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Tissue ingrowth into poly(lactic acid) porous scaffolds by use of PLA/peptide bifunctional molecules

Research Project

Project/Area Number 16H03186
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biomedical engineering/Biomaterial science and engineering
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Yamaoka Tetsuji  国立研究開発法人国立循環器病研究センター, 研究所, 部長 (50243126)

Co-Investigator(Kenkyū-buntansha) 神戸 裕介  国立研究開発法人国立循環器病研究センター, 研究所, 研究員 (30747671)
徐 ユイ  国立研究開発法人国立循環器病研究センター, 研究所, 流動研究員 (10757678)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2017: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Fiscal Year 2016: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords再生医工学材料 / スキャホールド / ポリ乳酸 / ヘテロ結合体
Outline of Final Research Achievements

Our ongoing work concerns the modification of poly(L-lactic acid) (PLLA) scaffolds with oligo(lactic acid)-oligo peptide heteroconjugates as a means to improve their bioactivity. Regrettably, the initial cell attachment exhibited by these scaffolds was unsatisfactory, most likely owing to an insufficient density of peptide molecules bound to the outermost surface of the scaffolds. We succeeded in visualizing and quantifying the peptide molecules at the outmost surface only by staining them with an aqueous solution of fluorescein isothiocyanate (FITC). FITC reacts only with the peptides at the surface but not those embedded in the matrices. In addition, by using this quantification method, an effective strategy to increase the peptide density at the PLLA surface was developed.

Academic Significance and Societal Importance of the Research Achievements

バイオマテリアルのエラスティシティーが注目されているが、表面特性が重要であることも広く認識しており生理活性物質などの導入が進められてきた。その表面解析はESCAやEDSなどが用いられるが、いずれもある深さを持った解析となる。しかし、細胞や組織が認識するのは"最"表面に存在している情報のみであり、その結果、上述前者の工学的な導入率と細胞や組織の応答は必ずしも一致しない。我々は、化学反応を利用した最表面のリンガンド密度を測定することに成功し、それを用いたバイオマテリアル表面の活性化修飾法の確認にも成功した、今後のバイオマテリアル研究の基礎的知見となるものである。

Report

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

    (25 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (13 results) (of which Int'l Joint Research: 1 results) Book (4 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Surface modification of porous alpha-tricalcium phosphate granules with heparin enhanced their early osteogenic capability in a rat calvarial defect model2018

    • Author(s)
      TAKEDA Yoshihiro、HONDA Yoshitomo、KAKINOKI Sachiro、YAMAOKA Tetsuji、BABA Shunsuke
    • Journal Title

      Dental Materials Journal

      Volume: 37 Issue: 4 Pages: 575-581

    • DOI

      10.4012/dmj.2017-305

    • NAID

      130007421028

    • ISSN
      0287-4547, 1881-1361
    • Year and Date
      2018-07-26
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization and quantification of the bioactive molecules immobilized at the outmost surface of PLLA-based biomaterials2018

    • Author(s)
      Hsu Yu-I、Yamaoka Tetsuji
    • Journal Title

      Polymer Degradation and Stability

      Volume: 156 Pages: 66-74

    • DOI

      10.1016/j.polymdegradstab.2018.08.001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Label-Free Separation of Induced Pluripotent Stem Cells with Anti-SSEA-1 Antibody Immobilized Microfluidic Channel2017

    • Author(s)
      A. Otaka, K. Kitagawa, T. Nakaoki, M. Hirata, K. Fukazawa, K. Ishihara, A. Mahara, T. Yamaoka
    • Journal Title

      Langmuir

      Volume: 33 Issue: 6 Pages: 1576-1582

    • DOI

      10.1021/acs.langmuir.6b04070

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Vascular induction and cell infiltration into peptide-modified bioactive silk fibroin hydrogels2017

    • Author(s)
      Kambe Y,Murakoshi A,Urakawa H,Kimura Y,Yamaoka T
    • Journal Title

      Journal of Materials Chemistry B

      Volume: 5 Issue: 36 Pages: 7557-7571

    • DOI

      10.1039/c7tb02109g

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Individual evaluation of cardiac marker expression and self-beating during cardiac differentiation of P19CL6 cells on different culture substrates2017

    • Author(s)
      T. Yamaoka, T. Dan, A. Yamashita, M. Hirata, T. Nakaoki, A. Miskon, S. Kakinoki, A. Mahara
    • Journal Title

      Journal of Biomaterials Research: Part A

      Volume: 印刷中

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Individual evaluation of cardiac marker expression and self-beating during cardiac differentiation of P19CL6 cells on different culture substrate2017

    • Author(s)
      Tetsuji Yamaoka, Mitsuhi Hirata, Takaaki Dan, Atsushi Yamashita, Akihisa Otaka, Takahiko Nakaoki, Azizi Miskon, Sachiro Kakinoki, Atsushi Mahara
    • Journal Title

      Journal of Biomedical Materials research A

      Volume: 105A Issue: 4 Pages: 1166-1174

    • DOI

      10.1002/jbm.a.35977

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] Heparinized alpha-tricalcium phosphate porous scaffolds for bone regeneration with/without bFGFmodification in rat and canine model2018

    • Author(s)
      山岡 哲二
    • Organizer
      2018 TERMS WC
    • Related Report
      2018 Annual Research Report
  • [Presentation] オリゴ乳酸-diEG-IKVAV結合体によるポリ乳酸神経誘導管の表面修飾と熱処理効果2018

