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- W2032959365 abstract "Cell culture models are useful for studying intestinal absorption and metabolism of carotenoids. The human intestinal cell line, Caco-2, has been the most widely used model for these studies. The PF11 and TC7 clones of Caco-2 exhibit β-carotene-15,15′-oxygenase activity, a key enzyme in the conversion of carotenoids to vitamin A. Studies on the recent cloning of this enzyme are discussed. An in vitro cell culture system used to study intestinal absorption of carotenoids is presented. Under conditions mimicking the postprandial state, Caco-2 cells on membranes take up carotenoids and secrete them incorporated into chylomicrons. Both the cellular uptake and secretion of β-carotene are saturable, concentration-dependent processes. The selective absorption of all-trans β-carotene versus its cis isomers, the differential absorption of individual carotenoids, and the specific interactions between carotenoids during their absorption are discussed. The participation of a specific epithelial transporter in the intestinal absorption of carotenoids is proposed." @default.
- W2032959365 created "2016-06-24" @default.
- W2032959365 creator A5044010310 @default.
- W2032959365 creator A5044571561 @default.
- W2032959365 date "2004-10-01" @default.
- W2032959365 modified "2023-10-15" @default.
- W2032959365 title "Intestinal absorption and metabolism of carotenoids: insights from cell culture" @default.
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- W2032959365 doi "https://doi.org/10.1016/j.abb.2004.03.024" @default.
- W2032959365 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15325914" @default.
- W2032959365 hasPublicationYear "2004" @default.
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