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Development of novel cancer therapy targeting the interaction of the HSP40 family with mutant p53

Research Project

Project/Area Number 21K09855
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57020:Oral pathobiological science-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Kaida Atsushi  東京医科歯科大学, 大学院医歯学総合研究科, 講師 (40632097)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords頭頸部がん / p53変異 / HSP40ファミリー / スクリーニング / siRNAライブラリー / p53 / Gain of function / HSP40 / ケミカルスクリーニング
Outline of Research at the Start

本研究課題では、変異p53を安定化するHSP40タンパク質を明らかにし、同定されたHSP40タンパク質と変異p53とのinteractionを阻害する化合物の探索とその効果を解析することにより、頭頸部がんにおける新規治療法の確立に向けた基盤構築を目指す。

Outline of Final Research Achievements

In this study, we explored HSP40 proteins that can stabilize mutant p53 by screening with an siRNA library for the approximately 50 types present in the HSP40 family. It has already been shown that DNAJA1, a member of the HSP40 family, binds to and stabilizes conformational mutant p53, thereby promoting cancer metastasis. However, the screening based on immunofluorescence identified eight candidate factors other than DNAJA1. Furthermore, protein analysis by an alternative method suggested that at least three types of HSP40 proteins might contribute to the stabilization of mutant p53.

Academic Significance and Societal Importance of the Research Achievements

p53変異がしばしば検出される頭頸部がんにおいては、外科的切除がよく用いられているが、生活の質を維持し得る点からも非外科的な治療法は患者にとって重要な選択肢となり得る。様々な分子標的治療が開発されている中で、多くの頭頸部がんに発現している変異p53を標的とすることは有効な手段と考えられるが、未だ臨床応用には至っていない。本研究課題では、野生型p53とは異なり、変異p53がどのように安定化され、細胞内で蓄積することで癌の悪性化や転移に寄与しているのかに関するメカニズムに迫っており、今後、そのメカニズムの詳細を明らかにすることで変異p53を標的とした新規創薬につながる可能性が考えられる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Children's Mercy Research Institute(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Children's Mercy Research Institute(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] DNAJA1 promotes cancer metastasis through interaction with mutant p532021

    • Author(s)
      Kaida Atsushi、Yamamoto Satomi、Parrales Alejandro、Young Eric D.、Ranjan Atul、Alalem Mohamed A.、Morita Kei-ichi、Oikawa Yu、Harada Hiroyuki、Ikeda Tohru、Thomas Sufi M.、Diaz Francisco j.、Iwakuma Tomoo
    • Journal Title

      Oncogene

      Volume: 40 Issue: 31 Pages: 5013-5025

    • DOI

      10.1038/s41388-021-01921-3

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regulation of p53 and Cancer Signaling by Heat Shock Protein 40/J-Domain Protein Family Members2021

    • Author(s)
      Kaida Atsushi、Iwakuma Tomoo
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 24 Pages: 13527-13527

    • DOI

      10.3390/ijms222413527

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 変異p53の安定化に寄与し得る新規HSP40タンパク質の探索2023

    • Author(s)
      戒田篤志、三浦雅彦
    • Organizer
      第26 回 癌治療増感研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] HSP40/DNAJA1による構造変異型p53の安定化を介した癌転移促進機構の解明2022

    • Author(s)
      戒田 篤志、岩熊 智雄 、三浦 雅彦
    • Organizer
      第27回癌治療増感研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] HSP40/DNAJA1による構造変異型p53依存的な癌転移促進機構の解明2022

    • Author(s)
      戒田 篤志、岩熊 智雄
    • Organizer
      日本ハイパーサーミア学会第39回大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] HSP40ファミリーDNAJA1と変異p53間のinteractionを介した癌転移促進機構2021

    • Author(s)
      戒田 篤志、三浦 雅彦
    • Organizer
      日本歯科放射線学会第232回関東地方会・第40回北日本地方会・第28回合同地方会
    • Related Report
      2021 Research-status Report
  • [Presentation] DNAJA1 promotes cancer metastasis through the interaction with misfolded mutant p532021

    • Author(s)
      Atsushi Kaida, Satomi Yamamoto, Atul Ranjan, Alejandro Parrales, Mohamed Alalem, Tomoo Iwakuma
    • Organizer
      2nd International Conference “Cancer Metastasis”
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 東京医科歯科大学歯科放射線診断・治療学分野ホームページ

    • URL

      https://tmdu.dent-radiol.com/

    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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