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消化器癌治療の標的となる新しい機能性RNAファミリーの同定と機能解明

Research Project

Project/Area Number 19659187
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionThe University of Tokushima

Principal Investigator

近藤 茂忠  The University of Tokushima, 大学院・ヘルスバイオサイエンス研究部, 助教 (40304513)

Project Period (FY) 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2007: ¥3,300,000 (Direct Cost: ¥3,300,000)
KeywordsノンコーディングRNA / 小分子RNA / IRES / 消化器癌 / 5'UTR
Research Abstract

本研究では、mRNA 5'UTRのinternal ribosome entry site(IRES)から生成する、新規小分子RNAファミリーの解明を目指し、以下の研究成果を得た。
(1)3種類の大腸癌細胞株の総RNAから精製した100-500塩基長の小分子RNAを用いて、cDNAライブラリーを作製した。このcDNAライブラリーから、IRES特異的アンチセンスプローブを用いて4種類のIRES小分子RNAを同定した。
(2)VEGF mRNAの5'UTRから、280塩基長の小分子RNAが、がん細胞株特異的に発現していること、さらに、このRNAは正常型p53をもつがん細胞で多く発現し、p53発現を抑制することを明らかにした。
(3)FGF-2、GRP78由来のIRES小分子RNAを大腸癌細胞株HCT 116細胞に過剰発現させると、細胞増殖能の充進および抗がん剤5-FUによるアポトーシスの抑制が認められた。
(4)ヒトがん組織RNAパネルを用いた検討から、ヒト胃癌と大腸癌組織で共通して高発現するIRES小分子RNA12種類(VEGF、FGF-2、UNR、c-myc、Mnt、Apaf-1、N-myc、TRKB、c-myb、Npm1、Tie2、cyclin D1)を見出した。

Report

(1 results)
  • 2007 Annual Research Report
  • Research Products

    (12 results)

All 2008 2007 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (8 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Evidence for cancer-associated expression of NADPH oxidase 1(Nox1)-based oxidase system in the human stomach.2007

    • Author(s)
      Tominaga K.
    • Journal Title

      Free Radic Biol Med. 43

      Pages: 1627-1638

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physical Exercise-Associated Gene Expression Signatures in Peripheral Blood2007

    • Author(s)
      Kawai T.
    • Journal Title

      Clin J Sport Med. 17

      Pages: 375-383

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A novel tumor-promoting function residhing in the 5'non-coding region of vascular endothelial growth factor mRNA

    • Author(s)
      Masuda K.
    • Journal Title

      PLoS Medicine. 1

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] VEGF mRNA 5'非翻訳領域による大腸がん細胞の悪性形質化の誘導2008

    • Author(s)
      増田 清士
    • Organizer
      第4回日本消化管学会総会
    • Place of Presentation
      大阪
    • Year and Date
      2008-02-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] 新機能性RNA分子による大腸がん細胞の悪性形質化の誘導2007

    • Author(s)
      増田 清士
    • Organizer
      第30回日本分子生物学会
    • Place of Presentation
      横浜
    • Year and Date
      2007-12-14
    • Related Report
      2007 Annual Research Report
  • [Presentation] Cloning of small RNAs that are overlap with 5'teminus of IRES containinggenes2007

    • Author(s)
      Gunawardane L.S.
    • Organizer
      第三回COE国際シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2007-12-03
    • Related Report
      2007 Annual Research Report
  • [Presentation] TNF-a Is a Potent Activator for the Nox1-Based Oxidase System in Large Intestinal Epithelial Cells.2007

    • Author(s)
      Rokutan K
    • Organizer
      Digestive Disease Week 2007
    • Place of Presentation
      Washigon,D.C.
    • Year and Date
      2007-05-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Potential roles of the Nox family in intestinal inflammation in symposium on intestinal inflammation2007

    • Author(s)
      Rokutan K
    • Organizer
      Digestive Disease Week 2007
    • Place of Presentation
      Washington,D.C.
    • Year and Date
      2007-05-23
    • Related Report
      2007 Annual Research Report
  • [Presentation] Novel Function of Stress-lnducible Tra2 Beta mRNA Isoform Including EXON22007

    • Author(s)
      Kawai T
    • Organizer
      Digestive Disease Week 2007
    • Place of Presentation
      Washington,D.C.
    • Year and Date
      2007-05-22
    • Related Report
      2007 Annual Research Report
  • [Presentation] 5'-untranslated RNA of the human VEGF transcript is a novel regulatory RNA that promotes tumor malignancy of human colon cancer cells2007

    • Author(s)
      Masuda K.
    • Organizer
      Digestive Disease Week 2007
    • Place of Presentation
      Washington,D.C.
    • Year and Date
      2007-05-21
    • Related Report
      2007 Annual Research Report
  • [Presentation] IL-18 Regulates Both Constitutive and Stress-lnduced Expression of MUC2 Gene in the Mouse Colon.2007

    • Author(s)
      Nishida K
    • Organizer
      Digestive Disease Week 2007
    • Place of Presentation
      Washington, D.C.
    • Year and Date
      2007-05-20
    • Related Report
      2007 Annual Research Report
  • [Patent(Industrial Property Rights)] 特許権2007

    • Inventor(s)
      近藤 茂忠
    • Industrial Property Rights Holder
      徳島大学
    • Industrial Property Number
      2007-233316
    • Filing Date
      2007-09-07
    • Related Report
      2007 Annual Research Report

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

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