• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Research on control mechanisms of growth and differentiation of mouse primordial germ cells and their developmental manipulation

Research Project

Project/Area Number 05454655
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Developmental biology
Research InstitutionNational Institute of Genetics

Principal Investigator

NAKATSUJI Norio  National Institute of Genetics, Mammalian Development Laboratory, Professor, 遺伝実験生物保存研究センター, 教授 (80237312)

Co-Investigator(Kenkyū-buntansha) SHIRAYOSHI Yasuaki  National Institute of Genetics, Mammalian Development Laboratory, Assistant Prof, 遺伝実験生物保存研究センター, 助手 (90249946)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1995: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1994: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1993: ¥3,100,000 (Direct Cost: ¥3,100,000)
KeywordsPrimordial germ cells / Fatal germ cells / gp130 / EG cell lines / Gene transfection / Apoptosis / Tunor necrosis factor / Retinoic acid / TNF-α / 生殖細胞 / マウス / 細胞増殖 / 増殖因子 / 発生工学 / TNF-alpha
Research Abstract

1. Primordial germ cells (PGCs) show proliferation and growth arrest in culture. Such growth pattern could be regulated autonomously or by somatic cells. The mixed culture experiments using PGCs from 8.5 and 11.5 dpc embryos indicated no detectable interaction between the PGCs and somatic cells at the two stages. Clonal culture of PGCs did not reveal any subpopulation of PGCs in terms of growth rate and morphological changes. We conclude that there is an autonomous regulation of growth, which is not strictly timed by the number of cell divisions.
2. Leukemia inhibitory factor (LIF) is a cytokine known to influence proliferation and/or survival of mouse PGCs in culture. We have analyzed the functional role of gp130-mediated signaling in PGC growth in vitro. A combination of IL-6 and soluble IL-6 binding subunit (sIL-6R) fully reproduced the LIF action on PGCs. Addition of neutralizing antibody against gp130 in culture remarkably blocked PGC survival. These results suggest the pivotal role of gp130 in PGC development. We have further demonstrated that a combination of LIF with forskolin or retinoic acid caused continuation of the proliferation of PGCs.
3. We tested transfection methods of electroporation, liposome-mediated transfection and calcium phosphate (CaPO4) co-precipitation method. When PGCs were transfected with plasmid pSV-LT by CaPO4 co-precipitation method, transient expression of simian virus 40 large-T antigen was detected in an average of 18% of PGCs transfected. Transient expression of adenovirus 2 E1B 19kDa protein in about 15% of PGCs significantly retarded disappearance of PGCs from the culture system and increased the number of rounded PGCs.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] Kawase, E., Yamamoto, H., Hashimoto, K. & Nalatsuji, N.: "Tumor necrosis factor (TNF)-α stimulates proliferation of mouse primordial germ cells in culture." Devel. Biol.161. 91-95 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Koshimizu, U., Watanabe, M. & Nakatsuji, N.: "Retinoic acid is a potent growth activator of mouse primordial germ cells in vitro." Devel. Biol.168. 683-685 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ohkubo, Y., Shirayoshi, Y. and Nakatsuji, N.: "Autonomous regulation of proliferation and growth arrest in mouse primordial germ cells studied by mixed and clonal cultures." Exp. Cell Res.222. 291-297 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Koshimizu, U. 他: "Functional requirement of gp130-mediated signaling for growth and survival of mouse primordial germ cells in vitro and derivation of embryonic germ" Development. 122(in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kawase, E., Shirayoshi, Y., Hashimoto, K. and Nalatsuji, N.: "A combination of buffalo rat liver cell-conditi oned medium, forskolin and membrane-bound stem cell factor stimulates rapid proliferation of mouse primordial germ cells in vitro similar to that in vivo." Devel. Growth Differ.38(in press). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kawase, E., Yamamoto, H., Hashimoto, K.& Nakatsuji, N.: "Tumor necrosis factor (TNF)-alpha stimulates proliferation of mouse primordial germ cells in culture." Devel.Biol.161. 91-95 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Koshimizu, U., Watanabe, M.& Nakatsuji, N.: "Retinoic acid is a potent growth activator of mouse primordial germ Cells in vitro." Devel.Biol.168. 683-685 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Ohkubo, Y., Shirayoshi, Y.and Nakatsuji, N.: "Autonomous regulation of proliferation and growth arrest in mouse primordial germ cells studied by mixed and clonal cultures." Exp.Cell Res.222. 291-297 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Koshimizu, U., Taga, T., Watanabe, M., Saito, M., Shirayoshi, Y., Kishimoto, T.and Nakatsuji, N.: "Functional requirement of gp130-mediated signaling for growth and survival of mouse primordial germ cells in vitro and derivation of embryonic germ (EG) cells." Development. 122 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kawase, E., Shirayoshi, Y., Hashimoto, K.and Nakatsuji, N.: "A combination of buffalo rat liver cell-conditioned medium, forskolin and membrane-bound stem cell factor stimulates rapid proliferation of mouse primordial germ cells in vitro similar to that in vivo." Devel.Growth Differ.38 (in press). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Kawase,E.,Yamamoto,H.,Hashimoto,K.& Nakatsuji,N.: "Tumor necrosis factor(TNF)-α stimulates proliferation of mouse primordial germ cells in culture." Devel.Biol.161. 91-95 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Koshimizu,U.,Watanabe,M.& Nakatsuji,N.: "Retinoic acid is a potent growth activator of mouse primordial germ cells in vitro." Devel.Biol.168. 683-685 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Ohkubo,Y.,Shirayoshi,Y.and Nakatsuji,N.: "Autonomous regulation of proliferation and growth arrest in mouse primordial germ cells studied by mixed and clonal cultures." Exp.Cell Res.222. 291-297 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Koshimizu,U.他: "Functional requirement of gp130-mediated signaling for growth and survival of mouse primordial germ cells in vitro and derivation of embryonic germ(EG)cells." Development. 122 in press. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Kawase,E.,Shirayoshi,Y.,Hashimoto,K.and Nakatsuji,N.: "A combination of buffalo rat liver cell-conditioned medium,forskolin and membrane-bound-stem cell factor stimulates rapid proliferation of mouse primordial germ cells in vitro similar to that in vivo." Devel.Growth Differ.38(in press). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] U.Koshimizu 他: "Retinoic acid is potent growth activator of mouse primordial germ cells in vitro." Developmental Biology. (印刷中).

    • Related Report
      1994 Annual Research Report
  • [Publications] E.Kawase 他: "Tumor mesrosis factor(TNF)-alpha Stimulates Proliferation of mouse primordial germ cells in culture" Developmental Biology. 161. 91-95 (1994)

    • Related Report
      1993 Annual Research Report

URL: 

Published: 1993-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi