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Bile duct reconstruction using scaffold-free tubular constructs created by Bio-3D printer

Research Project

Project/Area Number 19K23609
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0403:Biomedical engineering and related fields
Research InstitutionNagasaki University

Principal Investigator

Hamada Takashi  長崎大学, 医歯薬学総合研究科(医学系), 研究協力員 (80849498)

Project Period (FY) 2019-08-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsバイオ人工胆管 / scaffold-free / 総胆管の置換 / バイオ3Dプリンター / ブタ線維芽細胞 / 人工胆管 / ブタ線維芽細胞培養
Outline of Research at the Start

術後胆管狭窄に対しては、狭窄部へのステント治療が施されるが、ステント閉塞時の緊急交換やそうでない場合でも定期的な交換が必要となり、患者のQOLは著しく低下する。そこで、人工物によって作製された構造体によって狭窄部を置換する方法を用いた胆管再生が近年報告されているが、いまだに臨床応用はされていない。本研究では胆管狭窄の治療に応用可能となる細胞のみで構成されたバイオ人工胆管の創製を目的とした。具体的にはブタの真皮から線維芽細胞を分離・増殖させ、バイオ3Dプリンター技術を利用して線維芽細胞のみから構成された管状の構造体を作製し、ブタ胆管吻合モデルへの移植により胆管狭窄治療が可能であることを実証する。

Outline of Final Research Achievements

Fibroblasts were cultured from domestic pig skin, and a Bio-3D printer was used to create a ductal structure (Bio-artificial bile duct) made entirely of porcine-derived fibroblasts. Then, the common bile duct (the duct of bile flowing from the liver to the digestive tract) of the pig was removed and the Bio-artificial bile duct was implanted. The bile duct was removed and evaluated two weeks after implantation.
As a result, blood tests before and after the transplantation showed no abnormal in liver function. Additionally, cholangiography of the implanted common bile duct showed no evidence of leakage or stenosis. Histopathological examination confirmed the continuity between Bio-artificial bile duct and recipient bile duct. Furthermore, angiogenesis was observed in the tissue surrounding the Bio-artificial bile duct. The Bio-artificial bile duct was successfully created and implanted.

Academic Significance and Societal Importance of the Research Achievements

胆道手術や肝移植における胆管胆管吻合の合併症として胆道狭窄が生じることがある。胆道狭窄を解決するため、生体ポリマーやscaffold(細胞の接着、増殖、分化を制御するための細胞培養基材であり足場、骨格のようなもの)を利用した様々な人工胆管の研究があるが、現在までに臨床応用されているものはない。そこで今回、胆管狭窄部を置換可能なscaffold-freeである細胞のみで構成されたバイオ人工胆管を作製し、ブタへの移植(総胆管の置換)に成功した。今後この研究が進めば、実際の臨床現場での人工胆管移植が実現し、これまで困難であった胆管吻合の合併症の治療の一助になる可能性がある。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2021 2020 2019

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (13 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] Bile duct reconstruction using scaffold-free tubular constructs created by Bio-3D printer.2021

    • Author(s)
      Takashi Hamada, Anna Nakamura, Akihiko Soyama, Yusuke Sakai, Takayuki Miyoshi, Shun Yamaguchi, Masaaki Hidaka, Takanobu Hara, Tota Kugiyama, Mitsuhisa Takatsuki, Akihide Kamiya, Koichi Nakayama, Susumu Eguchi.
    • Journal Title

      Regenerative Therapy

      Volume: 16 Pages: 81-89

    • DOI

      10.1016/j.reth.2021.02.001

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Bile duct reconstruction using scaffold-free tubular constructs created by Bio-3D Printer2021

    • Author(s)
      Takashi Hamada, Anna Nakamura, Akihiko Soyama, Daisuke Miyamoto, Takanobu Hara, Hajime Matsushima, Takayuki Tanaka, Tomohiko Adachi, Masaaki Hidaka, Akihide Kamiya, Koichi Nakayama, and Susumu Eguchi
    • Organizer
      2nd ECTORS Meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bile duct reconstruction using scaffold-free tubular constructs created by Bio-3D printer2021

    • Author(s)
      Takashi Hamada, Akihiko Soyama, Susumu Eguchi
    • Organizer
      The 5th Guangzhou-Nagasaki General Surgery Forum
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bile Duct Reconstruction Using Scaffold-Free Tubular Constructs Created by Bio 3D Printer2021

