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Evaluation of transporter-mediated hepatobiliary transport of newly developed 18F-labeled pitavastatin derivative, PTV-F1, in rats by PET imaging
https://repo.qst.go.jp/records/77713
https://repo.qst.go.jp/records/77713317ffa70-0d53-4e91-b4a9-323a69573906
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-11-28 | |||||
タイトル | ||||||
タイトル | Evaluation of transporter-mediated hepatobiliary transport of newly developed 18F-labeled pitavastatin derivative, PTV-F1, in rats by PET imaging | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Kimura, Hiroyuki
× Kimura, Hiroyuki× Yagi, Yusuke× Mikamo, Mutsumi× Maeda, Kazuya× Kagawa, Shinya× Arimitsu, Kenji× Higashi, Tatsuya× Nishii, Ryuichi× Ono, Masahiro× Nakamoto, Yuji× Togashi, Kaori× Kusuhara, Hiroyuki× Saji, Hideo× Tatsuya, Higashi× Ryuichi, Nishii |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Quantitative evaluations of the functions of uptake and efflux transporters directly in vivo is desired to understand an efficient hepatobiliary transport of substrate drugs. Pitavastatin is a substrate of organic anion transporting polypeptides (OATPs) and canalicular efflux transporters; thus, it can be a suitable probe for positron-emission tomography (PET) imaging of hepatic transporter functions. To characterize the performance of [18F]PTV-F1, an analogue of pitavastatin, we investigated the impact of rifampicin (a typical OATP inhibitor) coadministration or Bcrp (breast cancer resistance protein) knockout on [18F]PTV-F1 hepatic uptake and efflux in rats by PET imaging. After intravenous administration, [18F]PTV-F1 selectively accumulated in the liver, and the radioactivity detected in plasma, liver, and bile mainly derived from the parent PTV-F1 during the PET study (∼40 min). Coadministration of rifampicin largely decreased the hepatic uptake of [18F]PTV-F1 by 73%. Because of its lower clearance in rats, [18F]PTV-F1 is more sensitive for monitoring changes in hepatic OATP1B function that other previously reported OATP1B PET probes. Rifampicin coadministration also significantly decreased the biliary excretion of radioactivity by 65%. Bcrp knockout did not show a significant impact on its biliary excretion.[18F]PTV-F1 enables quantitative analysis of the hepatobiliary transport system for organic anions. | |||||
書誌情報 |
Drug Metabolism and Pharmacokinetics 巻 34, 号 5, p. 317-324, 発行日 2019-10 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1347-4367 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.dmpk.2019.05.006 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.sciencedirect.com/science/article/abs/pii/S1347436719300333#! |