• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Molecular mechanisms of transport function at the BBB in epilepsy for normalizing cerebral PGE2 level

Research Project

Project/Area Number 16K08365
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Medical pharmacy
Research InstitutionUniversity of Toyama

Principal Investigator

Akanuma Shin-ichi  富山大学, 大学院医学薬学研究部(薬学), 助教 (30467089)

Co-Investigator(Kenkyū-buntansha) 細谷 健一  富山大学, 大学院医学薬学研究部(薬学), 教授 (70301033)
Research Collaborator KUBO Yoshiyuki  
TACHIKAWA Masanori  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords血液脳関門 / プロスタグランジン / PGE2 / 有機アニオン輸送担体 / てんかん / L-グルタミン酸 / BBB / 脳毛細血管 / グルタミン酸
Outline of Final Research Achievements

This study aimed to elucidate the mechanism about the attenuation of prostaglandin (PG) E2 efflux transport across the blood-brain barrier (BBB) by L-glutamate, which level is increased in epilepsy. In this study, it is suggested that both PGE2 and PGD2 are eliminated from the brain via organic anion transporter 3 (OAT3) and multidrug resistance-associated protein 4 (MRP4) at the BBB. To examine the detail of the functional alteration of OAT3 and MRP4 at the BBB, an ex vivo transport analysis using isolated rat brain capillaries has been established. Using this analytical method, we demonstrated the attenuation of transport function via OAT3 and MRP4 at the BBB via the activation of NMDA-type L-glutamate receptors. This study could help us to consider the therapeutic strategy to treat the neuroexcitatory diseases, such as epilepsy.

Academic Significance and Societal Importance of the Research Achievements

本研究成果について、興奮性神経伝達が病態の発現・進行に関与するてんかんなどの中枢神経系疾患に対し、脳内環境正常化を目的とした治療法開発に繋がると期待される。本研究を通じ、NMDA受容体とプロテインキナーゼCがBBBを介したPG排出輸送を調節していることが見出された。そのため、これら疾患時に共に脳内濃度が上昇するPGについて、濃度を正常化する上で、BBBに発現するこれら標的を用いてPGE2排出を促進・正常化することが方策の一つとして提案される。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (23 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (17 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Int'l Joint Research] University of Kentucky(米国)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Organic anion-transporting polypeptide 1a4–mediated heterogeneous distribution of sulforhodamine-101 in rat hepatic lobules2019

    • Author(s)
      Akanuma S、Kida R、Tsuchiyama A、Tachikawa M、Kubo Y、Hosoya K
    • Journal Title

      Drug Metabolism and Pharmacokinetics

      Volume: 34 Issue: 4 Pages: 239

    • DOI

      10.1016/j.dmpk.2019.04.001

    • NAID

      50014558511

    • URL

      https://pure.teikyo.jp/en/publications/6668560e-6e37-427e-9657-241b72376233

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Role of L-type amino acid transporter 1 at the inner blood-retinal barrier in the Blood-to-Retina Transport of Gabapentin2018

    • Author(s)
      Akanuma Shin-ichi、Yamakoshi Atsuko、Sugouchi Takeshi、Kubo Yoshiyuki、Hartz Anika M. S.、Bauer Bjoern、Hosoya Ken-ichi
    • Journal Title

      Molecular Pharmaceutics

      Volume: 15 Issue: 6 Pages: 2327-2337

    • DOI

      10.1021/acs.molpharmaceut.8b00179

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Role of cationic drug-sensitive transport systems at the blood-cerebrospinal fluid barrier in para-tyramine elimination from rat brain2018

    • Author(s)
      Akanuma S., Yamazaki Y., Kubo Y., Hosoya K.
    • Journal Title

      Fluids Barriers CNS

      Volume: 15 Issue: 1 Pages: 1

    • DOI

      10.1186/s12987-017-0087-9

    • URL

      https://localhost/en/publications/000629ff-58c1-449e-86fc-c28bb38a0e39

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Expression and function of connexin 43 protein in mouse and human retinal pigment epithelial cells as hemichannels and gap junction proteins2018

    • Author(s)
      Akanuma S., Higashi H., Maruyama S., Murakami K., Tachikawa M., Kubo Y., Hosoya K.
    • Journal Title

      Exp. Eye Res.

      Volume: 168 Pages: 128

    • DOI

      10.1016/j.exer.2018.01.016

    • URL

      https://localhost/en/publications/201cd638-6f83-4208-be82-8f3897eb5ac8

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Involvement of Carrier-Mediated Transport at the Blood–Cerebrospinal Fluid Barrier in Spermine Clearance from Rat Brain2017

    • Author(s)
      Akanuma S., Shimada H., Kubo Y., Hosoya K.
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 40 Issue: 9 Pages: 1599-1603

    • DOI

      10.1248/bpb.b17-00394

    • NAID

      130006038783

    • ISSN
      0918-6158, 1347-5215
    • URL

      https://localhost/en/publications/ad60d432-2414-40e1-8657-91dda4aab624

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 単離脳毛細血管を用いた血液脳関門におけるアニオン輸送機構変動解析2019

