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Stringency of germ and somatic stem cell lineages in budding tunicates

Research Project

Project/Area Number 19570208
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Developmental biology
Research InstitutionKochi University

Principal Investigator

KAWAMURA Kazuo  Kochi University, 教育研究部・自然科学系, 教授 (30136361)

Co-Investigator(Kenkyū-buntansha) SUNANAGA Takeshi  高知大学, 教育研究部・自然科学系, 助教 (20448393)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2007: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords群体ボヤ / 出芽 / ヘモブラスト / 生殖系列 / 体細胞系列 / 幹細胞 / Vasa / Piwi / RNA干渉
Research Abstract

出芽ホヤ生殖系列の再生を実行している間葉系幹細胞ヘモブラストを、分子レベルでcharacterizeし、RNA干渉法で機能を検討した。生殖系列幹細胞は、Vasa, Piwi, Myc, RACK1を強く、Nanosを弱く発現した。VasaとRACK1は、生殖腺形成に必須である。Piwiは、Vasaより広い範囲の生殖系列細胞で発現した。本研究結果は、Vasa^-, Piwi^+ヘモブラストが生殖系列の供給源(前駆細胞)であり、ホヤ生殖系列は、Piwiに代表される分子によって体細胞系列から仕切られていることを支持した。

Report

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

    (22 results)

All 2008 2007 Other

All Journal Article (12 results) (of which Peer Reviewed: 7 results) Presentation (7 results) Book (2 results) Remarks (1 results)

  • [Journal Article] The role of Nanos homologue in gametogenesis and blastogenesis with special reference to male germ cell formation in the colonial ascidian, Botryllus primigenus2008

    • Author(s)
      Sunanaga, T., Satoh, M. and Kawamura, K.
    • Journal Title

      Develop. Biol. 324

      Pages: 31-40

    • Related Report
      2008 Final Research Report
  • [Journal Article] Cell proliferation dynamics of somatic and germline tissues during zooidal life span in the colonial tunicate Botryllus primigenus2008

    • Author(s)
      Kawamura, K., Tachibana, M. and Sunanaga, T.
    • Journal Title

      Dev. Dyn. 237

      Pages: 1812-1825

    • NAID

      120001592098

    • Related Report
      2008 Final Research Report
  • [Journal Article] Multipotent epithelial cells in the process of regeneration and asexual reproduction in colonial tunicates2008

    • Author(s)
      Kawamura, K., Sugino, Y.M., Sunanaga, T. and Fujiwara, S.
    • Journal Title

      Develop.Growth Differ. 50

      Pages: 1-11

    • NAID

      10020274014

    • Related Report
      2008 Final Research Report
  • [Journal Article] Cell proliferation dynamics of somatic and germline tissues during zooidal life span in the colonial tunicate Botryllus primigenus.2008

    • Author(s)
      Kawamura, K., Tachibana, M., Sunanaga, T
    • Journal Title

      Developmental Dynamics 237

      Pages: 1812-1825

    • NAID

      120001592098

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The role of Nanos homologue in gametogenesis and blastogenesis with special reference to male germ cell formation in the colonial ascidian, Botryllus primigenus.2008

    • Author(s)
      Sunanaga, T., Satoh, M., Kawamura, K.
    • Journal Title

      Developmental Biology 324

      Pages: 31-40

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multipotent epithelial cells in the process of regeneration and asexual reproduction in colonial tunicates.2008

    • Author(s)
      Kawamura, K., Sugino, Y. M., Sunanaga, T., Fujiwara, s.
    • Journal Title

      Development Growth and Differentiation 50

      Pages: 1-11

    • NAID

      10020274014

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multipotent epithelial cells in the process of regeneration and asexual reproduction in colonial tunicates2008

    • Author(s)
      Kawamura, K.
    • Journal Title

      Development Growth and Differentiation 50

      Pages: 1-11

    • NAID

      10020274014

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cell proliferation dynamics of somatic and germline tissues during zooidal life span in the colonial tunicate Botryllus primigenus2008

    • Author(s)
      Kawamura, K.
    • Journal Title

      Developmental Dynamics 237(印刷中)

    • NAID

      120001592098

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Involvement of vasa homologue in switching from somatic stem cells to germline cells in the budding tunicate2007

