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Development of therapeutically active nanomaterials: lipoprotein structure/function-based therapeutic strategies to treat intractable ocular diseases

Research Project

Project/Area Number 21H03821
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionToyama Prefectural University

Principal Investigator

Tatsuya Murakami  富山県立大学, 工学部, 教授 (90410737)

Co-Investigator(Kenkyū-buntansha) 小倉 正恒  順天堂大学, 医療科学部, 教授 (30532486)
須田 謙史  京都大学, 医学研究科, 助教 (70779157)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywords脂質ナノ粒子 / 高密度リポタンパク質 / 吸収促進 / 温度応答性 / 血管内皮接着 / 点眼剤 / 注射剤 / 両親媒性ペプチド / ゼブラフィッシュ / 光線力学療法 / リポタンパク質 / 後眼部疾患 / 点眼
Outline of Research at the Start

加齢黄斑変性(age-related macular degeneration,AMD)は、失明に至る眼難治疾患である。応募者は、AMDの病態メカニズムが動脈硬化のそれと類似すること、リポタンパク質 (high-density lipoprotein,HDL)が抗動脈硬化作用を示すこと、HDLが疎水性薬物を結合できることに着目して、眼科医と共同でAMD点眼治療用ドラッグキャリアの開発を進めている。本研究では、工業生産性を考慮した新たなHDL様粒子を作製し、その中から天然のHDLと同等かそれ以上のHDL生物活性を示す粒子を見出すことを目指す。

Outline of Final Research Achievements

We have conducted multifaceted research on reconstituted high-density lipoprotein nanoparticles (HDL) for medical applications and obtained the following important results; (1) a variant of HDL, bearing a cell-penetrating peptide and a neovasculature-targeting peptide, was prepared, and by its eye drop instillation to a mouse model of age-related macular degeneration a significant therapeutic effect was observed; (2) among the partial peptides of the HDL constituent protein, apoA-1, which correspond to single α helix regions of apoA-I, a peptide capable of forming temperature-responsive and anti-inflammatory lipid nanoparticles was discovered; (3) a live imaging method in zebrafish larvae to evaluate the vascular endothelial adhesion of lipid nanoparticles was developed, and a vascular endothelial cell-adhesive variant of HDL was obtained by the above imaging method.

Academic Significance and Societal Importance of the Research Achievements

加齢黄斑変性に対する点眼剤が強く望まれている。新生血管ペプチドが角膜吸収促進剤としても機能し、かつそれを含むHDL改変体が有意な治療効果を示すという今回の発見は、世界初の点眼剤開発に向けた大きな前進である。
我々が見いだした温度応答性脂質ナノ粒子は、有効成分吸収促進や部位特異的薬物輸送に利用できる可能性が高く、将来、医薬品だけでなく化粧品分野での利用が期待される。
敗血症では血中毒素の除去および血管内皮保護が治療標的であり、両機能を有するHDLはそれ自体が治療薬候補である。血管内皮接着性を付与することで、血管内皮選択的薬物送達キャリアとしても利用できる。

Report

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

    (15 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (10 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Book (1 results) Remarks (1 results)

  • [Int'l Joint Research] バーゼル大学(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] バーゼル大学(スイス)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 加齢黄斑変性治療標的としての高密度リポタンパク質2022

    • Author(s)
      村上 達也
    • Journal Title

      別冊BIO Clinica

      Volume: 11 Pages: 92-96

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] Photoregulation of the Membrane Potential of Living Cells with Ferrocene-Porphyrin-Fullerene-Linked Molecules2023

    • Author(s)
      T. Murakami
    • Organizer
      103rd Annual Meeting of the Chemical Society of Japan
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Apolipoprotein A-I由来ペプチドを用いる新規脂質ナノ粒子の作製2023

    • Author(s)
      Y. Mizukami, R. Kawakami, R. Shima, S. Shibukawa, R. Fukuda, T. Murakami
    • Organizer
      The 143rd Annual Meeting of the Japanese Pharmaceutical Society
    • Related Report
      2022 Annual Research Report
  • [Presentation] Donor-Acceptor-Linked Molecules for Controlling the Membrane Potential of Living Cells2022

    • Author(s)
      T. Murakami
    • Organizer
      241th ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Corneal epithelial cell affinity and posterior eye drug delivery ability of lipoprotein variants2022

    • Author(s)
      S. Shibukawa, Y. Tsukio, R. Fukuda, T. Murakmi
    • Organizer
      MBSJ2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neovasculature-targeted lipoprotein mutant eye drops for the treatment of wet age-related macular degeneration in mice2022

    • Author(s)
      R. Kawakami, R. Fukuda, K. Suda, E. Nakano, A. Ichioka, A. Tsujikawa, T. Murakami
    • Organizer
      MBSJ2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 加齢黄斑変性の早期病態改善を目指した網膜内薬物送達法の開発2022

    • Author(s)
      T. Ohashi, R. Fukuda, S. Shibukawa, T. Murakami
    • Organizer
      第71回高分子学会北陸支部研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Comparative analysis of the pharmacokinetic properties of high-density lipoprotein between zebrafish embryos and mice2021

    • Author(s)
      SHIMA, Rumina; FUKUDA, Ryosuke; SHIBUKAWA, Shiori; MIZUKAMI, Yu; KAWAKAMI, Ryo; KAWANISHI, Fumitake; HUWYLER, Jeorg; MURAKAMI, Tatsuya
    • Organizer
      Toyama-Basel Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Potential of engineered lipoprotein eye drops for the treatment of age-related macular degeneration2021

    • Author(s)
      FUKUDA, Ryosuke; NARGIS, Mahmuda; KAWAKAMI, Ryo; NAGAI, Yoshinori; NAKANO, Eri; SUDA, Kenji; TSUJIKAWA, Akitaka; MURAKAMI, Tatsuya
    • Organizer
      Toyama-Basel Meeting 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CD13リガンドと細胞膜透過ペプチドを含む人工HDL点眼剤の可能性2021

    • Author(s)
      福田亮介,NARGIS, Mahmuda,河上亮,長井良憲,中野絵梨,須田謙史,辻川明孝,村上達也
    • Organizer
      第37回日本DDS学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] アクティブターゲティング能を付与した治療用ナノ粒子の作製と生物活性評価2021

    • Author(s)
      河上亮,福田亮介,河西文武,小倉正恒,村上達也
    • Organizer
      第37回日本DDS学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Book] 新規モダリティ医薬品のためのDDS技術と製剤化(第6章、第9節:ペプチド会合体のDDS)2022

    • Author(s)
      村上 達也、澁川 しおり
    • Total Pages
      9
    • Publisher
      技術情報協会
    • ISBN
      9784861049361
    • Related Report
      2022 Annual Research Report
  • [Remarks] 富山県立大学村上研究室HP

    • URL

      https://www.pu-toyama.ac.jp/BR/murakami/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report

URL: 

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

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