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Development of genetic diagnosis system based on gene mutation and degree of tumor differentiation for odontogenic tumor

Research Project

Project/Area Number 17K11917
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Surgical dentistry
Research InstitutionIwate Medical University

Principal Investigator

三上 俊成  岩手医科大学, 歯学部, 准教授 (40405783)

Co-Investigator(Kenkyū-buntansha) 北川 雅恵  広島大学, 病院(歯), 助教 (10403627)
岡田 康男  日本歯科大学, 新潟生命歯学部, 教授 (40267266)
Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Discontinued (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords遺伝子検査 / 歯原性腫瘍 / 次世代シーケンス / DNA解析 / transcriptome解析 / エナメル上皮腫 / heterogeneity / 原始性歯原性腫瘍 / 遺伝子診断 / 遺伝子解析
Outline of Annual Research Achievements

本研究では研究計画に基づき、「腫瘍分化度と遺伝子変異に基づいた歯原性腫瘍の臨床的遺伝子診断システムの構築」を目的として研究を行った。研究用の症例サンプルは岩手医科大学、広島大学および海外研究協力者から集めた歯原性腫瘍症例(原始性歯原性腫瘍6例、象牙質形成性幻影細胞腫2例、腺腫様歯原性腫瘍8例、エナメル上皮腫2例)を用いた。遺伝子解析には次世代シーケンスおよびPCR法を用い、タンパクの発現解析では免疫組織化学を行った。
その結果、原始性歯原性腫瘍では癌関連151遺伝子と歯の発生に関連する42遺伝子に変異は認められなかった。また正常歯胚と組織形態およびタンパク発現を比較した結果、分化度は帽状期から鐘状期後期に相当すると考えられた。象牙質形成性幻影細胞腫ではCTNNB1遺伝子に特異的な変異が認められた。腺腫様歯原性腫瘍では8例中6例にKRAS変異が認められたが、免疫染色ではMAPK伝達経路でKRASより上流のEGFRも活性化されていたことから、遺伝子変異が腫瘍化にどの程度関与しているか明らかでなかった。
培養実験では、同一患者のエナメル上皮腫組織から初代培養にて樹立されたHAM1~3細胞を用いた。HAM細胞に対して次世代シーケンスによるtranscriptome解析を行った結果、HAM1、3はE-cadherin陽性(vimentin弱陽性)であるのに対しHAM2はE-caderhin陰性(vimentin強陽性)で、HAM2は間葉系細胞の特徴を有していた。しかしながらcell migration assayやwound healing assayにおける細胞の運動能はHAM1、3の方がHAM2よりも高かった。HAM2の間葉系の特徴が由来細胞から受け継いだものか、EMTによるものかは明らかでなかった。

Report

(2 results)
  • 2018 Annual Research Report
  • 2017 Research-status Report
  • Research Products

    (17 results)

All 2018 2017 Other

All Int'l Joint Research (4 results) Journal Article (8 results) (of which Int'l Joint Research: 8 results,  Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results) Book (1 results)

  • [Int'l Joint Research] ウルグアイ共和国大学(ウルグアイ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] メトロポリタン自治大学(メキシコ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ウルグアイ共和国大学(ウルグアイ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] メトロポリタン自治大学(メキシコ)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Pathogenesis of primordial odontogenic tumour based on tumourigenesis and odontogenesis2018

    • Author(s)
      Mikami T., Bologna-Molina R., Mosqueda-Taylor A., Ogawa I., Pereira-Prado V., Fujiwara N., Pires FR., Carlos R., Takata T., Takeda Y.
    • Journal Title

      Oral Dis

      Volume: 24 Issue: 7 Pages: 1226-1234

    • DOI

      10.1111/odi.12914

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Primordial odontogenic tumor: Subepithelial expression of Syndecan-1 and Ki-67 suggests origin during early odontogenesis.2018

    • Author(s)
      Bologna-Molina R, Mikami T, Pereira-Prado V, Tapia-Repetto G, Pires FR, Carlos R, Mosqueda-Taylor A.
    • Journal Title

