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Structure and function of proteins regulating cell growth and differentiation during asexual reproduction of tunicates

Research Project

Project/Area Number 11480221
Research Category

Grant-in-Aid for Scientific Research (B)

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

Principal Investigator

KAWAMURA Kazuo  Kochi University, Department of Materiai Science, Professor, 理学部, 教授 (30136361)

Co-Investigator(Kenkyū-buntansha) FUJIWARA Shigeki  Kochi University, Department of Material Science, Associate Professor, 理学部, 助教授 (40229068)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 2001: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1999: ¥2,800,000 (Direct Cost: ¥2,800,000)
Keywordstunicate / budding / multipotency / retinoic acid / retinoid X receptor / serine protease / serine protease inhibitor / lectin / αヘリックス / 無性生殖 / セリンプロテアーゼ / プロテアーゼインヒビター / C型レクチン / 上皮 / アルデヒドデヒドロゲナーゼ / イチノイン酸受容体 / レチノイドX受容体 / プロテアーゼ
Research Abstract

Budding tunicates possess a remarkable potential of tissue renewal. Interestingly, this renewal is not accomplished by undifferentiated stem cell but by differentiated somatic cells. As soon as budding or regeneration begins, pigmented epithelial cells (atrial epithelium) undergo dedifferentiation, enter cell division cycle and take undifferentiated shape. This kind of morphogenesis that accompanies dedifferentiation and/or transdifferentiation is also known in Cnidaria and Annelida. In contrast with vertebrate stem cell system, we call this as 'primitive' stem cell system. The goal of our project is to disclose structure and function of proteins that regulate cell growth and differentiation of multipotent cells in budding tunicates.
First we have looked for genes that are expressed specifically at budding phase by the method of subtraction, differential display and EST analysis. Secondly, spatio-temporal expression of those genes has been examined by means of in situ hybridization and … More immunohistochemistry. Thirdly, in order to elucidate gene functions, recombinant proteins and mutant proteins have been produced and assayed in vitro using tunicate cell lines.
In this project, we have cloned eight kinds of budding-specific genes {retinoid X receptor (RXR), aldehyde dehydrogenase (ALDH), serine protease (TRAMP), serine protease inhibitor (SERPIN), lectin (TC14), reverse transcriptase (RT), cytochrome b5 (Cb5), mitochondrial 16S ribosomal RNA (MTlrRNA)}. ALDH is expressed in the epidermis very early during budding or regeneration. It plays a role in biosynthesis of retinoic acid. Then, retinoic acid induces production and excretion of TRAMP and SERPIN that are dedifferentiation factors of the multipotent cells in budding tunicate. TC14 counteracts the dedifferentiation factors, and its activity is canceled with ease by inhibition sugar such as galactose. Cb5 is known to plays a role in fatty acid biosynthesis. In budding tunicates, fatty acids show cell growth-promoting activity. RT is expressed in the multipotent epithelium. As it resembles fruit fly retroposon, gypsy, RT may play a role in rejuvenation of multipotent, but differentiated cells in budding tunicates. Less

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (34 results)

All Other

All Publications (34 results)

