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Absorption mechanism of nucleosides and their analogs in the gastrointestinal tract

Research Project

Project/Area Number 21K06678
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

Inoue Katsuhisa  東京薬科大学, 薬学部, 教授 (50315892)

Co-Investigator(Kenkyū-buntansha) 樋口 慧  東京薬科大学, 薬学部, 講師 (10625304)
岸本 久直  東京薬科大学, 薬学部, 講師 (80723600)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsSLC16A5/MCT6 / トランスポーター / オロト酸 / 有機アニオン / 小腸上皮細胞 / 促進拡散 / CD147 / 側底膜 / ヌクレオシド / 輸送 / 核酸 / 吸収 / 薬物動態
Outline of Research at the Start

経口吸収性に優れた核酸誘導体の開発を促進するために、小腸上皮細胞における細胞内から血液側への核酸の排出輸送に関与する新規ヌクレオシドトランスポーターを同定し、そのトランスポーターの機能特性および核酸類似化合物の体内動態への寄与を検討する。得られる成果は、核酸類似構造を有する抗ウイルス薬や抗がん剤等の効率的な創薬だけでなく、それらの体内動態や薬物間相互作用の予測に役立つと期待される。

Outline of Final Research Achievements

We investigated the possibility that SLC16A5/MCT6, which is highly expressed in human small intestinal epithelial cells, is involved in the transport of nucleic acid derivatives and other related drugs. It was found that MCT6 forms a complex with CD147, which is localized at the plasma membrane in HEK293T cells. MCT6-CD147 expressed in HEK293T cells transported orotic acid, a precursor of pyrimidine nucleotides, and 5-carboxyfluorescein in an extracellular pH- and chloride-dependent manner. Nucleic acids did not significantly inhibit this transport activity, whereas substrates and inhibitors of organic anion transporters did. These results, together with the fact that CD147 is localized at the basolateral membrane of enterocytes, suggest that MCT6 is involved in the efflux of orotic acid and organic anionic drugs at the basolateral membrane of small intestinal epithelial cells.

Academic Significance and Societal Importance of the Research Achievements

従来、親水性化合物の腸管吸収において、小腸上皮細胞内に取り込まれた栄養素や薬物がどのように血液側へ移行するのかについては不明とされてきた。しかし、本研究課題において、小腸上皮細胞に高発現するMCT6が側底膜における薬物や栄養素の排出トランスポーターであることが示唆された。したがって、本研究課題で得られた成果は、未解明であった栄養素や薬物などの腸管吸収における分子機構を明らかにするとともに、創薬における吸収性に優れた医薬品の創製、効果的な薬物の投与法、および腸管での排出トランスポーターが関わる薬物相互作用の回避などを可能にすることが期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (33 results)

All 2024 2023 2022 2021

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 5 results) Presentation (25 results) (of which Int'l Joint Research: 5 results,  Invited: 3 results)

  • [Journal Article] The Use of Carboxyfluorescein Reveals the Transport Function of MCT6/SLC16A5 Associated with CD147 as a Chloride-Sensitive Organic Anion Transporter in Mammalian Cells2024

    • Author(s)
      Sugiyama K, Shimano H, Takahashi M, Shimura Y, Shimura A, Furuya T, Tomabechi R, Shirasaka Y, Higuchi K, Kishimoto H, Inoue K
    • Journal Title

      Journal of Pharmaceutical Sciences

      Volume: 113 Issue: 4 Pages: 1113-1120

    • DOI

      10.1016/j.xphs.2023.12.023

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Macrolide and Ketolide Antibiotics Inhibit the Cytotoxic Effect of Trastuzumab Emtansine in HER2-Positive Breast Cancer Cells: Implication of a Potential Drug-ADC Interaction in Cancer Chemotherapy2023

    • Author(s)
      Kiyomiya K, Tomabechi R, Saito N, Watai K, Takada T, Shirasaka Y, Kishimoto H, Higuchi K, Inoue K
    • Journal Title

      Molecular Pharmaceutics

      Volume: 20 Issue: 12 Pages: 6130-6139

    • DOI

      10.1021/acs.molpharmaceut.3c00490

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Monocarboxylate Transporter 13 (MCT13/SLC16A13) Functions as a Novel Plasma Membrane Oligopeptide Transporter2023

    • Author(s)
      Higuchi K, Kunieda M, Sugiyama K, Tomabechi R, Kishimoto H, Inoue K
    • Journal Title

      Nutrients

      Volume: 15 Issue: 16 Pages: 3527-3527

    • DOI

      10.3390/nu15163527

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] SLC46A3 is a lysosomal proton-coupled steroid conjugate and bile acid transporter involved in transport of active catabolites of T-DM12022

    • Author(s)
      Tomabechi Ryuto、Kishimoto Hisanao、Sato Taeka、Saito Naoki、Kiyomiya Keisuke、Takada Tappei、Higuchi Kei、Shirasaka Yoshiyuki、Inoue Katsuhisa
    • Journal Title