    • Author(s)
      吉田 有紀子、赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 血液網膜関門を介したgabapentin輸送におけるL型アミノ酸トランスポーター1の役割2019

    • Author(s)
      赤沼 伸乙、山腰 敦子、須河内 剛志、久保 義行、Anika M.S. Hartz、Bjoern Bauer、細谷 健一
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 血液脳関門を介した脳へのgabapentin輸送におけるL型アミノ酸トランスポーター1(LAT1)の関与2019

    • Author(s)
      須河内 剛志、赤沼 伸乙、久保 義行、Anika M.S. Hartz、Bjoern Bauer、細谷 健一
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 網膜へのガバペンチン移行における内側血液網膜関門中性アミノ酸輸送担体LAT1の役割2018

    • Author(s)
      赤沼 伸乙、山腰 敦子、須河内 剛志、久保 義行、Anika M.S. Hartz、Bjoern Bauer、細谷 健一
    • Organizer
      公益社団法人日本薬剤学会 第33年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 血液網膜関門におけるgabapentin輸送へのL型アミノ酸トランスポーター1の関与2018

    • Author(s)
      赤沼 伸乙、山腰 敦子、須河内 剛志、久保 義行、Anika M.S. Hartz、Bjoern Bauer、細谷 健一
    • Organizer
      富山・バーゼル医薬品研究開発シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Functional heterogeneity of Oatp1a4-mediated transport in hepatocytes of rat hepatic lobules2018

    • Author(s)
      Shin-ichi Akanuma, Rintaro Kida, Ai Tsuchiyama, Masanori Tachikawa, Yoshiyuki Kubo, Ken-ichi Hosoya
    • Organizer
      2018 International Meeting on 22nd MDO and 33rd JSSX
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] L-Type amino acid transporter 1 at the inner and outer blood-retinal barriers mediates the blood-to-retina transport of gabapentin2018

    • Author(s)
      Atsuko Yamakoshi, Shin-ichi Akanuma, Takeshi Sugouchi, Yoshiyuki Kubo, Anika M.S. Hartz, Bjoern Bauer, Ken-ichi Hosoya
    • Organizer
      2018 International Meeting on 22nd MDO and 33rd JSSX
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] L-Type amino acid transporter-mediated blood-to-brain gabapentin transport across the blood-brain barrier2018

    • Author(s)
      Takeshi Sugouchi, Shin-ichi Akanuma, Yoshiyuki Kubo, Anika M.S. Hartz, Bjoern Bauer, Ken-ichi Hosoya
    • Organizer
      2018 International Meeting on 22nd MDO and 33rd JSSX
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Gabapentinの網膜移行に対する血液網膜関門L型アミノ酸トランスポーターの関与2018

    • Author(s)
      山腰 敦子、赤沼 伸乙、須河内 剛志、久保 義行、Anika M.S. Hartz、Bjoern Bauer、細谷 健一
    • Organizer
      日本薬学会北陸支部第130回例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] NMDA受容体による血液脳関門を介したアニオン輸送機構変動解析2018

    • Author(s)
      吉田 有紀子、赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会北陸支部第130回例会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 薬剤耐性てんかんの克服に向けた血液脳関門薬物・内因性化合物輸送機構解明2018

    • Author(s)
      赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会 第138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 脳内tyramineクリアランスへの血液脳脊髄液関門排出輸送機構の関与2017

    • Author(s)
      山﨑 雄平、赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会第137年会 (仙台)
    • Place of Presentation
      仙台市 (宮城県)
    • Year and Date
      2017-03-24
    • Related Report
      2016 Research-status Report
  • [Presentation] Efflux transport of epilepsy-related compounds at the blood-brain barrier.2017

    • Author(s)
      Shin-ichi Akanuma, Yoshiyuki Kubo, Ken-ichi Hosoya
    • Organizer
      APSTJ Global Educational Seminar 2017 - 2nd
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 血液脳関門を介した脳へのgabapentin輸送機構の解明2017

    • Author(s)
      須河内 剛志、赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会北陸支部 第129回例会
    • Related Report
      2017 Research-status Report
  • [Presentation] ラット血液脳関門プロスタグランジン類排出輸送と変動メカニズム2016

    • Author(s)
      赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      第38回生体膜と薬物の相互作用シンポジウム
    • Place of Presentation
      名古屋市 (愛知県)
    • Year and Date
      2016-11-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 脳からのスペルミン除去への血液脳脊髄液関門担体介在型輸送の関与2016

    • Author(s)
      赤沼 伸乙、島田 浩和、久保 義行、細谷 健一
    • Organizer
      日本薬物動態学会 第31回年会
    • Place of Presentation
      松本市 (長野県)
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
  • [Presentation] 脳関門を介した脳内tyramine消失機構の解明2016

    • Author(s)
      山﨑 雄平、赤沼 伸乙、久保 義行、細谷 健一
    • Organizer
      日本薬学会北陸支部 第128回例会
    • Place of Presentation
      金沢市 (石川県)
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi