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Establishment of a cancer stem cell line for radiation biological research

Research Project

Project/Area Number 16K10399
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Radiation science
Research InstitutionIbaraki Prefectural University of Health Science

Principal Investigator

Ohnishi Ken  茨城県立医療大学, 保健医療学部, 教授 (50152195)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsがん幹細胞 / スフェロイド / CD133 / 癌 / 放射線 / 遺伝子
Outline of Final Research Achievements

This study examined cell culturing methods which enable to establish a cancer stem cell line from cancer stem cell-like cells (cancer stem cell marker-positive and undifferentiated cell marker-positive cells) existing in three dimensional cell masses (spheroids) of human glioblastoma cells. The cancer stem cell-like cells could be cultured in spheroids for a long period under a developed cell culturing condition. It was also shown that those cells maintained the phenotype as a cancer stem cell during the long-term culturing. This study could not establish the method which successively culture the cancer stem cell-like cells alone sorted from spheroids for a long period. It was suggested that further studies are needed to examine the cell culturing methods.

Academic Significance and Societal Importance of the Research Achievements

放射線がん治療後のがん幹細胞の生存は、再発、転移に繋がり効率の良い治療にとって大きなマイナス要因と最近考えられている。従って、がん幹細胞に対する放射線殺細胞効果を高める治療法の開発が重要となっている。しかし、がん幹細胞が実際に生体内でどのように発生し、増殖、移動しているのかその挙動についてはほとんど分かっていない。放射線生物学的研究にがん幹細胞が安定的に供給できれば、放射線がん治療の進展に大きく役立つ。本研究は、スフェロイド内に存在するがん幹細胞様細胞をがん幹細胞としての形質を保持させたまま長期培養できる培養法を明らかにした。この研究成果は、放射線生物学的ながん幹細胞研究に寄与できると考える。

Report

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

    (10 results)

All 2019 2018 2017 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (9 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Effectiveness of Hyperthermia on Cancer Stem Cells2017

    • Author(s)
      Ken Ohnishi
    • Journal Title

      Thermal Medicine

      Volume: 33 Issue: 2 Pages: 29-37

    • DOI

      10.3191/thermalmed.33.29

    • NAID

      130006140662

    • ISSN
      1882-2576, 1882-3750
    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] BNCTがん治療効果の生物学的な増強戦略2019

    • Author(s)
      大西健、三澤雅樹
    • Organizer
      SATテクノロジー・ショーケース2019
    • Related Report
      2018 Annual Research Report
  • [Presentation] LAT1発現増強によるBNCTにおける中性子線増感2019

    • Author(s)
      大西健、三澤雅樹、鹿野直人、松本信弘
    • Organizer
      第21回菅原・大西記念癌治療増感シンポジウム in 奈良
    • Related Report
      2018 Annual Research Report
  • [Presentation] がん細胞選択的なアミノ酸トランスポーターLAT1過剰発現誘導の検討2018

    • Author(s)
      大西健、藤田智也、髙﨑真美、松谷早苗、鹿野直人
    • Organizer
      第77回日本癌学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Overexpression of LAT1 by lipofection enhances BPA intracellular incorporation in glioblastoma cells2018

    • Author(s)
      Ken Ohnishi, Sanae Matsutani, Naoto Sikano
    • Organizer
      The 18th International Congress on Neutron Capture Therapy
    • Related Report
      2018 Annual Research Report
  • [Presentation] がん細胞あるいはがん幹細胞様細胞選択的なLAT1過剰発現によるBNCTの検討2018

    • Author(s)
      大西 健
    • Organizer
      茨城大学理学部公開シンポジウム第11回Quantum Medicine研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] マウス中枢神経系細胞を用いた脳腫瘍ライブイメージングモデルの開発2018

    • Author(s)
      大西 健、相良順一、髙崎真美、鹿野直人
    • Organizer
      第20回癌治療増感研究シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Usefulness of spheroid originated CD133-positive cells for cancer stem cell-targeting radiotherapy.2017

    • Author(s)
      Tani T, Sakamoto Y, Fujii Y, Ohnishi K.
    • Organizer
      The 7th International Society of Radiation Neurobiology Conference
    • Place of Presentation
      越後湯沢
    • Year and Date
      2017-02-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] がん幹細胞に対するハイパーサーミアの有効性について2017

    • Author(s)
      大西 健、坂本裕貴
    • Organizer
      第34回日本ハイパーサーミア学会
    • Related Report
      2017 Research-status Report
  • [Presentation] HSP90阻害剤AUYによる神経膠芽腫CD133陽性細胞の温熱/放射線増感作用2016

    • Author(s)
      谷 俊明、福地 命、大西 健
    • Organizer
      日本ハイパーサーミア学会第34回大会
    • Place of Presentation
      つくば
    • Year and Date
      2016-09-02
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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