      PNAS Nexus

      Volume: 1 Issue: 3

    • DOI

      10.1093/pnasnexus/pgac063

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of 5-Carboxyfluorescein as a Probe Substrate of SLC46A3 and Its Application in a Fluorescence-Based In Vitro Assay Evaluating the Interaction with SLC46A32022

    • Author(s)
      Tomabechi Ryuto、Miyasato Miki、Sato Taeka、Takada Tappei、Higuchi Kei、Kishimoto Hisanao、Shirasaka Yoshiyuki、Inoue Katsuhisa
    • Journal Title

      Molecular Pharmaceutics

      Volume: 20 Issue: 1 Pages: 491-499

    • DOI

      10.1021/acs.molpharmaceut.2c00741

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Simple and Rapid Bioluminescence-Based Functional Assay of Organic Anion Transporter 1 as a D-Luciferin Transporter2022

    • Author(s)
      Inoue K, Sugiyama K, Furuya T
    • Journal Title

      Methods Mol Biol

      Volume: 2524 Pages: 119-126

    • DOI

      10.1007/978-1-0716-2453-1_9

    • ISBN
      9781071624524, 9781071624531
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mammalian monocarboxylate transporter 7 (MCT7/Slc16a6) is a novel facilitative taurine transporter2022

    • Author(s)
      Higuchi K, Sugiyama K, Tomabechi R, Kishimoto H, Inoue K
    • Journal Title

      J Biol Chem

      Volume: 298 Issue: 4 Pages: 101800-101800

    • DOI

      10.1016/j.jbc.2022.101800

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Utilization of Sodium Nitroprusside as an Intestinal Permeation Enhancer for Lipophilic Drug Absorption Improvement in the Rat Proximal Intestine2021

    • Author(s)
      Kishimoto Hisanao、Miyazaki Kaori、Tedzuka Hiroshi、Ozawa Ryosuke、Kobayashi Hanai、Shirasaka Yoshiyuki、Inoue Katsuhisa
    • Journal Title

      Molecules

      Volume: 26 Issue: 21 Pages: 6396-6396

    • DOI

      10.3390/molecules26216396

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Role of SLC46A3 in intracellular dynamics of therapeutic modalities involving endocytosis2023

    • Author(s)
      K. Inoue
    • Organizer
      The international joint meeting of the 23rd International Conference on Cytochrome P450 (ICCP450) and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics (JSSX)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Regulation of localization and function of MCT7 by ancillary proteins CD147 and GP702023

    • Author(s)
      K. Higuchi, M. Kunieda, H. Kishimoto, K. Inoue
    • Organizer
      The international joint meeting of the 23rd International Conference on Cytochrome P450 (ICCP450) and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics (JSSX)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Substrate specificity of monocarboxylate transporter 6 (MCT6)2023

    • Author(s)
      K. Sugiyama, H. Shimano, K. Higuchi, H. Kishimoto, K. Inoue
    • Organizer
      The international joint meeting of the 23rd International Conference on Cytochrome P450 (ICCP450) and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics (JSSX)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Methotrexate resistance by Slc16a6/MCT7 in cancer cells2023

    • Author(s)
      M. Kunieda, Y. Otsuka, K. Higuchi, H. Kishimoto, K. Inoue
    • Organizer
      The international joint meeting of the 23rd International Conference on Cytochrome P450 (ICCP450) and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics (JSSX)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of genetic polymorphisms in SLC46A3 on the transport function and efficacy of trastuzumab emtansine2023

    • Author(s)
      N. Saito, R. Tomabechi, Y. Kawakita, K. Kiyomiya, H. Kishimoto, K. Higuchi, K. Inoue
    • Organizer
      The international joint meeting of the 23rd International Conference on Cytochrome P450 (ICCP450) and the 38th Annual Meeting of the Japanese Society for the Study of Xenobiotics (JSSX)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] モノカルボン酸トランスポーター6(MCT6)の輸送解析2023

    • Author(s)
      杉山滉基、嶋野ひろ恵、樋口 慧、志村優太、岸本久直、井上勝央
    • Organizer
      日本薬剤学会第38年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 蛍光基質を用いたSLC46A3機能評価系の構築と新規基質探索への応用2023

    • Author(s)
      苫米地隆人、井上勝央、宮里美希、佐藤妙華、高田龍平、樋口 慧、岸本久直、白坂善之
    • Organizer
      日本薬剤学会第38年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] SLC46A3遺伝子多型が輸送機能とトラスツズマブエムタンシンの殺細胞効果へ与える影響2023

    • Author(s)
      齊藤直希、苫米地隆人、川喜多佑香、清宮啓介、岸本久直、樋口 慧、井上勝央
    • Organizer
      日本薬剤学会第38年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] リソソームから薬物を取り出すトランスポーターの同定と抗体薬物複合体(ADC)の薬効発現における役割2023