    • Author(s)
      Sunanaga, T., Watanabe, A. and Kawamura, K.
    • Journal Title

      Polyandrocarpa misakiensis. Dev. Genes Evol 217

      Pages: 1-11

    • Related Report
      2008 Final Research Report
  • [Journal Article] Body muscle cell differentiation from coelomic stem cells in colonial tunicates2007

    • Author(s)
      Sugino, Y.M., Matsumura, M. and Kawamura, K.
    • Journal Title

      Zool. Sci. 24

      Pages: 542-546

    • NAID

      120001158291

    • Related Report
      2008 Final Research Report
  • [Journal Article] Involvement of vasa homologue in switching from somatic stem cells to germline cells in the budding tunicate, Polyandrocarlpa misakiensis2007

    • Author(s)
      Sunanaga, T.
    • Journal Title

      Developlment Genes and Evolution 217

      Pages: 1-11

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Body muscle cell differentiation from coelomic stem cells in colonial tunicates2007

    • Author(s)
      Sugino, Y.M.
    • Journal Title

      Zoological Science 24

      Pages: 542-546

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 出芽ホヤにおける加齢のリセット機構2008

    • Author(s)
      西岡宗一郎・上野愛・川村和夫
    • Organizer
      第31回日本分子生物学会年会
    • Place of Presentation
      兵庫県神戸市
    • Year and Date
      2008-12-11
    • Related Report
      2008 Final Research Report
  • [Presentation] 出芽ホヤにおける加齢のリセット機構2008

    • Author(s)
      西岡宗一郎, 上野愛, 川村和夫
    • Organizer
      日本分子生物学会第31回大会
    • Place of Presentation
      兵庫県、神戸ポートアイランド
    • Year and Date
      2008-12-11
    • Related Report
      2008 Annual Research Report
  • [Presentation] Postembryonic germline specification in colonial ascidian, Botryllus primigenus.2008

    • Author(s)
      Sunanaga, T., Inubushi, H., Kawamura, K.
    • Organizer
      日本発生生物学会第41回大会
    • Place of Presentation
      徳島県、徳島文化会館
    • Year and Date
      2008-05-29
    • Related Report
      2008 Annual Research Report
  • [Presentation] Stem cells and transdifferentiation in colonial tunicates2008

    • Author(s)
      Kawamura, K. and Sunanaga, T.
    • Organizer
      日本発生生物学会第41回大会
    • Place of Presentation
      徳島県徳島市
    • Year and Date
      2008-05-28
    • Related Report
      2008 Final Research Report
  • [Presentation] Postembryonic germline specification in colonial ascidian, Botryllus primigenus2008

    • Author(s)
      Sunanaga, T., Inubushi, H. and Kawamura, K.
    • Organizer
      日本発生生物学会第41回大会
    • Place of Presentation
      徳島県徳島市
    • Year and Date
      2008-05-28
    • Related Report
      2008 Final Research Report
  • [Presentation] Stem cells and transdifferentiation in colonial tunicates.2008

    • Author(s)
      Kawamura, K., Stmanaga, T.
    • Organizer
      日本発生生物学会第41回大会
    • Place of Presentation
      徳島県、徳島文化会館
    • Year and Date
      2008-05-28
    • Related Report
      2008 Annual Research Report
  • [Presentation] ミダレキクイタボヤ生殖細胞形成におけるnanosの機能解析2007

    • Author(s)
      砂長毅・川村和夫
    • Organizer
      第30回日本分子生物学会年会
    • Place of Presentation
      神奈川県横浜市
    • Year and Date
      2007-12-12
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Book] ホヤ生殖系列幹細胞のフレキシビリティー. 21世紀の動物科学第4巻「性と生殖」2008

    • Author(s)
      川村和夫・砂長毅
    • Publisher
      培風館
    • Related Report
      2008 Final Research Report
  • [Book] 21世紀の動物科学第4巻ホヤ生殖系列幹細胞のフレキシビリティー2008

    • Author(s)
      川村 和夫・砂長 毅
    • Publisher
      培風館
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://science.cc.kochi-u.ac.jp/HSM/HSMO13.html

    • Related Report
      2007 Annual Research Report

URL: 

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

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