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2007 Fiscal Year Annual Research Report

神経芽腫のがん幹細胞研究:分化・退縮と発生・増殖・進展の二極化規定因子か?

Research Project

Project/Area Number 19390449
Research InstitutionHiroshima University

Principal Investigator

檜山 英三  Hiroshima University, 自然科学研究支援開発センター, 教授 (00218744)

Co-Investigator(Kenkyū-buntansha) 外丸 祐介  広島大学, 自然科学研究支援開発センター, 准教授 (90309352)
檜山 桂子  広島大学, 原爆放射線医科学研究所, 准教授 (60253069)
山岡 裕明  広島大学, 病院, 講師 (90311810)
Keywords発生・分化 / 発現制御 / マイクロアレイ / 小児癌 / 幹細胞
Research Abstract

病理分類と予後の判明している神経芽腫のうち、初代培養にて腫瘍細胞のみ選別しえた51検体と樹立株11株と、これらが由来した腫瘍の凍結保存検体で解析を行った。
神経芽腫培養細胞でのがん幹細胞の検討:初代培養細胞を用いて、human telomerase reverse transcriptase発現と表面抗原CD133を指標に、幹細胞分画を7株で確認した。これらの細胞株全株がソフトアガーでコロニーを形成し、免疫不全マウス(NOD/SCIDマウス)で10^4個接種にて腫瘍を形成した。CD133, nestin, c-kit発現を解析し、他の細胞株との差異から幹細胞とprogenitor cellさらに分化細胞の分別を行い、幹細胞の豊富な細胞分画からDNA、 RNAを抽出した。
網羅的遺伝子解析:予後良好で初代培養株が分化した正常幹細胞由来の腫瘍と、細胞株が樹立された予後不良な腫瘍と、各々約41、10腫瘍を用いて、遺伝子変化、遺伝子発現を、SNPsアレイと発現解析アレイにて検索した。この結果、前者の腫瘍は、染色体数の変化はあるものの増幅、欠失はまれで、一方がん幹細胞由来腫瘍は、一部領域の増幅、欠失を認め、その領域の遺伝子発現に変化を認めた。また、16腫瘍をmicroRNA解析用アレイで解析し、6腫瘍をプロモターアレイでメチル化解析し、がん幹細胞由来の腫瘍では特異的に発現しているmicroRNAを6種見出し、プロモターのメチル化が高度に進んでいる領域を同定した。microRNAはそのターゲット遺伝子、遺伝子異常のある領域やメチル化された領域の遺伝子について、専用ソフトでネットワーク解析を行ない、予後と関連して発現が上昇あるいは低下している遺伝子を検討中で、これらからがん幹細胞を有する腫瘍の発症、悪性度に関与している特異的な遺伝子を判別し、本腫瘍の新たな分子診断法を確立する予定である。

  • Research Products

    (33 results)

All 2008 2007

All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (16 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Effectiveness of screening for neuroblastoma at 6 months of age: a retrospective population-based cohort study2008

    • Author(s)
      Hiyama E, et. al.
    • Journal Title

      Lancet 371

      Pages: 1173-1180

    • Peer Reviewed
  • [Journal Article] Selection of a novel drug-response predictor in esophageal cancer: A novel screening method using microarray and identification of IFITM1 as a potent marker gene of CDDP response2008

    • Author(s)
      FumotoS, et. al.
    • Journal Title

      International Journal of Oncology 32・2

      Pages: 413-423

    • Peer Reviewed
  • [Journal Article] Functional analysis of Src homology 3-encoding exon(exon 2)of p130Cas in primary fibroblasts derived from exon 2-specific knockout mice2008

    • Author(s)
      Tazaki T, et. al.
    • Journal Title

      Genes to Cells 13・2

      Pages: 145-157

    • Peer Reviewed
  • [Journal Article] Human mismatch repair gene, MLH1, is transcriptionally repressed by the hypoxia-inducible transcription factors, DEC1 and DEC22008

    • Author(s)
      Nakamura H, et. al.
    • Journal Title

      Oncogene (in press)

    • Peer Reviewed
  • [Journal Article] Telomere shortening and telomerase expression during multistage carcinogenesis of intraductal papillary mucinous neoplasms of pancreas2008

    • Author(s)
      Hashimoto Y, et. al.
    • Journal Title

      Journal of Gastrointestinal Surgery 12・1

      Pages: 17-29

    • Peer Reviewed
  • [Journal Article] Detection of human telomerase reverse transcriptase(hTERT)expression in tissue and pancreatic juice from pancreatic cancer2008

    • Author(s)
      Hashimoto Y, et. al.
    • Journal Title

      Surgery 143・1

      Pages: 113-125

    • Peer Reviewed
  • [Journal Article] Heterogeneous subgroups in human neuroblastoma for clinically relevant risk stratification2008

    • Author(s)
      Hiyama E, et. al.
    • Journal Title

      Pediatric Surgery International 23・11

      Pages: 1051-1058

    • Peer Reviewed
  • [Journal Article] Telomere and telomerase in stem cells2007

    • Author(s)
      Hiyama E, et. al.
    • Journal Title

      British Journal of Cancer 96・7

      Pages: 1020-1024

    • Peer Reviewed
  • [Journal Article] Mixed ductal-endocrine carcinoma derived from intraductal papillary mucinous neoplasm(IPMN)of the pancreas identified by human telomerase reverse transcriptase(hTERT)expression2007

    • Author(s)
      Hashimoto Y, et. al.
    • Journal Title

      Journal of Surgical Oncology 97・5

      Pages: 469-475

    • Peer Reviewed
  • [Journal Article] EGFR activating aberration occurs independently of other genetic aberrations or telomerase activation in adenocarcinoma of the lung2007

    • Author(s)
      Arifin M, et. al.
    • Journal Title

      Oncology Reports 17・6

      Pages: 1405-1411

    • Peer Reviewed
  • [Journal Article] Telomere length and telomerase activity in extra-abdominal desmoid tumors2007

    • Author(s)
      Matsuo T, et. al.
    • Journal Title

      Anticancer Research 27・1A

      Pages: 411-415

    • Peer Reviewed
  • [Journal Article] Differential regulation of DEC2 among hypoxia-inducible genes in endometrial carcinomas2007

    • Author(s)
      Yunokawa M, et. al.
    • Journal Title

      Oncology Reports 17・4

      Pages: 871-878

    • Peer Reviewed
  • [Journal Article] Telomerase activity in giant cell tumors of bone2007

    • Author(s)
      Matsuo T, et. al.
    • Journal Title

      Annals of Surgical Oncology 14・10

      Pages: 2896-2902

    • Peer Reviewed
  • [Journal Article] Reciprocal expression of CCAAT/enhancer binding proteins alpha and beta in hepatoblastomas and its prognostic significance2007

    • Author(s)
      Tomizawa M, et. al.
    • Journal Title

      Oncology Reports 17・2

      Pages: 341-344

    • Peer Reviewed
  • [Journal Article] 生後6ヵ月神経芽細胞腫マススクリーニングの成果からの神経芽腫診療への提言2007

    • Author(s)
      檜山英三, 他.
    • Journal Title

      日本マス・スクリーニング学会誌 17・1

      Pages: 49-56

    • Peer Reviewed
  • [Presentation] 肝芽腫のメチル化異常と臨床病理学的因子との関連2007

    • Author(s)
      本多昌平, 他.
    • Organizer
      第23回日本小児がん学会学術集会
    • Place of Presentation
      宮城県仙台市
    • Year and Date
      20071214-16
  • [Presentation] Development of Telomerase-Positive Lung Adenocarcinomas without Inactivation of p16/Rb Pathway2007

    • Author(s)
      Hiyama K, et. al.
    • Organizer
      An AACR Special Conference in Cancer research The Role of Telomeres and Telomerase in Cancer Research
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      20071206-09
  • [Presentation] Immortalization and Cancer Formation of Human Mesenchymal Stem Cells2007

    • Author(s)
      Hiyama E, et. al.
    • Organizer
      An AACR Special Conference in Cancer research The Role of Telomeres and Telomerase in Cancer Research
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      20071206-09
  • [Presentation] Screening at months of age reduced neuroblastoma incidence and mortality elder age: population based cohort in Japan2007

    • Author(s)
      Hiyama E, et. al.
    • Organizer
      SIOP2007
    • Place of Presentation
      Munbai, India
    • Year and Date
      20071029-1103
  • [Presentation] 小児固形悪性腫瘍におけるトランスレーショナルリサーチの試み2007

    • Author(s)
      檜山英三
    • Organizer
      第45回日本癌治療学会総会
    • Place of Presentation
      京都府京都市
    • Year and Date
      20071024-26
  • [Presentation] RASSF1A hypermethlation may be a novel molecular-genetic marker for treatment outcome in hepatoblastoma.2007

    • Author(s)
      Honda S, et. al.
    • Organizer
      第66回 日本癌学会学術総会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      20071003-05
  • [Presentation] A novel hypoxia inducible gene, human EFEMP2, decreased p53 activity in cancer cells.2007

    • Author(s)
      Nakamura H, et. al.
    • Organizer
      第66回 日本癌学会学術総会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      20071003-05
  • [Presentation] Relationship between p16 inactivation and telomerase activation mechanisms in Iung adenocarcinoma2007

    • Author(s)
      Arfin M, et. al.
    • Organizer
      第66回 日本癌学会学術総会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      20071003-05
  • [Presentation] A gene identified as a novel tumor suppressor gene in esophageal squamous cell carcinoma2007

    • Author(s)
      Fumoto S, et. al.
    • Organizer
      第66回 日本癌学会学術総会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      20071003-05
  • [Presentation] 小児癌新規マーカーのLC-MS法による探索 神経芽細胞腫患者尿のカテコールアミン一斉定量法の開発より2007

    • Author(s)
      参川優, 他.
    • Organizer
      日本分析化学会第56年会
    • Place of Presentation
      徳島県徳島市
    • Year and Date
      20070919-21
  • [Presentation] マス・スクリーニング施行世代における1歳代神経芽腫の特徴 本邦登録症例と欧米との比較検討2007

    • Author(s)
      米田光宏, 他.
    • Organizer
      第23回日本小児外科学会総会
    • Place of Presentation
      東京都新宿区
    • Year and Date
      20070601-03
  • [Presentation] Role of telomere and telomerase in human mesenchymal stem cells2007

    • Author(s)
      Hiyama E, et. al.
    • Organizer
      CSHL Meeting on TELOMERES & TELOMERASE
    • Place of Presentation
      New York, USA
    • Year and Date
      20070502-06
  • [Presentation] POT1 transfection may cause shortening of telomere 3'overhang increasing chem oresistance and alternative lengthening of telomeres in cancer cell2007

    • Author(s)
      Hiyama K, et. al.
    • Organizer
      CSHL Meeting on TELOMERES & TELOMERASE
    • Place of Presentation
      New York, USA
    • Year and Date
      20070502-06
  • [Presentation] Exploring genes that regulate cellular proliferation and immortalization of human somatic cells2007

    • Author(s)
      Hiyama K, et. al.
    • Organizer
      AACR Annual Meeting 2007
    • Place of Presentation
      Los Angeles, USA
    • Year and Date
      20070414-18
  • [Presentation] Interferon induced transmembrane protein 1(IFITMI)gene is a novel candidate as a CDDP sensitivity marker in esophageal squamous cell carcinoma(ESCC)2007

    • Author(s)
      Fumoto S, et. al.
    • Organizer
      AACR Annual Meeting 2007
    • Place of Presentation
      Los Angeles, USA
    • Year and Date
      20070414-18
  • [Presentation] Genome-wide single nucleotide polymorphism microarray mapping for prediction of outcome of neuroblastoma patients2007

    • Author(s)
      Hiyama E, et. al.
    • Organizer
      AACR Annual Meeting 2007
    • Place of Presentation
      Los Angeles, USA
    • Year and Date
      20070414-18
  • [Book] 小児がんの診断と治療2007

    • Author(s)
      檜山英三, 他
    • Total Pages
      163-167
    • Publisher
      診断と治療社
  • [Patent(Industrial Property Rights)] 組織移植における生着率増強剤2007

    • Inventor(s)
      檜山英三, 他.
    • Industrial Property Rights Holder
      広島大学
    • Industrial Property Number
      2007-086662
    • Filing Date
      2007-05-29

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Published: 2010-02-04   Modified: 2016-04-21  

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