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2009 Fiscal Year Annual Research Report

口腔癌における新規癌抑制遺伝子INGファミリーの機能解明

Research Project

Project/Area Number 21592326
Research InstitutionOkayama University

Principal Investigator

長塚 仁  Okayama University, 大学院・医歯薬学総合研究科, 教授 (70237535)

Co-Investigator(Kenkyū-buntansha) 福島 邦博  岡山大学, 大学病院, 講師 (50284112)
玉村 亮  岡山大学, 大学院・医歯薬学総合研究科, 助教 (00403494)
片瀬 直樹  岡山大学, 大学院・医歯薬学総合研究科, 助教 (30566071)
Keywords口腔癌 / 癌抑制遺伝遣子 / ING / 機能解析 / 扁平上皮癌 / p53
Research Abstract

癌は, 癌遺伝子および癌抑制遺伝子と呼ばれる複数の遺伝子異常が生じることにより発生する。特に癌抑制遺伝子の機能低下は癌の発生に重要であり、癌抑制遺伝子の発見・機能解析は癌病態解明において重要な意義を有する。本研究の目的は、癌抑制遺伝子と考えられているING遺伝子ファミリーの機能解析による遺伝子ネットワークの解明である。ネットワークの解明により現在再発・転移が多く、治療が困難である口腔癌について分子標的治療の基礎を構築する一助となる。
本年度は、ING遺伝子ファミリーにおいて詳細が不明であるING2遺伝子に焦点を絞り検討を行った。具体的には、口腔扁平上皮癌におけるING2遺伝子のLOH解析を行うとともに、その欠失とTP53遺伝子変異および臨床データとの関連を検討した
口腔扁平上皮癌80症例において、ING2特異的プライマーを用いてLOH解析を行った結果、55症例中30症例と高頻度(54.6%)のLOHが認められた。TP53のmutation解析では、検索可能であった68症例中26症例(38.2%)においてmutationを認めた。統計学的解析からING2のLOHとTP53遺伝子変異との間には明らかな相関は認められなかった。ING2のLOHと臨床病理データとの比較から、TNht分類のT因子、放射線治療の有無、化学療法の有無との間に相関を認め、進行期(Late T, T3-T4)において有意に高いLOHを認めた。また、LOHを認めた患者は無疾患生存率が短い傾向を示した。
以上のことから、ING2は口腔扁平上皮癌における新規癌抑制遺伝子である可能性が示唆され、癌の病期と関連することが示唆された

  • Research Products

    (28 results)

All 2010 2009

All Journal Article (16 results) (of which Peer Reviewed: 16 results) Presentation (12 results)

  • [Journal Article] Frequent allelic loss of Dkk-1 locus(10q11.2)is related with low distant metastasis and better prognosis in head and neck squamous cell carcinomas.2010

    • Author(s)
      Katase N
    • Journal Title

      Cancer Invest. 28

      Pages: 103-110

    • Peer Reviewed
  • [Journal Article] An unsuspected ameloblastoma in the subpontic region of the mandible with consideration of pathogenesis from the radiographic course.2010

    • Author(s)
      Siar CH
    • Journal Title

      Eur J Med Res. 15

      Pages: 135-138

    • Peer Reviewed
  • [Journal Article] Clinicopathological significance of the CRTC3-MAML2 fusion transcript in mucoepidermoid carcinoma.2009

    • Author(s)
      Nakayama T
    • Journal Title

      Mod Pathol. 22

      Pages: 1575-1581

    • Peer Reviewed
  • [Journal Article] Involvement of focal adhesion kinase in the progression and prognosis of gastrointestinal stromal tumors.2009

    • Author(s)
      Kamo N
    • Journal Title

      Hum Pathol. 40

      Pages: 1643-1649

    • Peer Reviewed
  • [Journal Article] Angiogenic squamous dysplasia-like phenomenon in oral epithelial precursor lesions.2009

    • Author(s)
      Siar CH
    • Journal Title

      Eur J Med Res. 14

      Pages: 315-319

    • Peer Reviewed
  • [Journal Article] Prognostic significance of p27Kip1, Ki-67, and CRTC1-MAML2 fusion transcript in mucoepidermoid carcinoma : a molecular and clinicopathologic study of 101 cases.2009

    • Author(s)
      Miyabe S
    • Journal Title

      J Oral Maxillofac Surg. 67

      Pages: 1432-1441

    • Peer Reviewed
  • [Journal Article] Loss of Heterozygosity at the 9p21-24 Region and Identification of BRM as a Candidate Tumor Suppressor Gene in Head and Neck Squamous Cell Carcinoma.2009

    • Author(s)
      Gunduz E
    • Journal Title

      Cancer Invest. 27

      Pages: 661-668

    • Peer Reviewed
  • [Journal Article] Potential usage of ING family members in cancer diagnostics and molecular therapy.2009

    • Author(s)
      Gunduz M
    • Journal Title

      Curr Drug Targets. 10

      Pages: 465-476

    • Peer Reviewed
  • [Journal Article] Secreted frizzled related protein(sFRP)-2 inhibits bone formation and promotes cell proliferation in ameloblastoma.2009

    • Author(s)
      Sathi GA
    • Journal Title

      Oral Oncol. 45

      Pages: 856-860

    • Peer Reviewed
  • [Journal Article] Increased mRNA expression of ADAMTS metalloproteinases in metastaticfoci of head and neck cancer.2009

