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Augmentation of tumor-target delivery of nanomedicine by an acid-responsive N-(2-hydroxypropyl)methacrylamide-based polymer-bradykinin conjugate.

Research Project

Project/Area Number 18K06773
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 InstitutionSojo University

Principal Investigator

Nakamura Hideaki  崇城大学, 薬学部, 講師 (30435151)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsブラジキニン / HPMAポリマー / 抗腫瘍効果 / ナノメディシン / ポリマー / 腫瘍 / EPR効果 / 抗がん効果 / 高分子性抗がん剤
Outline of Final Research Achievements

In the present study, we designed and synthesized a novel N-(2-hydroxypropyl)methacrylamide (HPMA)-based copolymer conjugate of bradykinin (BK), which is an endogenous vasoactive peptide. Pretreatment with the polymer conjugate (P-BK) followed by administration of pegylated liposomal doxorubicin (PLD) in C26 tumor-bearing mice improved intratumoral blood flow (1.4-1.7 fold), increased tumor accumulation of PLD (approximately 3-fold), and demonstrated superior antitumor activity of PLD. Moreover, the combination significantly improved the survival rate of tumor-bearing mice. We believe that our study makes a significant contribution to the literature because the study findings suggest P-BK as a potential candidate to augment the enhanced permeability and retention (EPR) effect in tumors, and its concomitant use is expected to improve tumor delivery of nanomedicines.

Academic Significance and Societal Importance of the Research Achievements

我国においては、およそ年間40万人が「がん」を原因として亡くなっており、死因の第一位を占めている。また、抗体医薬品をはじめとする抗がん剤の高額化も医療財政上の大きな問題となってきている。本研究では、「がん病巣」への抗がん剤の集積性を増強する併用薬の創製に取り組むものである。本研究の結果より、本研究で創製したP-BKは、抗がん効果を維持したまま高分子性抗がん剤の投与量を減らす事が可能であることが示唆された。投与量の減少による副作用の減弱にもつながりうるものでもあり、高分子性抗がん剤を用いたがん治療をさらに発展しうる成果につながるものと期待している。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (9 results)

  • [Int'l Joint Research] チェコ高分子化学研究所(チェコ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Institute of Macromolecular Chemistry(チェコ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] チェコ高分子化学研究所(チェコ)

    • Related Report
      2018 Research-status Report
  • [Journal Article] Superior Penetration and Cytotoxicity of HPMA Copolymer Conjugates of Pirarubicin in Tumor Cell Spheroid2019

    • Author(s)
      Hideaki Nakamura, Eva Koziolova, Petr Chytil, Tomas Etrych, Mamoru Haratake, Hiroshi Maed
    • Journal Title

      Molecuar Pharmaceutics

      Volume: 16 Issue: 8 Pages: 3452-3459

    • DOI

      10.1021/acs.molpharmaceut.9b00248

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ポリマー結合型ブラジキニンを用いた高分子性抗がん剤の腫瘍集積増強法2021

    • Author(s)
      Appiah Enoch、Nakamura Hideaki、Pola Robert、Etrych Tomas、Haratake Mamoru
    • Organizer
      第141回日本薬学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Bradykinin conjugates of N-(2-hydroxypropyl)methacrylamide based polymer for enhancing tumor delivery of nanomedicines2020

    • Author(s)
      Appiah Enoch、中村 秀明、Pola Robert、Etrych Tomas、原武 衛
    • Organizer
      第36回日本DDS学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ポリマー結合型ブラジキニンを用いた腫瘍への薬物送達増強法の検討2020

    • Author(s)
      中村 秀明、Enoch Appiah、Pola Robert、Etrych Tomas、原武 衛
    • Organizer
      日本薬学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 血管透過性亢進ペプチドによる高分子抗がん剤のがん組織デリバリー増強法の検討2019

    • Author(s)
      Enoch Appiah, Hideaki Nakamura, Robert Pola, Tomas Etrych, Mamoru Haratake
    • Organizer
      日本DDS学会
    • Related Report
      2019 Research-status Report
  • [Presentation] An improvement of tumor drug delivery by HPMA based polymer conjugates of vascular permeability enhancing peptide2019

    • Author(s)
      Hideaki Nakamura, Enoch Appiah, Robert Pola, Tomas Etrych, Mamoru Haratake
    • Organizer
      日本癌学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] An improvement of tumor drug delivery by conjugation of vasopressin with HPMA polymer2019

    • Author(s)
      Appiah Enoch、中村 秀明、Robert Pola、Tomas Etrych、原武 衛
    • Organizer
      日本薬学会九州支部
    • Related Report
      2019 Research-status Report
  • [Presentation] 血管透過性増強に基づく 高分子性抗癌剤のがん組織集積増強法の検討2019

    • Author(s)
      中村 秀明
    • Organizer
      日本薬学会第139年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 血管透過性亢進ペプチドを用いた高分子性抗がん剤のがん組織集積増強法の検討2019

    • Author(s)
      アッピア イーノック
    • Organizer
      第35回日本DDS学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] An improvement of tumor drug delivery by HPMA based polymer conjugates of vascular permeability enhancing peptide2019

    • Author(s)
      中村 秀明
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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