S and G2/M phase of the cell cycle, respectively, are mutually exclusive in radiosensitive and radioresistant PC cells, while Bcl‑2 and Bcl‑xL expression does not differ between radiosensitive and radioresistant PC cells. Therefore, adaptively expressed EGF and IL‑6/IGF‑1 may alter these pathways to promote the radiosensitivity of PC cancers. The findings of the present study highlight potential makers for the evaluation of radiosensitivity and enable the development of effective regimens for cancer radiotherapy.
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April-2019
Volume 54 Issue 4

Print ISSN: 1019-6439
Online ISSN:1791-2423

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Spandidos Publications style
Liu X, Chen H, Hou Y, Ma X, Ye M, Huang R, Hu B, Cao H, Xu L, Liu M, Liu M, et al: Adaptive EGF expression sensitizes pancreatic cancer cells to ionizing radiation through activation of the cyclin D1/P53/PARP pathway. Int J Oncol 54: 1466-1480, 2019
APA
Liu, X., Chen, H., Hou, Y., Ma, X., Ye, M., Huang, R. ... Bai, Y. (2019). Adaptive EGF expression sensitizes pancreatic cancer cells to ionizing radiation through activation of the cyclin D1/P53/PARP pathway. International Journal of Oncology, 54, 1466-1480. https://doi.org/10.3892/ijo.2019.4719
MLA
Liu, X., Chen, H., Hou, Y., Ma, X., Ye, M., Huang, R., Hu, B., Cao, H., Xu, L., Liu, M., Li, L., Gao, J., Bai, Y."Adaptive EGF expression sensitizes pancreatic cancer cells to ionizing radiation through activation of the cyclin D1/P53/PARP pathway". International Journal of Oncology 54.4 (2019): 1466-1480.
Chicago
Liu, X., Chen, H., Hou, Y., Ma, X., Ye, M., Huang, R., Hu, B., Cao, H., Xu, L., Liu, M., Li, L., Gao, J., Bai, Y."Adaptive EGF expression sensitizes pancreatic cancer cells to ionizing radiation through activation of the cyclin D1/P53/PARP pathway". International Journal of Oncology 54, no. 4 (2019): 1466-1480. https://doi.org/10.3892/ijo.2019.4719