• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Elucidating the mechanism of tumor resolution in methotrexate-related lymphoproliferative disease

Research Project

Project/Area Number 17K18335
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hematology
Tumor diagnostics
Research InstitutionJapanese Foundation for Cancer Research

Principal Investigator

Dobashi Akito  公益財団法人がん研究会, がん研究所 分子標的病理プロジェクト, 研究員 (40772249)

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: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsメトトレキサート関連リンパ増殖性疾患 / 関節リウマチ / リンパ腫 / 全エクソンシーケンス / 全ゲノムバイサルファイトシーケンス / メトトレキサート / リンパ増殖性疾患
Outline of Final Research Achievements

Methotrexate-associated lymphoid proliferative disease (MTX-LPD) occurs in patients receiving MTX. This disease may show spontaneous remission after stopping the MTX treatment. Therefore, we conducted a comprehensive genetic analysis of cases requiring chemotherapy and those in remission after stopping MTX treatment. The remission mechanism of MTX-LPD was determined by comparing the chemotherapy cases and remission cases. Our findings showed that, the genetic background of MTX-LPD, which required chemotherapy, was similar to that of general diffuse large B-cell lymphoma. However, the genetic background of the two types of diseases was found to be different.

Academic Significance and Societal Importance of the Research Achievements

化学療法が必要であった症例とMTXの中止だけで寛解が得られた症例の遺伝子網羅的な解析による比較を行い、MTX-LPDの自然消退機序の解明を行った。その結果、化学療法が必要であった症例とMTXの中止だけで寛解が得られた症例の間で異なる遺伝子プロファイルがみられることがわかった。また、化学療法が必要であったMTX-LPDは、一般的なDLBCLと比較すると、同様の遺伝子背景も認められるが、一部に異なった遺伝子の変化があることが判明した。これらの違いを指標として用いることで、診断時にMTX中止のみとするか、化学療法を行うかを見積もることが可能となる可能性がある。

Report

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

    (8 results)

All 2019 2018 2017

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (2 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Frequent structural variations involving programmed death ligands in Epstein-Barr virus-associated lymphomas2019

    • Author(s)
      Kataoka Keisuke, Miyoshi Hiroaki, Sakata Seiji, Dobashi Akito, Couronne Lucile, Kogure Yasunori, Sato Yasuharu, Nishida Kenji, Gion Yuka, Shiraishi Yuichi, Tanaka Hiroko, et al
    • Journal Title

      Leukemia

      Volume: Epub ahead of print Issue: 7 Pages: 1687-1699

    • DOI

      10.1038/s41375-019-0380-5

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] TP53 and OSBPL10 alterations in diffuse large B-cell lymphoma: prognostic markers identified via exome analysis of cases with extreme prognosis.2018

    • Author(s)
      Dobashi A, Togashi Y, Tanaka N, Yokoyama M, Tsuyama N, Baba S, Mori S, Hatake K, Yamaguchi T, Noda T, Takeuchi K.
    • Journal Title

      Oncotarget

      Volume: 9 Issue: 28 Pages: 19555-19568

    • DOI

      10.18632/oncotarget.24656

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] MYB and MYBL1 in adenoid cystic carcinoma: diversity in the mode of genomic rearrangement and transcripts.2018

    • Author(s)
      Togashi Y, Dobashi A, Sakata S, Sato Y, Baba S, Seto A, Mitani H, Kawabata K, Takeuchi K
    • Journal Title

      Modern pathology

      Volume: 印刷中 Issue: 6 Pages: 934-946

    • DOI

      10.1038/s41379-018-0008-8

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Epstein-Barr virus-negative extranodal “true” natural killer-cell lymphoma harbouring a KDM6A mutation2017

    • Author(s)
      Tsuyama Naoko、Asaka Reimi、Dobashi Akito、Baba Satoko、Mishima Yuko、Ueda Kyoko、Oguchi Masahiko、Tsuji Hideki、Hatake Kiyohiko、Takeuchi Kengo
    • Journal Title

      Hematological Oncology

      Volume: 36 Issue: 1 Pages: 328-335

    • DOI

      10.1002/hon.2459

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anaplastic large cell lymphoma: pathology, genetics, and clinical aspects2017

    • Author(s)
      Tsuyama Naoko、Sakamoto Kana、Sakata Seiji、Dobashi Akito、Takeuchi Kengo
    • Journal Title

      Journal of Clinical and Experimental Hematopathology

      Volume: 57 Issue: 3 Pages: 120-142

    • DOI

      10.3960/jslrt.17023

    • NAID

      130006286290

    • ISSN
      1346-4280, 1880-9952
    • Related Report
      2017 Research-status Report
    • Open Access
  • [Presentation] Sequence Read Archiveデータの再解析による新たな遺伝子異常の検出2017

    • Author(s)
      土橋映仁
    • Organizer
      NGS現場の会 第五回研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 「17p欠損を伴うTP53変異」および「OSBPL10変異」はdiffuse large B-cell lymphomaの独立した予後因子である2017

    • Author(s)
      土橋映仁、冨樫由紀、横山雅大、津山直子、馬場郷子、坂田征士、森誠一、畠清彦、山口俊晴、野田哲生、竹内賢吾
    • Organizer
      第57回日本リンパ網内系学会総会
    • Related Report
      2017 Research-status Report
  • [Patent(Industrial Property Rights)] びまん性大細胞型B細胞リンパ腫の予後予測因子、及び予後予測方法2018

    • Inventor(s)
      土橋 映仁, 竹内 賢吾
    • Industrial Property Rights Holder
      土橋 映仁, 竹内 賢吾
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Acquisition Date
      2018
    • Related Report
      2018 Research-status Report
    • Overseas

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi