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Development of In vivo direct reprogramming

Research Project

Project/Area Number 17K19694
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Research Field Surgery of the organs maintaining homeostasis and related fields
Research InstitutionNagoya City University

Principal Investigator

Oishi Hisashi  名古屋市立大学, 医薬学総合研究院(医学), 教授 (30375513)

Project Period (FY) 2017-06-30 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsインシュリン / 糖尿病 / 再生医療 / リプログラミング / インスリン / ポリダチン / 動物 / 再生医学
Outline of Final Research Achievements

The key pathogenesis of diabetes is that glucose cannot be used efficiently in the body due to the absolute and relative deficiency of insulin. In this study, we focused on hepatocytes as a new cell source for regenerating pancreatic β cells, and developed a method for directly inducing insulin production in vivo. We are able to induce insulin gene expression more strongly by co-expressing the Isl1 gene in addition to the previously clarified Pdx1, NeuroD, and MafA genes. It is also cleared that polydatine, which is a resveratrol glycoside, has an inhibitory effect on β-cell death due to oxidative stress.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は、2つの学術的、社会的意義を有している。1点目は、in vivoでダイレクトにヒト肝臓細胞からβ細胞への転換可能性を示した点である。特に、網羅的遺伝子発現解析からIsl1遺伝子が強力な転換誘導因子として同定できたことは、高い学術的意義を有する。2点目は、レスベラトロール配糖体であるポリダチンが酸化ストレスに伴うβ細胞死に対して、抑制効果を持つことを明らかにした点である。ポリダチンは、単独でβ細胞死を抑制し、糖尿病モデルに対する血糖改善作用を示したが、今後、再生されたβ細胞を保護する可能性を検討することで、将来の再生医療における利用可能性を示した。

Report

(5 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2021 2019 2018 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (1 results) Remarks (1 results)

  • [Int'l Joint Research] Beni-Suef University(エジプト)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] エジンバラ大学(英国)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Polydatin mitigates pancreatic β-cell damage through its antioxidant activity2021

    • Author(s)
      Yousef Ahmed I.、Shawki Hossam H.、El-Shahawy Ahmed A.、El-Twab Sanaa M. Abd、Abdel-Moneim Adel、Oishi Hisashi
    • Journal Title

      Biomedicine & Pharmacotherapy

      Volume: 133 Pages: 111027-111027

    • DOI

      10.1016/j.biopha.2020.111027

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MafB Is Important for Pancreatic β-Cell Maintenance under a MafA-Deficient Condition.2019

    • Author(s)
      Xiafukaiti G, Maimaiti S, Ogata K, Kuno A, Kudo T, Shawki HH, Oishi H, Takahashi S.
    • Journal Title

      Molecular and Cellular Biology

      Volume: 39 Issue: 17

    • DOI

      10.1128/mcb.00080-19

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] MafB Is Critical for Glucagon Production and Secretion in Mouse Pancreatic α Cells In Vivo2018

    • Author(s)
      Katoh Megumi C.、Jung Yunshin、Ugboma Chioma M.、Shimbo Miki、Kuno Akihiro、Basha Walaa A.、Kudo Takashi、Oishi Hisashi、Takahashi Satoru
    • Journal Title

      Molecular and Cellular Biology

      Volume: 38 Issue: 8

    • DOI

      10.1128/mcb.00504-17

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isl1β Overexpression With Key β Cell Transcription Factors Enhances Glucose-Responsive Hepatic Insulin Production and Secretion.2018

    • Author(s)
      Jung Y, Zhou R, Kato T, Usui JK, Muratani M, Oishi H, Heck MMS, Takahashi S.
    • Journal Title

      Endocrinology

      Volume: 59 Pages: 869-882

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ポリダチンは抗酸化作用を介して膵ベータ細胞障害を軽減させる2021

    • Author(s)
      大石 久史、ヨーゼフ アーメッド、ホッサム シャウキ
    • Organizer
      日本実験動物学会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 名古屋市立大学大学院医学研究科病態モデル医学

    • URL

      http://www.med.nagoya-cu.ac.jp/animal.dir/dcem/index4.html

    • Related Report
      2019 Research-status Report 2018 Research-status Report

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Published: 2017-07-21   Modified: 2022-02-22  

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