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Induction of Immune tolerance in the intestine depending on metabolic checkpoint

Research Project

Project/Area Number 21H02904
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionOkayama University

Principal Investigator

Fujiwara Hideaki  岡山大学, 大学病院, 研究准教授 (90743683)

Co-Investigator(Kenkyū-buntansha) 藤井 伸治  岡山大学, 大学病院, 准教授 (60362977)
前田 嘉信  岡山大学, 医歯薬学域, 教授 (60403474)
西森 久和  岡山大学, 医学部, 客員研究員 (70756064)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
KeywordsGVHD / 腸管上皮細胞 / ミトコンドリア / 同種造血細胞移植 / 腸上皮細胞 / ミトコンドリア代謝 / 移植変態宿主病 / 腸内細菌叢 / 代謝チェックポイント / 移植片対宿主病 / 酸素代謝 / 同種造血幹細胞移植
Outline of Research at the Start

高齢者社会に伴い血液悪性疾患の患者は増加していますが、根治療法である同種造血幹細胞移植は、治療に伴う重篤な合併症のため、高齢患者への適応はごく一部に限定されています。特に、移植片対宿主病は致死的な合併症であり移植における最大の障壁です。腸内細菌叢の乱れはGVHDの発症に深くに関わっており、腸管上皮細胞のミトコンドリア異常による腸管内酸素濃度の変化が原因ではないかと推測されます。これら細菌学・免疫学・消化器学・代謝学を統合した、ミトコンドリア異常に基づく新たなGVHDのメカニズムを解明し、従来の予防・治療法とは異なる予防・治療法を開発し安全な移植療法を可能とすることを目的としています。

Outline of Final Research Achievements

We investigated the metabolic dynamics of intestinal epithelial cells in intestinal GVHD, a serious complication after allogeneic hematopoietic cell transplantation (allograft-versus-host disease (GVHD)), which is a disorder of the intestinal microbiota and a serious transplant complication. We found that intestinal epithelial cell injury by allogeneic reactive T cells causes specific mitochondrial complex II injury, which is exacerbated by drug-induced mitochondrial inhibition and genetic inhibition using the VillCre-Sdha flox mouse model of GVHD. The pathophysiology of GVHD is that the loss of homeostasis caused by energy deficiency due to mitochondrial dysfunction is the cause of tissue damage due to GVHD, and that increased oxygen concentration in the intestinal tract due to impaired oxygen utilization is the cause of disruption of the intestinal microbiota.

Academic Significance and Societal Importance of the Research Achievements

同種造血幹細胞移植の腸管組織傷害ではドナーT細胞が腸管上皮細胞を標的とした傷害、特にミトコンドリア傷害が組織恒常性と腸内細菌叢の破綻・細菌由来代謝物の異常によるものであることを明らかにしてきた。これら恒常性破綻・腸内細菌叢の破綻とそれに伴う代謝物異常による組織代謝異常が、ミトコンドリア特異的傷害に由来していることから、免疫細胞を抑制せずにミトコンドリアを標的とした新たな治療開発への展開の可能性を見出し今後の発展が期待される。

Report

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

    (14 results)

All 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results)

  • [Journal Article] Impact of oral microbiota on pathophysiology of GVHD2023

    • Author(s)
      Yamamoto Akira、Kambara Yui、Fujiwara Hideaki
    • Journal Title

      Frontiers in Immunology

      Volume: 14 Pages: 1132983-1132983

    • DOI

      10.3389/fimmu.2023.1132983

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ambient oxygen levels regulate intestinal dysbiosis and GVHD severity after allogeneic stem cell transplantation2023

    • Author(s)
      Seike Keisuke、Kiledal Anders、Fujiwara Hideaki、Henig Israel、Burgos da Silva Marina、van den Brink Marcel R.M.、Hein Robert、Hoostal Matthew、Liu Chen、Oravecz-Wilson Katherine、Lauder Emma、Li Lu、Sun Yaping、Schmidt Thomas M.、Shah Yatrik M.、Jenq Robert R.、Dick Gregory、Reddy Pavan
    • Journal Title

      Immunity

      Volume: 56 Issue: 2 Pages: 353-368.e6

    • DOI

      10.1016/j.immuni.2023.01.007

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prevention of non-infectious pulmonary complications after intra-bone marrow stem cell transplantation in mice2022

    • Author(s)
      4.Yamasuji-Maeda Y, Nishimori H, Seike K, Yamamoto A, Fujiwara H, Kuroi T, Saeki K, Fujinaga H, Okamoto S, Matsuoka K, Fujii N, Tanaka T, Fujii M, Mominoki K, Kanekura T, Maeda Y.
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 9 Pages: 0273749-0273749

    • DOI

      10.1371/journal.pone.0273749

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Recent advances in the understanding of the pathophysiology of graft-versus-host disease2022

    • Author(s)
      Fujiwara Hideaki
    • Journal Title

      Rinsho Ketsueki

      Volume: 63 Issue: 5 Pages: 423-432

    • DOI

      10.11406/rinketsu.63.423

    • ISSN
      0485-1439, 1882-0824
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gut microbiome, metabolites, and tissue metabolism in graft-versus-host disease2022

    • Author(s)
      Fujiwara Hideaki
    • Journal Title

      Rinsho Ketsueki

      Volume: 63 Issue: 4 Pages: 286-293

    • DOI

      10.11406/rinketsu.63.286

    • ISSN
      0485-1439, 1882-0824
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crosstalk Between Intestinal Microbiota Derived Metabolites and Tissues in Allogeneic Hematopoietic Cell Transplantation2021

    • Author(s)
      Fujiwara Hideaki
    • Journal Title

      Frontiers in Immunology

      Volume: 12

    • DOI

      10.3389/fimmu.2021.703298

    • NAID

      120007180271

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mitochondrial complex II in intestinal epithelial cells regulates T cell-mediated immunopathology2021

    • Author(s)
      Fujiwara Hideaki、Seike Keisuke、Reddy Pavan, et al.
    • Journal Title

      Nature Immunology

      Volume: 22 Issue: 11 Pages: 1440-1451

    • DOI

      10.1038/s41590-021-01048-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Allo-HSCTのGVL効果の最大化を目指した組織障害の解明2023

    • Author(s)
      藤原英晃
    • Organizer
      第27回がん・免疫学会総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 歯周病モデルマウスを用いた口腔内細菌叢が慢性GVHDに及ぼす影響とその治療による移植予後改善の検証2023

    • Author(s)
      神原由依
    • Organizer
      第45回日本造血・免疫細胞療法学会総会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 歯周病モデルマウスを用いた口腔内細菌叢が慢性GVHDに及ぼす影響とその治療による移植予後改善の検証2023

    • Author(s)
      神原 由依
    • Organizer
      第45回日本造血・免疫細胞療法学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 腸管GVHDに対する組織抵抗性、回復力、寛容性を考える2022

    • Author(s)
      藤原 英晃
    • Organizer
      第44回日本造血・免疫細胞療法学会総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Influence of Oral Microbiota on Chronic Graft-Versus-Host Disease and Its Role As a Therapeutic Target2022

    • Author(s)
      Kambara Yui
    • Organizer
      64th ASH Annunal Meeting & Exposition
    • Related Report
      2022 Annual Research Report
  • [Presentation] 組織代謝・恒常性と腸管GVHD2021

    • Author(s)
      藤原英晃
    • Organizer
      第43回日本造血・免疫細胞療法学会総会
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Gut microbiome, metabolites and tissue metabolism in GVHD2021

    • Author(s)
      藤原英晃
    • Organizer
      83rd Annual Meeting of Japanese Society of Hematology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited

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

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