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development of a new treatment for type 2 diabetes mellitus using feline iPS cells

Research Project

Project/Area Number 21K14974
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionOsaka Metropolitan University (2022-2023)
Osaka Prefecture University (2021)

Principal Investigator

Kanegi Ryoji  大阪公立大学, 大学院獣医学研究科, 特任講師 (00827941)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsiPS細胞 / 再生医療 / ネコ / インスリン産生細胞 / 胚体内胚葉 / フィーダーフリー / bFGF / LIF / 培養条件 / 2型糖尿病
Outline of Research at the Start

本研究では
①腫瘍化の危険性の低いネコiPS細胞をより効率的に作製・培養する方法を確立する。作製したネコiPS細胞は遺伝子検査などを行い、iPS細胞としての特性を有するかを明らかにする。
②作製したネコiPS細胞をインスリン産生細胞へ分化誘導を試みる。また、実際に糖に対して反応するかを培養液中で評価する。
③分化誘導して得たインスリン産生細胞を移植する部位の検討、および移植後長期にわたる機能評価を行う。また、実際に糖に対して反応するかを生体中で評価する。

Outline of Final Research Achievements

In this study, induced pluripotent stem cells (iPS cells) were generated from feline somatic cells. In order to minimize the risk of tumorigenesis and cell differentiation inhibition (failure to transform into target cells), which have been pointed out in the past, we improved the method of iPS cell production and the culture medium. As a result, we succeeded in producing feline iPS cells with low risk of tumorigenesis and differentiation inhibition while maintaining the characteristics of iPS cells (i.e., self-proliferative ability for unlimited growth and pluripotency to change into various types of cells).
Furthermore, by changing the culture conditions of the generated feline iPS cells, they succeeded in transforming them into cells (embryonic endoderm cells) with the potential to transform into insulin-producing cells in the future.

Academic Significance and Societal Importance of the Research Achievements

本研究では、研究の先行するヒトやマウスと同様の特性を有するネコiPS細胞の作製に成功した。また、作製方法や培養液に改良を加えることにより、腫瘍化や細胞の分化阻害の危険性のないネコiPS細胞の培養条件を明らかにした。これらは、ヒトやマウスと同様、ネコにおける再生医療の可能性を示した研究成果であると考える。
また、上記研究で作製したネコiPS細胞を使用し、特定の細胞への分化誘導に成功した。今後、さらに分化誘導を重ねることにより、将来的にはインスリン産生細胞を作製し、ネコの糖尿病の根本的治療方法を開発できる可能性がある。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021 Other

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Open Access: 10 results) Presentation (3 results) Remarks (2 results)

  • [Journal Article] A feline spinal dermoid cyst treated with surgical intervention2024

    • Author(s)
      NISHIDA Hidetaka、KAKIMOTO Riku、NOGUCHI Shunsuke、KANEGI Ryoji、SHIMAMURA Shunsuke、TANAKA Toshiyuki、FUMIMOTO Tamiko、NISHIBATA Kento、FUJIWARA Hidemasa、AKIYOSHI Hideo
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 86 Issue: 1 Pages: 116-119

    • DOI

      10.1292/jvms.23-0370

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation, characterization, and differentiation of induced pluripotent stem-like cells in the domestic cat2023

    • Author(s)
      KANEGI Ryoji、HATOYA Shingo、KIMURA Kazuto、YODOE Kyohei、NISHIMURA Toshiya、SUGIURA Kikuya、KAWATE Noritoshi、INABA Toshio
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 6 Pages: 317-327

    • DOI

      10.1262/jrd.2022-038

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In vivo transfection of cytokine genes into tumor cells using a synthetic vehicle promotes antitumor immune responses in a visceral tumor model2023

    • Author(s)
      Watanabe Shunichi、Takagi Ayaka、Yuba Eiji、Kojima Chie、Dei Nanako、Matsumoto Akikazu、Tanikawa Jun、Kawamura Tetsuya、De?Silva Nadeeka H.、Izawa Takeshi、Akazawa Takashi、Kanegi Ryoji、Hatoya Shingo、Inaba Toshio、Sugiura Kikuya
    • Journal Title

      The FASEB Journal

      Volume: 37 Issue: 11

    • DOI

      10.1096/fj.202202036r

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Atypical hypoadrenocorticism with intact zona glomerulosa of the adrenal cortex after long-term observation: a case report of a dog2023

    • Author(s)
      Atypical hypoadrenocorticism with intact zona glomerulosa of the adrenal cortex after long-term observation: a case report of a dog.
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 85 Issue: 1 Pages: 9-13

    • DOI

      10.1292/jvms.22-0322

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mesenteric lymph node abscesses due to Escherichia coli in a cat2022

    • Author(s)
      Kosei Sakai, Ryoji Kanegi, Tomoyo Nabetani, Toshiyuki Tanaka, Shunsuke Shimamura, Terumasa Shimada, Kikuya Sugiura, Shingo Hatoya
    • Journal Title

      Veterinary Medicine and Science

      Volume: 8 Issue: 4 Pages: 1611-1616

    • DOI

      10.1002/vms3.840

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of molecular-targeting helix-loop-helix peptides for inhibition of the interaction between cytotoxic T-lymphocyte-associated protein 4 and B7 in the dog2022

    • Author(s)
      Tharanga Mr Ramanayake Mudiyanselage, Daisuke Fujiwara, Masataka Michigami, Shunichi Watanabe, Zhengmao Ye, Atsuko Ueda, Ryoji Kanegi, Shingo Hatoya, Ikuo Fujii, Kikuya Sugiura
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 84 Issue: 8 Pages: 1101-1107

    • DOI

      10.1292/jvms.21-0318

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spinal epidural empyema concurrent with sequestrum in a cat: a case report2022

    • Author(s)
      Kosuke Kinoshita, Hidetaka Nishida, Ryoji Kanegi, Yuya Nakamoto, Toshiyuki Tanaka, Tamiko Fumimoto, Mitsuru Kuwamura, Yasuo Ogawa, Hideo Akiyoshi
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 84 Issue: 10 Pages: 1368-1372

    • DOI

      10.1292/jvms.22-0264

    • ISSN
      0916-7250, 1347-7439
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Case Report: Detection of Transferrin in a Dog Suspected of Having Cerebrospinal Fluid Rhinorrhea2022

    • Author(s)
      Kinoshita Kosuke、Nishida Hidetaka、Kanegi Ryoji、Nakamoto Yuya、Tanaka Toshiyuki、Shimamura Shunsuke、Kusumoto Kazuhito、Akiyoshi Hideo
    • Journal Title

      Frontiers in Veterinary Science

      Volume: 9 Pages: 845809-845809

    • DOI

      10.3389/fvets.2022.845809

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Potent adjuvant effect elicited for tumor immunotherapy by a liposome conjugated pH-sensitive polymer and dendritic cell-targeting Toll-like-receptor ligand2022

    • Author(s)
      Watanabe Shunichi、Yuba Eiji、Akazawa Takashi、Wijewardana Viskam、Kakihara Yuka、Azuma Ayaka、Hagimori Kenji、Kanegi Ryoji、Hatoya Shingo、Inoue Norimitsu、Inaba Toshio、Sugiura Kikuya
    • Journal Title

      Vaccine

      Volume: 40 Issue: 10 Pages: 1448-1457

    • DOI

      10.1016/j.vaccine.2022.01.048

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effects of the preservation medium and storage duration of domestic cat ovaries on the maturational and developmental competence of oocytes <i>in vitro</i>2022

    • Author(s)
      Takumi Yoshida, Md Emtiaj Alam, Keisuke Hanafusa, Yasunori Tsujimoto, Masaya Tsukamoto, Ryoji Kanegi, Toshio Inaba, Kikuya Sugiura, Shingo Hatoya
    • Journal Title

      Journal of Reproduction and Development

      Volume: 68 Issue: 2 Pages: 160-164

    • DOI

      10.1262/jrd.2021-084

    • NAID

      130008139942

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Retrospective evaluation of nimustine use in the treatment of feline lymphoma2021

    • Author(s)
      Sakai K, Hatoya S, Furuya M, Nabetani T, Kanegi R, Shimamura S, Tani H, Shimada T
    • Journal Title

      Veterinary Medicine and Science

      Volume: 8 Issue: 1 Pages: 3-8

    • DOI

      10.1002/vms3.652

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 食欲不振および疼痛を認めた犬の特発性肥厚性硬膜炎の1 例2023

    • Author(s)
      金城綾二、松尾芽衣、田中利幸 島村俊介、鳩谷晋吾、高橋克典、内田和幸、チェンバーズジェームズ、西田英高
    • Organizer
      第48 回獣医神経病学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] グルテン除去食の給餌によって改善を認めた犬の発作性ジスキネジアの1 例2023

    • Author(s)
      松尾芽衣、金城綾二、王寺隆、田中利幸、小泉慶、古家優、西田英高
    • Organizer
      第48 回獣医神経病学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] サイトカイン遺伝子の腫瘍細胞への導入による微小環境内免疫状態の改変がもたらす治療 効果の検討2021

    • Author(s)
      渡邊俊一、弓場英司、高木彩夏、鳩谷晋吾、金城綾二、稲葉俊夫、杉浦喜久弥
    • Organizer
      第164回日本獣医学会学術集会
    • Related Report
      2021 Research-status Report
  • [Remarks] 細胞病態学教室ホームページ

    • URL

      http://www.vet.osakafu-u.ac.jp/cell/

    • Related Report
      2021 Research-status Report
  • [Remarks] Laboratory of Cell Pathology

    • URL

      http://www.vet.osakafu-u.ac.jp/english/cell/

    • Related Report
      2021 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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