      Oral Diseases

      Volume: 24 Issue: 1-2 Pages: 72-77

    • DOI

      10.1111/odi.12733

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Expression of hMLH1 and hMSH2 proteins in ameloblastomas and tooth germs.2018

    • Author(s)
      Bologna-Molina R, Pereira-Prado V, Sanchez-Romero C, Tapia-Repetto G, Soria S, Hernandez M, Gonzalez-Gonzalez R, Molina-Frechero M, Mikami T.
    • Journal Title

      Medicina Oral Patologia Oral y Cirugia Bucal

      Volume: 23

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Primordial Odontogenic Tumor: A case report with histopathological analyses.2017

    • Author(s)
      Mikami T, Ohashi Y, Bologna-Molina R, Mosqueda-Taylor A, Fujiwara N, TsunodaN, Yamada H, Takeda Y.
    • Journal Title

      Pathology International

      Volume: 67 Issue: 12 Pages: 638-643

    • DOI

      10.1111/pin.12601

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ultrastructural Changes during the Life Cycle of Mycoplasma salivarium in Oral Biopsies from Patients with Oral Leukoplakia.2017

    • Author(s)
      Mizuki H, Abe R, Mikami T.
    • Journal Title

      Frontiers in Cellular and Infection Microbiology

      Volume: 7 Pages: 403-403

    • DOI

      10.3389/fcimb.2017.00403

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bone marrow-derived mesenchymal stem cells propagate immunosuppressive/anti-inflammatory macrophages in cell-to-cell contact-independent and -dependent manners under hypoxic culture2017

    • Author(s)
      Takizawa N, Okubo N, Kamo M, Chosa N, Mikami T, Suzuki K, Yokota S, Ibi M, Ohtsuka M, Taira M, Sasaki D, Yaegashi T, Ishisaki A, Kyakumoto S
    • Journal Title

      Experimental Cell Res.

      Volume: 358 Issue: 2 Pages: 411-420

    • DOI

      10.1016/j.yexcr.2017.07.014

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Immunohistochemical detection of Mycoplasma salivarium in oral lichen planus tissue.2017

    • Author(s)
      Mizuki H, Abe R, Kogi S, Mikami T.
    • Journal Title

      Journal of Oral Pathology and Medicine

      Volume: 46 Issue: 8 Pages: 649-656

    • DOI

      10.1111/jop.12568

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Primordial odontogenic tumor: An immunohistochemical profile.2017

    • Author(s)
      Bologna-Molina R, Mikami T, Pereira-Prado V, Pires FR, Carlos-Bregni R, Mosqueda-Taylor A.
    • Journal Title

      Medicina Oral Patologia Oral y Cirugia Bucal

      Volume: 22

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Microenvironment of odontogenic tumor, development and EMT2018

    • Author(s)
      Toshinari Mikami
    • Organizer
      International Association of Oral and Maxillofacial Pathologists and American Academy of Oral and Maxillofacial Pathology Joint Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Introduction of primordial odontogenic tumor: pathogenesis and clinicopathologic features2018

    • Author(s)
      Toshinari Mikami
    • Organizer
      中国遼寧省口腔医学会例会(Liaoning Stomatological Association Annual Meeting)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ポストゲノム時代の歯原性腫瘍研究 遺伝子解析から分子病理診断まで2017

    • Author(s)
      三上俊成, 岡田康男, 行森 茜, 落合隆永, 中野 敬介
    • Organizer
      第59回歯科基礎医学会学術大会アップデートシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Primordial Odontogenic Tumorの遺伝子および臨床病理学的検討2017

    • Author(s)
      三上俊成,Bologna-Molina R,武田泰典
    • Organizer
      第28回日本臨床口腔病理学会総会学術大会
    • Related Report
      2017 Research-status Report
  • [Book] 口腔病理アトラス 第3版2018

    • Author(s)
      武田泰典,三上俊成
    • Total Pages
      8
    • Publisher
      文光堂
    • Related Report
      2017 Research-status Report

URL: 

Published: 2017-04-28   Modified: 2019-12-27  

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