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Stratification of hardly classifiable brain tumors by combining detailed pathological and genetic analysis

Research Project

Project/Area Number 19K07411
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49020:Human pathology-related
Research InstitutionGunma University

Principal Investigator

Yokoo Hideaki  群馬大学, 大学院医学系研究科, 教授 (40282389)

Co-Investigator(Kenkyū-buntansha) 信澤 純人  群馬大学, 大学院医学系研究科, 准教授 (80635318)
松村 望  群馬大学, 大学院医学系研究科, 講師 (20729511)
伊古田 勇人  群馬大学, 医学部附属病院, 准教授 (90420116)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords人体病理学 / 分子病理学 / 神経病理学 / 脳腫瘍 / 悪性グリオーマ
Outline of Research at the Start

適切な診断と正確な予後予測は病理診断に課せられた大きな使命である。しかし、脳腫瘍においては今なお診断困難な症例が少なくない。すべての脳腫瘍の患者さんが最適な治療を受けられるようにするために、病理医の努力の余地はまだ十分に残されている。今回の申請では分類困難あるいは希少な脳腫瘍に光を当てて、膨大な累積脳腫瘍検体から該当例を抽出し、そこに分子遺伝学的プロファイリングを加えて腫瘍概念の輪郭や生物学的特徴を明らかにしていく。

Outline of Final Research Achievements

It is a social requirement of the current era to refine the pathological diagnosis of brain tumors based on molecular genetic findings and to appropriately stratify individual cases, and pathology that is in a position to bridge the basics and clinical practice should play a big role regarding this. The applicants have established a technique for performing genome-wide analysis from a limited size of formalin-fixed paraffin-embedded (FFPE) sections, and have conducted basic research on divergent brain tumors. In this application, we shed light on difficult-to-classify or rare brain tumors, extracted relevant cases from a huge number of cumulative brain tumor samples, and added molecular genetic profiling to clarify the outline and biological characteristics of the tumor concept. On the other hand, at present, there are some cases where proper stratification is difficult, and we proposed the concept of a framework for properly handling such cases.

Academic Significance and Societal Importance of the Research Achievements

広く海外を見渡すと、地域単位、国単位、あるいは国際間で脳腫瘍研究に関する多施設連携プロジェクトが展開されており、申請者はこの研究課題を本邦を代表する脳腫瘍の研究プロジェクトに発展させる責務があると考えて取り組んできた。申請者の所属施設は半世紀にわたり脳腫瘍症例の収集を続けており、研究規模、研究戦略、研究成果は海外勢と比較しても決して引けを取らない水準にある。これをさらに推し進めて、累積希少症例の遺伝子データマイニングと高精細な病理診断を融合させ、我が国を代表する脳腫瘍の研究拠点形成を目指すという当初の目的はある程度達成できたと考える。引き続き発展を目指してまいりたい。

Report

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

    (7 results)

All 2021 2020 2019 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Remarks (1 results)

  • [Journal Article] Subtype-dependent difference of glucose transporter 1 and hexokinase II expression in craniopharyngioma: an immunohistochemical study2021

    • Author(s)
      Mukada Naoto、Tosaka Masahiko、Matsumura Nozomi、Yamaguchi Rei、Aihara Masanori、Isoda Koji、Higuchi Tetsuya、Tsushima Yoshito、Yokoo Hideaki、Yoshimoto Yuhei
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 126-126

    • DOI

      10.1038/s41598-020-80259-4

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ependymoma-like tumor with mesenchymal differentiation harboring C11orf95-NCOA1/2 or -RELA fusion: A hitherto unclassified tumor related to ependymoma2021

    • Author(s)
      Tomomasa R, Arai Y, Kawabata-Iwakawa R, Fukuoka K, Nakano Y, Hama N, Nakata S, Suzuki N, Ishi Y, Tanaka S, Takahashi JA, Yuba Y, Shiota M, Natsume A, Kurimoto M, Shiba Y, Aoki M, Nabeshima K, Enomoto T, Inoue T, Fujimura J, Kondo A, Yao T, Okura N, Hirose T, Sasaki A, Hirato J, Yokoo H, Nobusawa S.
    • Journal Title

      Brain Pathol .

      Volume: 1 Issue: 3 Pages: 1-9

    • DOI

      10.1111/bpa.12943

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Desmoplastic myxoid tumor, SMARCB1-mutant: a new variant of SMARCB1-deficient tumor of the central nervous system preferentially arising in the pineal region.2021

    • Author(s)
      Matsumura N, Goda N, Yashige K, Kitagawa M, Yamazaki T, Nobusawa S, Yokoo H.
    • Journal Title

      Virchows Arch.

      Volume: 479 Issue: 4 Pages: 835-839

    • DOI

      10.1007/s00428-020-02978-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CNS low-grade diffusely infiltrative tumors with INI1 deficiency, possessing a high propensity to progress to secondary INI1-deficient rhabdoid tumors.2020

    • Author(s)
      Nobusawa S, Nakata S, Nakano Y, Kawamura A, Yoshida M, Tamura A, Hasegawa D, Kosaka Y, Ito I, Watanabe R, Oishi T, Hayashi N, Ishikawa E, Sakamoto N, Okura N, Murakami C, Ichimura K, Hirato J, Yokoo H.
    • Journal Title

      Am J Surg Pathol

      Volume: 44 Issue: 11 Pages: 1459-1468

    • DOI

      10.1097/pas.0000000000001520

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Secondary INI1-deficient rhabdoid tumors of the central nervous system: analysis of four cases and literature review2020

    • Author(s)
      Nobusawa S, Nakata S, Yoshida Y, Yamazaki T, Ueki K, Amano K, Yamamoto J, Miyahara M, Sugai T, Nakazato Y, Hirato J, Yokoo H.
    • Journal Title

      Virchows Archiv

      Volume: - Issue: 5 Pages: 763-772

    • DOI

      10.1007/s00428-019-02686-7

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Clinicopathological characteristics of circumscribed high-grade astrocytomas with an unusual combination of BRAF V600E, ATRX, and CDKN2A/B alternations2019

    • Author(s)
      Murakami Chiaki、Yoshida Yuka、Yamazaki Tatsuya、Yamazaki Ayako、Nakata Satoshi、Hokama Yohei、Ishiuchi Shogo、Akimoto Jiro、Shishido-Hara Yukiko、Yoshimoto Yuhei、Matsumura Nozomi、Nobusawa Sumihito、Ikota Hayato、Yokoo Hideaki
    • Journal Title

      Brain Tumor Pathology

      Volume: 36 Issue: 3 Pages: 103-111

    • DOI

      10.1007/s10014-019-00344-z

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Remarks] 群馬大学大学院医学系研究科病態病理学分野

    • URL

      http://humanpathol.dept.med.gunma-u.ac.jp/index.php

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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