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Liver cancer cells manipulate stromal cells involved in fibrosis to promote tumor growth

Research Project

Project/Area Number 19K17489
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionOsaka University

Principal Investigator

Yuta Myojin  大阪大学, 医学部附属病院, 医員 (20838817)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords肝細胞癌 / 肝星細胞 / GDF15 / 単一細胞解析 / 癌微小環境 / シングルセルシークエンス
Outline of Research at the Start

癌細胞は微小環境を自身の増殖に有利に変化させて発育進展する。肝癌では星細胞が存在し、微小環境形成に寄与している可能性がある。最近申請者は、肝癌細胞と共培養した星細胞ではオートファジーが促進することを見出した。このオートファジー亢進を抑制すると、共培養した肝癌細胞の増殖速度が低下するという予備的結果を得ている。そのため、肝星細胞のオートファジーが肝細胞癌に対する新規治療標的となる可能性がある。本申請課題では、肝星細胞におけるオートファジーが癌微小環境を通じて肝癌細胞にあたえる細胞間コミュニケーションの分子基盤を解明し、肝癌細胞増殖にあたえる新規メカニズムの解明を目的として研究を行う。

Outline of Final Research Achievements

Hepatocellular carcinoma (HCC), frequently seen in patients with liver cirrhosis caused by alcohol abuse or chronic viral hepatitis, is the most common form of liver cancer worldwide. As such, it is the third-most common cause of cancer-related death and has a notoriously poor prognosis. At present, surgery is the most effective treatment for HCC, but is only successful in the 10-20% of cases where cancer cells have not spread beyond the liver. We have found that liver cancer cells induce autophagy in hepatic stellate cells, causing them to produce a growth factor called GDF15 that promotes tumor growth. GDF15 was more highly expressed in tumor tissue than normal liver tissue, and patients with higher levels of GDF15 had a poorer prognosis. New therapies targeting GDF15 may help prevent the development and proliferation of hepatocellular carcinoma.

Academic Significance and Societal Importance of the Research Achievements

これまで明らかでなかった肝星細胞と肝がん細胞の相互作用について今後より研究が発展することが望まれます。今後GDF15に対する中和抗体などGDF15を標的とした治療が、肝がん患者さんに対する新たな治療選択肢の1つとして臨床開発されることが期待されます。

Report

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

    (11 results)

All 2021 2020 2019 Other

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 4 results) Remarks (1 results)

  • [Journal Article] Hepatic Stellate Cells in Hepatocellular Carcinoma Promote Tumor Growth Via Growth Differentiation Factor 15 Production2021

    • Author(s)
      Myojin Y, Hikita H, Sugiyama M, Sasaki Y, Fukumoto K, Sakane S, Makino Y, Takemura N, Yamada R, Shigekawa M, Kodama T, Sakamori R, Kobayashi S, Tatsumi T, Suemizu H, Eguchi H, Kokudo N, Mizokami M, Takehara T.
    • Journal Title

      Gastroenterology .

      Volume: 160 Issue: 5 Pages: 1741-1754

    • DOI

      10.1053/j.gastro.2020.12.015

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ST6GAL1 Is a Novel Serum Biomarker for Lenvatinib-Susceptible FGF19-Driven Hepatocellular Carcinoma2020

    • Author(s)
      Myojin Yuta、Kodama Takahiro、Maesaka Kazuki、Motooka Daisuke、Sato Yu、Tanaka Satoshi、Abe Yuichi、Ohkawa Kazuyoshi、Mita Eiji、Hayashi Yoshito、Hikita Hayato、Sakamori Ryotaro、Tatsumi Tomohide、Taguchi Ayumu、Eguchi Hidetoshi、Takehara Tetsuo
    • Journal Title

      Clinical Cancer Research

      Volume: 27 Issue: 4 Pages: 1150-1161

    • DOI

      10.1158/1078-0432.ccr-20-3382

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Hepatic stellate cell autophagy promotes HCC progression via GDF152020

    • Author(s)
      Yuta Myojin, Hayato Hikita, Masaya Sugiyama, Takahiro Kodama, Yuki Makino, Ryoko Yamada, Tasuku Nakabori, Ryotaro Sakamori, Tomohide Tatsumi, Masashi Mizokami, Tetsuo Takehara
    • Organizer
      The Digital International Liver Congress of the European Association for the Study of the Liver
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 肝星細胞のGDF15を介した肝癌増殖促進機構2020

    • Author(s)
      疋田隼人、明神悠太、竹原徹郎
    • Organizer
      第34回肝類洞壁細胞研究会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 肝星細胞がオートファジー依存的に分泌するGDF15は肝細胞癌の進展に寄与する2020

    • Author(s)
      明神悠太、疋田隼人、小玉尚宏、牧野祐紀、阪森亮太郎、巽智秀、溝上雅史、江口英利、竹原徹郎
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 肝癌微小環境における肝星細胞のオートファジーを介したGDF15の意義2020

    • Author(s)
      明神悠太、疋田隼人、竹原徹郎
    • Organizer
      第56回日本肝臓学会総会
    • Related Report
      2020 Annual Research Report 2019 Research-status Report
  • [Presentation] GDF15 secreted by hepatic stellate cells accelerates HCC progression in an autophagy-dependent manner2020

    • Author(s)
      Yuta Myojin, Hayato Hikita , Masaya Sugiyama, Takahiro Kodama, Yuki Makino, Ryoko Yamada, Ryotaro Sakamori, Tomohide Tatsumi, Masashi Mizokami, Tetsuo Takehara
    • Organizer
      The Liver Meeting Digital Experience
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hepatic stellate cell autophagy promotes HCC progression via GDF152020

    • Author(s)
      Yuta Myojin, Hayato Hikita, Masaya Sugiyama, Takahiro Kodama, Yuki Makino, Ryoko Yamada, Tasuku Nakabori, Ryotaro Sakamori, Tomohide Tatsumi, Masashi Mizokami, Tetsuo Takehara
    • Organizer
      The 55th International Liver Congress of the EASL
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 肝癌発育進展における肝星細胞オートファジーの意義2019

    • Author(s)
      明神悠太、疋田隼人、竹原徹郎
    • Organizer
      第55回日本肝臓学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] Autophagy in hepatic stellate cells accelerates HCC progression via GDF152019

    • Author(s)
      Yuta Myojin, Hayato Hikita ,Takahiro Kodama, Ryoko Yamada, Ryotaro Sakamori, Tomohide Tatsumi, Tetsuo Takehara
    • Organizer
      JSH International Liver Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Remarks] 肝がん進展に関わる新たな分子を発見 ~肝細胞がんの新規治療薬への臨床応用に期待~

    • URL

      https://www.med.osaka-u.ac.jp/activities/results/2020year/hikita-myojin2020

    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2022-01-27  

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