Abstract
In this study, the anti-degranulation effects of fifteen carotenoids were evaluated using RBL-2H3 rat basophilic leukemia cell line as a mast cell model. Nine carotenoids, fucoxanthin, zeaxanthin, β-carotene, astaxanthin, 3-hydroxyechinenone, fucoxanthinol, lycopene, β-cryptoxanthin, and siphonaxanthin significantly suppressed antigen-induced mast cell degranulation. Under the same conditions, the cellular carotenoid contents were quantified using high performance liquid chromatography-photodiode array (HPLC-PDA). There was no correlation between the cellular carotenoid contents and their anti-degranulation activities. These results indicate that the differences in the anti-degranulation activities of carotenoids were not related to their uptake by the cells.
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