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  • Title: Citrus auraptene suppresses azoxymethane-induced colonic preneoplastic lesions in C57BL/KsJ-db/db mice.
    Author: Hayashi K, Suzuki R, Miyamoto S, Shin-Ichiroh Y, Kohno H, Sugie S, Takashima S, Tanaka T.
    Journal: Nutr Cancer; 2007; 58(1):75-84. PubMed ID: 17571970.
    Abstract:
    The current study was designed to investigate whether dietary citrus auraptene (AUR) suppresses the development of azoxymethane (AOM)-induced colorectal preneoplastic lesions in C57BL/KsJ-db/db (db/db) mice with obese and diabetic phenotypes. Female db/db and wild (+/+) mice were divided into the AOM + AUR, AOM alone, AUR alone, and the untreated groups in each phenotype. AOM was given 3 weekly intraperitoneal injections (10 mg/kg bw). AUR (250 ppm) was given in diet during the study (for 10 wk). Dietary AUR significantly reduced the number of aberrant crypt foci (ACF) and Beta -catenin-accumulated crypt (BCAC) in both phenotypes. The treatment also lowered cell proliferation activity and increased apoptotic cells in both lesions. Our findings indicate that dietary AUR is able to suppress the early phase of colon carcinogenesis in both phenotypes, suggesting possible application of AUR as a chemopreventive agent in both the high-risk and general populations for colorectal cancer.
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