Emodin protects against oxidative stress and apoptosis in HK-2 renal tubular epithelial cells after hypoxia/reoxygenation

  • Authors:
    • Hui Chen
    • Ri‑Sheng Huang
    • Xian‑Xian Yu
    • Qiong Ye
    • Lu‑Lu Pan
    • Guo‑Jian Shao
    • Jing Pan
  • View Affiliations

  • Published online on: May 18, 2017     https://doi.org/10.3892/etm.2017.4473
  • Pages: 447-452
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Abstract

The aim of the present study was to determine the effects of emodin, a natural compound with antioxidant properties, on oxidative stress and apoptosis induced by hypoxia/reoxygenation (H/R) in HK‑2 human renal tubular cells. In HK‑2 cells subjected to H/R, it was observed that pre‑treatment with emodin lead to an increase in cellular viability and a reduction in the rate of apoptosis and the B‑cell lymphoma 2 (Bcl‑2)‑associated X protein/Bcl‑2 ratio. H/R alone caused a significant increase in the levels of reactive oxygen species and malondialdehyde (P<0.05) and a significant decrease in the activities of superoxide dismutase, catalase and glutathione peroxidase (P<0.05), relative to normoxic cells. In turn, parameters of oxidative stress were improved by emodin pre‑treatment. In addition, emodin pre‑treatment significantly inhibited the phosphorylation of extracellular signal‑regulated protein kinase and c‑Jun N‑terminal kinase mitogen‑activated protein kinases (MAPKs) induced by H/R (P<0.05). These data suggest that emodin may prevent H/R‑induced apoptosis in human renal tubular cells through the regulation of cellular oxidative stress, MAPK activation and restoration of the Bax/Bcl-2 ratio.
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July-2017
Volume 14 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Chen H, Huang RS, Yu XX, Ye Q, Pan LL, Shao GJ and Pan J: Emodin protects against oxidative stress and apoptosis in HK-2 renal tubular epithelial cells after hypoxia/reoxygenation. Exp Ther Med 14: 447-452, 2017.
APA
Chen, H., Huang, R., Yu, X., Ye, Q., Pan, L., Shao, G., & Pan, J. (2017). Emodin protects against oxidative stress and apoptosis in HK-2 renal tubular epithelial cells after hypoxia/reoxygenation. Experimental and Therapeutic Medicine, 14, 447-452. https://doi.org/10.3892/etm.2017.4473
MLA
Chen, H., Huang, R., Yu, X., Ye, Q., Pan, L., Shao, G., Pan, J."Emodin protects against oxidative stress and apoptosis in HK-2 renal tubular epithelial cells after hypoxia/reoxygenation". Experimental and Therapeutic Medicine 14.1 (2017): 447-452.
Chicago
Chen, H., Huang, R., Yu, X., Ye, Q., Pan, L., Shao, G., Pan, J."Emodin protects against oxidative stress and apoptosis in HK-2 renal tubular epithelial cells after hypoxia/reoxygenation". Experimental and Therapeutic Medicine 14, no. 1 (2017): 447-452. https://doi.org/10.3892/etm.2017.4473