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New molecular mechanisms for membrane-mediated transcellular transport across the blood brain barrier

Research Project

Project/Area Number 21H02649
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 47060:Clinical pharmacy-related
Research InstitutionKumamoto University

Principal Investigator

Ohtsuki Sumio  熊本大学, 大学院生命科学研究部(薬), 教授 (60323036)

Co-Investigator(Kenkyū-buntansha) 伊藤 慎悟  熊本大学, 大学院生命科学研究部(薬), 准教授 (20466535)
増田 豪  熊本大学, 大学院生命科学研究部(薬), 助教 (70383940)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2022: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords脳関門 / 脳毛細血管 / 膜輸送 / 内在化 / DDS / プロテオミクス / 血液脳関門
Outline of Research at the Start

血液脳関門の膜介在型経細胞輸送は、中高分子の中枢DDSの標的として注目されている。しかし、応用性の広い膜吸着介在性トランスサイトーシスや透過方向性を規定する分泌過程の機構は不明である。本研究では新規知見を基盤とし血液脳関門の膜吸着介在性トランスサイトーシス及び分泌過程に関わる分子機構を解明し、新たな分子機構を統合し膜介在型経細胞輸送制御による中枢DDSの機能の促進を試みる。以上の知見は中枢DDSの開発と機能向上だけでなく、中枢維持機構としての血液脳関門輸送の新規生理機能の理解に重要である。

Outline of Final Research Achievements

Membrane-mediated transcellular transport of the blood-brain barrier (BBB) has attracted attention as a target for brain delivery. The aim of this study was to develop new knowledge on the transport mechanisms of the membrane-mediated transcellular transport of the BBB, the effects of target molecules on cell functions, and new analytical techniques based on the new findings of the principal investigators. The insulin receptor functions to maintain BBB function in brain capillaries. A newly identified internalized molecule, podocalyxin, is involved in the recycling of plasma membrane proteins. Furthermore, by integrating our original brain capillary isolation technology with the latest proteome analysis technology, we succeeded in obtaining high-depth BBB proteome information and clarified the diurnal variation of the BBB and changes in the BBB proteome in neonates. The results obtained will be important for understanding delivery and drug distribution to the brain in the future.

Academic Significance and Societal Importance of the Research Achievements

脳へのdeliveryの標的分子はBBBに発現する内在性タンパク質であるため、分子本来の脳毛細血管に対する機能を有する。つまりdelivery標的としての機能と内在性機能が干渉する可能性があり、本研究の成果はそのような干渉を見積もるために重要な知見を与える。また、脳へのdelivery開発には種差が問題となっており、また、病態時に健常と同様に脳へ分布するかも重要である。本研究で開発した高深度BBBプロテオーム解析技術はそのような課題に重要な情報を与える技術である。

Report

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

    (37 results)

All 2023 2022 2021 Other

All Journal Article (11 results) (of which Peer Reviewed: 9 results,  Open Access: 2 results) Presentation (24 results) (of which Int'l Joint Research: 12 results,  Invited: 12 results) Remarks (2 results)

  • [Journal Article] Advancement of Water Droplet-in-Oil Digestion Method for High-Throughput Single-Cell Proteomics2023

    • Author(s)
      Yamahiro Maki、Masuda Takeshi、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Journal of the Mass Spectrometry Society of Japan

      Volume: 71 Issue: 4 Pages: 153-154

    • DOI

      10.5702/massspec.S23-52

    • ISSN
      1340-8097, 1880-4225, 1884-3271
    • Year and Date
      2023-12-01
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Effect of antibiotic-administration period on hepatic bile acid profile and expression of pharmacokinetic-related proteins in mouse liver, kidney, and brain capillaries2023

    • Author(s)
      Yagi Ryotaro、Masuda Takeshi、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Drug Metabolism and Pharmacokinetics

      Volume: 50 Pages: 100494-100494

    • DOI

      10.1016/j.dmpk.2023.100494

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of a method for isolating brain capillaries from a single neonatal mouse brain and comparison of proteomic profiles between neonatal and adult brain capillaries2023

    • Author(s)
      Hamada Yudai、Ogata Seiryo、Masuda Takeshi、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Fluids and Barriers of the CNS

      Volume: 20 Issue: 1 Pages: 50-50

    • DOI

      10.1186/s12987-023-00449-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Proteomic alterations in the brain and blood?brain barrier during brain Aβ accumulation in an APP knock-in mouse model of Alzheimer’s disease2023

