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Curcumin Attenuates Oxaliplatin-Induced Liver Injury and Oxidative Stress by Activating the Nrf2 Pathway

Authors Lu Y, Wu S, Xiang B, Li L, Lin Y

Received 23 July 2019

Accepted for publication 13 December 2019

Published 9 January 2020 Volume 2020:14 Pages 73—85


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Qiongyu Guo

Yulei Lu,1 Shengming Wu,2 Bangde Xiang,3 Lequn Li,3 Youzhi Lin3

1Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People’s Republic of China; 2Departments of Pathology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People’s Republic of China; 3Departments of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People’s Republic of China

Correspondence: Youzhi Lin
Departments of Hepatobiliary Surgery, Guangxi Medical University Cancer Hospital, 71 He Di Road, Nanning, Guangxi Zhuang Autonomous Region 530021, People’s Republic of China

Purpose: Oxaliplatin (OXA)-induced liver injury is one of the main limiting factors affecting the efficacy of OXA-based chemotherapy in patients with colorectal liver metastases. In addition, oxidative stress is an important pathophysiological mechanism of OXA-induced liver injury. Therefore, dietary antioxidants may decrease or prevent hepatic toxicity in vivo and be beneficial to OXA-based chemotherapy.
Methods: An experimental OXA-induced liver injury animal model was established, and the protective effects of curcumin (CUR) against OXA-induced liver injury were investigated. ELISA was used to determine the levels of MDA, SOD, CAT, and GSH in liver tissue. The effect of CUR treatment on the expression of cytokines and the Nrf2 pathway was determined by real-time PCR and Western blotting.
Results: CUR treatment alleviated OXA-induced hepatic pathological damage and splenomegaly. The protective effect of CUR was demonstrated to be correlated with inhibition of oxidative stress, inflammation, and the coagulation system. Furthermore, Western blotting revealed that CUR treatment reverses the suppression of Nrf2 nuclear translocation and increases the expression of HO-1 and NOQ1 in mice with OXA-induced liver injury. Moreover, the Nrf2 activation and hepatoprotective effect of CUR were abolished by brusatol.
Conclusion: Curcumin attenuates oxaliplatin-induced liver injury and oxidative stress by activating the Nrf2 pathway, which suggests that CUR may be potentially used in the prevention and treatment of OXA-induced liver injury.

Keywords: oxaliplatin, curcumin, liver injury, oxidative stress, Nrf2

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