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染色体転座形成メカニズムのゲノム科学的解析

Research Project

Project/Area Number 16659272
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Pediatrics
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

滝 智彦  京都府立医科大学, 医学研究科, 講師 (50322053)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 2006: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2005: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 2004: ¥1,000,000 (Direct Cost: ¥1,000,000)
Keywords遺伝子 / 癌 / 白血病 / 染色体転座 / ゲノム / データベース / バイオインフォマティクス / MLL遺伝子
Research Abstract

染色体転座形成メカニズムを解明するうえで非常に重要な手がかりを与えてくれる5つの新しいキメラ遺伝子を同定した。
t(2;21)(q11;q22)を有するT細胞型急性リンパ性白血病(T-ALL)症例からAMLlの新たな転座相手LAF4を同定した。LAF4はB前駆型ALLにみられるt(2;11)(q11;q23)ではMLLと融合し、AML1とMLLのキメラに共通する初めての遺伝子であった。このことはAML1とMLLが共通のメカニズムにより再構成を起こす可能性を示唆する。
また、3例の白血病症例でMLLの切断点集中領域(BCR、エクソン5から11)の外側での切断を初めて同定した。MLLの切断点は、t(4;11)(q21;q23)を有するB前駆型ALL(CD10陰性)症例ではイントロン17に、t(6;11)(q27;q23)を有するγ/δ型T-ALL症例ではイントロン13に、t(11;17)(q23;q25)を有する治療関連急性骨髄性白血病(t-AML)症例ではイントロン4cに存在すると考えられた。これらの症例のMLLの切断点近傍に従来のBCR内の切断部位と共通の配列があるかどうかについて現在検討中である。
さらに、t-AML症例からこれまで我々が報告した1例のみでしか同定されていないMLL-p300を同定した。MLL-p300と同じ性質を持つと考えられるMLL-CBPを有する症例がほぼ全例t-AMLであるのと同様に、MLL-p300も2例ともがt-AMLから同定され、t-AMLの原因となる染色体転座のメカニズムを明らかにするうえで重要な手がかりになると考えられた。
現在以上の症例の切断点を詳細に解析している。今回同定した新しいキメラ遺伝子は染色体転座のメカニズムを明らかにするだけでなく、キメラ蛋白の未知の性質を明らかにするのにも重要な手がかりを与えてくれると考えられた。

Report

(3 results)
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (19 results)

All 2007 2006 2005 2004 Other

All Journal Article (17 results) Book (2 results)

  • [Journal Article] Detection of NOTCH 1 mutations in adult T-cell leukemia/lymphoma and peripheral T-cell lymphoma.2007

    • Author(s)
      Shimizu D, Taki T, et al.
    • Journal Title

      Int J Hematol 85

      Pages: 212-218

    • NAID

      10019488860

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Mutations of the PTPN11 and RAS genes in rhabdomyosarcoma and pediatric hematological malignancies.2006

    • Author(s)
      Chen Y, Taki T, et al.
    • Journal Title

      Genes Chromosomes Cancer 45

      Pages: 583-591

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Small cell variant type of T-prolymphocytic leukemia with a four-year indolent course preceding acute exacerbation.2006

    • Author(s)
      Shimizu D, Taki T, et al.
    • Journal Title

      Leuk Lymphoma 47

      Pages: 1170-1172

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Pulmonary relapse of non-Hodgkin's lymphoma in bilateral upper lobes.2006

    • Author(s)
      Fujimoto Y, Taki T, et al.
    • Journal Title

      Intern Med 45

      Pages: 971-973

    • NAID

      130000076464

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Chromosomal translocaions in cancer and their relevance for therapy.2006

    • Author(s)
      Taki T, Taniwaki M.
    • Journal Title

      Current Opinion in Oncology 18

      Pages: 62-68

    • Related Report
      2005 Annual Research Report
  • [Journal Article] KIT mutation, and not FLT3 internal tandem duplication, is strongly associated with a poor prognosis in pediatric acute myeloid leukemia with t(8;21) : a study of the Japanese Childhood AML Cooperative Study Group.2006

