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Development of a single-session replacement therapy by the transplantation of personalized functional protein-producing intestinal organoids

Research Project

Project/Area Number 22K19519
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 53:Organ-based internal medicine and related fields
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Okamoto Ryuichi  東京医科歯科大学, 大学院医歯学総合研究科, 教授 (50451935)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Keywords機能性神経内分泌腫瘍 / オルガノイド / 機能性分泌蛋白 / 神経内分泌腫瘍 / 機能性蛋白 / 分泌蛋白 / 補充療法
Outline of Research at the Start

研究代表者らが有するオルガノイドの樹立・解析・移植技術を利用したパーソナル化・機能性蛋白産生オルガノイドの作成・移植による疾患治療の基盤確率を本研究の目的とする。このため、機能性神経内分泌腫瘍(f-NET)由来オルガノイドをモデルとした機能性蛋白産生オルガノイド(Pro-f-オルガノイド)の設計・デザイン、同オルガノイド移植による疾患表現型の検証、同オルガノイドのパーソナル化技術開発及び前臨床POCの取得を実施する。これにより全身を循環する機能性蛋白の欠損・破綻に対し、単回の細胞移植を介して適切な制御・治療を実現する単回完結型補充療法を実現するための技術基盤の確立が期待できる。

Outline of Final Research Achievements

Through our series of study, it was confirmed that organoids derived from functional neuroendocrine tumors can be established from multiple different cases using established methods. Additionally, the cultivation progress and proliferation efficiency after establishment showed varying patterns depending on individual cases, suggesting a reflection of the gene expression patterns in the original tissues. Moreover, based on the gene expression patterns obtained from analyses using organoids derived from functional neuroendocrine tumors, candidate factors that regulate the expression of specific secreted proteins were identified. Comparative verification was also conducted regarding the appropriate models for transplanting these organoids, and conditions under which engraftment can be achieved with a certain efficiency were confirmed.

Academic Significance and Societal Importance of the Research Achievements

特定の分泌蛋白について恒常的な発現制御機能を欠くとした機能性神経内分泌腫瘍について、同腫瘍由来のオルガノイドを樹立・解析するための手法を確立した。また複数症例の機能性神経内分泌腫瘍由来オルガノイドを比較検討することにより、機能性分泌蛋白に関する異なる制御機構を反映した遺伝子発現パターンに関する網羅的データの取得に成功し、これに基づき発現制御因子群を抽出する基盤を確立した。

Report

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

    (8 results)

All 2024 2023 2022

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Protocol to generate large human intestinal organoids using a rotating bioreactor2023

    • Author(s)
      Takahashi Junichi、Sugihara Hady Yuki、Kato Shu、Nagata Sayaka、Okamoto Ryuichi、Mizutani Tomohiro
    • Journal Title

      STAR Protocols

      Volume: 4 Issue: 3 Pages: 102374-102374

    • DOI

      10.1016/j.xpro.2023.102374

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Organoids transplantation as a new modality to design epithelial signature to create a membrane-protective sulfomucin-enriched segment2023

    • Author(s)
      Watanabe Satoshi、Ogasawara Nobuhiko、Kobayashi Sakurako、Kirino Sakura、Inoue Masami、Hiraguri Yui、Nagata Sayaka、Shimizu Hiromichi、Ito Go、Mizutani Tomohiro、Nemoto Yasuhiro、Tsuchiya Kiichiro、Okamoto Ryuichi、Watanabe Mamoru、Yui Shiro
    • Journal Title

      Journal of Gastroenterology

      Volume: 58 Issue: 4 Pages: 379-393

    • DOI

      10.1007/s00535-023-01959-y

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development and Application of Regenerative Medicine in Inflammatory Bowel Disease2022

    • Author(s)
      Okamoto Ryuichi、Mizutani Tomohiro、Shimizu Hiromichi
    • Journal Title

      Digestion

      Volume: 104 Issue: 1 Pages: 24-29

    • DOI

      10.1159/000527423

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 炎症性腸疾患と再生医療2024

    • Author(s)
      岡本 隆一
    • Organizer
      第23回 日本再生医療学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Clinical Application of Patient-derived Organoids2023

    • Author(s)
      Ryuichi Okamoto
    • Organizer
      World Bio Innovation Forum
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bench-to-bedside research: Patient-derived organoid transplantation for treatment of intractable ulcerative colitis2023

    • Author(s)
      Ryuichi Okamoto
    • Organizer
      SIDDS 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 炎症性腸疾患と腸粘膜再生2023

    • Author(s)
      岡本 隆一
    • Organizer
      第22回日本抗加齢医学会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Recent progress in the treatment of inflammatory bowel disease2023

    • Author(s)
      Ryuichi Okamoto
    • Organizer
      第2回国際臨床免疫シンポジウム
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2022-07-05   Modified: 2025-01-30  

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