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Profiling of EBV positive DLBCL by DNA methylation epigenotype

Research Project

Project/Area Number 17K17637
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hematology
Tumor biology
Research InstitutionChiba University

Principal Investigator

Oshima Nagisa  千葉大学, 医学部附属病院, 医員 (20791932)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsEBV陽性DLBCL / DNAメチル化 / メチル化アレイ / EBウイルス / 悪性リンパ腫 / エピジェネティクス / 血液腫瘍学
Outline of Final Research Achievements

De novo EB virus positive DLBCL showed markedly higher DNA methylation pattern. De novo EB virus negative DLBCL demonstrated high methylation pattern but it’s not so high as de novo EB virus positive DLBCL. Immunosuppression based EB virus positive DLBCL showed low DNA methylation pattern as immortalized lymphocytes.
Next we performed RNA sequence and combined them with DNA methylation data. DNA methylation and gene expression showed inverse correlation. Thus, aberrant hyper DNA methylation induced suppression of key transcription factor targeted genes for the pathogenesis of EB virus positive DLBCL.
Our work provided that we could profile the pathogenesis of EB virus positive DLBCL by DNA methylation epigenotype, and they depended on if they have background of immunodeficiency or not.

Academic Significance and Societal Importance of the Research Achievements

EBウイルス陰性DLBCLは既存のR-CHOP療法で高率に治癒するのと比較して、EBウイルス陽性DLBCLは強度を上げた化学療法を用いても治療抵抗性である。本研究ではEBウイルス陽性DLBCLが免疫不全の背景の有無により異なるDNAメチル化形質を有し、それにより発症メカニズムも異なっていることを初めて証明した。
エピゲノム異常を適切に制御することで抗腫瘍効果を発揮する、DNAメチル化阻害薬等を既存の化学療法に加えて投与することにより難治性悪性リンパ腫の病勢コントロールに繋げられるような新規治療法の開発につながることが期待されるため、本研究は高い社会的意義を有すると考えられる。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (1 results) Book (1 results)

  • [Journal Article] Successful autologous stem cell transplantation for POEMS syndrome with an unusually large osteolytic lesion: A case report and literature review.2019

    • Author(s)
      Tatsuzo Mishina, Nagisa Oshima-Hasegawa, Shokichi Tsukamoto, Yurie Nagai, Miki Yamazaki, Arata Ishii, Yutaro Hino, Yusuke Isshiki, Kensuke Kayamori, Shintaro Izumi, Yusuke Takeda, Naoya Mimura, Chikako Ohwada, Masahiro Takeuchi, Sonoko Misawa, Tohru Iseki, Satoshi Kuwabara, Chiaki Nakaseko, Emiko Sakaida
    • Journal Title

      Int J Myeloma

      Volume: 9 Pages: 19-23

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Detection of MYD88 L265P mutation by next-generation deep sequencing in peripheral blood mononuclear cells of Waldenstr?m’s macroglobulinemia and IgM monoclonal gammopathy of undetermined significance2019

    • Author(s)
      Nakamura Ayako、Ohwada Chikako、Takeuchi Masahiro、Takeda Yusuke、Tsukamoto Shokichi、Mimura Naoya、Nagisa Oshima-Hasegawa、Sugita Yasumasa、Tanaka Hiroaki、Wakita Hisashi、Aotsuka Nobuyuki、Matsue Kosei、Yokote Koutaro、Ohara Osamu、Nakaseko Chiaki、Sakaida Emiko
    • Journal Title

      PLOS ONE

      Volume: 14 Issue: 9 Pages: e0221941-e0221941

    • DOI

      10.1371/journal.pone.0221941

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] ニボルマブ治療後に同種移植を行いGVHDコントロールに難渋した再発難治性ホジキン リンパ腫の一例2019

    • Author(s)
      14.石井 改、大島 渚、田波貴彬、畑中康人、滝口 純、 柴宮明日香、長井友莉恵、三科達三、山崎美貴、日野裕太郎、 木村賢二、栢森健介、高石浩司、一色佑介、塚本祥吉、 三川紫緒、竹田勇輔、三村尚也、大和田千桂子、武内正博、 井関 徹、中世古知昭、堺田惠美子
    • Organizer
      第41回日本造血細胞移植学会総会
    • Related Report
      2019 Annual Research Report
  • [Book] 加齢に伴うクローン性造血とアテローム性動脈硬化型心血管障害リスク2019

    • Author(s)
      6.大島渚、堺田惠美子、横手幸太郎
    • Total Pages
      4
    • Publisher
      メディカルレビュー社
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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