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. 1988 Aug;58(2):144–146. doi: 10.1038/bjc.1988.181

Response of chemically induced primary colon tumours of the mouse to flavone acetic acid (NSC 347 512).

G Pratesi 1, C Manzotti 1, G Damia 1, M D'Incalci 1
PMCID: PMC2246749  PMID: 3166904

Abstract

Flavone acetic acid (FAA) is a compound with proven activity against various transplantable colon cancers in mice. In this study it was evaluated against primary colon tumours, chemically induced by methylazoxymethanol in outbred CF1 mice. FAA was given i.v. at doses of 70 or 100 or 150 mg kg-1 every 7 days for 6 weeks. Only 4 out of 60 FAA treated mice died of toxicity. FAA reduced tumour number and tumour burden compared to control mice (P less than 0.05 at least), with no apparent dose-response relationship. Antitumour activity of FAA was comparable to that of 5-fluorouracil (5-FU) used as standard. Moreover, FAA was more effective that 5-FU against large tumours. FAA levels in plasma and different tissues (including colonic neoplastic lesions) after a single i.v. dose of 150 mg kg-1 were investigated. Tumour FAA levels appear insufficient to be responsible for the antitumour activity based only on a direct FAA cytotoxic effect. The results confirm clinical interest in FAA and suggest that mechanisms other than direct cytotoxicity may be involved in its activity.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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