  • [Publications] Yubisui, T., et al.: "Characterization of cytochrome b5 in the ascidian, Polyandrocarpa misakiensis and budding-specific expression"Journal of Biochemistry. 129. 709-716 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsumoto, J., et al.: "A novel C-type lectin regulating cell growth, cell adhesion and cell differentiation in budding tunicates"Development. 128. 3339-3347 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K., Fujiwara, S.: "Advantage or disadvantage : Is asexual reproduction beneficial to survival of the tunicate, Polyandrocarpa misakiensis?"Zoological Science. 17. 281-291 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kamimura, M., et al.: "Functional retinoid receptors in ascidians"Development, Growth and Differentiation. 42. 1-8 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ohashi, M., et al.: "A retinoic acid-inducible modular protease in budding ascidians"Developmental Biology. 214. 38-45 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K., Sugino, Y.M.: "Cell adhesion in the process of asexual reproduction of tunicates"Microscopic Research Technique. 40. 269-278 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K.: "Molecular and cellular advantage of transdifferentiation system for asexual reproduction of the tunicate Polyandrocarpa misakiensis. In : The Biology of Ascidians"Springer Verlag, Tokyo.(edited by Sawada et al.). 293-299 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K., and Sugino, Y.M.: "Cell adhesion in the process of asexual reproduction of tunicates"Micro. Res. Tech.. 40. 269-278 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K., Shibata, T., Saget, O., Peel, D., and Bryant, P.J.: "A new family of growth factors produced by fat body and active on Drosophila imaginal disc cells"Development. 126. 211-219 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Ohashi, M., Kawamura, K., Fujii, N., Yubisui, T., and Fujiwara, S.: "A retinoic acid-inducible modular protease in budding ascidians"Develop. Biol.. 214. 38-45 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kamimura, M., Hisata, K., Fujiwara, S., Kawamura, K. an Yubisui, T.: "Functional retinoid receptors in ascidians."Develop. Growth and Differ.. 42. 1-8 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K., Fujiwara, S., and Yubisui, T.: "Asexual reproduction and proteases in tunicates"Seikagaku. 72. 298-302 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K. and Fujiwara, S.: "Advantage or disadvantage : Is asexual reproduction beneficial to survival of the tunicate, Polyandrocarpa misakiensis?"Zool. Sci.. 17. 281-291 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yubisui, T., Takahashi, H., Takabayashi, S., Fujiwara, S. and Kawamur, K.: "Characterization of cytochrome b5 in the ascidian, Polyandrocarpa misakiensis and budding-specific expression"J. Biochem.. 129. 709-716 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Matsumoto, J., Nakamoto, C., Fujiwara, S., Yubisui, T. and Kawamura, K.: "A novel C-type lectin regulating cell growth, cell adhesion and cell differentiation in budding tunicates"Development. 128. 3339-3347 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kawamura, K.: "Molecular and cellular advantage of transdifferentiation system for asexual reproduction of the tunicate Polyandrocarpa misakiensis"In : The Biology of Ascidians (edited by Sawada et al.), p. 293-299, Springer Verlag, Tokyo.. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Fujiwara, S., Kamimura, M., Ohashi, M. and Kawamura, K.: "Molecular bases of bud development in ascidians"In : The Biology of Ascidians (edited by Sawada et al.), p. 300-304, Springer Verlag, Tokyo. (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yubisui, T., Takahashi, H., Takabayashi, S., Fujiwara, S., Kawamura, K.: "Characterization of cytochrome b5 in the ascidian, Polyandrocarpa misakiensis and budding-specific expression"Journal of Biochemistry. 129. 709-716 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Matsumoto, J., Nakamoto, C., Fujiwara, S., Yubisui, T., Kawamura, K.: "A novel C-type lectin regulating cell growth, cell adhesion and cell differentiation in budding tunicates"Development. 128. 3339-3347 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kuwamura, K: "Molecular and cellular advantage of transdifferentiation system for asexual reproduction of the tunicate Polyandrocarpa misakiensis. In : The Biology of Ascidians"Springer Verlag, Tokyo.(edited by Sawada et al.). 293-299 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Fujiwara, S., Kamimura, M., Ohashi, M., Kuwamura, K.: "Molecular bases of bud development in ascidians. In : The Biology of Ascidians"Springer Verlag, Tokyo.(edited by sawada et al.). 300-304 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kamimura,M.: "Functional retinoid receptors in budding ascidians."Develop.Growth Differ.. 42. 18 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawamura,K.: "Advantage or disadvantage : Is asexual reproduction beneficial to survival of the tunicate, Polyandrocarpa misakiensis?"Zool.Sci.. 17. 281-291 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 川村和夫: "ホヤの無性生殖とプロテアーゼ"生化学. 72. 298-302 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yubisui,T.: "Characterization of cytochrome b5 in the ascidian, Polyandrocarpa misakiensis and budding specific expression."J.Biochem.. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Matsumoto,J.: "A novel C-type lectin regulating cell growth, cell adhesion and cell differentiation of budding tunicates."Development. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawamura,K.: "Molecular and cellular advantage of transdifferentiation system for asexual reproduction of the tunicate Polyandrocarpa misakiensis."Springer The Biology of Ascidians (Sawada et al., eds). 293-299 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Fujiwara,S.: "Molecular bases of bud development in ascidians."Springer The Biology of Ascidians (Sawada et al., eds). 300-304 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kawamura,K.: "Cell adhesion..in the process of asexual reproduction of tunicates."Micro.Res.Tech.. 44. 269-278 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kawamura,K.: "A new family of growth factors produced by fat body and active on Drosophila imaginal disc cells."Development. 126. 211-219 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Ohashi,M.: "Retinoic aced-inducible modular protease in budding ascidians."Develop.Biol.. 214. 38-45 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kamimura,M.: "Functional retinoid receptors in budding ascidians."Develop.Growth Differ.. 42. 1-8 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] Kawamura,K.: "Advantage or disadvantage: Is asexual reproduction beneticial to survival of tunicates?"Zool.Sci.. 17(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 川村和夫: "ホヤの無性生殖とプロテアーゼ"生化学. 72(印刷中). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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