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E1A 誘導性クロマチン制御因子による感染増殖阻止機構の解析

Research Project

Project/Area Number 19041069
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

横山 和尚  The Institute of Physical and Chemical Research, 遺伝子材料開発室, 室長 (80182707)

Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥7,100,000 (Direct Cost: ¥7,100,000)
Fiscal Year 2008: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2007: ¥3,700,000 (Direct Cost: ¥3,700,000)
KeywordsJDP2 / CMV / 転写制御 / ウイルス感染阻止 / ヒト不死化繊維芽細胞 / CMV-Cre Tg / レポーター / ヒストンアセチル化 / アランニン置換 / ヒストンシャペロン / 核内移行シグナル / JDP2会合複合体 / アデノウイルス / サイトメガロウイルス
Research Abstract

アデノウイルス感染によって誘導される転写因子のひとつATF-2とコアクチベーターのp300/CBPの発現を完全に抑制する宿主防御因子JDP2(Jun dimerization protein 2)を同定した。JDP2は、それ自身ヒストンと会合しクロマチン重合反応を促進すると同時に、p300/CBPのヒストンアセチル化を阻止する活性を有する新規ヒストンシャペロンである。一方、我々は、ウイルス感染において、JDP2がヒトサイトメガロウイルスプロモーターからの転写を著しく抑制する事を見いだし、その抑制活性はプロモーター上のAP-1サイトに依存する事を明らかにした。
1. JDP2の全アミノ酸に対する連続アラニン置換変異体を用いてドメイン解析を行った。
2. JDP2の核移行シグナル(NLS)と核排出シグナル(NES)を同定し、その野生型変異体を用いた局在性を明らかにした。
3. JDP2と会合する因子をエピトープタグ、アフィーニティクロマトグラフィー法によって精製し同定した。
4. サイトメガロウイルスプロモーターのAP-1サイトの変異体を用いた解析によりJDP2の抑制活性はAP-1に基因することを明らかにした。
5. サイトメガロウイルスプロモーター上のAP-1サイトに対するオリゴヌクレオチドをプローブとしてゲルシフトアッセイをin vitro及びin vivoで行い、JDP2がAP-1サイトにリクルー卜されることを明らかにした。
6. ヒト不死化線維芽細胞にJDP2遺伝子を発現させた形質転換HIFFを用いて、JDP2のサイトメガロウイルスに対する感染阻止活性をみいだした。
7. JDP2の個体レベルでの作用機序を解析するため。CMV-Creトランスジェニックマウスを作製し、その発現能を臓器別に解析した。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (17 results)

All 2009 2008 2007

All Journal Article (14 results) (of which Peer Reviewed: 14 results) Presentation (3 results)

  • [Journal Article] Jun dimerization protein 2-deficient mouse embryonic fibroblasts are resistant to replicative senescence.2009

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

      J. Biol. Chem. (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The ubiquitously expressed bZIP inhibitor, JDP2, suppresses the transcription of its homologue immediate early gene counterpart, ATF3.2009

    • Author(s)
      Weidenfeld-Baranboim, K., et al.
    • Journal Title

      Nuc. Acids Res. (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phosphorylation of activation transcription factor-2 (ATF-2) at serine 121 by protein kinase C controls c-Jun-mediated activation of transcription.2009

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

      J. Biol. Chem. (in press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] E1A, E1B double-restricted replicative adenovirus at low dose greatly augments tumor-specific suicide gene therapy for gallbladder cancer.2009

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

      Cancer Gene Therapy 16

      Pages: 126-136

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inactivation of AP1 proteins by a nuclear serine protease precedes the onset of radiation-induced fibrosing alveolitis.2008

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

      Radiation Research 169

      Pages: 531-542

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genes encoded within 8q24 on the amplicon of a large extrachromosomal element are selectively repressed during the terminal differentiation of HL-60 cells.2008

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

      Mutation Research 640

      Pages: 97-106

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phosphorylation of two eukaryotic transcription factors, Jun dimerization protein 2 and activation transcription factor 2, in Escherichia coli by Jun N-terminal kinase 1.2008

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

      Anal. Biochem. 376

      Pages: 115-121

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inactivation of AP-1 proteins by a nuclear serine protease precedes the onset of radiation-induced fibrosing albeolitis.2008

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

      Radiation Research (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transcription factor Jun dimerization protein 2 (JDP2) has histone-chaperone activity that suppresses gene expression.2008

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

      Current Topics in Biochemical Research (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Genes encoded within 8q24 on the amplicon of a large extrachromosomal element are selectively repressed during the terminal differentiation of HL-60 cells.2008

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

      Mutation Research (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phosphorylation of the eukaryotic transcription factors JUN dimerization protein 2 and ATF-2 in Escherichia coli by Jun N-terminal kinase 1.2008

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

      Anal. Biochem., et. al. (in press)

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] E1A, E1B double-restricted adenovirus with RGD-Fiber modification exhibits enhanced oncolysis for CAR-deficient biliary cancers.2007

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

      Clin. Cancer Res. 13

      Pages: 3043-3050

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] JDP2 suppresses adipocyte differentiation by regulating histone acetylation.2007

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

      Cell Death and Differentiaton 14

      Pages: 1398-1405

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Assays of nucleosome assembly and the inhibition of histone acetyltrans ferase activity2007

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

      Nature Protocols

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Anti-viral factor JDP2 regulates differentiation and proliferation of adipocytes and replicative senescence2008

    • Author(s)
      Yokoyama, K., et al.
    • Organizer
      8th Awaji International Forum on Infection and Immunity
    • Place of Presentation
      Awaji, Japan
    • Year and Date
      2008-09-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] AP-1 repressor JDP2 regulates differentiation and proliferation of adipocytes and replicative senescence of mouse embryonic fibroblasts2008

    • Author(s)
      Nakade, K., et al.
    • Organizer
      Mechanisms & Models of Cancer, Cold Spring Harbor Meeting
    • Place of Presentation
      NY, U.S.A.
    • Year and Date
      2008-08-15
    • Related Report
      2008 Annual Research Report
  • [Presentation] AP-1 repressor JDP2 suppresses adipocyte differentiation by regulating histone acetylation.2007

    • Author(s)
      Pan, J., et. al.
    • Organizer
      Mechanisms of Eukaryotic Transcription, Cold Spring Harbor Meeting, Cold Spring Harbor
    • Place of Presentation
      NY, U.S.A.
    • Year and Date
      2007-08-31
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2018-03-28  

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