    • Author(s)
      Ito Shingo、Yagi Ryotaro、Ogata Seiryo、Masuda Takeshi、Saito Takashi、Saido Takaomi、Ohtsuki Sumio
    • Journal Title

      Fluids and Barriers of the CNS

      Volume: 20 Issue: 1 Pages: 66-66

    • DOI

      10.1186/s12987-023-00466-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Technical Basics and Applications of Quantitative Targeted Absolute Proteomics2023

    • Author(s)
      大槻 純男
    • Journal Title

      Proteome Letters

      Volume: 8 Issue: 2 Pages: 35-42

    • DOI

      10.14889/jpros.8.2_35

    • ISSN
      2432-2776
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Diurnal Changes in Protein Expression at the Blood–Brain Barrier in Mice2022

    • Author(s)
      Ogata Seiryo、Ito Shingo、Masuda Takeshi、Ohtsuki Sumio
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 45 Issue: 6 Pages: 751-756

    • DOI

      10.1248/bpb.b22-00016

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2022-06-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Knockdown of Podocalyxin Post-Transcriptionally Induces the Expression and Activity of ABCB1/MDR1 in Human Brain Microvascular Endothelial Cells2022

    • Author(s)
      Nagano Hinako、Ogata Seiryo、Ito Shingo、Masuda Takeshi、Ohtsuki Sumio
    • Journal Title

      Journal of Pharmaceutical Sciences

      Volume: - Issue: 6 Pages: 1812-1819

    • DOI

      10.1016/j.xphs.2022.02.006

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Human Hepatic Transporter Signature Peptides for Quantitative Targeted Absolute Proteomics: Selection, Digestion Efficiency, and Peptide Stability2022

    • Author(s)
      Mori Ayano、Masuda Takeshi、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Pharmaceutical Research

      Volume: 39 Issue: 11 Pages: 2965-2978

    • DOI

      10.1007/s11095-022-03387-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Insulin Receptor-Knockdown on the Expression Levels of Blood?Brain Barrier Functional Proteins in Human Brain Microvascular Endothelial Cells2021

    • Author(s)
      Nagano Hinako、Ito Shingo、Masuda Takeshi、Ohtsuki Sumio
    • Journal Title

      Pharmaceutical Research

      Volume: - Issue: 7 Pages: 1561-1574

    • DOI

      10.1007/s11095-021-03131-8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantitative and targeted proteomics-based identification and validation of drug efficacy biomarkers2021

    • Author(s)
      Masuda Takeshi、Mori Ayano、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Drug Metabolism and Pharmacokinetics

      Volume: 36 Pages: 100361-100361

    • DOI

      10.1016/j.dmpk.2020.09.006

    • NAID

      210000165083

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Advances in sample preparation for membrane proteome quantification2021

    • Author(s)
      Masuda Takeshi、Ito Shingo、Ohtsuki Sumio
    • Journal Title

      Drug Discovery Today: Technologies

      Volume: 39 Pages: 23-29

    • DOI

      10.1016/j.ddtec.2021.06.005

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] Methodologies and applications of proteomics for biomarker research2023

    • Author(s)
      Sumio Ohtsuk
    • Organizer
      2023 ICCP450/JSSX
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] オミクスでトランスレーションの「壁」を壊せるのか?2023

    • Author(s)
      大槻純男
    • Organizer
      第27回 薬物動態談話会セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] マウス凍結脳からの脳毛細血管単離法の開発とBBBプロテオーム変動解析への応用2023

    • Author(s)
      伊藤慎悟, 緒方星陵, 八木遼太郎, 増田豪, 大槻純男
    • Organizer
      日本薬剤学会第38年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 定量プロテオミクスを利用した新生児マウス単離脳毛細血管の評価と血液脳関門プロテオームの成長変化の解明2023

    • Author(s)
      濱田祐大、緒方星陵、増田豪、伊藤慎悟、大槻純男
    • Organizer
      日本プロテオーム学会2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Analysis of the differences in brain microvascular endothelial cells between mice and humans by deep proteomics.2023

    • Author(s)
      Haruka Kumabe, Takeshi Masuda, Tomomi Furihata, Shingo Ito, Norie Araki, Sumio Ohtsuki
    • Organizer
      Cerebral Vascular Biology 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efficient isolation of brain capillary from a single frozen mouse brain and a small amount of frozen human brain for protein expression analysis.2023

    • Author(s)
      Shingo Ito, Serio Ogata, Takeshi Masuda, Sumio Ohtsuki
    • Organizer
      Cerebral Vascular Biology 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Isolation of brain capillaries from a single frozen mouse brain for quantitative proteomics2023

