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ポリコーム複合体を中心としたエピゲノムネットワークの解析

Research Project

Project/Area Number 20052009
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionChiba University

Principal Investigator

岩間 厚志  Chiba University, 大学院・医学研究院, 教授 (70244126)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 2009: ¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2008: ¥3,700,000 (Direct Cost: ¥3,700,000)
Keywordsヒストンアセチル化酵素複合体 / Brd1 / Brpf1 / Hbo1 / TIF1β / BRD1 / BRPF2 / ヒストンアセチルビ酵素 / 赤芽球分化
Research Abstract

ヒストンアセチル化酵素複合体Hbol-BRD1/Brpf2のうち、BRD1のノックアウトマウスにおいて、胎仔肝の造血幹細胞の有意な減少を認め、胎仔は貧血のために胎生13.5日前後に死亡した。しかしながら、骨髄移植においてはほぼ正常の骨髄再建活性が認められた。これは、BRD1のファミリー分子による機能的な補完が行われるためと考えられる。この点を確認するために、HAT活性を有するHbo1のコンディショナルノックアウトマウスを作成中であり、キメラマウスが得られている。さらに、Hbo1とBRD1を共発現するK562血液細胞を用いてChIP-chip解析を行い、Hbo1とBRD1がともに多くの標的遺伝子を共有することが明らかとなった。また、転写共役因子であるTIF1β/KAP1は、KRABドメインを有するZinc finger型転写因子のco-repressorとして同定され、HP1やヒストンH3K9メチル化酵素SETDB1等をリクルートし、転写抑制やヘテロクロマチン化に働くことが示されている。造血細胞特異的なTIF1β遺伝子欠損マウスの解析より、TIF1bが造血幹細胞の維持に必須であることが示された。現在、マイクロアレイ解析、ChIP-seq等によりTIF1β欠損造血幹細胞におけるエピジェネティクス異常の実態を解明しつつある。

Report

(2 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (24 results)

All 2010 2009 2008

All Journal Article (17 results) (of which Peer Reviewed: 16 results) Presentation (7 results)

  • [Journal Article] Depletion of Dnmt1-associated protein 1 triggers DNA damage and compromises the proliferative capacity of hematopoietic stem cells2010

    • Author(s)
      Koizumi T
    • Journal Title

      Int J Hematol. (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Array-based genomic resequencing of human leukemia2010

    • Author(s)
      Yamashita Y
    • Journal Title

      Oncogene (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Polycomb-Group Gene Product Ezh2 Regulates Proliferation and Differentiation of Murine Hepatic Stem/Progenitor Cells2010

    • Author(s)
      Aoki R
    • Journal Title

      J Hepatology (in press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Poised lineage specification in multipotent hematopoietic stem and progenitor cells by the polycomb protein Bmil2010

    • Author(s)
      Oguro H
    • Journal Title

      Cell Stem Cell 6

      Pages: 279-286

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of a novel TEL-Lyn fusion gene in primary myelofibrosis2010

    • Author(s)
      Tanaka H
    • Journal Title

      Leukemia 24

      Pages: 197-200

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ex vivo expansion of human hematopoietic stem cells by a small-molecule agonist of c-MPL2009

    • Author(s)
      Nishino T
    • Journal Title

      Exp Hematol 37

      Pages: 1364-1377

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DMAP1 is essential for the recruitment of Pcna to repair foci2009

    • Author(s)
      Negishi M
    • Journal Title

      Genes Cells 14

      Pages: 1347-1357

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Plk1 regulates liver tumor cell death by phosphorylation of TAp632009

    • Author(s)
      Komatsu S
    • Journal Title

      Oncogene 28

      Pages: 3631-3641

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tumor suppression by phospholipase C-b3 via SHP-1-mediated dephosphorylation of Stat52009

    • Author(s)
      Xiao W
    • Journal Title

      Cancer Cell 16

      Pages: 161-171

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 幹細胞のエピジェネティクス2009

    • Author(s)
      岩間厚志
    • Journal Title

      ゲノム医学 9

      Pages: 171-175

    • Related Report
      2009 Annual Research Report
  • [Journal Article] FIP1L1-PDGFR. a imposes eosinophil lineage commitment on hematopoietic stem/progenitor cells.2009

    • Author(s)
      Fukushima K.
    • Journal Title

      J Biol Chem(印刷中)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] TGF-13 as a candidate bone marrow niche signal to induce hematopoietic stem cell hibernation.2009

    • Author(s)
      Yamazaki S.
    • Journal Title

      Blood 113

      Pages: 1250-1256

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Transcriptional profiling of hematopoietic stem cells by high-throughput sequencing.2009

    • Author(s)
      Yashiro Y.
    • Journal Title

      Int J Hematol 89

      Pages: 24-33

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Consequence of the loss of Sox2 in the developing brain of the mouse.2009

    • Author(s)
      Miyagi S.
    • Journal Title

      FEBS Lett. 582

      Pages: 2811-2815

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The poly comb gene product BMI1 contributes to the maintenance of tumor-initiating side population cells in hepatocellular carcinoma2008

    • Author(s)
      ChibaT.
    • Journal Title

      Cancer Res 68

      Pages: 7742-7749

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bmil regulates memory CD4 T cell survival via repression of the Noxa gene.2008

    • Author(s)
      Yamashita M.
    • Journal Title

      J Exp Med 205

      Pages: 1109-1120

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fbxw7 acts as a critical failsafe against premature loss of hematopoietic stem cells and development of T-ALL.2008

    • Author(s)
      Matsuoka S.
    • Journal Title

      Genes & Dev 22

      Pages: 986-991

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Bmil is essential for leukemic reprogramming of myeloid progenitor cells2009

    • Author(s)
      岩間厚志
    • Organizer
      51st ASH Annual Meeting and Exposition
    • Place of Presentation
      Ernest N.Morial Convention Center(USA)
    • Year and Date
      2009-11-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] 新規標的分子としてのポリコーム複合体2009

    • Author(s)
      岩間厚志
    • Organizer
      第71回日本血液学会学術集会
    • Place of Presentation
      国立京都国際会館
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] 幹細胞とエピジェネティクス2009

    • Author(s)
      岩間厚志
    • Organizer
      第82回日本生化学会大会
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2009-10-24
    • Related Report
      2009 Annual Research Report
  • [Presentation] Poised lineage specification in multipotential hematopoietic stem and progenitor cells by the polycomb protein Bmil2009

    • Author(s)
      岩間厚志
    • Organizer
      2009 ISEH 38th Annual Scientific Meeting
    • Place of Presentation
      ATHENS Hotel Divani Caravel(ギリシャ)
    • Year and Date
      2009-09-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] 癌幹細胞システムと癌治療2009

    • Author(s)
      岩間厚志
    • Organizer
      第27回日本口腔腫瘍学会総会教育講演
    • Place of Presentation
      宇都宮
    • Year and Date
      2009-01-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] ポリコーム複合体による幹細胞機能のエピジェネティック制御2008

    • Author(s)
      岩間厚志
    • Organizer
      第31回日本分子生物学会年会・第81回日本生化学会大会合同大会シンポジウム「翻訳後修飾系によるクロマチンの動態制御」
    • Place of Presentation
      神戸ポートアイランド
    • Year and Date
      2008-12-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Unexpected role for the polycomb gene Bmil in lymphocyte commitment2008

    • Author(s)
      岩間厚志
    • Organizer
      第38回日本免疫学会総会シンポジウム「Immunedevelopment」
    • Place of Presentation
      京都国際会場
    • Year and Date
      2008-12-02
    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2018-03-28  

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