    • Author(s)
      井上勝央
    • Organizer
      日本薬剤学会第38年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] リソソームから薬物を取り出すトランスポーターの同定と抗体薬物複合体(ADC)の薬効発現における役割2023

    • Author(s)
      井上勝央
    • Organizer
      第17回トランスポーター研究会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] アクセサリータンパク質によるSlc16a6/MCT7機能制御2023

    • Author(s)
      樋口 慧、國枝美里、岸本久直、井上勝央
    • Organizer
      第67回薬学会関東支部会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 蛍光プローブを用いたMCT6/SLC16A5の基質特異性の評価2023

    • Author(s)
      杉山滉基、嶋野ひろ恵、樋口 慧、岸本久直、井上勝央
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] マクロライド系抗菌薬がトラスツズマブエムタンシンの殺細胞効果に与える影響2023

    • Author(s)
      清宮啓介、苫米地隆人、齊藤直希、渡井健太、高田龍平、白坂善之、 岸本久直、樋口 慧、井上勝央
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Trastuzumab emtansineの有効性に影響を及ぼすSLC46A3遺伝子多型の探索2023

    • Author(s)
      齊藤直希、苫米地隆人、川喜多佑香、清宮啓介、岸本久直、樋口 慧、井上勝央
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] モノカルボン酸トランスポーター6(MCT6)の輸送解析2022

    • Author(s)
      杉山 滉基、嶋野 ひろ恵、樋口 慧、志村 優太、岸本 久直、井上 勝央
    • Organizer
      日本薬剤学会第37年会
    • Related Report
      2022 Research-status Report
  • [Presentation] リソソーム膜タンパク質SLC46A3の機能同定2022

    • Author(s)
      苫米地 隆人、岸本 久直、佐藤 妙華、齊藤 直希、清宮 啓介、高田 龍平、樋口 慧、白坂 善之、井上 勝央
    • Organizer
      日本薬剤学会第37年会
    • Related Report
      2022 Research-status Report
  • [Presentation] オーファントランスポーター MCT7/Slc16a6の内因性基質の同定2022

    • Author(s)
      國枝 美里、樋口 慧、岸本 久直、井上 勝央
    • Organizer
      日本薬剤学会第37年会
    • Related Report
      2022 Research-status Report
  • [Presentation] リソソームトランスポーターSLC46A3を介したトラスツズマブ エムタンシン-薬物相互作用に関する検討2022

    • Author(s)
      苫米地 隆人、岸本 久直、佐藤 妙華、齊藤 直希、清宮 啓介、高田 龍平、樋口 慧、白坂 善之、井上 勝央
    • Organizer
      医療薬学フォーラム2022 第30回クリニカルファーマシーシンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] オーファントランスポーターSLC46A3の機能同定2022

    • Author(s)
      苫米地 隆人、岸本 久直、佐藤 妙華、齊藤 直希、清宮 啓介、高田 龍平、樋口 慧、白坂 善之、井上 勝央
    • Organizer
      第16回トランスポーター研究会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] MCT6/SLC16A5 is a chloride sensitive organic anionic transporter2022

    • Author(s)
      Koki Sugiyama, Hiroko Shimano, Kei Higuchi, Hisanao Kishimoto, Katsuhisa Inoue
    • Organizer
      日本薬物動態学会第37年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Functional identification of SLC46A3 and its implication in the efficacy of trastuzumab emtansine2022

    • Author(s)
      Ryuto Tomabechi, Hisanao Kishimoto, Taeka Sato, Naoki Saito, Keisuke Kiyomiya, Tappei Takada, Kei Higuchi, Yoshiyuki Shirasaka, Katsuhisa Inoue
    • Organizer
      日本薬物動態学会第37年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 抗体薬物複合体(ADC)の有効性を最適化のための方法論2022

    • Author(s)
      井上 勝央
    • Organizer
      BioJapan 2022 World Business Forum
    • Related Report
      2022 Research-status Report
  • [Presentation] SLC46A3の蛍光基質の新規同定及び基質/阻害剤探索への応用2022

    • Author(s)
      苫米地 隆人、宮里 美希、佐藤 妙華、高田 龍平、樋口 慧、岸本 久直、白坂 善之、井上 勝央
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] MCT6/SLC16A5の細胞内局在の解析と内因性基質の探索2022

    • Author(s)
      杉山滉基、樋口慧、志村優太、岸本久直、井上勝央
    • Organizer
      日本薬学会第141年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Identification of an endogenous substrate of MCT62021

    • Author(s)
      Koki Sugiyama, Kei Higuchi, Yuta Shimura, Hisanao Kishimoto, Katsuhisa Inoue
    • Organizer
      日本薬物動態学会第36回年会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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