    • Author(s)
      Shingo Ito, Serio Ogata, Takeshi Masuda, Sumio Ohtsuki
    • Organizer
      AFPS2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高深度プロテオミクスを用いた血液脳関門の種差の解明2023

    • Author(s)
      隈部遥香、増田豪、降幡知巳、伊藤慎悟、荒木令江、大槻純男
    • Organizer
      日本プロテオーム学会2023年大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] プロテオーム解析に基づく脳内Aβ蓄積による脳病態進行と血液脳関門障害の関係の解明2023

    • Author(s)
      伊藤慎悟, 八木遼太郎, 緒方星陵, 増田豪, 斉藤貴志, 西道隆臣, 大槻純男
    • Organizer
      第42回日本認知症学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 最新プロテオームを活用した細胞機能の解析2023

    • Author(s)
      大槻純男
    • Organizer
      第3回NCBAワーキンググループ研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] クレアチントランスポーター欠損マウスを用いた経口投与後のクレアチン体内動態の解明2023

    • Author(s)
      田代 尚人、宮野 綾華、伊藤 慎悟、杉本 道彦、荒木 喜美、中尾 聡宏、中潟 直己、竹尾 透、増田 豪、大槻 純男
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cyclic peptide carriers to facilitate intestinal absorption and BBB permeability2023

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      BI Nanocarrier Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Blood-Brain Barrier Proteomics2023

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      5th Mini-Symposium on the Blood-Brain Barrier
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Proteome-based approach to human health and disease2023

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      CCII/ CGM Joint Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Receptor-mediated transport for delivery of macro- and middle-molecular drug across biological barriers.2022

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      日本薬物動態学会第37回年会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Changes in creatine levels in mouse models of creatine transporter deficiency syndrome2022

    • Author(s)
      Ayaka Miyano, Shingo Ito, Yumi Iwata, Shin Nishiumi, Tomohide Gotoh, Michihiko Sugimoto, Kimi Araki, Satohiro Nakao, Naomi Nakagata, Toru Takeo, Takeshi Masuda, Sumio Ohtsuki
    • Organizer
      The 3rd international virtual forum on modern pharmacology and toxicology
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Regulation of the blood-brain barrier by membrane receptor2022

    • Author(s)
      Sumio Ohtsuki, Hinako Nagano, Seiryo Ogata, Takeshi Masuda, Shingo Ito
    • Organizer
      4th Mini-Symposium on the Blood-Brain Barrier from Basic to Clinical Research
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 定量プロテオミクスを基盤とする血液脳関門における物質輸送分子と病態発症機構の解明2022

    • Author(s)
      伊藤慎悟
    • Organizer
      日本薬学会第142年会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cyclic peptides facilitating intestinal absorption and blood-brain barrier permeability2021

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      Pacifichem2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 質量分析を用いた高感度タンパク質定量のノウハウ2021

    • Author(s)
      大槻純男
    • Organizer
      慶應薬学先端実学(サイヤンス)セミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Impact of intestinal flora on host metabolism of drug, sugar and lipid2021

    • Author(s)
      Sumio Ohtsuki
    • Organizer
      The 39th Frontier Scientists Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] マウス大脳と小脳の単離毛細血管における血液脳関門プロテオーム比較解析2021

    • Author(s)
      吉田尚功、伊藤慎悟、緒方星陵、増田豪、大槻純男
    • Organizer
      日本薬剤学会第36年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 細胞膜タンパク質ビオチン標識法とSWATH-MSによる網羅的タンパク質定量法を組み合わせたヒト脳毛細血管内皮細胞における細胞内内在化膜タンパク質の同定2021

    • Author(s)
      伊藤慎悟、大石真梨子、緖方星陵、上村立記、Pierre-Olivier Couraud、増田豪、大槻純男
    • Organizer
      第37回日本DDS学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エチレングリコールを用いた細胞分画法とプロテオミクスへの応用2021

    • Author(s)
      増田豪、伊藤慎悟、石濱泰、大槻純男
    • Organizer
      第42回生体膜と薬物の相互作用シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Remarks] 熊本大学大学院生命科学研究部微生物薬学分野

    • URL

      https://ohtsuki-lab.jp/ja/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] 熊本大学大学院生命科学研究部微生物薬学分野

    • URL

      https://ohtsuki-lab.jp/

    • Related Report
      2021 Annual Research Report

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

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