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消化管間質腫瘍におけるマイクロRNA発現異常の解明

Research Project

Project/Area Number 19659188
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionSapporo Medical University

Principal Investigator

篠村 恭久  Sapporo Medical University, 医学部, 教授 (90162619)

Co-Investigator(Kenkyū-buntansha) 山本 博幸  札幌医科大学, 医学部, 講師 (40332910)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2008: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywords消化管間質腫瘍 / GIST / マイクロ RNA / 標的遺伝子 / Gene expression / マイクロRNA / hypermethylation / hypomethylation / LINE-1
Research Abstract

Gastrointestinal stromal tumor (GIST)は、消化管間葉系腫瘍のなかで最も頻度の高い腫瘍である。KITやPDGFRA遺伝子変異だけでは、GISTの多様な分子病態を説明する事はできない。近年、マイクロRNA (以下miRNA)の役割が注目されているが、GISTにおけるmiRNA発現異常やその標的遺伝子に関しては全く報告がない。本研究では、GISTにおけるmiRNA発現異常を解析し、その病態を解明することを目的とする。本年度は、胃GISTのmiRNA発現の解析を系統的に行った。BioAnalyzerでRNA qualityをチェック後、470種類のヒトmiRNAプローブを搭載したmicroarrayとハイブリダイゼーションした後、データスキャンを行った。興味深いことに、コントロールに比べGISTでは多くのmiRNA発現が上昇あるいは低下していることを明らかにした。RT-PCRによる発現の確認を行い、臨床データとmiRNA発現の相関を認めた。現在、Gene expression microarray解析を行い、miRNAの標的遺伝子の変動があるか解析中である。本研究によりGISTにおけるmiRNA発現異常の生物学的意義、臨床的意義が明らかになると考えられた。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (18 results)

All 2008

All Journal Article (8 results) (of which Peer Reviewed: 8 results) Presentation (10 results)

  • [Journal Article] LINE-1 hypomethylation is associated with increased CpG island methylation in Helicobacter pylori-related enlarged fold gastritis.2008

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

      Cancer Epidemiol. Biomarker. Prev. 17

      Pages: 2555-2564

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Overexpression of the receptor tyrosine kinase EphA4 in human gastric cancers.2008

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

      World J. Gastroenterol. 14

      Pages: 5650-5656

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Epigenetic silencing of microRNA-34b/c and BTG4 is associated with CpG island methylation in colorectal cancer.2008

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

      Cancer Res. 68

      Pages: 4123-4132

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A requirement for DICER to maintain full promoter CpG Island hypermethylation in human cancer cells.2008

    • Author(s)
      Ting A., et al.
    • Journal Title

      Cancer Res. 68

      Pages: 2670-2675

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cytoplasmic RASSF2A is a proapoptotic mediator whose expression is epigenetically silenced in gastric cancer.2008

    • Author(s)
      Maruyama R., et al.
    • Journal Title

      Carcinogenesis 29

      Pages: 1312-1318

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Frequent epigenetic inactivation of SFRP genes in hepatocellular carcinoma.2008

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

      J. Gastroenterol. 43

      Pages: 378-389

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phenotypic alteration of interstitial cells of Cajal in idiopathic sigmoid megacolon.2008

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

      J. Gastroenterol. 43

      Pages: 626-631

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Histone deacetylase inhibitor FK288enhances adenovirus-mediated p53 family gene therapy in cancer models.2008

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

      Mol. Cancer Ther. 7

      Pages: 779-787

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] Treatment with a new IGF-1 receptor tyrosine kinase inhibitor for human colorectal carcinomas.2008

    • Author(s)
      Adachi Y., et al.
    • Organizer
      The 36^<th> Meeting of the International Society of Oncology and BioMarkers
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-10-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Anti-tumor efficacy of anti-FGFR1 monoclonal antibody for human hepatoma cells.2008

    • Author(s)
      Sasaki S., et al.
    • Organizer
      The 36^<th> Meeting of the International Society of Oncology and BioMarkers
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-10-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Line-1 hypomethylation is associated with increased CpG island methylation in H. pylori-related enlarged fold.2008

    • Author(s)
      Hosokawa M., et al.
    • Organizer
      The 36^<th> Meeting of the International Society of Oncology and BioMarkers
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-10-09
    • Related Report
      2008 Annual Research Report
  • [Presentation] Epigenetic silencing of mircroRNA-34b/c and BTG4 is associated with CpG island hypermethylation in Colorec-tal cancer.2008

    • Author(s)
      Suzuki H., et al.
    • Organizer
      The 36^<th> Meeting of the International Society of Oncology and BioMarkers
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-10-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] The gene silencing due to hepermethylation of promoter CpG island tend to be induced in the common target Genes for both EZH2 and DNMTs.2008

    • Author(s)
      Taniguchi H., et al.
    • Organizer
      The 36^<th> Meeting of the International Society of Oncology and BioMarkers
    • Place of Presentation
      Tokyo
    • Year and Date
      2008-10-08
    • Related Report
      2008 Annual Research Report
  • [Presentation] Blockade of insulin-like growth factor-I receptor is auseful anticancer therapeutic for esophageal squamous cell careinoma.2008

    • Author(s)
      Yamamoto H., et al.
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-21
    • Related Report
      2008 Annual Research Report
  • [Presentation] Relationship between laterally spreading Type, JC Virus and methylator phenotype in colorectal adenoma.2008

    • Author(s)
      Yamamoto H., et al.
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-20
    • Related Report
      2008 Annual Research Report
  • [Presentation] Epigenetic downregulation of the hedgehog interacting protein gene is frequently involved in gastrointestinal tumorigenesis.2008

    • Author(s)
      Yamamoto H., et al.
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] High levels of aberrant DNA methylation in Helicobacter pylori-related pangastritis.2008

    • Author(s)
      Yamamoto E., et al.
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] Glypican-3, in conjunction with MMPs Wnt signaling molecules, plays an important role in the progression of hepatocellular carcinoma.2008

    • Author(s)
      Miyamoto C., et al.
    • Organizer
      Digestive Disease Week 2008
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2008-05-18
    • Related Report
      2008 Annual Research Report

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

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