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Exosomal secretion of hypoxia-adapted multiple myeloma cells

Research Project

Project/Area Number 20K17388
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionKyoto Pharmaceutical University

Principal Investigator

Toda Yuki  京都薬科大学, 薬学部, 助教 (40779724)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords低酸素 / Exosomes / HK2 / ミトコンドリア / 分泌制御機構 / Exosome分泌 / 分泌制御シグナル / HK2発現制御 / 細胞生存 / 細胞内シグナル伝達 / exosome分泌 / tet-on / ALIX / ミトコンドリア分画
Outline of Research at the Start

多発性骨髄腫(MM)において、既存治療に抵抗性を示すがん幹細胞(MM幹細胞)は骨髄の低酸素環境に存在している。MM幹細胞は多様な生体分子(miRNAなど)を含む小胞(exosomes)を過剰に分泌している。本研究ではexosome分泌に着目し、低酸素環境に潜むMM幹細胞の生存との関わりを明らかにする。Exosomeの分泌がどのように制御され、MM幹細胞の生存に関わるのか解明されれば、それを糸口にした新たな治療法を提案できる。MM幹細胞の弱点を突いた治療は、MMを治癒の望める疾患へと変える可能性を有している。以上より本研究は、MM患者に大きな福音をもたらしうる、社会的意義の高い基礎研究である。

Outline of Final Research Achievements

Ineffectiveness of traditional therapies against cancer stem cells (CSCs) is reportedly associated with the poor outcome for multiple myeloma (MM) patients. Myeloma stem cells reside in hypoxic bone marrow niche where maintains their stem cell property. We previously established MM cells experienced long-term exposure of hypoxia and characterized their enhanced stem cell characteristics. The hypoxia-adapted (HA) cells require exosomal secretion for their survival in hypoxic condition. In this study, we identified Akt/AS160 signal as a regulatory signal for the exosome secretion and demonstrated mitochondrial localization of hexokinase 2 with anti-apoptotic function which was possibly involved in survival of HA-MM cells. The study provides insights in design novel therapy for prevention of recurrence resulting from myeloma stem cells.

Academic Significance and Societal Importance of the Research Achievements

多発性骨髄腫(MM)の再発に関与する幹細胞性の高い集団(骨髄腫幹細胞)は、骨髄低酸素環境に存在すると言われている。代表者は、上記骨髄腫幹細胞を低酸素環境での長期培養によって再現し、その生存に細胞外小胞(exosomes)の分泌が関与することを見出した。さらに本課題ではその分泌制御に関わるシグナルおよび生存メカニズムの一部を明らかにした。本知見を基盤とする、骨髄腫幹細胞を標的とした再発を防ぐ治療法の開発が期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (31 results)

All 2023 2022 2021 2020 Other

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 4 results) Presentation (19 results) (of which Int'l Joint Research: 5 results) Remarks (2 results)

  • [Journal Article] Hypoxia-adapted Multiple Myeloma Stem Cells Resist γδ-T-Cell-mediated Killing by Modulating the Mevalonate Pathway2023

    • Author(s)
      Yusuke Sano、Naoko Kuwabara、Saori Nakagawa、Yuki Toda、Shigekuni Hosogi、Shinji Sato、Eishi Ashihara
    • Journal Title

      Anticancer Research

      Volume: 43 Issue: 2 Pages: 547-555

    • DOI

      10.21873/anticanres.16191

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 7,8-Dihydroxy-3-(4′-hydroxyphenyl)coumarin inhibits invasion and migration of osteosarcoma cells2023

    • Author(s)
      Sugiyama Yuki、Nakamura Seikou、Tokuda Yuichi、Nakano Masakazu、Hattori Yasunao、Nishiguchi Hiroki、Toda Yuki、Hosogi Shigekuni、Yamashita Masayuki、Tashiro Kei、Ashihara Eishi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 638 Pages: 200-209

    • DOI

      10.1016/j.bbrc.2022.11.056

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CN470 is a BET/CBP/p300 multi-bromodomain inhibitor and has an anti-tumor activity against MLL-rearranged acute lymphoblastic leukemia2022

    • Author(s)
      Imayoshi Natsuki、Yoshioka Makoto、Tanaka Kuniaki、Yang Shyh-Ming、Akahane Koshi、Toda Yuki、Hosogi Shigekuni、Inukai Takeshi、Okada Seiji、Maloney David J.、Nakahata Tatsutoshi、Takita Junko、Kato Itaru、Ashihara Eishi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 590 Pages: 49-54

    • DOI

      10.1016/j.bbrc.2021.12.078

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Successful Incorporation of Exosome-Capturing Antibody-siRNA Complexes into Multiple Myeloma Cells and Suppression of Targeted mRNA Transcripts2022

    • Author(s)
      Soma Emi、Yamayoshi Asako、Toda Yuki、Mishima Yuji、Hosogi Shigekuni、Ashihara Eishi
    • Journal Title

