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Cell therapy without immuno-suppressive medication

Research Project

Project/Area Number 17H01579
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field General surgery
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Iwata Hiroo  国立研究開発法人理化学研究所, 科技ハブ産連本部, グループディレクター (30160120)

Co-Investigator(Kenkyū-buntansha) 安波 洋一  福岡大学, 医学部, 教授 (00166521)
後藤 昌史  東北大学, 医学系研究科, 教授 (50400453)
有馬 祐介  九州大学, 先導物質化学研究所, 准教授 (90402792)
小長谷 周平  京都大学, iPS細胞研究所, 特定研究員 (60770295)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥42,640,000 (Direct Cost: ¥32,800,000、Indirect Cost: ¥9,840,000)
Fiscal Year 2019: ¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2018: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2017: ¥13,780,000 (Direct Cost: ¥10,600,000、Indirect Cost: ¥3,180,000)
Keywords細胞移植 / 糖尿病 / 膵島 / 免疫寛容部位 / 皮下 / 免疫抑制剤 / 拒絶反応 / 免疫寛容 / iPS細胞 / 同種移植 / ランゲルハンス島 / 血糖値 / マウス / ラット / ランゲルハンス氏島 / 移植
Outline of Final Research Achievements

Although transplantation of islets of Langerhans has been accepted as a fundamental treatment for insulin-dependent diabetes mellitus (IDDM), several problems are still remaining in order that it becomes the standard medical treatment of IDDM patients. In this study, using diabetic rat and mouse models, a subcutaneous space surrounded with highly vascularized granulomatous tissue was formed by sponge-bFGF complex implantation. Allogeneic islets transplanted into the space could survive and release insulin for a long period under no immunosuppressive medication. In conjunction with sufficient supply of islets from iPS/ES cells, our method can make islet transplantation the standard medical treatment of IDDM patients.

Academic Significance and Societal Importance of the Research Achievements

現実的で有望な再生医療は、インスリン分泌細胞(膵島)の移植によるインスリン依存性糖尿病の治療である。脳死ドナーから提供された膵島の移植治療法は世界で年間200例程度が行われているものの、①高侵襲な肝内への移植、②副作用の強い免疫抑制剤の使用、③膵島の確保が困難、の3つの課題が残されている。
iPS/ES細胞から膵島を分化誘導できれば、大量の膵島が確保できる。その膵島を皮下に低侵襲で移植でき、さらに免疫抑制剤の投与が必要でなくなれば、患者の負担は皆無になる。インスリン依存性糖尿病の根治治療が可能なり、その社会的意義は極めて高い。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (6 results)

All 2020 2019 2018

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results)

  • [Journal Article] Three-Dimensional Cell Sheet Construction Method with a Polyester Micromesh Sheet.2020

    • Author(s)
      Hori T, Kurosawa O, Ishihara K, Mizuta T, Iwata H
    • Journal Title

      Tissue Eng Part C Methods

      Volume: 26(3) Issue: 3 Pages: 170-179

    • DOI

      10.1089/ten.tec.2019.0330

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Compact fluidic system for functional assessment of pancreatic islets.2019

    • Author(s)
      Hori T, Yamane K, Anazawa T, Kurosawa O, Iwata H.
    • Journal Title

      Biomed Microdevices

      Volume: 21(4) Issue: 4 Pages: 91-100

    • DOI

      10.1007/s10544-019-0443-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of Immunotolerant Space Under the Skin and Transplantation of Islets in the Space2019

    • Author(s)
      Kuwabara Rei、Hamaguchi Masahide、Fukuda Takuya、Sakaguchi Shimon、Iwata Hiroo
    • Journal Title

      Tissue Engineering Part A

      Volume: 25 Issue: 3-4 Pages: 183-192

    • DOI

      10.1089/ten.tea.2018.0109

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chemically defined conditions for long-term maintenance of pancreatic progenitors derived from human induced pluripotent stem cells2019

    • Author(s)
      Konagaya Shuhei、Iwata Hiroo
    • Journal Title

      Scientific Reports

      Volume: 9 Issue: 1 Pages: 640-640

    • DOI

      10.1038/s41598-018-36606-7

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Bioabsorbable device to prepare subcutaneous pockets for islet transplantation2018

    • Author(s)
      Kuwabara Rei、Iwata Hiroo
    • Journal Title

      Journal of Biomedical Materials Research Part B: Applied Biomaterials

      Volume: 107 Issue: 4 Pages: 1107-1112

    • DOI

      10.1002/jbm.b.34203

    • Related Report
      2019 Annual Research Report 2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Long-term Functioning of Allogeneic Islets in Subcutaneous Tissue Pretreated with a Novel Cyclic Peptide without Immunosuppressive Medication2018

    • Author(s)
      Kuwabara Rei、Hamaguchi Masahide、Fukuda Takuya、Sakai Hiroki、Inui Makoto、Sakaguchi Shimon、Iwata Hiroo
    • Journal Title

      Transplantation

      Volume: 102 Issue: 3 Pages: 417-425

    • DOI

      10.1097/tp.0000000000001923

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access

URL: 

Published: 2017-04-28   Modified: 2021-02-19  

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