Protective effects of N‑acetylcysteine on cisplatin‑induced oxidative stress and DNA damage in HepG2 cells

Wang,Fugen; Liu,Shourong; Shen,Yiqin; Zhuang,Rangxiao; Xi,Jianjun; Fang,Hongying; Pan,Xuwan; Sun,Jingjing; Cai,Zhaobin

doi:10.3892/etm.2014.2019

Protective effects of N‑acetylcysteine on cisplatin‑induced oxidative stress and DNA damage in HepG2 cells

Authors:
- Fugen Wang
- Shourong Liu
- Yiqin Shen
- Rangxiao Zhuang
- Jianjun Xi
- Hongying Fang
- Xuwan Pan
- Jingjing Sun
- Zhaobin Cai
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Affiliations: The Xixi Hospital of Hangzhou Affiliated to Zhejiang University of Traditional Chinese Medicine, Hangzhou, Zhejiang 310023, P.R. China
Published online on: October 13, 2014 https://doi.org/10.3892/etm.2014.2019
Pages: 1939-1945

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Abstract

Hepatocyte injury is a common pathological effect of cisplatin (CDDP) in various solid tumor therapies. Thus, strategies for minimizing CDDP toxicity are of great clinical interest. N‑acetylcysteine (NAC), a known antioxidant, is often used as an antidote for acetaminophen overdose in the clinic due to its ability to increase the levels of glutathione (GSH). In the present study, the aim was to investigate the protective effects of NAC against CDDP‑induced apoptosis in human‑derived HepG2 cells. The results showed that upon exposure of the cells to CDDP, oxidative stress was significantly induced. DNA damage caused by CDDP was associated with cell apoptosis. NAC pre‑treatment significantly reduced the malondialdehyde (MDA) levels and ameliorated the GSH modulation induced by CDDP. NAC also protected against DNA damage and cell apoptosis. These data suggest the protective role of NAC against hepatocyte apoptosis induced by CDDP was achieved through the inhibition of DNA damage and alterations of the redox status in human derived HepG2 cells. These results indicate that NAC administration may protect against CDDP‑induced damage.

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