      Cancers

      Volume: 14 Issue: 3 Pages: 566-566

    • DOI

      10.3390/cancers14030566

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The CDK4/6-UCHL5-BRD4 axis confers resistance to BET inhibitors in MLL-rearranged leukemia cells by suppressing BRD4 protein degradation2022

    • Author(s)
      Amari Keigo、Sasagawa Satoru、Imayoshi Natsuki、Toda Yuki、Hosogi Shigekuni、Imamura Toshihiko、Ashihara Eishi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 588 Pages: 147-153

    • DOI

      10.1016/j.bbrc.2021.12.063

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Expression level of BTN3A1 on the surface of CD14+ monocytes is a potential predictor of γδ T cell expansion efficiency2022

    • Author(s)
      Tomogane Mako、Omura Maho、Sano Yusuke、Shimizu Daiki、Toda Yuki、Hosogi Shigekuni、Kimura Shinya、Ashihara Eishi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 588 Pages: 47-54

    • DOI

      10.1016/j.bbrc.2021.12.060

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Human Vγ9Vδ2?T cells exert anti-tumor activity independently of PD-L1 expression in tumor cells2021

    • Author(s)
      Tomogane Mako、Sano Yusuke、Shimizu Daiki、Shimizu Teruki、Miyashita Masatsugu、Toda Yuki、Hosogi Shigekuni、Tanaka Yoshimasa、Kimura Shinya、Ashihara Eishi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 573 Pages: 132-139

    • DOI

      10.1016/j.bbrc.2021.08.005

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] A novel dipeptide type inhibitor of the Wnt/b-catenin pathway suppresses proliferation of acute myelogenous leukemia cells.2021

    • Author(s)
      Ryosuke Wakabayashi, Yasunao Hattori, Shigekuni Hosogi, Yuki Toda, Kazuyuki Takata, Eishi Ashihara.
    • Journal Title

      Biochem. Biophys. Res. Commun.

      Volume: 535 Pages: 73-79

    • DOI

      10.1016/j.bbrc.2020.12.027

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Factors Associated with Dose Modification of Lenalidomide Plus Dexamethasone Therapy in Multiple Myeloma2020

    • Author(s)
      Yoko Kado, Masayuki Tsujimoto, Shin-ichi Fuchida, Akira Okano, Mayumi Hatsuse, Satoshi Murakami, Hikofumi Sugii, Kumi Ueda, Yuki Toda, Tetsuya Minegaki, Kohshi Nishiguchi, Yuichi Muraki, Chihiro Shimazaki, Eishi Ashihara.
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 43 Issue: 8 Pages: 1253-1258

    • DOI

      10.1248/bpb.b20-00337

    • NAID

      130007883792

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2020-08-01
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Mouse Bone Marrow-derived Microglia-like Cells Secrete Transforming Growth Factor-β1 and Promote Microglial Aβ Phagocytosis and Reduction of Brain Aβ2020

    • Author(s)
      Kuroda E, Nishimura K, Kawanishi S, Sueyoshi M, Ueno F, Toji Y, Abo N, Konishi T, Harada K, Satake S, Shima C, Toda Y, Kitamura Y, Shimohama S, Ashihara E, Takata K.
    • Journal Title

      Neuroscience

      Volume: 438 Pages: 217-228

    • DOI

      10.1016/j.neuroscience.2020.05.004

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 転移予定臓器における組織酸性化の転移巣形成への寄与2023

    • Author(s)
      小西和也, 松井透磨, 戸田侑紀, 細木誠之, 芦原英司
    • Organizer
      日本薬学会 第143年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] pH-low insertion peptide detects lactic acidosis contributing metastatic niche formation in lungs2022

    • Author(s)
      Toma Matsui, Yuki Toda, Anna Mosnikova, Oleg A. Andreev, Shigekuni Hosogi, Yana K. Reshetnyak, Eishi Ashihara
    • Organizer
      American Association for Cancer Research Special Conference: CANCER METASTASIS
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] pH-low insertion peptide accumulated in lung metastatic niche with lactic acidosis2022

    • Author(s)
      Toma Matsui, Yuki Toda, Shigekuni Hosogi, Eishi Ashihara
    • Organizer
      第81回日本癌学会学術総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] pH-low insertion peptideで捉える転移予定臓器における組織pHの変化2022

    • Author(s)
      戸田侑紀, 松井透磨, 細木誠之, 芦原英司
    • Organizer
      第26回日本がん分子標的治療学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] pH-low insertion peptideを用いた転移予定臓器における組織酸性化の検出2022

    • Author(s)
      松井透磨、戸田侑紀、中井亮太、横川碧、板垣里奈、細木誠之、芦原英司
    • Organizer
      日本薬学会 第142年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Detection of acidic environment in metastatic niche by pH-low insertion peptide2022

