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FGF-2 absorbed artificial dura mater for protective treatment of cerebral contusion

Research Project

Project/Area Number 20K17950
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

Ito Yoshiro  筑波大学, 医学医療系, 講師 (90733014)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords脳挫傷 / FGF-2 / PGA / FGF-2徐放システム / FGF-2徐放性PGA / FGF-2徐放性人工硬膜
Outline of Research at the Start

FGF-2は血液脳関門の保護効果などの効果があるが、生物学的活性はきわめて短い。人工硬膜素材であるPGA不織布をプラズマ処理することで、ナノ構造・表面性状制御に基づいてFGF-2の吸着・徐放システムを確立した。本研究では、FGF-2吸着PGAという新規FGF-2徐放性人工硬膜を開発し、脳挫傷モデルにおける二次性脳損傷軽減効果を明らかにする。①FGF-2吸着PGAのFGF-2動態評価、②効果検証、③作用機序解明という3段階で実験を行う。FGF-2、PGAともに臨床利用されており、本研究の成果は臨床応用しやすい。また本研究の知見は脳組織の二次性障害の軽減効果や再生医療の相乗効果も期待される。

Outline of Final Research Achievements

In the preparation of FGF-2 adsorbed PGA, 0.5 W/cm2 plasma treatment was the most stable condition to adsorb FGF-2 on PGA. The amount of FGF-2 released could be adjusted by the concentration of FGF-2 solution and number of PGA sheets.
The effect of FGF-2 adsorbed PGA on a brain contusion model was examined. When FGF-2 adsorbed PGA was directly implanted at the site of brain contusion immediately after the creation of brain contusion, histological evaluation on day 14 showed an increase in neural progenitor cells and VEGF-positive cells around the brain contusion.

Academic Significance and Societal Importance of the Research Achievements

脳挫傷の一次脳損傷に対する治療法は確立されておらず、神経後遺症をきたす主な原因となっている。本研究では急性期にFGF-2吸着PGAを用いることで神経前駆細胞の増加を認めたことから、脳挫傷の一次脳損傷に対する新規治療法となりうる可能性がある。また脳挫傷以外の二次性脳障害に対しても神経機能回復としての新規治療として期待できる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (2 results)

All 2023 2022

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (1 results)

  • [Journal Article] Induction of angiogenesis and neural progenitor cells by basic fibroblast growth factor‐releasing polyglycolic acid sheet following focal cerebral infarction in mice2022

    • Author(s)
      Ito Yoshiro、Oyane Ayako、Yasunaga Mayu、Hirata Koji、Hirose Motohiro、Tsurushima Hideo、Ito Yuzuru、Matsumaru Yuji、Ishikawa Eiichi
    • Journal Title

      Journal of Biomedical Materials Research Part A

      Volume: 110 Issue: 12 Pages: 1964-1975

    • DOI

      10.1002/jbm.a.37434

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Presentation] 脳梗塞モデルに対するFGF-2徐放性人工硬膜による神経前駆細胞の増加2023

    • Author(s)
      伊藤嘉朗
    • Organizer
      STROKE2023
    • Related Report
      2022 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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