    • Author(s)
      Demircan K
    • Journal Title

      Head Neck. 31

      Pages: 793-801

    • Peer Reviewed
  • [Journal Article] Dynamic contrast-enhanced magnetic resonance imaging for estimating tumor proliferation and microvessel density of oral squamous cell carcinomas.2009

    • Author(s)
      Unetsubo T
    • Journal Title

      Oral Oncol. 45

      Pages: 621-626

    • Peer Reviewed
  • [Journal Article] Frequent deletion of ING2 locus at 4q35.1 associates with advanced tumorstage in head and neck squamous cell carcinoma.2009

    • Author(s)
      Borkosky SS
    • Journal Title

      J Cancer Res Clin Oncol. 135

      Pages: 703-713

    • Peer Reviewed
  • [Journal Article] T-lymphocyte maturation-associated protein gene as a candidate metastasis suppressor for head and neck squamous cell carcinomas.2009

    • Author(s)
      Beder LB
    • Journal Title

      Cancer Sci. 100

      Pages: 873-880

    • Peer Reviewed
  • [Journal Article] Immunohistochemical Detection of Erythropoietin, Platlet-derived growth factor and their receptors in ameloblastomas.2009

    • Author(s)
      Yin X
    • Journal Title

      Journal of Hard Tissue Biology 18

      Pages: 19-26

    • Peer Reviewed
  • [Journal Article] Wingless-type protein-1(Wnt-1)expression in primary conventional and unicystic ameloblastomas and their recurrent tumors.2009

    • Author(s)
      Chuah KS
    • Journal Title

      Journal of Hard Tissue Biology 18

      Pages: 63-70

    • Peer Reviewed
  • [Journal Article] Heparanase and its related molecules in odontogenic tumors.2009

    • Author(s)
      Nagatsuka H
    • Journal Title

      Oral Med Pathol. 13

      Pages: 81-89

    • Peer Reviewed
  • [Presentation] Wnt antagonist sFRP-2 inhibits bone formation and promotes cell proliferation in ameloblastoma.2009

    • Author(s)
      Gulsan Ara Sathi
    • Organizer
      The IX International Meeting on Cancer Induced Bone Disease
    • Place of Presentation
      Virginia
    • Year and Date
      20091028-20091031
  • [Presentation] Notch receptors and their ligands in ameloblastomas.2009

    • Author(s)
      Siar CH
    • Organizer
      FDI World Dental Congress
    • Place of Presentation
      Singapore
    • Year and Date
      20090902-20090905
  • [Presentation] 頭頸部扁平上皮癌におけるDkk-3のヘテロ接合性消失解析2009

    • Author(s)
      片瀬直樹
    • Organizer
      第20回日本臨床口腔病理学会総会・学術大会
    • Place of Presentation
      札幌
    • Year and Date
      20090730-20090731
  • [Presentation] The role of codon 72 polymorphism at p53 tumor suppressor gene in head and neck cancer prognosis.2009

    • Author(s)
      Esra Gunduz
    • Organizer
      The Mediterranean Medical Genetics Meeting
    • Place of Presentation
      Ankara
    • Year and Date
      20090628-20090701
  • [Presentation] Notch signaling molecules in ameloblastoma.2009

    • Author(s)
      Siar CH
    • Organizer
      66th MDAAGM & MDA/FDI Scientific Convention & Trade Exhibition
    • Place of Presentation
      Penang
    • Year and Date
      20090626-20090628
  • [Presentation] Heparanase and cyclooxygenase-2(cox-2)gene and protein expressions during progression of oral dysplasia to carcinoma.2009

    • Author(s)
      Siar CH
    • Organizer
      66th MDAAGM & MDA/FDI Scientific Convention & Trade Exhibition
    • Place of Presentation
      Penang
    • Year and Date
      20090626-20090628
  • [Presentation] Identification of BRM as a candidate tumor suppressor from 9p24 region in head and neck squamous cell carcinomas.2009

    • Author(s)
      Gunduz E
    • Organizer
      Third International Congress of Molecular Medicine
    • Place of Presentation
      Istanbul
    • Year and Date
      20090505-20090508
  • [Presentation] Expression pattern of stem cell markers in squamous cell carcinoma.2009

    • Author(s)
      Han Liu
    • Organizer
      第30回岡山歯学会総会・学術集会
    • Place of Presentation
      岡山
    • Year and Date
      2009-11-08
  • [Presentation] 扁平上皮癌におけるCD44とABCG2の発現2009

    • Author(s)
      劉涵
    • Organizer
      第68回日本癌学会学術総会
    • Place of Presentation
      横浜
    • Year and Date
      2009-10-02
  • [Presentation] エナメル上皮腫の組織学的多様性について2009

    • Author(s)
      長塚仁
    • Organizer
      第20回日本臨床口腔病理学会総会・学術大会
    • Place of Presentation
      札幌
    • Year and Date
      2009-07-30
  • [Presentation] Allelic loss of the ING gene family correlates with aggressive behavior in ameloblastoma.2009

    • Author(s)
      藤井昌江
    • Organizer
      第98回日本病理学会総会
    • Place of Presentation
      京都
    • Year and Date
      2009-05-03
  • [Presentation] Three regions are preferentially deleted in 1p36 region in oral squamous cellcarcinoma.2009

    • Author(s)
      Mathieu Lefeuvre
    • Organizer
      第98回日本病理学会総会
    • Place of Presentation
      京都
    • Year and Date
      2009-05-03

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Published: 2011-06-16   Modified: 2016-04-21  

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