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Elucidation of the progression patterns and immune evasion mechanisms of multiple myeloma regulated by the RNA-editing enzyme ADAR

Research Project

Project/Area Number 22K08455
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 InstitutionThe University of Tokushima

Principal Investigator

HARADA Takeshi  徳島大学, 大学院医歯薬学研究部(医学域), 准教授 (10618359)

Project Period (FY) 2022-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2024: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords多発性骨髄腫 / ADAR1 / HDAC1 / ADAR / 二本鎖RNA
Outline of Research at the Start

骨破壊病変を形成しつつ骨髄内で進展する難治性腫瘍の多発性骨髄腫において、骨髄腫の進展で発現亢進する二本鎖RNAに含まれるアデノシンをイノシンへと塩基修飾 (A-to-I RNA編集) するADAR に着目した研究を展開する。腫瘍微小環境も含めた骨髄腫におけるADARの発現亢進の意義を明らかにすると共に、骨髄腫細胞でのエピゲノム制御機構とADARの関係およびADAR高発現による免疫逃避機構の獲得について解明し、エピゲノム治療あるいは免疫療法とADAR阻害による新たな治療の可能性を見出しながら、骨髄腫進展に関わる根幹病態を解き明かす。

Outline of Final Research Achievements

We focused on ADAR1 p150, an interferon (IFN)-inducible isoform of the RNA-editing enzyme ADAR1, and investigated its role in regulating cell death in multiple myeloma (MM) cells. Loss of ADAR1 p150 led to marked induction of ZBP1-mediated apoptosis under IFN stimulation. ADAR1 p150 suppresses ZBP1 activity by binding to left-handed Z-RNA in the cytoplasm. Immunofluorescence and proximity ligation assays confirmed cytoplasmic colocalization of ZBP1, Z-RNA, and ADAR1 p150. Nuclear export of ADAR1 p150 was dependent on XPO1. Treatment with the XPO1 inhibitor selinexor sequestered ADAR1 p150 in the nucleus, thereby enhancing IFN-induced apoptosis. This pathway represents a novel therapeutic target in MM.

Academic Significance and Societal Importance of the Research Achievements

本研究は、RNA編集酵素ADAR1のIFN誘導性アイソフォームp150が、Z-RNAを介してZBP1依存性の細胞死を抑制する分子機構を明らかにし、RNA編集と自然免疫応答の新たな接点を提示した点で学術的に高い意義を有する。また、XPO1阻害薬selinexorとの併用により細胞死誘導が強化されることから、ADAR1 p150-ZBP1軸を標的とした分子標的治療戦略が、1q増幅を有する難治性多発性骨髄腫に対する新規治療法の開発につながる可能性があり、今後の臨床応用や社会実装にも大きな波及効果が期待される。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • Research Products

    (16 results)

All 2025 2024 2023 2022

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Book (4 results)

  • [Journal Article] Myeloma cell growth suppression by osteoblast-derived extracellular vesicles: the creation of a non-permissive niche for myeloma cells by bone-forming osteoblasts2025

    • Author(s)
      Kim SooHa、Teramachi Jumpei、Hiasa Masahiro、Amachi Ryota、Bat-Erdene Ariunzaya、Oda Asuka、Tenshin Hirofumi、Tanaka Mariko、Nakagawa Motosumi、Seki Aiko、Sawa Yoshihiko、Matsuoka Ken-ichi、Tanaka Eiji、Harada Takeshi、Tominaga Tatsuya、Abe Masahiro
    • Journal Title

      Haematologica

      Volume: - Pages: -

    • DOI

      10.3324/haematol.2024.286554

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Elotuzumab‐mediated ADCC with Th1‐like Vγ9Vδ2 T cells to disrupt myeloma-osteoclast interaction2024

