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Long term results of tissue-engineered cartilage regenerated by nanoPGA scaffolds seeded with human prominent and microtia chondrocytes

Research Project

Project/Area Number 16K11389
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plastic surgery
Research InstitutionKindai University

Principal Investigator

ISOGAI Noritaka  近畿大学, 医学部, 教授 (90203067)

Co-Investigator(Kenkyū-buntansha) 諸富 公昭 (諸冨 公昭)  近畿大学, 医学部, 准教授 (10388580)
楠原 廣久  近畿大学, 医学部, 講師 (50388550)
朝村 真一  和歌山県立医科大学, 医学部, 教授 (20340804)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords小耳症 / 軟骨再生 / ナノファイバ- / OP-1 / ナノファイバー / 長期成績
Outline of Final Research Achievements

In previous studies on the regeneration of auricle-shaped cartilage by tissue engineering, it remained unresolved whether it is possible to regenerate cartilage reflecting the characteristic texture of the auricle using human auricular chondrocytes and microtia cartilage as a cell source. In this study, we attempted regeneration by combining chondrocytes isolated from the human protruding ear cartilage with almost normal auricular cartilage properties and human microtia cartilage with nanofiber PGA, and compared the long-term results of the regenerated cartilage. Cartilage could be regenerated from human auricular chondrocytes in both groups, and a favorable shape and expression of cartilage-related genes were maintained for a prolonged period after transplantation.

Academic Significance and Societal Importance of the Research Achievements

本研究結果より、ヒトたち耳軟骨および小耳症軟骨細胞から誘導した再生軟骨組織において、軟骨関連遺伝子であるⅡ型コラーゲン、Elastin、およびSox 5のmRNAは移植後の長期間にわたって増加しており、良好な再生組織の誘導と維持が示唆された。
この結果より、ナノファイバーナノファイバーPGAを細胞キャリア(足場材料)として選択する場合、小耳症軟骨細胞を細胞供給源とする軟骨の再生誘導は可能であることが結論づけられた。 今後、播種細胞への栄養拡散や長期形状維持など生分解性高分子に残された課題を解決することにより、組織工学的手法は小耳症の新たな治療法として確立され臨床応用されることが予想される。

Report

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

    (14 results)

All 2018 2017 2016

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (13 results) (of which Int'l Joint Research: 5 results,  Invited: 12 results)

  • [Journal Article] Long-term comparison between human normal conchal and microtia chondrocytes regenerated by tissue engineering on nanofiber PGA scaffolds2017

    • Author(s)
      Hitomi Nakao, Robin Jacqet*, Mark Shasti, Ananth Murthy, William Landis, Noritaka Isogai
    • Journal Title

      Plastic and Reconstructive Surgery

      Volume: 139 Issue: 4 Pages: 911e-921e

    • DOI

      10.1097/prs.0000000000003201

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Tissue engineering application in Plastic Surgery2018

    • Author(s)
      Noritaka Isogai
    • Organizer
      Lecture of University Iowa
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Drug Delivery System using Gelatin hydrogel for various Plastic Surgery Reconstruction2018

    • Author(s)
      Noritaka Isogai
    • Organizer
      5th TERMIS World Congress-2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Tissue engineering Technology of bFGF slow release system for various palstic surgical reconstructions2018

    • Author(s)
      Noritaka Isogai
    • Organizer
      5th TERMIS World Congress-2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 形成外科領域における再生医療の現状2018

    • Author(s)
      磯貝典孝
    • Organizer
      第17回日本再生医療学会シンポジウム(横浜)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Tissue engineering Technology of bFGF Release for various plastic surgical reconstructions2017

    • Author(s)
      磯貝典孝
    • Organizer
      14th US-Japan Symposium on Drung Delivery Systems(Maui, USA)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Tissue engineering Technology of bFGF Release for various plastic surgical reconstructions2017

    • Author(s)
      磯貝典孝
    • Organizer
      TERMIS-AM Annual Conference and Exhibition (Charlotte, USA)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Tissue engineering technology of bFGF release for various plastic surgical reconstructions2017

    • Author(s)
      磯貝典孝
    • Organizer
      PRS KOREA 2017(Soul, Korea)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 形成外科領域における再生医療の最前線2017

    • Author(s)
      磯貝典孝
    • Organizer
      第38回日本炎症・再生医学会シンポジウム(京都)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 「再生医療の未来2017

    • Author(s)
      磯貝典孝
    • Organizer
      第9回日本創傷外科学会 討論会(岐阜)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 3次元硬組織の再生誘導におけるDDSの役割2017

    • Author(s)
      磯貝典孝
    • Organizer
      第33回日本DDS学会 ジョイントシンポジウム(京都)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 臨床家からみた先端医療(再生地用)におけるバイオマテリアルの重要性と期待2016

    • Author(s)
      磯貝典孝
    • Organizer
      日本バイオマテリアル学会2016 日本学術会議シンポジウム
    • Place of Presentation
      「福岡国際会議場(福岡市)」
    • Year and Date
      2016-11-22
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 骨・軟骨組織の再生誘導における基礎研究の現状と臨床応用に向けた課題2016

    • Author(s)
      磯貝典孝
    • Organizer
      第25回日本形成外科学会基礎学術会議
    • Place of Presentation
      「グランフロント大阪(大阪市)」
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 形成外科領域における生体材料の臨床活用2016

    • Author(s)
      磯貝典孝
    • Organizer
      第37回日本炎症・再生医学会
    • Place of Presentation
      「京都勧業会館みやこめっせ(京都)」
    • Year and Date
      2016-06-16
    • Related Report
      2016 Research-status Report
    • Invited

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

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