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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2018, Vol. 23 ›› Issue (7): 770-775.doi: 10.12092/j.issn.1009-2501.2018.07.008

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Lycopene protects against CCl4-induced acute hepatic injury via inhibiting endoplasmic reticulum stress

LIAO Xiaoling,WU Liang,LIN Zongze,  YE Jian   

  1. Ruian People's Hospital, Ruian 325200, Zhejiang, China
  • Received:2017-12-19 Revised:2018-03-01 Online:2018-07-26 Published:2018-07-20

Abstract:

AIM: To investigate the effects and mechanism of lycopene on endoplasmic reticulum stress (ERS) in CCl4-induced acute liver injury mice. METHODS: The mice were treated with lycopene (i.g.) and acute hepatic injury was induced by carbon tetrachloride (CCl4, i.p.). The activity of lactic dehydrogenase (LDH) in liver tissue was measured by kit. The apoptosis was measured by TUNEL assay. Western blot was performed for proteins. RESULTS: Lycopene decreased the activity LDH (P<0.01) significantly. Meanwhile, lycopene inhibited apoptosis makedly (P<0.05). In addition, pretreatment with lycopene inhibited the expressions of glucose regulated protein 78kda (GRP78), activating trnsfection factor-6 (ATF-6), inositol requiring enzyme (p-IRE-1α), eukaryotic initiation factor-2α (p-eIF-2α) and caspase-12 (P<0.05). Furthermore, the ratio of p-Akt/Akt was down-regulated by lycopene (P<0.05). CONCLUSION: Lycopene alleviates CCl4-induced liver injury by inhibiting ER stress, and the mechanism might be associated with the activation of PI3K/Akt signaling pathway.

Key words: lycopene, acute liver injury, endoplasmic reticulum stress

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