    • Author(s)
      Shimada A, Taki T, et al.
    • Journal Title

      Blood 107

      Pages: 1806-1809

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Dimerization of MLL fusion proteins and FLT3 activation synergize to induce multiple lineage leukemogenesis.2005

    • Author(s)
      Ono R, Taki T, et al.
    • Journal Title

      Journal of Clinical Investigation 115

      Pages: 919-929

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Infertility with defective spermiogenesis in mice lacking AF5q31, the target of chromosomal translocation in human infant leukemia.2005

    • Author(s)
      Urano A, Taki T, et al.
    • Journal Title

      Molecular and Cellular Biology 25

      Pages: 6834-6845

    • Related Report
      2005 Annual Research Report
  • [Journal Article] The MYO1F, unconventional myosin type 1F, gene is fused to MLL in infant acute monocytic leukemia with a complex translocation involving chromosomes 7,11,19 and 22.2005

    • Author(s)
      Taki T, Akiyama M, et al.
    • Journal Title

      Oncogene 24

      Pages: 5191-5197

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Disruption of Sept6, a fusion partner gene of MLL, does not affect ontogeny, leukemogenesis induced by MLL-SEPT6, or phenotype induced by the loss of Sept4.2005

    • Author(s)
      Ono R, Taki T, et al.
    • Journal Title

      Molecular and Cellular Biology 25

      Pages: 10965-10978

    • Related Report
      2005 Annual Research Report
  • [Journal Article] In vitro drug resistance to imatinib and mutation of ABL gene in childhood Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia2005

    • Author(s)
      Kawaguchi H, Taki T, et al.
    • Journal Title

      Leukemia and Lymphoma 46

      Pages: 273-276

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Mutations in the tyrosine kinase domain of the platelet-derived growth factor receptor a (PDGFRA) gene in childhood acute myeloid leukemia witht t(8;21)(q22;q22) or inv(16)(p13q22).2005

    • Author(s)
      Hiwatari M, Taki T, et al.
    • Journal Title

      Leukemia 19

      Pages: 476-477

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Characterization of genomic breakpoints in MLL and CBP in leukemia Datients with t(11:16).2004

    • Author(s)
      Zhang Y, Taki T, et al.
    • Journal Title

      Genes, Chromosomes, and Cancer 41

      Pages: 257-265

    • Related Report
      2004 Annual Research Report
  • [Journal Article] No nucleophosimin mutation in pediatric acute myeloid leukemia with normal karyotype : a study of the Japanese Childhood AML Cooperative Study Group.

    • Author(s)
      Shimada A, Taki T, et al.
    • Journal Title

      Leukemia (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] N822 mutation of KIT gene was frequent in pediatric acute myeloid leukemia patients with t(8;21) in Japan : a study of the Japanese Childhood AML Cooperative Study Group.

    • Author(s)
      Shimada A, Taki T, et al.
    • Journal Title

      Leukemia (印刷中)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Dimerization of MLL fusion proteins and FLT3 activation synergize to induce multiple lineage leukemoenesis.

    • Author(s)
      Ono R, Taki T, et al.
    • Journal Title

      Journal of Clinical Investigation (印刷中)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] The MYO1F, unconventional myosin type IF, gene is fused to MLL in infant acute monocytic leukemia with a complex translocation involving chromosomes 7,11,19 and 22.

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

      Oncogene (印刷中)b

    • Related Report
      2004 Annual Research Report
  • [Book] よく理解できる子どものがん2006

    • Author(s)
      滝 智彦(分担)
    • Total Pages
      346
    • Publisher
      永井書店
    • Related Report
      2006 Annual Research Report
  • [Book] 血液腫瘍-MIC-M診断から治療まで-2005

    • Author(s)
      編著 谷脇雅史, 分担 滝 智彦
    • Total Pages
      300
    • Publisher
      先端医学社
    • Related Report
      2005 Annual Research Report

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Published: 2004-04-01   Modified: 2016-04-21  

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