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Effect of growth factor/In Situ-Formed Hydrogel / Artificial bone Composites on Bone Formation

Research Project

Project/Area Number 20K09440
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionKitasato University

Principal Investigator

Saito Wataru  北里大学, 医学部, 准教授 (60439099)

Co-Investigator(Kenkyū-buntansha) 内田 健太郎  北里大学, 医学部, 講師 (50547578)
馬渕 洋  順天堂大学, 大学院医学研究科, 特任准教授 (50424172)
関口 裕之  湘南医療大学, 臨床医学研究所, 研究員 (90547233)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords脊椎固定術 / 骨癒合促進 / 成長因子導入 / 多孔質剤材料 / 局所硬化ゲル / スフェロイド培養 / 間葉系幹細胞 / 骨形成蛋白 / 脊椎固定 / 人工骨 / 多孔質材料 / 細胞 / 成長因子
Outline of Research at the Start

多孔質材料への細胞、成長因子導入に適した局所硬化ゲルの開発を行い、ラット後側方固定術(PLF)モデルを用いて本シーズの脊椎固定術に対する有用性を検討する1.多孔質材料への細胞、成長因子導入に適した局所硬化ゲル組成を検討する。次に、2.ラットPLFを用いて骨癒合促進効果を明らかにする。3.蛍光標識した細胞、成長因子を用いて移植後の細胞、成長因子の体内動態を検討する。実用化に向けて4. ヒト細胞を用いた検証を行う。

Outline of Final Research Achievements

Several types of calcium phosphate (CaP) biomaterial carriers have been designed to deliver bone morphogenetic protein-2 (BMP-2) to augment spinal fusion in spinal surgery. Here, we evaluated an in situ-formed hydrogel (IFH) constructed from hyaluronan (IFH-HA) combined with a BMP2/hydroxyapatite (HAP) composite in bone formation in a murine model of posterolateral lumbar fusion (PLF). BMP2/IFH-HA group exhibited newly formed bone between the transverse processes and bone union in coronal sections. Relative to the Control and BMP2/HA-TA groups, the BMP2/IFH-HA group showed significantly greater bone volume. The BMP2/IFH-HA group also showed significantly elevated bone mineral content relative to the BMP2/HA-TA group. A composite comprising BMP2/HAP and IFH-HA, thus, enhanced the new bone formation in a murine model of PLF, suggesting its promise for augmenting spinal fusion.

Academic Significance and Societal Importance of the Research Achievements

本方法は多孔質材料の材質により左右されないため、既存の人工骨に加え、新たに開発された如何なる多孔質材料に対しても成長因子の導入が可能である。また、本研究は水溶液の状態で多孔質材料の全域に成長因子を浸透させたのちにゲル化を行うため、材料全体に成長因子を含有させることが容易である。本研究は脊椎固定術のみならず、外傷、腫瘍に伴う骨欠損、軟骨欠損治療など多孔質材料を用いた様々な運動器治療アプリケーションに応用できる可能性を秘めている。

Report

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

    (4 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (1 results)

  • [Journal Article] Effect of spheroid size on gene expression profiles of a mouse mesenchymal stem cell line in spheroid culture2023

    • Author(s)
      Kuroda A, Mineo A, Shoji S, Inoue G, Saito W, Sekiguchi H, Takaso M, Uchida K
    • Journal Title

      Biomed Mater Eng

      Volume: 34 Issue: 1 Pages: 67-76

    • DOI

      10.3233/bme-221406

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Bone Morphogenetic Protein-2 (BMP-2)/Hydroxyapatite/In Situ-Formed Hyaluronan Hydrogel Composites on Bone Formation in a Murine Model of Posterolateral Lumbar Fusion2022

    • Author(s)
      Kuroda A, Saito W, Inoue G, Miyagi M, Shoji S, Sekiguchi H, Takaso M, Uchida K
    • Journal Title

      Cureus

      Volume: 14

    • DOI

      10.7759/cureus.25509

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Limitations of posterior spinal fusion to L5 for flaccid neuromuscular scoliosis focusing on pelvic obliquity2021

    • Author(s)
      Saito W, Inoue G, Shirasawa E, Imura T, Nakazawa T, Miyagi M, Kawakubo A, Uchida K, Kotani T, Akazawa T, Takaso M
    • Journal Title

      Spine Deform

      Volume: 9 Issue: 2 Pages: 559-565

    • DOI

      10.1007/s43390-020-00214-1

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] ヒアルロン酸硬化ゲルを用いてBMP-2を導入した人工骨の後側方固定術における骨形成促進効果の検討2021

    • Author(s)
      黒田 晃義, 内田 健太郎, 庄司 真太郎, 横関 雄司, 宮城 正行, 齋藤 亘, 井上 玄, 高相 晶士
    • Organizer
      第36回日本整形外科学会基礎学術集会
    • Related Report
      2021 Research-status Report

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

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