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Identification of molecular target protein of small heat shock proteins and analysis of their functional regulatory system

Research Project

Project/Area Number 20K08283
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionGifu University

Principal Investigator

Nishiwaki Rie  岐阜大学, 大学院医学系研究科, 助教 (90734202)

Co-Investigator(Kenkyū-buntansha) 高井 光治  岐阜大学, 大学院医学系研究科, 特任教授 (70402196)
小澤 修  岐阜大学, 大学院医学系研究科, 教授 (90225417)
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ストレスタンパク質 / 低分子量 / 肝細胞癌 / 細胞運動 / ストレス蛋白質 / 肝癌
Outline of Research at the Start

私共は低分子量ストレスタンパク質に注目し、リン酸化型HSP27及びHSP20がMAP kinase pathwayやAKT pathwayを抑制して肝癌細胞増殖に対して抑制的に作用すること、HSP20およびHSP22の分子標的がPI3 kinaseであり、その直接相互作用が肝癌細胞の転移能を抑制することを明らかとした。最近私共は肝癌細胞内でHSP27がHSP20またはHSP22とそれぞれ結合してネットワークを形成していることを見出している。本研究の目的はHSPBの新たな分子標的を同定し、HSPBとの直接的相互作用による肝癌細胞制御機構の詳細を解析し、新たな治療法の開発に資することである。

Outline of Final Research Achievements

Small heat shock proteins (HSPBs) regulate a variety of cellular functions. We have previously reported that HSP20, HSP22 and HSP27 are highly expressed in hepatocellular carcinoma (HCC) and that each HSP suppresses the progression of HCC. HSPBs are known to form protein complexes with various molecular target proteins and regulate them. In the present study, we investigated the target proteins to which HSPB binds in HCC. HSP27/HSP20 and HSP27/HSP22 complexes were observed in both HSPB6-overexpressing human HCC derived HuH-7 cells and resected human HCC tumor tissues, but not the HSP20/HSP22 complex. The presence of the HSPB complexes in HCC tissue was inversely corelated with the progression of HCC. Our results strongly suggest that the formation of HSPB complexes plays a suppressive role in HCC progression.

Academic Significance and Societal Importance of the Research Achievements

低分子量ストレス蛋白質(HSPB)による肝細胞癌の進展の制御については、私共が世界に先んじてその機構の詳細の検討を行っている。本研究において私共が見出した、肝癌細胞内においてHSP27がHSP20およびHSP22を標的分子として各々と独立に複合体を形成するという結果に加え、これらHSPB複合体の存在と肝細胞癌の進展との間には、分化度、大きさ、ステージ、脈管浸潤において逆相関の関係があるという結果は、低分子量ストレスタンパク質を標的とした新たな肝細胞癌の治療法の確立に大いに資すると考えられた。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (2 results)

  • [Journal Article] Correlation between the complex of small heat shock proteins (HSPBs) and the progression in patients with hepatocellular carcinoma.2022

    • Author(s)
      Matsushima-Nishiwaki R, Toyoda H, Maeda A, Kaneoka Y, Kumada T and Kozawa O.
    • Journal Title

      Archives of Biochemistry and Biophysics

      Volume: 732 Pages: 109461-109461

    • DOI

      10.1016/j.abb.2022.109461

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] SERMs (selective estrogen receptor modulator) acting as estrogen receptor β agonists in hepatocellular carcinoma cells, inhibit the transforming growth factor-α-induced migration via specific inhibition of AKT signaling pathway.2022

    • Author(s)
      Matsushima-Nishiwaki R, Yamada N, Hattori Y, Hosokawa Y, Tachi J, Hori T and Kozawa O.
    • Journal Title

      PLoS One.

      Volume: 17 Issue: 1 Pages: e0262485-e0262485

    • DOI

      10.1371/journal.pone.0262485

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cellular Functions of Small Heat Shock Proteins (HSPB) in Hepatocellular Carcinoma.2021

    • Author(s)
      Yamada N, Matsushima-Nishiwaki R, Kobayashi K, Takahata S, Toyoda H, Kumada T and Kozawa O.
    • Journal Title

      Curr Mol Med.

      Volume: 21 Issue: 10 Pages: 1-16

    • DOI

      10.2174/1573405617666210204211252

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] GLP-1 reduces the migration of hepatocellular carcinoma cells via suppression of the stress-activated protein kinase/c-Jun N-terminal kinase pathway.2021

    • Author(s)
      Yamada N, Matsushima-Nishiwaki R, Kobayashi K, Tachi J and Kozawa O.
    • Journal Title

      Arch Biochem Biophys.

      Volume: 703 Pages: 108851-108851

    • DOI

      10.1016/j.abb.2021.108851

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Heat shock protein 70 positively regulates transforming growth factor-α-induced hepatocellular carcinoma cell migration via the AKT signaling pathway.2020

    • Author(s)
      Kobayashi K, Matsushima-Nishiwaki R, Yamada N, Migita S, Hioki T, Mizutani D and Kozawa O.
    • Journal Title

      Heliyon

      Volume: 6 Issue: 9 Pages: e05002-e05002

    • DOI

      10.1016/j.heliyon.2020.e05002

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] GLP-1 reduces the migration of hepatocellular carcinoma cells via suppression of the c-Jun N-terminal kinase pathway2021

    • Author(s)
      Rie Matsushima-Nishiwaki, Noriko Yamada, Osamu Kozawa
    • Organizer
      第80回日本癌学会学術総会
    • Related Report
      2021 Research-status Report
  • [Presentation] ケルセチンは、HGFまたはTGF-αによって刺激されたHCC細胞遊走を抑制する:AKTシグナル伝達経路の減衰2020

    • Author(s)
      山田紀子、西脇 理英、小澤 修
    • Organizer
      第79回日本癌学会学術総会
    • Related Report
      2020 Research-status Report

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

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