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Challenge for elucidation of cross talk between cellular senescence and cell competition

Research Project

Project/Area Number 19K22571
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 50:Oncology and related fields
Research InstitutionJapanese Foundation for Cancer Research

Principal Investigator

Takahashi Akiko  公益財団法人がん研究会, がん研究所 細胞老化プロジェクト, プロジェクトリーダー (60380052)

Project Period (FY) 2019-06-28 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords細胞老化 / 細胞競合 / がん抑制 / SASP
Outline of Research at the Start

細胞老化は正常な細胞が持つ重要ながん抑制機構として働く一方で、様々な炎症性蛋白質を分泌するSASPをおこすことで、がんを誘発する副作用があることが明らかになってきた。近年、正常上皮細胞に発がんストレスが加わると、まず細胞競合によって異常細胞が上皮層から選択的に排除される新しいがん抑制機構の存在が示されつつある。これら二つのがん抑制機構(細胞老化と細胞競合)は生体内の同一組織で同時におこっている可能性が高いが、細胞競合の詳細な制御機構はこれまで殆ど知られていない。本研究は、老化細胞分泌因子(SASP因子)による細胞競合の制御という未知の生命現象の解明に挑む研究課題である。

Outline of Final Research Achievements

Both cellular senescence and cell competition caused by oncogenic stimuli induce apical elimination or irreversible cell cycle arrest of oncogenic cells, thereby acting as an important tumor suppression mechanism in the earliest stages of cancer development. In contrast, senescent cells accumulated during the aging process in vivo secrete many inflammatory proteins. This phenomenon, termed the senescence-associated secretory phenotype (SASP), contributes to age-related cancers. Although both cellular senescence and cell competition are induced by oncogenic stressors, the relationship between them remains unclear. Here we show that one SASP factor inhibits apical extrusion of mutated cells. In addition, cellular senescence results in survival of mutated cells, whereas the inhibitor clearly causes the elimination of those cells from mouse livers. Our data provides the first evidence that cellular senescence inhibits cell competition-induced elimination of oncogenic cells.

Academic Significance and Societal Importance of the Research Achievements

老化細胞が分泌するSASP因子による、もう一つのがん抑制機構である細胞競合の抑制という生命現象は、現在までに全く報告のない新規のがん制御機構であり、本研究成果は腫瘍生物学における新しいコンセプトの創成となった。
さらに、将来的に細胞競合や細胞老化といったがん抑制機構を標的とした治療戦略を立てる上で重要な知見を提供し、今後SASPを制御することで細胞競合をも制御できる可能性に繋がり、臨床的な応用研究に発展する可能性が高い。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (17 results)

All 2021 2020 2019 Other

All Journal Article (8 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results) Remarks (2 results)

  • [Journal Article] Senescence-associated extracellular vesicle (SA-EV) release plays a role in senescence-associated secretory phenotype (SASP) in age-associated diseases.2021

    • Author(s)
      Tanaka, Y. and Takahashi, A.
    • Journal Title

      J. Biochem.

      Volume: 169(2) Issue: 2 Pages: 147-153

    • DOI

      10.1093/jb/mvaa109

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A BET family protein degrader provokes senolysis by targeting NHEJ and autophagy in senescent cells.2020

    • Author(s)
      Wakita M, Takahashi A, Sano O, Loo TM, Imai Y, Narukawa M, Iwata H, Matsudaira T, Kawamoto S, Ohtani N, Yoshimori T, Hara E.
    • Journal Title

      Nat Commun

      Volume: 1935 Issue: 1 Pages: 1935-1935

    • DOI

      10.1038/s41467-020-15719-6

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] DNA Damage Regulates Senescence-Associated Extracellular Vesicle Release via the Ceramide Pathway to Prevent Excessive Inflammatory Responses2020

    • Author(s)
      Hitomi Kazuhiro、Okada Ryo、Loo Tze Mun、Miyata Kenichi、Nakamura Asako J.、Takahashi Akiko
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 21 Issue: 10 Pages: 3720-3720

    • DOI

      10.3390/ijms21103720

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Biology of extracellular vesicles secreted from senescent cells as senescence‐associated secretory phenotype factors2020

    • Author(s)
      Misawa Tomoka、Tanaka Yoko、Okada Ryo、Takahashi Akiko
    • Journal Title

      Geriatrics & Gerontology International

      Volume: 20 Issue: 6 Pages: 539-546

    • DOI

      10.1111/ggi.13928

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cellular senescence and senescence‐associated secretory phenotype via the cGAS‐STING signaling pathway in cancer2019

    • Author(s)
      Loo Tze Mun、Miyata Kenichi、Tanaka Yoko、Takahashi Akiko
    • Journal Title

      Cancer Science

      Volume: 111 Issue: 2 Pages: 304-311

    • DOI

      10.1111/cas.14266

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SASP誘導の分子機構とその役割2019

    • Author(s)
      高橋暁子、原 英二
    • Journal Title

      実験医学

      Volume: 37 Pages: 1735-1739

    • Related Report
      2019 Research-status Report
  • [Journal Article] 老化とがんにおけるSASPの役割とメカニズム2019

    • Author(s)
      宮田憲一、高橋暁子
    • Journal Title

      臨床・免疫・アレルギー科

      Volume: 72 Pages: 214-219

    • Related Report
      2019 Research-status Report
  • [Journal Article] 細胞老化とエクソソーム2019

    • Author(s)
      人見一寛、高橋暁子
    • Journal Title

      医学のあゆみ

      Volume: 272 Pages: 303-307

    • Related Report
      2019 Research-status Report
  • [Presentation] The biological function of SASP factors in cancer2019

    • Author(s)
      Akiko Takahashi
    • Organizer
      Korean Society for Biochemistry and Molecular Biology International Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 老化細胞分泌因子(SASP因子)の生体における機能解析2019

    • Author(s)
      高橋 暁子
    • Organizer
      第19回日本抗加齢医学会総会 シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] 老化細胞が分泌する細胞外微粒子の解析2019

    • Author(s)
      高橋 暁子
    • Organizer
      第37回物性物理化学研究会 バイオナノトランスポーター研究の最前線
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 細胞老化でおこる染色体構造の変化2019

    • Author(s)
      高橋 暁子
    • Organizer
      大阪大学蛋白研セミナー
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] The roles of Cellular Senescence in the cancer microenvironment2019

    • Author(s)
      Akiko Takahashi
    • Organizer
      Tohoku Forum for Creativity, Thematic Program 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 細胞老化と加齢性疾患の関り2019

    • Author(s)
      高橋 暁子
    • Organizer
      北海道大学部局横断シンポジウム
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] The biology of Cellular Senescence in age-related diseases2019

    • Author(s)
      Akiko Takahashi
    • Organizer
      GIAR Sympodium 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 公益財団法人がん研究会がん研究所細胞老化プロジェクトホームページ

    • URL

      https://www.jfcr.or.jp/laboratory/department/senescence/index.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] 公益財団法人がん研究会がん研究所 細胞老化プロジェクト ホームページ

    • URL

      https://www.jfcr.or.jp/laboratory/department/senescence/www/index.html

    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-07-04   Modified: 2023-03-23  

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