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Elucidation of anti-leukemic NK cells arising after cord blood transplantation and examination of their ex vivo induction methods

Research Project

Project/Area Number 21K08363
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionYamagata University (2023)
Tohoku University (2021-2022)

Principal Investigator

Yokoyama Hisayuki  山形大学, 医学部, 教授 (10396476)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2023: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords臍帯血移植 / NK細胞 / KIRリガンド不適合 / 急性骨髄性白血病 / 移植後再発 / 骨髄異形成症候群 / KIRリガンド / GVHD予防 / KIR
Outline of Research at the Start

臍帯血移植後の骨髄よりNK細胞を分離し、NK細胞の表面タンパク質発現、遺伝子発現パターン、白血病細胞に対する殺細胞能を評価する。これらのNK細胞機能が、臍帯血移植におけるドナーと患者間のKIRリガンド不適合の有無によって影響を受けるかについて解析を行う。さらに、NK細胞と間葉系幹細胞を臍帯血移植と同様の環境下で共培養し、急性骨髄性白血病に対する殺細胞効果が最も優れるNK細胞の誘導方法を検討する。

Outline of Final Research Achievements

This study demonstrated that the impact of KIR ligand mismatch on cord blood transplantation (CBT) varies according to the GVHD prophylaxis method. Specifically, the beneficial effects on overall survival and relapse rates attributed to KIR2DL1-ligand mismatch were observed exclusively with the use of calcineurin inhibitors and methotrexate for GVHD prophylaxis. This impact was especially significant in CBTs performed for acute myeloid leukemia (AML). Furthermore, gene expression analysis in NK cells post-CBT indicated that the NK cell gene expression in CBT with KIR3DL1 ligand mismatch and cytomegalovirus reactivation were distinct from the other CBT. Additionally, the presence or absence of KIR ligand mismatch in CBT was found to be associated with changes in NK cell gene expression.

Academic Significance and Societal Importance of the Research Achievements

本研究結果は臍帯血移植の治療成績の向上に有用である。また、同種造血幹細胞移植における最大の課題である移植後再発の克服に向けた、NK細胞の利用にも活用できる知見が得られた。さらに、将来的に細胞療法としてNK細胞を活用していくにあたり、効率的なNK細胞の培養、増幅に必要な知見となり得る。今後、NK細胞による養子免疫細胞療法等の開発にも貢献できると考えられる

Report

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

    (7 results)

All 2023 2022 2021

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (4 results) (of which Invited: 2 results)

  • [Journal Article] Role of NK cells in cord blood transplantation and their enhancement by the missing ligand effect of the killer-immunoglobulin like receptor2022

    • Author(s)
      Yokoyama Hisayuki
    • Journal Title

      Frontiers in Genetics

      Volume: 13

    • DOI

      10.3389/fgene.2022.1041468

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improved outcomes of single-unit cord blood transplantation for acute myeloid leukemia by killer immunoglobulin-like receptor 2DL1-ligand mismatch.2022

    • Author(s)
      Yokoyama H, Kanaya M, Iemura T, Hirayama M, Yamasaki S, Kondo T, Uchida N, Takahashi S, Tanaka M, Onizuka M, Ozawa Y, Kozai Y, Eto T, Sugio Y, Hamamura A, Kawakita T, Aotsuka N, Takada S, Wake A, Kimura T, Ichinohe T, Atsuta Y, Yanada M, Morishima S.
    • Journal Title

      Bone Marrow Transplant.

      Volume: 57 Issue: 7 Pages: 1171-1179

    • DOI

      10.1038/s41409-022-01700-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Altered effect of killer immunoglobulin-like receptor-ligand mismatch by graft versus host disease prophylaxis in cord blood transplantation2021

    • Author(s)
      Yokoyama H, Hirayama M, Takahashi Y, Uchida N, Tanaka M, Onizuka M, Ozawa Y, Onai D, Katsuoka Y, Wake A, Sawa M, Kobayashi H, Maruyama Y, Ozeki K, Kimura T, Kanda J, Fukuda T, Atsuta Y, Terakura S, Morishima
    • Journal Title

      Bone Marrow Transplant

      Volume: 56 Issue: 12 Pages: 3059-3067

    • DOI

      10.1038/s41409-021-01469-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] AML with RNUX1::RUNX1T1における血縁者間HLA一致同種移植と非血縁臍帯血移植成績の比較2023

    • Author(s)
      櫻井一貴、横山寿行、小松弘香、鳴海善洋、竹中 健太、渡邉 樹也、中村 嘉詞、橋本 和貴、内堀 雄介、猪倉 恭子、市川 聡、小野寺 晃一、福原 規子、大西 康、齋藤 慧、八田 俊介、勝岡 優奈、斎藤 陽、鎌田 真弓、原崎 頼子、遠宮 靖雄、和泉 透、佐々木 治、張替 秀郎
    • Organizer
      第85回日本血液学会学術集会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 大規模レジストリーデータ解析から示唆される同種造血幹細胞移植における NK 細胞の 役割2023

    • Author(s)
      横山寿行
    • Organizer
      第45回日本造血細胞移植学会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] CMV 感染が移植成績に与える影響 -CMV と再発2022

    • Author(s)
      横山寿行
    • Organizer
      第44回日本造血細胞移植学会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 臍帯血移植における KIR リガンド不適合が GVHD 発症と NK 細胞遺伝子発現プ ロファイルに及ぼす影響2021

    • Author(s)
      横山寿行
    • Organizer
      第83回日本血液学会学術集会
    • Related Report
      2021 Research-status Report

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

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