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Characiterization of ATL stem cell candidates in HBZ transgenic mouse model

Research Project

Project/Area Number 16K09833
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hematology
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

Mizukami Takuo  国立感染症研究所, 血液・安全性研究部, 室長 (60415487)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsHTLV-1 / ATL / Tax / HBZ / モデルマウス / c-kit/SCF / 癌幹細胞 / 微小環境 (ニッチ) / 成人T細胞白血病 (ATL) / 微小環境 (ニッチ ) / c-kit/SCFシグナリング / ATL stem cells / ATL癌幹細胞 / 微小環境 / transgenic mouse / ATL stem cell / Cancer stem cell / stem cell niche / 血液学 / がん / 免疫学 / ウイルス / 感染症
Outline of Final Research Achievements

Human T cell leukemia virus-1 (HTLV-1) is a T cell tropic retrovirus that causes Adult T cell leukemia (ATL). ATL has worse prognosis than other T cell malignancies. We hypothesized the existence of chemotherapy resistant cancer stem cell in ATL. In previous studies, we have newly identified ATL stem cells (ATLSCs) candidate in the Tax transgenic (Tg) mouse model (Blood, 2009). In this study, we also found HBZ-Tg derived ATLSCs could not colonize and proliferate in the c-kit ligand, membrane bound SCF mutant mouse (Sl/Sld) and in the presence of SCF neutralizing antibody ACK2. These data clearly suggested that SCF-c-kit signaling is essential to colonize and initiating ATL in the mouse model. We also found CCL3, CCL4, IL-4, IL-9, and IL-10 are highly produced in the ATLSCs microenvironment. These data suggested that these cytokines environment synergistically regulate ATLSC function and leukemic niche.

Academic Significance and Societal Importance of the Research Achievements

本研究課題により,HTLV-1の2つの遺伝子TaxとHBZによって誘導されたATL細胞において,ATL癌幹細胞(ATLSCs)特性をもった細胞が存在していることin vivoで証明した。特に,共通して発現するc-kit/SCFシグナリングを抑制することで,ATLの進展を抑えることを明らかにし,ATLSCsを標的とすることで,新規治療法の開発に応用可能であることが示唆された。また,ATLSCsの維持に関し,特殊なサイトカイン環境が形成されていることを突き止め,このような微小環境を標的とした治療法の開発も可能であることを示した。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (8 results)

All 2018 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (6 results)

  • [Journal Article] HTLV-1感染予防法の開発2017

    • Author(s)
      水上拓郎、野島清子、浜口功
    • Journal Title

      血液内科

      Volume: 74(3) Pages: 356-362

    • Related Report
      2017 Research-status Report
  • [Journal Article] Impact of the SCF signaling pathway on leukemia stem cell-mediated ATL initiation and progression in an HBZ transgenic mouse model.2016

    • Author(s)
      Kuribayashi W, Takizawa K, Sugata K, Kuramitsu M, Momose H, Sasaki E, Hiradate Y, Furuhata K, Asada Y, Iwama A, Matsuoka M, Mizukami T*, Hamaguchi I*.
    • Journal Title

      Oncotarget

      Volume: 7(32) Issue: 32 Pages: 51027-51043

    • DOI

      10.18632/oncotarget.10210

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Characterization of the ATL stem cell (ATLSC) niche and cytokine environment in an ATL mouse model.2018

    • Author(s)
      Takuo Mizukami, Wakako Kuribayashi, Kiyoko Nojima, Yuki Hiradate, Eita Sasaki, Madoka Kuramitsu, Haruka Momose, Kenji Sugata, Atsushi Iwama, Masao Matsuoka, Isao Hamaguchi.
    • Organizer
      第79回 日本血液学会
    • Related Report
      2018 Research-status Report
  • [Presentation] Characterization of the ATL stem cell (ATLSC) niche and cytokine environment in an ATL mouse model.2017

    • Author(s)
      Takuo Mizukami, Wakako Kuribayashi, Kiyoko Nojima, Yuki Hiradate, Eita Sasaki, Madoka Kuramitsu, Haruka Momose, Kenji Sugata, Atsushi Iwama, Masao Matsuoka, Isao Hamaguchi.
    • Organizer
      第79回 日本血液学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 成人T細胞白血病 (ATL) モデルマウスにおけるATL癌幹細胞の発生維持機構におけるc-kit-SCFシグナルの重要性の解明2016

    • Author(s)
      水上拓郎, 栗林和華子, 滝澤和也, 倉光球, 佐々木永太, 平舘裕希, 浅田善久, 岩間厚志, 松岡雄雅, 濵口功.
    • Organizer
      第159回 日本獣医学会
    • Place of Presentation
      日本大学生物資源科学部
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Presentation] HBZ-TgマウスモデルにおけるATL癌幹細胞の発生機序解明を目指した分子基盤の解明とその機能解析2016

    • Author(s)
      栗林和華子, 水上拓郎, 滝澤和也, 倉光球, 浅田善久, 岩間厚志, 松岡雄雅, 濵口功.
    • Organizer
      第3回 日本HTLV-1学会
    • Place of Presentation
      鹿児島県市町村自治会館
    • Year and Date
      2016-08-26
    • Related Report
      2016 Research-status Report
  • [Presentation] The essential role of c-kit-SCF signaling in the leukemic stem cells mediated ATL cell propagation and drug resistance.2016

    • Author(s)
      uribayashi W, Mizukami T, Takizawa K, Sugata K, Kuramitsu M, Nojima K, Momose H, Iwama A, Matsuoka M, Hamaguchi I.
    • Organizer
      The 5th JCA-AACR Special Joint Conference
    • Place of Presentation
      Tokyo Bay Maihama Hotel Club Resort
    • Year and Date
      2016-07-13
    • Related Report
      2016 Research-status Report
  • [Presentation] The c-kit-SCF signaling in the leukemic stem cells development and differentiation in ATL model mice.2016

    • Author(s)
      Kuribayashi W, Mizukami T, Takizawa K, Sugata K, Kuramitsu M, Nojima K, Momose H, Iwama A, Matsuoka M, Hamaguchi I
    • Organizer
      RIKEN IMS Summer Program (RISP) 2016
    • Place of Presentation
      理化学研究所 統合生命医科学研究センター
    • Year and Date
      2016-06-10
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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