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2009 Fiscal Year Annual Research Report

がんの発生と悪性化に関わるゲノムインスタビリティー関連遺伝子の単離

Research Project

Project/Area Number 20590309
Research InstitutionNagoya University

Principal Investigator

鈴木 元  Nagoya University, 大学院・医学系研究科, 講師 (80236017)

Co-Investigator(Kenkyū-buntansha) 村手 隆  名古屋大学, 医学部, 教授 (30239537)
Keywordsゲノムインスタビリティー / 肺癌 / 細胞周期 / DNA複製 / DNA修復 / チェックポインイ / マイクロアレー / ヒストン修飾
Research Abstract

癌が突然変異によって発生することが報告されて以来、数多くの癌関連遺伝子がヒト癌において同定されてきた。我々は、肺癌組織158例のMicroarray解析の結果を用いて、ゲノムインテグリティー関連遺伝子のmRNA発現プロファイルの検討を行った。その結果、本来癌で増加するはずのゲノムインテグリティー関連遺伝子の一つが、極めて生物学的悪性度の高い小細胞癌で特異的発現低下を示すことを見出した。そこでこの遺伝子のノックダウンを行い、表現型を調べたところ、DNA修復能の低下・細胞周期の遅延・染色体断裂の増加の3つの表現型を観察した。また、この遺伝子の過剰発現下でノックダウン実験を行い実験の特異性を調べたところ、全てについて相補を確認した。これに加えてこの遺伝子のノックダウンがゲノムインテグリティー低下の指標である微小核表現型を示すことを発見し報告した。以上の結果は今回発見した遺伝子産物が肺癌の発生に対して抑制的に働いていることを示すと同時に、今回の発見がさらに新たながんシグナル経路の発見に展開する可能性を示すものである。これら成果に加えて、新たながんシグナル経路の発見に努めるべく、この遺伝子産物とともに免疫沈降する遺伝子産物を解析した。MSにて解析したところ数種類の興味深いタンパク質を同定し、今後解析を行う予定である。さらに、この遺伝子産物をbaitに酵母2ハイブリッドスクリーニングを行っておりいずれかの方法によって来年度中の結合タンパク質の同定を目指している。

  • Research Products

    (18 results)

All 2010 2009

All Journal Article (12 results) (of which Peer Reviewed: 11 results) Presentation (6 results)

  • [Journal Article] Mechanism of Increased PLD1 Gene Expression During Early Adipocyte Differentiation Process of Mouse Cell Line, 3T3-L12010

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

      J Cell Biochem 109

      Pages: 375-382

    • Peer Reviewed
  • [Journal Article] ATRA inhibits ceramide kinase transcription in a human neuroblastoma cell line, SH-SY5Y cells : the role of COUP-TFI2010

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

      J Neurochem 112

      Pages: 511-520

    • Peer Reviewed
  • [Journal Article] Roles of POLD4, smallest subunit of DNA polymerase delta, in nuclear structures and genomic stability of human cells.2010

    • Author(s)
      Huang QM., et. al
    • Journal Title

      Binchem Bionhys Res Commun 391

      Pages: 542-546

    • Peer Reviewed
  • [Journal Article] Functions of base selection step in human DNA polymerase alpha.2010

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

      DNA repair (in press)

    • Peer Reviewed
  • [Journal Article] Proteasomal Non-catalytic Subunit PSMD2 as a Potential Therapeutic Target in Association with Various Clinicopathologic Features in Lung Adenocarcinomas.2010

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

      Mol Carcinog (in press)

    • Peer Reviewed
  • [Journal Article] p27 deregulation by Skp2 overexpression induced by the JAK2V617 mutation2009

    • Author(s)
      Furuhata A., et. Al
    • Journal Title

      Biochem Biophvs Res Commun 383

      Pages: 411-416

    • Peer Reviewed
  • [Journal Article] GATA-1 and GATA-2 binding to 3' enhancer of WT1 gene is essential for its transcription in acute leukemia and solid tumor cell lines2009

    • Author(s)
      Furuhata A., et. al
    • Journal Title

      Leukemia 23

      Pages: 1270-1277

    • Peer Reviewed
  • [Journal Article] PCNA mono-ubiquitination and activation of translesion DNA polymerases by DNA polymerase alpha2009

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

      J Biochem 146

      Pages: 13-21

    • Peer Reviewed
  • [Journal Article] Mutated Ras induced PLD1 gene expression in human colon cancer cell lines and a mouse cell line of NIH3T32009

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

      Nagoya J Med Sci 71

      Pages: 127-136

    • Peer Reviewed
  • [Journal Article] Transcriptional regulation of neutral sphingomyelinase 2 gene expression of a human breast cancer cell line, MCF7, induced by anti-cancer drug, daunorubicin.2009

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

      Biochim Biophys Acta 1789

      Pages: 681-690

    • Peer Reviewed
  • [Journal Article] Counterbalance between RB inactivation and miR-17-92 overexpression in reactive oxygen species and DNA damage induction in lung cancers2009

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

      Oncogene 28

      Pages: 3371-3379

    • Peer Reviewed
  • [Journal Article] miRNAの異常と肺癌の分子病態2009

    • Author(s)
      細野祥之、鈴木元、高橋隆
    • Journal Title

      実験医学 27

      Pages: 1218-1222

  • [Presentation] Epigenetic reduction of POLD4/p12 and genomic instability induction in small cell lung cancer."2009

    • Author(s)
      Huang QM., et. al
    • Organizer
      The 3^<rd> International Symposium on "Molecular Science of Fluctuations toward Biological Functions
    • Place of Presentation
      Nagoya
    • Year and Date
      2009-12-20
  • [Presentation] Epigenetic reduction of POLD4/p12 and genomic instability induction in small cell lung cancer.2009

    • Author(s)
      Huang QM., et. al
    • Organizer
      The 2^<nd> International Symp Nagoya Univ GCOE
    • Place of Presentation
      Nagoya
    • Year and Date
      2009-11-25
  • [Presentation] Elucidation of Proteasomal Non-catalytic Subunit PSMD2 as Potential Therapeutic Target and Its Co-upregulation with Proteasome Pathway Genes in Association with Various Clinicop athologic Features in Lung Adenocarcinomas.2009

    • Author(s)
      Matsuyama M., et. al
    • Organizer
      The 2^<nd> International Symp Nagoya Univ GCOE
    • Place of Presentation
      Nagoya
    • Year and Date
      2009-11-25
  • [Presentation] Gene profiling listed a genomic instability gene involved in lung cancer2009

    • Author(s)
      Suzuki M, et. al
    • Organizer
      Bioregulation of Radiation Response : Damage Recognition, Processing and Cellular Response
    • Place of Presentation
      Kyoto
    • Year and Date
      2009-11-01
  • [Presentation] Epigenetic reduction of POLD4/p12 and genomic instability induction in small cell lung cancer2009

    • Author(s)
      Huang QM., et. al
    • Organizer
      The 19th International Symposium of Hiroshima Cancer Seminar in conjugation with Three Universities' Consortium
    • Place of Presentation
      Hiroshima
    • Year and Date
      2009-11-01
  • [Presentation] Gene profiling identified a gene involved in genetic instability in lung cancer2009

    • Author(s)
      Suzuki M., et. al
    • Organizer
      第68回日本癌学会学術総会
    • Place of Presentation
      横浜
    • Year and Date
      2009-10-03

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Published: 2011-06-16   Modified: 2016-04-21  

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