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Updated: Feb 1, 2026
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Derivation of Stem Cell Lines from Mouse Preimplantation Embryos
Published on: August 20, 2017
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Derivation and morphological characterization of mouse spermatogonial stem cell lines
Takehiko Ogawa1, Masako Ohmura, Yoichi Tamura
1Department of Urology, Yokohama City University Graduate School of Medicine, Yokohama, Japan. ogawa@med.yokohama-cu.ac.jp
Archives of Histology and Cytology
|February 11, 2005
Summary
Germline stem cells (GS cells) derived from neonatal or adult mouse testes can be cultured in vitro and produce functional sperm. These GS cells are convertible with spermatogonial stem cells (SSCs), offering a new tool for animal genetic engineering.
Area of Science:
- Stem cell biology
- Reproductive biology
- Developmental biology
Background:
- Spermatogonial stem cells (SSCs) lack definitive markers and are identified via transplantation assays.
- Previous research demonstrated in vitro propagation of neonatal mouse gonocytes into germline stem cells (GS cells).
- GS cells successfully produced functional sperm and offspring upon transplantation into recipient testes.
Purpose of the Study:
- To establish GS cell lines from both neonatal and adult mouse testes.
- To investigate the convertibility between GS cells and SSCs in adult testes.
- To characterize GS cells for potential applications in germ cell research and animal genetic engineering.
Main Methods:
- Establishment of GS cell lines from neonatal and adult mouse testes.
- In vitro expansion and transplantation assays of GS cells.
- Confocal laser microscopy for cellular characterization.
Main Results:
- GS cell lines were successfully established from both neonatal and adult mouse testes.
- Transplanted GS cells could be recovered and re-cultured in vitro, demonstrating mutual convertibility with SSCs.
- Confocal microscopy revealed GS cells resemble undifferentiated spermatogonia in adult testes.
Conclusions:
- GS cells can be derived from adult mouse testes, expanding their origin potential.
- GS cells exhibit convertibility with SSCs, suggesting a dynamic relationship between these cell types.
- Established GS cell lines offer a valuable resource for germ cell biology research and animal genetic engineering.
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