Effect of canthaxanthin on chemically induced mammary carcinogenesis.

Abstract:

:Canthaxanthin, a carotenoid with no vitamin A activity, was evaluated for its efficacy in the prevention of chemically induced mammary cancers. Canthaxanthin was administered in the diet at two dose levels (3,390 or 1,130 mg/kg diet). In the dimethylbenzanthracene-induced mammary cancer model, diet supplementation with canthaxanthin for 3 weeks prior to the carcinogen resulted in a 65% reduction in the number of mammary cancers. The feeding of canthaxanthin after the administration of methylnitrosourea had no significant effect on mammary carcinogenesis. These data demonstrate that canthaxanthin, at least in these models of mammary cancer, is active in preventing cancer initiation and not promotion. Analysis of tissues by high-pressure liquid chromatography revealed that canthaxanthin levels in the liver are very high when compared to those in the mammary gland. The observation that canthaxanthin is highly effective in preventing cancer initiation without toxicity suggests that carotenoids not possessing vitamin A activity should be further evaluated as chemopreventive agents.

journal_name

Oncology

journal_title

Oncology

authors

Grubbs CJ,Eto I,Juliana MM,Whitaker LM

doi

10.1159/000226935

subject

Has Abstract

pub_date

1991-01-01 00:00:00

pages

239-45

issue

3

eissn

0030-2414

issn

1423-0232

journal_volume

48

pub_type

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