Lycii fructus extract ameliorates hydrogen peroxide-induced cytotoxicity through indirect antioxidant action

Wensi Xu, Shunya Saiki, Takumi Myojin, Yujia Liu, Beiwei Zhu, Yoshiyuki Murata, Hitoshi Ashida, Makoto Tsunenaga, Yoshimasa Nakamura

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


Lycii Fructus is the dried ripe fruits of Lycium chinense and L. barbarum, which has long been used as a traditional food material in East Asia. The purpose of this study was to investigate the role of the indirect antioxidative action in the Lycii fructus extract (LFE)-induced cytoprotective effect in vitro. LFE significantly enhanced the expression of the drug-metabolizing enzyme genes and intracellular glutathione level in mouse hepatoma Hepa1c1c7 cells. LFE stimulated the nuclear translocation of aryl hydrocarbon receptor as well as nuclear factor (erythroid-derived 2)-like 2. The pretreatment of LFE for 24 h, but not for 30 min, completely inhibited the cytotoxic effect of hydrogen peroxide. Furthermore, chlorogenic acid, one of the main constituents of LFE, showed cytoprotection against hydrogen peroxide with the enhanced phase 2 enzyme gene expression. These results suggested that LFE exhibits a cytoprotective effect, possibly through the enhancement of the antioxidant gene expression.

Original languageEnglish
Pages (from-to)1812-1820
Number of pages9
JournalBioscience, Biotechnology and Biochemistry
Issue number10
Publication statusPublished - 2018


  • Antioxidant
  • Chlorogenic acid
  • Glutathione
  • Lycii fructus
  • Phase 2 drug-metabolizing enzymes

ASJC Scopus subject areas

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry


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