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ヒト骨髄間葉系幹細胞由来の不死化細胞とがん幹細胞

Research Project

Project/Area Number 19659324
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field General surgery
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) 山岡 裕明  広島大学, 病院, 講師 (90311810)
Project Period (FY) 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2007: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywords移植・再生医療 / 間葉系幹細胞 / 発生・分化 / 癌化 / マイクロアレイ
Research Abstract

ヒト骨髄30検体から間葉系幹細胞(hMSC)を分離し、培養、分化抑制因子LIF、bFGF添加で未分化状態で増殖を行った。またhMSC由来の不死化クローンhMSC-3、-4,-5,-6と、さらにhTERT(human telomerase reverse transcriptase)導入でテロメラーゼを強制発現した株hMSC-3h,-4h,-5h,-6h,を作成した。網羅的遺伝子発現解析では、未分化細胞ではゲノムの10%程度の遺伝子のみ発現し、分化とともに多くの遺伝子が発現した。一方、不死化細胞株、がん幹細胞株で有意に発現した遺伝子を200程度抽出し、定量PCRで有意な遺伝子12種を選別した。また、hMSCのテロメアは、約40kbと伸長し、テロメラーゼ活性はなく、テロメラーゼ非依存伸長機構(ALT)を有していた。また、hTERTを導入したhMSC-株はテロメア長、増殖能、形態学的変化も顕著な差はなく、通常のhMSCと同様に、脂肪細胞、骨芽細胞、筋肉細胞へ分化誘導しえた。また、分化誘導とともに、テロメア長が短縮することも確認した。しかし、NOD/SCIDマウスにhMSC細胞株、hTERT導入hMSC細胞株を接種すると、いずれも腫瘍を形成し、hTERT導入細胞株4株中2株で、浸潤、遠隔転移を認め明らかにがん化していた。以上からhMSCから得られた不死化細胞株、がん幹細胞株の可塑性が確認され、未分化な増殖状態に保つシグナルとして、Wntシグナルなど3経路が明らかになり、hTERTを導入によってさらに活性化する遺伝子から、不死化獲得機構、がん化の機構の解明が可能であり、その候補遺伝子を8種見出した。これらからhMSCの長期培養法による悪性転換の指標を検討中である。また、作製したがん幹細胞株は、Cancer stem cellのモデルとして今後の研究ツールとなった。

Report

(1 results)
  • 2007 Annual Research Report
  • 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

    • Related Report
      2007 Annual Research Report
    • 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)
      Fumoto S, et. al.
    • Journal Title

      International Journal of Oncology 32・2

      Pages: 413-423

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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)

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • NAID

      10027859099

    • Related Report
      2007 Annual Research Report
    • 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

    • NAID

      120000876074

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • 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

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [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
    • Related Report
      2007 Annual Research Report
  • [Presentation] Interferon induced transmembrane protein 1(IFITM1) 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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [Presentation] POT1 transfection may cause shortening of telomere 3' overhang increasing chemoresistance 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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [Presentation] Relationship between p16 inactivation and telomerase activation mechanisms in lung 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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [Presentation] 小児固形悪性腫瘍にわ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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [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
    • Related Report
      2007 Annual Research Report
  • [Book] 小児がんの診断と治療2007

    • Author(s)
      檜山英三, 他
    • Publisher
      診断と治療社
    • Related Report
      2007 Annual Research Report
  • [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
    • Filing Date
      2007-05-29
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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