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子宮体癌発癌機構におけるRas/エストロゲン経路の果たす役割-癌幹細胞の観点から

Research Project

Project/Area Number 18659488
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Obstetrics and gynecology
Research InstitutionKyushu University

Principal Investigator

加藤 聖子  Kyushu University, 生体防御医学研究所, 講師 (10253527)

Co-Investigator(Kenkyū-buntansha) 和氣 徳夫  九州大学, 大学院・医学研究院, 教授 (50158606)
浅野間 和夫  九州大学, 生体防御医学研究所, 助手 (30380413)
Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2007: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2006: ¥2,000,000 (Direct Cost: ¥2,000,000)
Keywords癌 / 細胞・組織 / シグナル伝達
Research Abstract

本年度は、まず、ラット不死化子宮内膜細胞株RENT4を用いてHoechst33342の取り込みの低いside population(SP)細胞とnon-SP細胞を分離した(RENT4-SP or-NSP細胞)。この細胞を正常子宮内膜幹細胞のモデルとして、癌遺伝子の変異が幹細胞に入った場合と分化細胞に入った場合の造腫瘍能や生物学的特性を地較した
方法と結果1)RENT4細胞にSP細胞は存在し、不均等分裂の性質を示した。2)SP細胞とNSP細胞それぞれに活性化型[^<12>Val]K-ras遺伝子を挿入し、SP-K12V細胞、NSP-K12V細胞を樹立し、ヌードマウス上の腫瘍形成能をそれぞれのmock細胞と比較した。SP-K12V細胞は8匹中3匹に周囲組織への浸潤能の高い腫瘍を形成したのに対し、NSP-K12V細胞は8匹中1匹に被膜化された小さな腫瘍を形成した。ヘマトキシレン・エオジン染色をすると、前者は腫瘍細胞の他に間質や細胞外基質が豊富な腫瘍であったのに対し後者は腫瘍細胞が主体であった。3)SP-V、SP-K12V細胞は、NSP-V、NSP-K12V細胞に比べ、Estrogen Receptor(ER)αの発現が高かった。SP-K12V細胞は他の細胞に比べ、estrogenおよび血清刺激下ERの転写能の亢進がみられた。
結論1)癌遺伝子変異がSP細胞に入った場合とNSP細胞に入った場合の腫瘍形成能および腫瘍の性質、estrogen反応に差がみられた。2)子宮内膜幹細胞にK-ras遺伝子の変異が入った場合、estrogen依存性の造腫瘍能を獲得する可能性が示唆された。

Report

(2 results)
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (14 results)

All 2008 2007 2006

All Journal Article (12 results) Presentation (2 results)

  • [Journal Article] Medroxyprogesterone acetate inhibits proliferation of colon cancer cell lines by modulating cell cycle related protein expression2008

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

      Menopause (In press)

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Characterization of side population cells in human normal endometrium2007

    • Author(s)
      Kato K, et. al.
    • Journal Title

      Human Reproduction 22

      Pages: 1214-1223

    • Related Report
      2007 Annual Research Report
  • [Journal Article] An inhibitory effect on cell proliferation by blockage of the MAPK/Estrogen Receptor/MDM2 signal pathway in gynecologic cancer2007

    • Author(s)
      Suga S, et. al.
    • Journal Title

      Gynecologic Oncology 105

      Pages: 341-350

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Specific apotosis induction in HPV-positive cervical carcinoma cells by photodynamic antisense regulation2007

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

      oligonucleotides 17

      Pages: 66-79

    • Related Report
      2007 Annual Research Report
  • [Journal Article] ビスフォスフォネート(アレンドロネート)の癌細胞への効果の検討2007

    • Author(s)
      加藤 聖子, 他
    • Journal Title

      Osteoporosis Japan 15

      Pages: 88-90

    • Related Report
      2007 Annual Research Report
  • [Journal Article] HOP/NECC1,a novel regulator of mouse trophoblast differentiation2007

    • Author(s)
      Asanoma K, et. al.
    • Journal Title

      J Biol Chem 17

      Pages: 24065-24074

    • Related Report
      2007 Annual Research Report
  • [Journal Article] Characterization of side population cells (SP cells) in human normal endometrial cells2007

    • Author(s)
      Kato K et al.
    • Journal Title

      Human Reproduction (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] An inhibitory effect on cell proliferation by blockage of the MAPK / Estrogen Receptor / MDM2 signal pathway in gynecologic cancer.2007

    • Author(s)
      Suga S et al.
    • Journal Title

      Gynecologic Oncology (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Specific apotosis induction in HPV-positive cervical carcinoma cells by photodynamic antisense regulation.2007

    • Author(s)
      Yamayoshi A et al.
    • Journal Title

      Oligonucleotides (in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] The Human HYMAI/PLAGL1 differentiallymethylated region acts as an imprint controlregion in mice.2006

    • Author(s)
      Arima T et al.
    • Journal Title

      Gnomics 88

      Pages: 650-658

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Loss of the maternal imprint in Dnmt3L(mat-/-)mice leads to a differentiation defect in the extraembryonic tissue.2006

    • Author(s)
      Arima T et al.
    • Journal Title

      Dev Biol 297

      Pages: 361-373

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Adenovirus-mediated calponin h1 gene therapy directed against peritoneal Dissemination of ovarian cancer : bifunctional therapeutic effects on peritoneal cell layer and cancer cells2006

    • Author(s)
      Ogura T ey al.
    • Journal Title

      Clin Cancer Res 12

      Pages: 5216-5223

    • Related Report
      2006 Annual Research Report
  • [Presentation] 子宮体癌細胞のstem like cellの同定と生物学的特性の解析2007

    • Author(s)
      加藤 聖子, 他
    • Organizer
      第59回日本産科婦人科学会学術講演会
    • Place of Presentation
      京都市
    • Related Report
      2007 Annual Research Report
  • [Presentation] Endometrial cancer side population cells show the phenotype of cancer stem-like cell2007

    • Author(s)
      Kato K, Wake N
    • Organizer
      第66回日本癌学会学術総会
    • Place of Presentation
      横浜市
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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