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The clarification of a tumorigenesis of malignant rhabdoid tumor through a understanding of control mechanism of RUNX1 by hSNF5

Research Project

Project/Area Number 16K10038
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pediatrics
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Kuwahara Yasumichi  京都府立医科大学, 医学(系)研究科(研究院), 講師 (30590327)

Co-Investigator(Kenkyū-buntansha) 奥田 司  京都府立医科大学, 医学(系)研究科(研究院), 教授 (30291587)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
KeywordsRUNX1 / SWI/SNF複合体 / 悪性ラブドイド腫瘍 / SNF5 / クロマチン免疫沈降法 / ラブドイド腫瘍 / Rhabdoid腫瘍 / 転写制御 / クロマチンリモデリング因子 / RUNX / SWI/SNF
Outline of Final Research Achievements

To elucidate alterations of functions of transcription factor with a loss of SNF5, we focused the relationship between SWI/SNF complex and transcription factor, RUNX1 on p21 locus in malignant rhabdoid tumor (MRT) cells. We indicated that RUNX1 binds to SWI/SNF complex with or without SNF5 via C-terminal of RUNX1. A loss of SNF5 caused an increase of RUNX1 recruitment on p21 promoter region, followed by an aberrant of transcription activities of p21 gene.
SWI/SNF complex interacts with transcription factor to regulate transcription activities. However, SWI/SNF complex without SNF5 has abnormal function to transcription factors, resulted in abnormal control of gene expressions.

Academic Significance and Societal Importance of the Research Achievements

MRTは乳幼児に発症する予後の悪い小児固形腫瘍である。SNF5遺伝子の単一の異常でMRTは発症するため、病態の解明や治療法の開発にはSNF5遺伝子の機能解析は重要であるものの、十分解明されてはいない。また、SNF5と関係性のある転写因子を解析した研究の報告は少なく限定的であった。今回、SNF5欠損による転写因子との相互作用の変更が確認されたが、今後SNF5欠損によって影響している転写因子の解明が、有効な治療法の開発に直結することが示された点で意義のある研究結果である。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (4 results)

All 2018 2017 2016

All Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] Functional interaction between SWI/SNF complex and a hematopoietic transcription factor in malignant rhabdoid tumor.2018

    • Author(s)
      Yasumichi Kuwahara, Tatsushi Yoshida, Kenjiro Tadagaki and Tsukasa Okuda
    • Organizer
      第77回日本癌学会学術総会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Newly established MRT cell lines from multiple sites of a synchronous MRT patient2018

    • Author(s)
      Yasumichi Kuwahara, Hajime Hosoi, Tsukasa Okuda
    • Organizer
      International Rhabdoid Tumor Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mechanism of recruitment of SWI/SNF complex via interaction between SNF5 and transcription factor.2017

    • Author(s)
      Yasumichi Kuwahara, Kenta Yamasaki, Kenjiro Tadagaki, Tatsushi Yoshida, Tsukasa Okuda
    • Organizer
      2017年度生命科学系学会合同年次大会(第40回日本分子生物学会年会/第90回日本生化学会大会)
    • Related Report
      2017 Research-status Report
  • [Presentation] 悪性ラブドイド腫瘍.ラブドイド腫瘍の基礎研究の現状と臨床応用に向けた将来展望2016

    • Author(s)
      桒原康通
    • Organizer
      第58回小児血液・がん学会学術集会
    • Place of Presentation
      東京
    • Year and Date
      2016-12-15
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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