Inhibition of tumorigenesis in ApcMin/+ mice by a combination of (-)-epigallocatechin-3-gallate and fish oil

Mousumi Bose, Xingpei Hao, Jihyeung Ju, Ali Husain, Sunny Park, Joshua D. Lambert, Chung S. Yang

Research output: Contribution to journalArticle

41 Scopus citations

Abstract

The effect of a combination of (-)-epigallocatechin-3-gallate (EGCG) with fish oil on intestinal tumorigenesis in ApcMin/+ mice fed a high-fat diet was investigated in the present study. The combined treatment of EGCG and fish oil for 9 weeks reduced the tumor number by 53% as compared to controls while neither agent alone had a significant effect. Apoptosis was significantly increased in all treatment groups. β-Catenin nuclear positivity in adenomas from the combination group was lower than control mice, implicating the modulation of Wnt signaling by the combination. Fish oil and the combination significantly reduced prostaglandin E2 (PGE2) levels in small intestinal tumors as compared to controls, suggesting modulation of aberrant arachidonic acid metabolism by fish oil. Akt phosphorylation in adenomas was significantly reduced in all treatment groups, which may have contributed to the observed increase in apoptosis. The results indicate that a combination of low doses of EGCG and fish oil can inhibit tumor multiplicity in ApcMin/+ mice.

Original languageEnglish
Pages (from-to)7695-7700
Number of pages6
JournalJournal of Agricultural and Food Chemistry
Volume55
Issue number19
DOIs
StatePublished - 19 Sep 2007

Keywords

  • (-)-Epigallocatechin gallate
  • Apc mouse
  • Fish oil
  • Intestinal cancer

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