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Identification of slow-cycling colon cancer stem cells by single cell gene expression analysis of chemoresistant cells

Research Project

Project/Area Number 20K16230
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49030:Experimental pathology-related
Research InstitutionTeikyo University (2022)
National Cancer Center Japan (2020-2021)

Principal Investigator

Kanda Yusuke  帝京大学, 先端総合研究機構, 研究員 (80803949)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords抗がん剤抵抗性 / 大腸がん / 休止型がん幹細胞 / シングルセル解析
Outline of Research at the Start

白血病等では休止型がん幹細胞が抗がん剤抵抗性の要因であるとされるが、大腸がんにおいても同様の細胞が存在するかは不明である。申請者は、大腸がん患者由来オルガノイドに誘導型H2B-EGFPを導入する事で休止型細胞を同定する実験系を構築した。本系への抗がん剤処理後に残存した休止型細胞は、高い再増殖活性を示したため、休止型がん細胞は抗がん剤抵抗性を持つ事が示唆された。そこで本研究は、シングルセル解析により休止型がん細胞に特徴的な遺伝子群を特定する。次に、抗がん剤抵抗性を与える遺伝子を決定する。以上より、大腸がんの抗がん剤抵抗性を改善させる治療法を開発する上で、休止型がん幹細胞が標的となる事を提示する。

Outline of Final Research Achievements

Recently, a small group of slow-cycling cancer cells has been reported to be resistant to anticancer drugs, but the presence of the population in colon cancer is unknown. To prove the existence of slow-cycling cancer stem cells in colon cancer, we introduced induced H2B-EGFP into organoids established from colon cancer patients. We found that H2B-EGFP-positive cells are chemoresistant and that signature genes of H2B-EGFP-positive cells. In vitro system for gene KO was established. Next, we examined the presence of dormant cancer cells in the xenograft tumor. Colon cancer organoids were transplanted into immunodeficient mice, and H2B-EGFP expression was induced for a certain period, followed by administration of Irinotecan. As a result, we found that H2B-EGFP-positive cancer cells remained.

Academic Significance and Societal Importance of the Research Achievements

休止型がん幹細胞は、抗がん剤抵抗性の要因であると考えられている。本研究で得られた成果は、ヒト大腸がん組織内に休止型がん幹細胞を見出したものであり、今後、休止型大腸がん幹細胞を標的とした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

    (8 results)

All 2022 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (3 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] NF-κB suppression synergizes with E7386, an inhibitor of CBP/β-catenin interaction, to block proliferation of patient-derived colon cancer spheroids2022

    • Author(s)
      Kanda Y, Ohata H, Miyazaki T, Sakai H, Mori Y, Shiokawa D, Yokoi A, Owa T, Ochiai A, *Okamoto K.
    • Journal Title

      Biochem. Biophys. Res. Commun.

      Volume: 586 Pages: 93

    • DOI

      10.1016/j.bbrc.2021.11.063

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Integrative analyses of gene expression and chemosensitivity of patient-derived ovarian cancer spheroids link G6PD-driven redox metabolism to cisplatin chemoresistance2021

    • Author(s)
      Yamawaki K, Mori Y Sakai H, Kanda Y, Shiokawa D, Ueda U, Ishiguro T, Yoshihara K, Nagasaka K, Onda T, Kato T, Kondo T, Enomoto T, *Okamoto K.
    • Journal Title

      Cancer Lett.

      Volume: 521 Pages: 29

    • DOI

      10.1016/j.canlet.2021.08.018

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Slow-cycling cancer stem cells regulate progression and chemoresistance in colon cancer2020

    • Author(s)
      Shiokawa Daisuke、Sakai Hiroaki、Ohata Hirokazu、Miyazaki Toshiaki、Kanda Yusuke、Sekine Shigeki、Narushima Daichi、Hosokawa Masahito、Kato Mamoru、Suzuki Yutaka、Takeyama Haruko、Kambara Hideki、Nakagama Hitoshi、Okamoto Koji
    • Journal Title

      Cancer Research

      Volume: 80 Issue: 20 Pages: 4451

    • DOI

      10.1158/0008-5472.can-20-0378

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Loss of the cystine/glutamate antiporter in melanoma abrogates tumor metastasis and dramatically increases survival rates of mice.2020

    • Author(s)
      Sato M, Onuma K, Domon M, Hasegawa S, Suzuki A, Kusumi R, Hino R, Kakihara N Kanda Y, Osaki M, Hamada J, Bannai S, Feederle R, Buday K, Angeli JPF, Proneth B, Conrad M, Okada F, and Sato H.
    • Journal Title

      Int J Cancer

      Volume: 147 Issue: 11 Pages: 3224-3235

    • DOI

      10.1002/ijc.33262

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] シングルセル解析と空間的トランスクリプトーム解析による卵巣明細 胞腺癌の治療抵抗性ニッチの解明2022

    • Author(s)
      森 裕太郎 、岡本 康司、神田 裕介、石黒 竜也、吉原 弘祐、榎本 隆之 、山脇 芳 、大畑 広和、塩川 大介
    • Organizer
      第81回日本癌学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 抗がん剤抵抗性の休止型大腸がん幹細胞を標的とした光免疫療法の構築2020

    • Author(s)
      神田 裕介、塩川 大介、岡本 康司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 凍結がん検体の1 細胞核解析による卵巣明細胞癌の治療抵抗性細胞ネットワークの同定2020

    • Author(s)
      森 裕太郎、山脇 芳、石黒 竜也、吉原 弘祐、神田 裕介、塩川 大介、榎本 隆之、岡本 康司
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report
  • [Book] Precision Medicine 2021年7月臨時増刊号2021

    • Author(s)
      神田 裕介・塩川 大介・岡本 康司
    • Total Pages
      4
    • Publisher
      北隆館
    • Related Report
      2021 Research-status Report

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

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