    • Author(s)
      Inoue Yusuke、Tenshin Hirofumi、Teramachi Jumpei、Sumitani Ryohei、Oda Asuka、Maeda Yusaku、Oura Masahiro、Sogabe Kimiko、Maruhashi Tomoko、Takahashi Mamiko、Fujii Shiro、Nakamura Shingen、Miki Hirokazu、Hara Tomoyo、Endo Itsuro、Kagawa Kumiko、Ozaki Shuji、Hiasa Masahiro、Harada Takeshi、Abe Masahiro
    • Journal Title

      Cancer Science

      Volume: 116 Pages: 559~563

    • DOI

      10.1111/cas.16401

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ex vivo expansion and activation of Vγ9Vδ2 T cells by CELMoDs in combination with zoledronic acid2024

    • Author(s)
      Inoue Yusuke、Oda Asuka、Maeda Yusaku、Sumitani Ryohei、Oura Masahiro、Sogabe Kimiko、Maruhashi Tomoko、Takahashi Mamiko、Fujii Shiro、Nakamura Shingen、Miki Hirokazu、Hiasa Masahiro、Teramachi Jumpei、Harada Takeshi、Abe Masahiro
    • Journal Title

      International Journal of Hematology

      Volume: - Pages: -

    • DOI

      10.1007/s12185-024-03763-7

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Acute accumulation of PIM2 and NRF2 and recovery of β5 subunit activity mitigate multiple myeloma cell susceptibility to proteasome inhibitors2024

    • Author(s)
      Sogabe K、Nakamura S、Higa Y、Miki H、Oda A、Maruhashi T、Sumitani R、Oura M、Takahashi M、Nakamura M、Maeda Y、Hara T、Yamagami H、Fujii S、Kagawa K、Ozaki S、Kurahashi K、Endo I、Aihara K、Nakaue E、Hiasa M、Teramachi J、Harada T、Abe M
    • Journal Title

      International Journal of Hematology

      Volume: 119 Pages: 303~315

    • DOI

      10.1007/s12185-023-03705-9

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Acute suppression of translation by hyperthermia enhances anti-myeloma activity of carfilzomib2024

    • Author(s)
      Maruhashi Tomoko、Miki Hirokazu、Sogabe Kimiko、Oda Asuka、Sumitani Ryohei、Oura Masahiro、Takahashi Mamiko、Harada Takeshi、Fujii Shiro、Nakamura Shingen、Kurahashi Kiyoe、Endo Itsuro、Abe Masahiro
    • Journal Title

      International Journal of Hematology

      Volume: 119 Pages: 291~302

    • DOI

      10.1007/s12185-023-03706-8

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mechanisms of preferential bone formation in myeloma bone lesions by proteasome inhibitors2023

    • Author(s)
      Nakaue Emiko、Teramachi Jumpei、Tenshin Hirofumi、Hiasa Masahiro、Harada Takeshi、Oda Asuka、Inoue Yusuke、Shimizu So、Higa Yoshiki、Sogabe Kimiko、Oura Masahiro、Hara Tomoyo、Sumitani Ryohei、Maruhashi Tomoko、Yamagami Hiroki、Endo Itsuro、Tanaka Eiji、Abe Masahiro
    • Journal Title

      International Journal of Hematology

      Volume: - Pages: -

    • DOI

      10.1007/s12185-023-03601-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Xanthine Oxidase Inhibitor Febuxostat Suppresses Adipogenesis and Activates Nrf22023

    • Author(s)
      Higa Y, Hiasa M, Tenshin H, Nakaue E, Tanaka M, Kim S, Nakagawa M, Shimizu S, Tanimoto K, Teramachi J, Harada T, Oda A, Oura M, Sogabe K, Hara T, Sumitani R, Maruhashi T, Yamagami H, Endo I, Matsumoto T, Tanaka E, Abe M
    • Journal Title

      Antioxidants

      Volume: 12 Pages: 133~133

    • DOI

      10.3390/antiox12010133

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Myeloma bone disease: pathogenesis and management in the era of new anti-myeloma agents2023