    • Author(s)
      Takashi Hamada, Akihiko Soyama, Anna Nakamura, Yusuke Sakai, Takayuki Miyoshi, Shun Yamaguchi, Masaaki Hidaka, Takanobu Hara, Tota Kugiyama, Mitsuhisa Takatsuki, Akihide Kamiya, Koichi Nakayama, and Susumu Eguchi
    • Organizer
      第32回日本肝胆膵外科学会学術集会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bile Duct Reconstruction Using Scaffold-Free Tubular Constructs Created by Bio 3D Printer2021

    • Author(s)
      Hamada T, Nakamura A, Soyama A, Sakai Y, Miyoshi T, Yamaguchi S, Hidaka M, Hara T, Kugiyama T, Kamiya A, Nakayama K, Eguchi S
    • Organizer
      日本肝胆膵外科学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] バイオ3Dプリンターを用いた細胞のみの人工胆管の作製と移植効果2020

    • Author(s)
      濵田隆志,原 貴信,釘山統太,川口雄太,吉元智子,田中貴之,大野慎一郎,足立智彦,金高賢悟,江口 晋
    • Organizer
      第19回日本再生医療学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 細胞のみで構成される管腔構造体を用いたバイオ人工胆管の作製2020

    • Author(s)
      濵田隆志,中村アンナ,曽山明彦,堺 裕輔,三好敬之,山口 峻,日高匡章,夏田孔史,釘山統太,田中貴之,大野慎一郎,足立智彦,紙谷聡英,中山功一,江口 晋
    • Organizer
      第120回日本外科学会定期学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Bile duct reconstruction using scaffold-free tubular constructs created by a Bio-3D Printer for transplantation2020

    • Author(s)
      Hamada T, Soyama A, Nakamura A, Sakai Y, Miyoshi T, Yamaguchi S, Hidaka M, Hara T, Kugiyama T, Takatsuki M, Kamiya A, Nakayama K, Eguchi S
    • Organizer
      28th International Congress of The Transplantation Society
    • Related Report
      2020 Research-status Report
  • [Presentation] 細胞のみで構成される管腔構造体を用いたバイオ人工胆管の作製と移植2020

    • Author(s)
      濵田隆志,中村アンナ,曽山明彦,宮本大輔,三好敬之,山口 峻,原 貴信,田中貴之,足立智彦,日高匡章,金高賢悟,紙谷聡英,中山功一,江口 晋
    • Organizer
      第56回日本移植学会総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 細胞のみで構成される管腔構造体を用いたバイオ人工胆管の作製2020

    • Author(s)
      濵田隆志、中村アンナ、曽山明彦、堺 裕輔、三好敬之、山口 峻、原 貴信、松島 肇、田中貴之、足立智彦、日高匡章、伊藤信一郎、金高賢悟、紙谷聡英、中山功一、江口 晋
    • Organizer
      第58回日本人工臓器学会大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Bile Duct Reconstruction Using Scaffold-Free Tubular Constructs of Allogeneic Pig Fibroblast2019

    • Author(s)
      Takashi Hamada, Anna Nakamura, Akihiko Soyama, Yusuke Sakai, Takayuki Miyoshi, Masaaki Hidaka, Koji Natsuda, Mitsuhisa Takatsuki, Akihide Kamiya, Koichi Nakayama, Susumu Eguchi
    • Organizer
      1st ECTORS Meeting
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Bile Duct Reconstruction Using Scaffold-Free Tubular Constructs of Allogeneic Pig Fibroblast2019

    • Author(s)
      Takashi Hamada, Anna Nakamura, Akihiko Soyama, Yusuke Sakai, Takayuki Miyoshi, Masaaki Hidaka, Koji Natsuda, Mitsuhisa Takatsuki, Akihide Kamiya, Koichi Nakayama, Susumu Eguchi
    • Organizer
      ESOT2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 細胞のみで構成される管腔構造体を用いたバイオ人工胆管の作製2019

    • Author(s)
      濵田隆志、中村アンナ、曽山明彦、堺 裕輔、三好敬之、 山口 峻、日高匡章、夏田孔史、釘山統太、大野慎一郎、 足立智彦、高槻光寿、紙谷聡英、中山功一、江口 晋
    • Organizer
      第55回日本移植学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] バイオ3Dプリンターを用いた細胞のみの人工胆管の作製と移植効果2019

    • Author(s)
      濵田隆志、中村アンナ、曽山明彦、堺 裕輔、三好敬之、 山口 峻、日高匡章、夏田孔史、釘山統太、大野慎一郎、 足立智彦、高槻光寿、紙谷聡英、中山功一、江口 晋
    • Organizer
      第7回細胞凝集研究会
    • Related Report
      2019 Research-status Report

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Published: 2019-09-03   Modified: 2023-01-30  

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