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Elucidation of epigenomic regulation by chromosome segregation factor and identification of novel therapeutic target for leukemia

Research Project

Project/Area Number 19H03690
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionChiba University

Principal Investigator

Hoshii Takayuki  千葉大学, 大学院医学研究院, 講師 (20464042)

Co-Investigator(Kenkyū-buntansha) 金田 篤志  千葉大学, 大学院医学研究院, 教授 (10313024)
荒木 喜美  熊本大学, 生命資源研究・支援センター, 教授 (90211705)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords転写制御 / エピゲノム / 白血病 / ヒストンメチル化酵素 / エピゲノム制御 / 細胞分裂 / 染色体分配
Outline of Research at the Start

ヒストンH3のK4トリメチル化は細胞の未分化性維持やがん化に重要であり、修飾酵素は重要な薬剤標的である。近年申請者は、急性骨髄性白血病細胞で、ES細胞に必須とされるH3K4メチル化酵素SETD1Aが、DNA修復遺伝子群の発現を制御することを報告した(HoshiiT「申請者」et al., Cell, 2018)。また、この過程で、染色体分配因子とSETD1Aの新規複合体を見出した。本研究では、新規エピゲノム制御機構を解明し、幹細胞性を司るエピゲノム制御複合体を標的とした、新しいがん標的薬開発の基盤形成を目指す。

Outline of Final Research Achievements

The H3K4 methyltransferase SETD1A is one of MLL family members in vertebrate, but our study indicated the essential role of non-catalytic function for cell survival and cell proliferation in leukemia as well as other cancer cells. Here we demonstrated the possible roles of BuGZ as a transcriptional regulator for the SETD1A-dependent gene expression. BuGZ is known as an essential factor for chromosomal segregation but the knockdown of BuGZ induced apoptosis without showing the abnormality in chromosomal segregation in leukemia cells. We also observed the significant downregulation of DNA repair pathway-associated genes, which are known to be regulated by SETD1A, in BuGZ knockdown cells. BuGZ are localized at both TSS and enhancer region. These results suggested that BuGZ is a potential upstream regulator of SETD1A and a new therapeutic target for leukemia.

Academic Significance and Societal Importance of the Research Achievements

本研究では白血病細胞の治療標的となりうる新規機能性タンパク質の解析を実施し、これまでに既に報告されていた機能とは全く異なる役割を見出した。染色体分配機構はがん細胞の継続的な細胞増殖に必須であるが、その際に働くタンパク質は細胞分裂以外でも重要な役割を担っていることが明らかとなった。このようなタンパク質を治療標的とすることは、増殖期のがんだけでなく、休止状態のがんの根絶にも効果を発揮することが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (14 results)

All 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (6 results) (of which Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] City of Hope/Dana-Farber Cancer Institute(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Dana-Farber Cancer Institute/MSKCC/Rockefeller University(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Dana-Farber Cancer Institute(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] High-resolution characterization of gene function using single-cell CRISPR tiling screen2021

    • Author(s)
      Yang Lu、Chan Anthony K. N.、Miyashita Kazuya、Delaney Christopher D.、Wang Xi、Li Hongzhi、Pokharel Sheela Pangeni、Li Sandra、Li Mingli、Xu Xiaobao、Lu Wei、Liu Qiao、Mattson Nicole、Chen Kevin Yining、Wang Jinhui、
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1

    • DOI

      10.1038/s41467-021-24324-0

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Activation of EHF via STAT3 phosphorylation by LMP2A in Epstein‐Barr virus‐positive gastric cancer2021

    • Author(s)
      Li Wenzhe、Okabe Atsushi、Usui Genki、Fukuyo Masaki、Matsusaka Keisuke、Rahmutulla Bahityar、Mano Yasunobu、Hoshii Takayuki、Funata Sayaka、Hiura Nobuhiro、Fukayama Masashi、Tan Patrick、Ushiku Tetsuo、Kaneda Atsushi
    • Journal Title

      Cancer Science

      Volume: 112 Issue: 8 Pages: 3349-3362

    • DOI

      10.1111/cas.14978

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cross-species chromatin interactions drive transcriptional rewiring in Epstein-Barr virus-positive gastric adenocarcinoma2020

    • Author(s)
      Okabe Atsushi, Huang Kie Kyon, Matsusaka Keisuke, Fukuyo Masaki, Xing Manjie, Ong Xuewen, Hoshii Takayuki, Usui Genki, Seki Motoaki, Mano Yasunobu, Rahmutulla Bahityar, Kanda Teru, Suzuki Takayoshi, Rha Sun Young, Ushiku Tetsuo, Fukayama Masashi, Tan Patrick, Kaneda Atsushi
    • Journal Title

      Nature Genetics

      Volume: 52 Issue: 9 Pages: 919-930

    • DOI

      10.1038/s41588-020-0665-7

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The lysophospholipase D enzyme Gdpd3 is required to maintain chronic myelogenous leukaemia stem cells.2020

    • Author(s)
      Naka K, Ochiai R, Matsubara E, Kondo C, Yang KM, Hoshii T, Araki M, Araki K, Sotomaru Y, Sasaki K, Mitani K, Kim D-W, Ooshima A, Kim SJ.
    • Journal Title

      Nature Comm

      Volume: 11 Issue: 1 Pages: 4681-4681

    • DOI

      10.1038/s41467-020-18491-9

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] H3K4 methyltransferase SETD1A regulates the mitochondrial respiration in acute myeloid leukemia2021

    • Author(s)
      星居孝之
    • Organizer
      第80回 日本癌学会学術総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 新規H3K4メチル化複合体による細胞周期に伴うDNA損傷応答機構の制御2020

    • Author(s)
      星居孝之
    • Organizer
      第14回日本エピジェネティクス研究会(招待講演)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Roles of non-canonical H3K4 methyltransferase complex in leukemia2020

    • Author(s)
      星居孝之
    • Organizer
      The 7th Cancer Epigenomics Symposium
    • Related Report
      2020 Annual Research Report
  • [Presentation] H3K4メチル基転移酵素の触媒作用非依存的な転写制御2019

    • Author(s)
      星居孝之
    • Organizer
      第13回日本エピジェネティクス研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Targeting of a non-catalytic function of H3K4 methyltransferase SETD1A in leukemia2019

    • Author(s)
      星居孝之
    • Organizer
      第78回日本癌学会学術総会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] H3K4メチル化酵素の触媒活性非依存的な転写調節による白血病細胞の増殖制御2019

    • Author(s)
      星居孝之
    • Organizer
      第42回日本分子生物学会年会
    • Related Report
      2019 Annual Research Report
  • [Remarks] Molecular Oncology, Chiba University

    • URL

      https://www.m.chiba-u.ac.jp/class/moloncol/

    • Related Report
      2021 Annual Research Report

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Published: 2019-04-18   Modified: 2024-12-25  

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