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Exhaustive search for onco-suppressor genes induced by Egr-1 and cause-analysis of their repression in association with carcinogenesis

Research Project

Project/Area Number 19590358
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Human pathology
Research InstitutionYokohama City University

Principal Investigator

YAZAWA Takuya  Yokohama City University, 大学院・医学研究科, 准教授 (50251054)

Co-Investigator(Kenkyū-buntansha) OKUDELA Koji  横浜市立大学, 医学部, 助教 (10326027)
SHIMOYAMADA Hiroaki  横浜市立大学, 医学部, 助教 (60381472)
SATO Hanako  聖マリアンナ医科大学, 医学部, 助教 (60438132)
KITAMURA Hitoshi  横浜市立大学, 大学院・医学研究科, 教授 (20094302)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
KeywordsEgr-1 / 癌遺伝子 / 癌抑制遺伝子 / 癌化 / 肺癌 / エピジェネティクス / プロモーター / VEGF-A / メチレーション / エピジェネティックス / エピジェネティック
Research Abstract

肺癌細胞にEgr-1を強制発現させることにより、IGFBP-4, IGFBP-2, NGFI-A binding protein-2(NAB2), Vascular Endothelial Growth Factor-A (VEGF-A)が誘導された。それぞれの遺伝子プロモーターに存在するCpGアイランドのメチル化状態について肺癌組織を用いて検討したところ、IGFBP-4遺伝子およびIGFBP-2遺伝子プロモーターのメチル化に伴いその発現が減弱していることが明らかになった。一方、Egr-1, NAB2, VEGF-A遺伝子プロモーターには全くメチル化が認められなかった。更に、VEGF-Aプロモーターの下流域に存在するEgr-1結合サイトにEgr-1が直接結合すること、肺癌細胞におけるVEGF-Aの発現はEgr-1とNAB2の発現バランスにより制御されていることも本研究により明らかになった。以上より、Egr-1により誘導される分子には癌化によるエピジェネティックな変化を受け発現量が変化するもの、及び癌化によるエピジェネティックな影響を全く受けずNAB2との発現バランスにより発現制御されているものが存在することが判明した

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (17 results)

All 2009 2008 2007

All Journal Article (12 results) (of which Peer Reviewed: 4 results) Presentation (5 results)

  • [Journal Article] Neuroendocrine cancer-specific up-regulating mechanism of insulin-like growth factor binding protein-2 in small cell lung cancer2009

    • Author(s)
      Yazawa T, Sato H, Shimoyamada H, Okudela K, Woo T, Tajiri M, Ogura T, Ogawa N, Suzuki T, Mitsui H, Ishii J, Miyata C, Sakaeda M, Goto K, Kashiwagi K, Masuda M, Takahashi T, Kitamura H.
    • Journal Title

      Am J Pathol (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Down-regulation of DUSP6 expression in lung cancers-its mechanism and potential role in carcinogenesis2009

    • Author(s)
      Okudela K, Yazawa T, Woo T, Sakaeda M, Ishii J, Shimoyamada H, Sato H, Tajiri M, Ogawa N, Masuda M, Takahashi T, Sugimura H, Kitamura H.
    • Journal Title

      Am J Pathol (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] A case of epithelial-myoepithelial carcinoma of the bronchus-a review of reported cases and a comparison with other salivary gland-type carcinomas of the bronchus2009

    • Author(s)
      Okudela K, Yazawa T, Tajiri M, Omori T, Takahashi K, Woo T, Shimoyamada H, Ogawa N, Kitamura H.
    • Journal Title

      Pathol Res Pract (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Significant association between EGFR-mutated lung adenocarcinoma and past illness from gastric cancer or uteinr myoma : its implication in carcinogenesis2009

    • Author(s)
      Okudela K, Woo T, Yazawa T, Ogawa N, Tajiri M, Masuda M, Kitamura H.
    • Journal Title

      Lung Cancer (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Prognoxtic value of KRAS mutations and Ki-67 expression in stage I lung adenocarcinomas2009

    • Author(s)
      Woo T, Okudela K, Yazawa T, Wada N, Ogawa N, Ishiwa N, Tajiri M, Rino Y, Kitamura H, Masuda M.
    • Journal Title

      Lung Cancer (in press)

    • Related Report
      2008 Final Research Report
  • [Journal Article] Role of 3' -phosphoinositides in oncogenic KRAS-induced modulation of shape and motility of airway epithelial cells2009

    • Author(s)
      Okudela K, Yazawa T, Suzuki T, Sugimura H, Kitamura H.
    • Journal Title

      Pathol Int 59

      Pages: 28-37

    • NAID

      10027378932

    • Related Report
      2008 Final Research Report
  • [Journal Article] Small cell lung cancer : significance of RB alterations and TTF-1 expression in its carcinogenesis, phenotype, and biology2009

    • Author(s)
      Kitamura H, Yazawa T, Sato H, Okudela K, Shimoyamada H.
    • Journal Title

      Endocr Pathol 20

      Pages: 101-107

    • Related Report
      2008 Final Research Report
  • [Journal Article] Role of 3'-phosphoinositides in oncogenic KRAS-induced modulation of shape and motility of airway epithelial cells.2009

    • Author(s)
      Okudela Koji
    • Journal Title

      Pathology International 59

      Pages: 28-37

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Small cell lung cancer : significance of RB alterations and TTF-1 expression in its carcinogenesis, phenotype and biology.2009

    • Author(s)
      Kitamura Hitoshi
    • Journal Title

      Endocrine Pathology (In press)

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Molecular and genetic pathogenesis of lung cancer : differences between small-cell and non-small-cell carcinomas.2008

    • Author(s)
      Kitamura Hitoshi
    • Journal Title

      The Open Pathology Journal 2

      Pages: 106-114

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PIK3CA mutation and amplification in human lung cancer2007

    • Author(s)
      Okudela K, Suzuki M, Kageyama S, Bunai T, Nagura K, Igarashi H, Takamochi K, Suzuki K, Yamada T, Niwa H, Ohashi R, Ogawa H, Mori H, Kitamura H, Kaneko T, Tsuneyoshi T, Sugimura H.
    • Journal Title

      Pathol Int 57

      Pages: 664-671

    • NAID

      10021233920

    • Related Report
      2008 Final Research Report
  • [Journal Article] PIK3CA mutation and amplification in human lung cancer.2007

    • Author(s)
      Okudela K, Kitamura H, et. al.
    • Journal Title

      Pathology International 57巻

      Pages: 664-671

    • NAID

      10021233920

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 肺癌細胞におけるThyroid Transcription Factor-1 (TTF-1)発現とTTF-1 promoterのメチレーションとの関連2008

    • Author(s)
      佐藤華子
    • Organizer
      第97回日本病理学会総会
    • Place of Presentation
      金沢
    • Year and Date
      2008-05-17
    • Related Report
      2008 Final Research Report
  • [Presentation] 肺癌細胞におけるThyroid Transcription Factor-l(TTF-l)発現とTTF-1 promoterのメチレーションとの関連2008

    • Author(s)
      佐藤 華子
    • Organizer
      第97回日本病理学会総会
    • Place of Presentation
      金沢
    • Year and Date
      2008-05-17
    • Related Report
      2008 Annual Research Report
  • [Presentation] 肺小細胞癌におけるIGFBP-2過剰発現メカニズムの解析および腫瘍マーカーとしての有用性に関する基礎的検討2008

    • Author(s)
      矢澤卓也
    • Organizer
      第97回日本病理学会総会
    • Place of Presentation
      金沢
    • Year and Date
      2008-05-15
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] Growth regulation via insulin-like growth factor binding protein-4 and -2 in lung epithelial cells and cancers2007

    • Author(s)
      Yazawa T.
    • Organizer
      12^<th> world conference on lung cancer
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2007-09-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Growth Regulation via Insulin-like Growth Factor Binding Protein-4 and-2 in lung epithelial cells and cancers.2007

    • Author(s)
      Yazawa T, Sato H, et. al.
    • Organizer
      12th World Conference on Lung Cancer
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2007-09-04
    • Related Report
      2007 Annual Research Report

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

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