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Cancer Lett. 2006 Aug 18;240(1):135-42. Epub 2005 Oct 19.

Dietary artepillin C suppresses the formation of aberrant crypt foci induced by azoxymethane in mouse colon.

Author information

1
Department of Life Science, Graduate School of Science and Technology, Kobe University, Rokkodai, Nada-ku, Kobe 657-8501, Japan.

Abstract

Artepillin C, a prenylated phenylpropanoid found specifically in Brazilian propolis, has been shown to be a bioavailable antioxidant. In this study, artepillin C was tested for colon cancer-preventing activity using azoxymethane-challenged ddY mice. Oral doses of 80 and 160 mg/kg body weight of propolis or 10mg/kg of artepillin C (equi-amounts to 160 mg propolis) reduced significantly the frequency of colonic aberrant crypt foci (ACF) by 39.2, 43.7 and 43.4%, respectively. In liver of the mice, glutathione S-transferase and NADPH:quinone reductase activity increased with the doses of propolis or artepillin C, and an antioxidant-responsive element (ARE) was found to be activated for binding DNA. Artepillin C is considered to suppress the formation of colonic ACF through the activation of ARE and induction of phase II enzymes in liver.

PMID:
16236434
DOI:
10.1016/j.canlet.2005.09.002
[Indexed for MEDLINE]

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