    • Author(s)
      徐 于懿
    • Organizer
      第17回日本再生医療学会総会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 内皮細胞親和性REDVペプチドによる2017

    • Author(s)
      飯田 啓太
    • Organizer
      第16回日本再生医療学会総会
    • Place of Presentation
      仙台国際センター(宮城県仙台市)
    • Year and Date
      2017-03-07
    • Related Report
      2016 Annual Research Report
  • [Presentation] Development of PLLA guide tube filled with unidirectional fiber to enhance axonal extension2017

    • Author(s)
      Yasuo Akizawa
    • Organizer
      23rd Congress of the European Society of Biomechanic
    • Related Report
      2017 Annual Research Report
  • [Presentation] オリゴ乳酸-ペプチドヘテロ結合体によるポリ乳酸マトリックスの機能化修飾2017

    • Author(s)
      山岡哲二
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 再生人工血管用足場を目指した電解紡糸法による血管内皮細胞誘導型生分解性階層化チューブ構造体の作製2017

    • Author(s)
      住田啓迪
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 疎水性人工タンパク質の混合によるポリ乳酸の細胞機能化2017

    • Author(s)
      柿木佐知朗
    • Organizer
      第66回高分子討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ヘパリンによる表面修飾はα型リン酸三カルシウム多孔質顆粒の初期骨形成能を増強する2017

    • Author(s)
      武田吉裕
    • Organizer
      第39回日本バイオマテリアル学会大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Surface modification of Poly(lactic acid) nerve regeneration tube using oligo(D-lactic acid) bioactive peptide conjugates2017

    • Author(s)
      徐 于懿
    • Organizer
      Tissue Engineering & Regenerative Medicine Annual Conference
    • Related Report
      2017 Annual Research Report
  • [Presentation] オリゴ乳酸-IKVAVペプチド結合体を用いた神経誘導管の高機能化2016

    • Author(s)
      徐 于懿
    • Organizer
      第54回日本人工臓器学会大会
    • Place of Presentation
      米子コンベンションセンター(鳥取県米子市)
    • Year and Date
      2016-11-23
    • Related Report
      2016 Annual Research Report
  • [Presentation] Surface modification of poly(L-lactic acid) nanofiber conduits with oligo(D-lactic acid) bioactive peptide conjugates for nerve regeneration tube2016

    • Author(s)
      徐 于懿
    • Organizer
      the 6th Stanford Bio-X & ADATE Symposium (Stanford,CA,US)
    • Place of Presentation
      Stanford, CA, US
    • Year and Date
      2016-09-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 多孔質スキャホールド内部への組織誘導に及ぼす表面特性の影響2016

    • Author(s)
      山岡哲二
    • Organizer
      第45回医用高分子シンポジウム
    • Place of Presentation
      産業技術総合研究所(東京都江東区)
    • Year and Date
      2016-07-25
    • Related Report
      2016 Annual Research Report
  • [Presentation] オリゴ乳酸-REDVペプチドヘテロ結合体によるポリ乳酸スキャホールドへの特異的細胞接着性の付与2016

    • Author(s)
      飯田 啓太
    • Organizer
      第65回高分子学会年次大会
    • Place of Presentation
      神戸国際会議場(兵庫県神戸市)
    • Year and Date
      2016-05-25
    • Related Report
      2016 Annual Research Report
  • [Book] 細胞・生体分子の固定化と機能発現2018

    • Author(s)
      柿木佐知朗、山岡哲二
    • Total Pages
      10
    • Publisher
      CMC出版
    • ISBN
      9784781313269
    • Related Report
      2017 Annual Research Report
  • [Book] 工業材料 65(7)2017

    • Author(s)
      山岡哲二
    • Total Pages
      6
    • Publisher
      日刊工業新聞
    • ISBN
      4910037730770
    • Related Report
      2017 Annual Research Report
  • [Book] 組織再生用繊維性スキャホールド2016

    • Author(s)
      橋本朋子、山岡哲二
    • Total Pages
      2
    • Publisher
      シーエムシー出版
    • Related Report
      2016 Annual Research Report
  • [Book] Proceeding of the ASME2016 Internatilanal Mechanical Engineering Congress & Exposition2016

    • Author(s)
      Y. Akizawa, Y, Morita, Y. Hsu, T. Yamaoka, E. Nakamachi
    • Total Pages
      6
    • Publisher
      IMECE2016
    • Related Report
      2016 Annual Research Report
  • [Patent(Industrial Property Rights)] 生分解性オリゴマー、親水性セグメント、及び細胞接着性ペプチドから成る化合物及びその利用2017

    • Inventor(s)
      山岡哲二、徐 于懿、岩井敦史、中越琢也
    • Industrial Property Rights Holder
      山岡哲二、徐 于懿、岩井敦史、中越琢也
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 生分解性オリゴマー、親水性セグメント、及び細胞接着性ペプチドから成る化合物2016

    • Inventor(s)
      山岡哲二、徐 于懿、岩井敦史、中越琢也
    • Industrial Property Rights Holder
      国立循環器病研究センター、東洋紡株式会社
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2016-176496
    • Filing Date
      2016-09-09
    • Related Report
      2016 Annual Research Report

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

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