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TMA-IHC・FISH法を用いた脳腫瘍の新たな分類、有意な疾患群の抽出の試み

Research Project

Project/Area Number 16790201
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Human pathology
Research InstitutionThe University of Tokyo

Principal Investigator

柴原 純二  東京大学, 医学部附属病院, 助手 (60334380)

Project Period (FY) 2004 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2004: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywords脳腫瘍 / 病理 / 免疫組織化学 / 組織マイクロアレイ
Research Abstract

昨年度までに作成した、星細胞系腫瘍(grade 2-4)、乏突起膠細胞系腫瘍(grade 2-3)、上衣系腫瘍(grade 2-3)計120例を含む、神経膠腫の組織マイクロアレイを用い、下記の免疫組織学的検討を行った。
発生・分化の標識蛋白の診断への有用性を検討する目的で、星細胞のlineage markerとして知られるGFAP、YKL-40、Sox2、乏突起膠細胞のlineage markerとして知られるOlig2の免疫組織学的染色を行った。既知の通り、GFAPは星細胞系腫瘍、混合型膠腫の星細胞成分を特異的に標識した。また、YKL-40も星細胞系腫瘍に高い特異性を示した。中でも膠芽腫(grade 4)で高率に陽性となり、退形成性乏突起膠腫との鑑別、星細胞系腫瘍における悪性度評価に有用であると考えられた。SOX2はほぼ全症例で発現が確認され、星細胞系腫瘍に対する特異性は確認されなかった。Olig2は乏突起膠細胞系腫瘍を高感度に標識したが、陽性率、染色強度で劣る傾向はあるものの、星細胞系腫瘍、上衣系腫瘍でも陽性となり、乏突起膠細胞系腫瘍に対する特異性は示されなかった。
癌関連遺伝子についてはMAPK, AKT経路に焦点をあて、各遺伝子経路の活性化状態と、腫瘍の組織型、悪性度との相関を検討する目的で、関連蛋白のリン酸化抗体を用いた免疫組織学的検討を行った。膠芽腫の一群でMAPK, AKT経路の活性化が確認されており、今後症例を追加し、予後、治療反応性との相関を検討の予定である。

Report

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

    (11 results)

All 2006 2005 2004

All Journal Article (11 results)

  • [Journal Article] Podoplanin is expressed in subsets of tumors of the central nervous system.2006

    • Author(s)
      Shibahara J., Kashima T., Kikuchi Y, Kunita A., Fukayama M.
    • Journal Title

      Virchows Archiv 448・4

      Pages: 105-112

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Papillary glioneuronal tumor with minigemistocytic components and increased proliferative activity.2006

    • Author(s)
      Ishizawa T, Komori T, Shibahara J., Ishizawa K, Adachi J. et al.
    • Journal Title

      Human Pathology 37・5

      Pages: 627-630

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Sarcomatous transformation of clival chordoma after charged-particle radiotherapy. Report of two cases.2006

    • Author(s)
      Hara T, Kawahara N., Tsuboi K., Shibahara J., Ushiku T., Kirino T.
    • Journal Title

      Journal of Neurosurgery 105・1

      Pages: 136-141

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Podoplanin is expressed in subsets of tumors of the central nervous System.2006

    • Author(s)
      Shibahara J, Kashima T, Kikuchi Y, Kunita A, Fukayama M
    • Journal Title

      Virchows Archiv (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Secondary glioblastoma with advanced neuronal phenotype.2005

    • Author(s)
      Shibahara J, Fukayama M
    • Journal Title

      Virchows Archiv 447・3

      Pages: 665-668

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Diffusion tensor tractography of gliomatosis cerebri : fiber tracking through the tumor.2005

    • Author(s)
      Akai H, Mori H, Aoki S, Masutani Y, Kawahara N, Shibahara J, et al.
    • Journal Title

      Journal of Computer Assisted Tomography 29・1

      Pages: 127-129

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Radiation-induced spinal cord cavernous malformation. Case report.2005

    • Author(s)
      Yoshino Y, Morita A, Shibahara J, Kirino T
    • Journal Title

      Journal of Neurosurgery (Pediatrics) 102・1

      Pages: 101-104

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Intracranial extracerebral glioneuronal heterotopia. Case report and review of the literature.2005

    • Author(s)
      Oya S, Kawahara N, Aoki S, Hayashi N, Shibahara J, Izumi M, et al.
    • Journal Title

      Journal of Neurosurgery (Pediatrics) 102・1

      Pages: 105-112

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Spinal intramedullary ependymal cyst : a case report and review of the literature.2005

    • Author(s)
      Saito K, Morita A, Shibahara J, Kirino T
    • Journal Title

      Acta Neurochirurgica (in press)

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Extradural neurenteric cyst of the cerebellopontine angle. Case report.2004

    • Author(s)
      Inoue T, Kawahara N, Shibahara J, Masumoto T, Usami K, Kirino T.
    • Journal Title

      Journal of Neurosurgery 100・6

      Pages: 1091-1093

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Papillary neuroepithelial tumor of the pineal region. A case report.2004

    • Author(s)
      Shibahara J, Todo T, Morita A, Mori H, Aoki S, Fukayama M
    • Journal Title

      Acta Neuropathologica 108・4

      Pages: 337-340

    • Related Report
      2004 Annual Research Report

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

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