Open Access

GADD45α alleviates the CDDP resistance of SK‑OV3/cddp cells via redox‑mediated DNA damage

  • Authors:
    • Qi-Zhu Zhang
    • Fang Wen
    • Han-Lin Yang
    • Yan-Yan Cao
    • Ren Guo Peng
    • Yuan-Mei Wang
    • Lei Nie
    • Yuan-Kun Qin
    • Jin-Jian Wu
    • Xing Zhao
    • Dan Zi
  • View Affiliations

  • Published online on: August 10, 2021     https://doi.org/10.3892/ol.2021.12981
  • Article Number: 720
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Epithelial ovarian cancer has the highest mortality rate of all malignant ovarian cancer types. Great progress has been made in the treatment of ovarian cancer in recent years. However, drug resistance has led to a low level of 5‑year survival rate of epithelial ovarian cancer, and the molecular mechanism of which remains unknown. The aim of the present study was to identify the role of redox status in the cisplatin (CDDP) resistance of ovarian cancer. CDDP‑resistant SK‑OV3 (SK‑OV3/cddp) cells were prepared and their reactive oxygen species and glutathione levels were investigated. The effects of hydrogen peroxide on the CDDP sensitivity of the SK‑OV3/cddp cells and their expression levels of the redox‑associated protein growth arrest and DNA damage 45a (GADD45α) were also investigated. In addition, the impact of GADD45α overexpression on cell viability was evaluated in vitro and in vivo, and the levels of Ser‑139 phosphorylated H2A histone family member X (γ‑H2AX), which is associated with DNA damage, were detected. The results suggested that redox status affected the drug resistance of the ovarian cancer cells by increasing the expression of GADD45α. The overexpression of GADD45α reversed the CDDP resistance of the SK‑OV3/cddp cells and increased the level of γ‑H2AX. In conclusion, GADD45α alleviated the CDDP resistance of SK‑OV3/cddp cells via the induction of redox‑mediated DNA damage.
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October-2021
Volume 22 Issue 4

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Zhang Q, Wen F, Yang H, Cao Y, Peng RG, Wang Y, Nie L, Qin Y, Wu J, Zhao X, Zhao X, et al: GADD45α alleviates the CDDP resistance of SK‑OV3/cddp cells via redox‑mediated DNA damage. Oncol Lett 22: 720, 2021
APA
Zhang, Q., Wen, F., Yang, H., Cao, Y., Peng, R.G., Wang, Y. ... Zi, D. (2021). GADD45α alleviates the CDDP resistance of SK‑OV3/cddp cells via redox‑mediated DNA damage. Oncology Letters, 22, 720. https://doi.org/10.3892/ol.2021.12981
MLA
Zhang, Q., Wen, F., Yang, H., Cao, Y., Peng, R. G., Wang, Y., Nie, L., Qin, Y., Wu, J., Zhao, X., Zi, D."GADD45α alleviates the CDDP resistance of SK‑OV3/cddp cells via redox‑mediated DNA damage". Oncology Letters 22.4 (2021): 720.
Chicago
Zhang, Q., Wen, F., Yang, H., Cao, Y., Peng, R. G., Wang, Y., Nie, L., Qin, Y., Wu, J., Zhao, X., Zi, D."GADD45α alleviates the CDDP resistance of SK‑OV3/cddp cells via redox‑mediated DNA damage". Oncology Letters 22, no. 4 (2021): 720. https://doi.org/10.3892/ol.2021.12981