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Transport via Niemann-Pick C1 Like 1 contributes to the intestinal absorption of ubiquinone

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Title: Transport via Niemann-Pick C1 Like 1 contributes to the intestinal absorption of ubiquinone
Authors: Nashimoto, Shunsuke Browse this author
Takekawa, Yuto Browse this author
Takekuma, Yoh Browse this author →KAKEN DB
Sugawara, Mitsuru Browse this author →KAKEN DB
Sato, Yuki Browse this author →KAKEN DB
Keywords: Coenzyme Q10 (PubChem CID: 5281915)
Coenzyme Q9 (PubChem CID: 5280473)
Niemann-pick C1 like 1
Intestinal absorption
Mixed micelle
Issue Date: Dec-2020
Publisher: Japanese Society for the Study of Xenobiotics(日本薬物動態学会)JSSX
Journal Title: Drug metabolism and pharmacokinetics
Volume: 35
Issue: 6
Start Page: 527
End Page: 533
Publisher DOI: 10.1016/j.dmpk.2020.08.002
Abstract: Ubiquinone, which is a component in the electron-transport systems of mitochondria, is essential for various activities related to energy metabolism, but the detailed absorption mechanism of ubiquinone is not clear. On the other hand, Niemann-Pick C1 Like 1 (NPC1L1) is involved in the intestinal absorption of fat-soluble components such as cholesterol. In this study, we investigated whether the intestinal absorption of ubiquinone was transported by NPC1L1 as is cholesterol. In this study, coenzyme q10 (CoQ10) and coenzyme q9 (CoQ9) were used as models of ubiquinone. The transport activity of ubiquinone was increased significantly in NPC1L1-overexpressed Madin-Darby canine kidney (MDCK) cells compared with that in pMAM2-BSD vector-transfected MDCK cells and the uptake of ubiquinone was decreased in the presence of ezetimibe, an inhibitor of NPC1L1. These results indicate that NPC1L1 mediates the transport of ubiquinone. Furthermore, to clarify the effect of NPC1L1 on the intestinal absorption of CoQ10, emulsified CoQ10 was orally administered to Wistar rats, and the plasma concentration was measured. The plasma concentration of CoQ10 was significantly decreased by coadministration of ezetimibe and CoQ10 compared to that with administration of only CoQ10. This result indicates that the intestinal absorption of CoQ10 is mediated by NPC1L1. (C) 2020 The Japanese Society for the Study of Xenobiotics. Published by Elsevier Ltd. All rights reserved.
Rights: ©2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:薬学研究院 (Faculty of Pharmaceutical Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤 夕紀

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