Non-Involvement of the Human Monocarboxylic Acid Transporter 1 (MCT1) in the Transport of Phenolic Acid
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- WATANABE Hirohito
- Department of Life Sciences, Faculty of Agriculture, Meiji University
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- YASHIRO Takuya
- Department of Life Sciences, Faculty of Agriculture, Meiji University
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- TOHJO Yuichi
- Department of Life Sciences, Faculty of Agriculture, Meiji University
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- KONISHI Yutaka
- Central Laboratories for Frontier Technology, Kirin Brewery Co., Ltd.
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Abstract
Phenolic acids such as p-coumaric acid and microbial metabolites of poorly absorbed polyphenols are absorbed by the monocarboxylic acid transporter (MCT)-mediated transport system which is identical to the fluorescein/H+ cotransport system. We focus here on the physiological impact of MCT-mediated absorption and distribution. We examined whether MCT1, the best-characterized isoform found in almost all tissues, is involved in this MCT-mediated transport system. The induction of MCT1 expression in Caco-2 cells by a treatment with sodium butyrate (NaBut) did not increase the fluorescein permeability. Moreover, the transfection of Caco-2 cells with an expression vector encoding MCT1 caused no increase in either the permeability or uptake of fluorescein. Furthermore, in the MCT1-expressing oocytes, no increase of p-coumaric acid uptake was apparent, whereas the uptake of salicylic acid, a substrate of MCT1, nearly doubled. Our data therefore establish that MCT1 was not involved in the MCT-mediated transport of phenolic acids.
Journal
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- Bioscience, Biotechnology, and Biochemistry
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Bioscience, Biotechnology, and Biochemistry 70 (8), 1928-1933, 2006
Japan Society for Bioscience, Biotechnology, and Agrochemistry
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Details 詳細情報について
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- CRID
- 1390001206479479680
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- NII Article ID
- 10018528236
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- NII Book ID
- AA10824164
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- ISSN
- 13476947
- 09168451
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- NDL BIB ID
- 8040410
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed