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Identification of Ral kinase and characterization of its role in tumorigenesis

Research Project

Project/Area Number 24700961
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Tumor biology
Research InstitutionTohoku University

Principal Investigator

SHIRAKAWA Ryutaro  東北大学, 加齢医学研究所, 助教 (50581039)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsRal / 低分子量GTP結合蛋白質 / Ras / 低分子量GTP結合タンパク質
Research Abstract

The small GTPase RalA regulates many cellular processes such as cell proliferation, migration, membrane traffic, and tumorigenesis. Accumulating evidence shows that activation of RalA GTPase is essential for oncogenic Ras-induced human cell tumorigenesis. However, the molecular mechanism by which RalA regulates tumorigenesis remains elusive. I tried to identify RalA effector proteins in rat brain cytosol and succeeded in purifying a RalA effector complex using several chromatography steps including ammonium sulphate precipitation, ion-exchange chromatograhpy, and RalA affinity chromatography. This effector complex may be involved in RalA-dependent tumorigenesis.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (10 results)

All 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (4 results) Remarks (3 results)

  • [Journal Article] Downregulation of Ral GTPase-activating-protein causes tumor invasion and metastasis of bladder cancer2012

    • Author(s)
      R.Saito
    • Journal Title

      Oncogene

      Volume: (未定)(In press) Issue: 7 Pages: 894-902

    • DOI

      10.1038/onc.2012.101

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Rab-genome analysis of Weibel Palade body exocytosis reveals an unexpected linkbetween exocytic and endocytic RabGTPases2012

    • Author(s)
      S. Zografou, D. Basagiannis, A.Papafotika, R. Shirakawa, H. Horiuchi, D. Auerbach, M. Fukuda, S. Christoforidis
    • Journal Title

      J Cell Sci 25

      Volume: 125巻 Pages: 4780-4790

    • DOI

      10.1242/jcs.104174

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Munc13-4 reconstitutes Ca^<2+>-dependent SNARE-mediated membrane fusion2012

    • Author(s)
      K Boswell, D James, J Esquibel, S Bruinsma, R Shirakawa, H Horiuchi, T Martin*
    • Journal Title

      J Cell Biol 197

      Volume: 197 Issue: 2 Pages: 301-312

    • DOI

      10.1083/jcb.201109132

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] 血小板の低分子量GTP結合蛋白質活性の直接的評価2013

    • Author(s)
      白川龍太郎
    • Organizer
      第79回日本生化学会東北支部会例会
    • Place of Presentation
      仙台
    • Year and Date
      2013-05-11
    • Related Report
      2013 Final Research Report
  • [Presentation] RalGAPの発現喪失は膀胱癌の浸潤・転移を促進する2012

    • Author(s)
      白川龍太郎
    • Organizer
      第71回日本癌学会学術総会
    • Place of Presentation
      札幌
    • Year and Date
      2012-09-20
    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] RalGAPの発現低下と膀胱癌悪性化2012

    • Author(s)
      白川龍太郎
    • Organizer
      第78回日本生化学会東北支部会例会
    • Place of Presentation
      山形
    • Year and Date
      2012-05-26
    • Related Report
      2013 Final Research Report
  • [Presentation] 血小板の低分子量GTP結合蛋白質活性の直接的評価

    • Author(s)
      白川龍太郎、矢尾板信裕、木村朋寛、堀内久徳
    • Organizer
      第79回日本生化学会東北支部会例会
    • Place of Presentation
      仙台
    • Related Report
      2013 Annual Research Report
  • [Remarks]

    • URL

      http://www2.idac.tohoku.ac.jp/dep/mcb/index.html

    • Related Report
      2013 Final Research Report
  • [Remarks] 東北大学加齢医学研究所基礎加齢研究分野

    • URL

      http://www2.idac.tohoku.ac.jp/dep/mcb/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 東北大学加齢医学研究所(堀内研究室)

    • URL

      http://www2.idac.tohoku.ac.jp/dep/mcb/index.html

    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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