    • Author(s)
      Toma Matsui、Yuki Toda、Eiko Sawada、Aoi Yokogawa、Ryota Nakai、Rina Itagaki、Anna Mosnikova、Oleg A. Andreev、Shigekuni Hosogi、Yana K. Reshetnyak、Eishi Ashihara
    • Organizer
      The 5th International Cancer Research Symposium - a Training for Oncology Professionals
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] UCHL5 overexpression confers resistance to BETi in MLL-r leukemia cells by suppressing degradation of BRD4 protein2021

    • Author(s)
      Keigo Amari、Yuki Toda、Shigekuni Hosogi、Toshihiko Imamura、Eishi Ashihara
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] A novel coumarin-based compound inhibits invasion and migration of osteosarcoma cells2021

    • Author(s)
      Yuki Sugiyama、Seikou Nakamura、Kimika Yamaguchi、Yasunao Hattori、Yuki Toda、Shigekuni Hosogi、Eishi Ashihara
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] A novel dipeptide type Wnt/β-catenin pathway inhibitor suppresses proliferation of acute myelogenous leukemia cells2021

    • Author(s)
      Yuki Hadate、Ryosuke Wakabayashi、Yasunao Hattori、Shigekuni Hosogi、Yuki Toda、Kazuyuki Takata、Eishi Ashihara
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Acidic microenvironment increased the anti-tumor effect of γδT cell on A549 lung cancer cells2021

    • Author(s)
      Shura Yarimizu、Shigekuni Hosogi、Mina Suzuki、Nobuhisa Tohdo、Daiki Shimizu、Yusuke Sano、Natsuki Imayoshi、Keigo Amari、Makou Tomogane、Yuki Toda、Eishi Ashihara
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Application of BET/CBP/p300 multi-bromodomain inhibitors as a novel therapeutic strategy for MLL-rearranged acute lymphoblastic leukemia2020

    • Author(s)
      Natsuki Imayoshi, Makoto Yoshioka, Shyh-Ming Yang, Koshi Akahane, Yuki Toda, Shigekuni Hosogi, Takeshi Inukai, Seiji Okada, David J. Maloney, Jeffrey W. Strovel, Eishi Ashihara.
    • Organizer
      American Association for Cancer Research Annual Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Cdk4/6 inhibitor Abemaciclib overcomes resistance to BET inhibitor in leukemic cells with MLL-AF5q31 fusion gene2020

    • Author(s)
      Keigo Amari, Yuki Toda, Shigekuni Hosogi, Toshihiko Imamura, Eishi Ashihara.
    • Organizer
      American Association for Cancer Research Annual Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 急性骨髄性白血病に対する新規ペプチド型Wnt/β-catenin阻害剤の効果2020

    • Author(s)
      若林亮介, 服部恭尚, 戸田侑紀, 細木誠之, 芦原英司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] γδT細胞の体外増幅培養における予測可能なバイオマーカーの探索2020

    • Author(s)
      友金眞光, 宮下雅亜, 佐野友亮, 清水大器, 戸田侑紀, 細木誠之, 芦原英司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 低酸素環境に適応した多発性骨髄腫に対するγδT細胞の抗腫瘍効果2020

    • Author(s)
      佐野友亮, 友金眞光, 清水大器, 宮下雅亜, 戸田侑紀, 細木誠之, 芦原英司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] 骨髄系細胞が動員された前転移ニッチにおける乳酸アシドーシス2020

    • Author(s)
      松井透磨, 戸田侑紀, 細木誠之, 芦原英司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Presentation] Novel BET/CBP/p300 multi-bromodomain inhibitors as a strategy for MLL-rearranged ALL2020

    • Author(s)
      Natsuki Imayoshi, Makoto Yoshioka, Kuniaki Tanaka, Shyh-Ming Yang, Koshi Akahane, Yuki Toda, Shigekuni Hosogi, Takeshi Inukai, Seiji Okada, David J. Maloney, Itaru Kato, Eishi Ashihara.
    • Organizer
      第82回日本血液学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Cdk4/6i Abemaciclib overcomes resistance to BETi in leukemic cells with MLL-AF5q31 fusion gene2020

    • Author(s)
      Keigo Amari, Yuki Toda, Shigekuni Hosogi, Toshihiko Imamura, Eishi Ashihara.
    • Organizer
      第82回日本血液学会学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] MLL-AF5q31 cells acquire BET inhibitor resistance by Brd4-regulated molecules upregulation2020

    • Author(s)
      Keigo Amari, Yuki Toda, Shigekuni Hosogi, Toshihiko Imamura, Eishi Ashihara.
    • Organizer
      Global Academic Programs 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 京都薬科大学病態生理学分野

    • URL

      https://labo.kyoto-phu.ac.jp/seiri/seiri-j.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 京都薬科大学病態生理学分野ホームページ

    • URL

      https://labo.kyoto-phu.ac.jp/seiri/pg402.html

    • Related Report
      2021 Research-status Report 2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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