    • Author(s)
      Teramachi Jumpei、Miki Hirokazu、Nakamura Shingen、Hiasa Masahiro、Harada Takeshi、Abe Masahiro
    • Journal Title

      Journal of Bone and Mineral Metabolism

      Volume: - Pages: -

    • DOI

      10.1007/s00774-023-01403-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] Development of ADAR1 and ZBP1-targeting treatment against multiple myeloma with 1q amplification2024

    • Author(s)
      Takeshi Harada, Asuka Oda, Yusuke Inoue, Tomoyo Hara, Ryohei Sumitani, Masahiro Oura, Kimiko Sogabe, Shiro Fujii, Shingen Nakamura, Hirokazu Miki, Kumiko Kagawa, Shuji Ozaki, Masahiro Hiasa, Jumpei Teramachi, Hiroto Ohguchi, Masahiro Abe
    • Organizer
      第86回日本血液学会学術集会
    • Related Report
      2024 Annual Research Report
  • [Presentation] The therapeutic potential targeting ADAR1-dsRNA metabolism in myeloma cells with 1q amplification2022

    • Author(s)
      Harada T, Sumitani R, Oda A, Inoue Y, Oura M, Sogabe K, Maruhashi T, Takahashi M, Fujii S, Nakamura S, Miki H, Kagawa K, Ozaki S, Tenshin H, Hiasa M, Teramachi J, Abe M.
    • Organizer
      The 84th Annual Meeting of the Japanese Society of Hematology
    • Related Report
      2022 Research-status Report
  • [Presentation] ADAR1-dsRNA metabolism in myeloma cells with 1q amplification: a novel therapeutic target2022

    • Author(s)
      Harada T, Oda A, Matsushita Y, Sumitani R, Inoue Y, Hara T, Oura M, Sogabe K, Maruhashi T, Takahashi M, Kurahashi K, Fujii S, Nakamura S, Miki H, Hiasa M, Teramachi J, Katagiri T, Abe M.
    • Organizer
      19th International Myeloma Society Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Therapeutic impact of targeting RNA editing enzyme ADAR1 on myeloma cells with 1q amplification2022

    • Author(s)
      Harada T, Sumitani R, Oda A, Inoue Y, Oura M, Sogabe K, Maruhashi T, Takahashi M, Fujii S, Nakamura S, Miki H, Tenshin H, Hiasa M, Teramachi J, Abe M.
    • Organizer
      The 47th Annual Meeting of the Japanese Society of Myeloma
    • Related Report
      2022 Research-status Report
  • [Book] くすぶり型多発性骨髄腫 別冊 日本臨牀 領域別症候群シリーズ No.30 血液症候群(第3版)V -その他の血液疾患を含めて-2023

    • Author(s)
      原田武志, 安倍正博
    • Total Pages
      5
    • Publisher
      日本臨牀
    • Related Report
      2023 Research-status Report
  • [Book] 骨髄腫細胞におけるエピゲノム異常 多発性骨髄腫 update -診断・治療の最新動向-2023

    • Author(s)
      原田武志
    • Total Pages
      6
    • Publisher
      日本臨牀
    • Related Report
      2023 Research-status Report
  • [Book] I章 近年承認された抗がん薬-13.ダラツムマブ・ボルヒアルロニダーゼ アルファ配合(ダラキューロ). 最新のがん薬物療法 2023-20242023

    • Author(s)
      原田武志, 安倍正博
    • Total Pages
      3
    • Publisher
      南江堂
    • Related Report
      2023 Research-status Report
  • [Book] 骨粗鬆症の類縁疾患の診断と治療. 多発性骨髄腫. 最新の骨粗鬆症学 (第2版) -骨粗鬆症の最新知見-2023

    • Author(s)
      原田武志, 安倍正博
    • Total Pages
      7
    • Publisher
      日本臨牀
    • Related Report
      2023 Research-status Report

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Published: 2022-04-19   Modified: 2026-01-16  

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