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p53制御分子Pirh2の新たなユビキチン化標的分子とがん化との関連

Research Project

Project/Area Number 18012021
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionHamamatsu University School of Medicine

Principal Investigator

北川 雅敏  Hamamatsu University School of Medicine, 医科部, 教授 (50294971)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥11,000,000 (Direct Cost: ¥11,000,000)
Fiscal Year 2007: ¥5,600,000 (Direct Cost: ¥5,600,000)
Fiscal Year 2006: ¥5,400,000 (Direct Cost: ¥5,400,000)
Keywords細抱周期 / 癌 / ユビキチン / p27Kipl / 細胞周期 / p53
Research Abstract

本研究ではp53のユビキチンリガーゼとして報告されているPirh2の新たな機能を解明し、がん化との関連を明らかにすることを目的とする。これまでの我々の解析でPirh2のp53をユビキチン化する活性は低いことを示唆するデータが出ており、Pirh2のp53以外の標的の同定と機能の解明を目指す。我々はp27KiplのN末端をbaitとしたYeast Two-hybridスクリーニングで、Pirh2を検出した。このことからp27が新たなPirh2の基質である可能性が示唆され、その検証を行なった。その結果、Pirh2は哺乳動物細胞内で過剰発現させるとp27と結合し、p27のユビキチン化と分解を充進する能力を有することがわかった。この機能はPirh2のリングフィンガードメイン依存的であり、Pirh2がp27の新たなユビキチンリガーゼの候補であることが示唆された。さらに内因性Pirh2をsiRNAによりノックダウンすると,p27は安定化することがわかった。T98G細胞をGO/G1に同調し、Pirh2をsiRNAによりノックダウンしたあと、細胞周期を再開させ、Pirh2の細胞周期進行における機能を解析した。その結果、G1期においてp27の分解が抑制され、細胞周期のG1/S進行が著明に抑制された。以上よりPirh2はp27の新たなユビキチンリガーゼとして細胞周期のG1/S進行に関与していることが強く示唆された。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (22 results)

All 2008 2007 2006 Other

All Journal Article (16 results) (of which Peer Reviewed: 9 results) Presentation (3 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Pirh2 interacts with and ubiquitylates signal recognition particle recept or beta subunit2008

    • Author(s)
      Abe, K., et. al.
    • Journal Title

      Biomed Res. 29

      Pages: 53-60

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pirh2 Promotes Ubiquitin-Dependent Degradation of the CDK Inhibitor p27Kipl2007

    • Author(s)
      Hattori, T., et. al.
    • Journal Title

      Cancer Res. 67

      Pages: 10789-10795

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ARA54 is involved in transcriptional regulation of the cyclin D1 gene in human cancer cells2007

    • Author(s)
      Kikuchi, H., et. al.
    • Journal Title

      Carcinogenesis. 28

      Pages: 1752-1758

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Renal damage in obstructive nephropathy is decreased in Skp2-deficientmice2007

    • Author(s)
      Suzuki, S., et. al.
    • Journal Title

      Am.J.Pathol. 171

      Pages: 473-483

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of loss of heterozygosity of the c-kit gene Effect of loss of heterozygosity of the c-kit gene Effect of loss of heterozygosity of the c-kit gene on prognosis after hepatectomy for metastatic liver gastrointestinal stromal tumors2007

    • Author(s)
      Kikuchi, H., et. al.
    • Journal Title

      Cancer Sci. 98

      Pages: 1734-1739

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cys-881 is essential for the trafficking and secretion of truncated mutant seruloplasmin in aceruloplasminemia2007

    • Author(s)
      Kono, S., et. al.
    • Journal Title

      J.Hepatology 47

      Pages: 844-850

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stress via p53 pathway causes apoptosis by mitochondrial Noxa upregulation in doxorubicin-treated neuroblastoma cells2007

    • Author(s)
      Kurata, K., et. al.
    • Journal Title

      Oncogene 27

      Pages: 741-754

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Critical and functional regulation of CHOP(C/EBP homologo us protein)through the N-terminal portion2007

    • Author(s)
      Ohoka, N., et. al.
    • Journal Title

      J Biol Chem 282

      Pages: 35687-35694

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Contribution of Extracellular Signal-Regulated Kinases to the IL-1-induced Growth Inhibition of Human Melanoma Cells A3752007

    • Author(s)
      Arakawa, T., et. al.
    • Journal Title

      International Immunopharmacology 8

      Pages: 80-89

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Up-regulation of GPR48 induced by down-regulation of p27^<Kip1> enhances carcinoma cell invasiveness and metastasis.2006

    • Author(s)
      Gao, Y.et al.
    • Journal Title

      Cancer Research 66

      Pages: 11623-11631

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Degradation of Tobl mediated by SCF^<Skp2>-dependent ubiquitination.2006

    • Author(s)
      Hiramatsu, Y. et al.
    • Journal Title

      Cancer Research 66

      Pages: 8477-8483

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Generation of a constitutively active mutant of human GPR48/LGR4, a G-protein-coupled receptor.2006

    • Author(s)
      Gao, Y.et al.
    • Journal Title

      Hokkaido. J. Med. Sci. 81

      Pages: 101-105

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Effect of MdmX on Mdm2-mediated downregulation of pRB.2006

    • Author(s)
      Uchida, C. et al.
    • Journal Title

      FEBS Letters 580

      Pages: 1753-1758

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Ubiquitin-dependent degradation of SnoN and Ski is increased in renal fibrosis induced by obstructive injury.2006

    • Author(s)
      Fukasawa, H. et al.
    • Journal Title

      Kidney Int. 69

      Pages: 1733-1740

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Role of the second-largest subunit of DNA polymerase α in the interaction between the catalytic subunit and hyperphosphorylated retinoblastoma protein in late S phase.2006

    • Author(s)
      Takemura, M. et al.
    • Journal Title

      Biochem. Biophys. Acta 1764

      Pages: 1447-1453

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Biochemical features of ceruloplasmin gene mutations linked to aceruloplasminemia.2006

    • Author(s)
      Kono, S. et al.
    • Journal Title

      Neuromolecular Med. 8

      Pages: 361-374

    • Related Report
      2006 Annual Research Report
  • [Presentation] 細胞周期制御分子p27のユビキチン依存的分解機構と病態2007

    • Author(s)
      北川雅敏
    • Organizer
      第30回日本分子生物学会第80回日本生化学会合同大会
    • Place of Presentation
      横浜
    • Year and Date
      2007-12-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] Novel regulatory mechanisms of Cyclin D1 expression2007

    • Author(s)
      Kitagawa, M.Et al
    • Organizer
      第66回日本癌学会学術総会
    • Place of Presentation
      横浜
    • Year and Date
      2007-10-05
    • Related Report
      2007 Annual Research Report
  • [Presentation] 癌関連核内子のユビキチン依存的制御機構2007

    • Author(s)
      北川雅敏
    • Organizer
      Nuclear Signaling JAPAN 2007シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2007-07-13
    • Related Report
      2007 Annual Research Report
  • [Book] 細胞周期集中マスター2006

    • Author(s)
      北川雅敏 (編者)
    • Total Pages
      154
    • Publisher
      羊土社
    • Related Report
      2006 Annual Research Report
  • [Book] ユビキチン-ブロデアソーム糸とオートファジー(田中啓二・大隅良典編)2006

    • Author(s)
      北川雅敏 (分担執筆)
    • Total Pages
      434
    • Publisher
      共立出版
    • Related Report
      2006 Annual Research Report
  • [Remarks]

    • URL

      http://www2.hama-med.ac.jp/w1a/bio1/index-j.html

    • Related Report
      2007 Annual Research Report

URL: 

Published: 2006-04-01   Modified: 2018-03-28  

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