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Updated: Jun 21, 2026
14:01
Isolation and Derivation of Mouse Embryonic Germinal Cells
Published on: October 22, 2009
Presumptive germ cells derived from mouse pluripotent somatic cell hybrids
Thais M C Lavagnolli1, Simone A S Fonseca, Rui C Serafim
1Department of Genetics and Morphology, Federal University of São Paulo, São Paulo-SP, Brazil.
Differentiation; Research in Biological Diversity
|July 31, 2009
Summary
Embryonic stem-somatic cell hybrids (ES-SCH) can differentiate into presumptive germ cells (GC) in vitro. This study demonstrates a novel model for studying germ cell differentiation in reprogrammed somatic cells.
Area of Science:
- Developmental Biology
- Stem Cell Biology
- Reproductive Biology
Background:
- Embryonic stem (ES) cells can be fused with somatic cells to create hybrids (ES-SCH) that retain pluripotency.
- While ES cells differentiate into various cell types, the germ cell differentiation potential of ES-SCH in vitro remains unexplored.
Purpose of the Study:
- To investigate whether ES-SCH can differentiate into germ cells (GC) in vitro.
- To establish a novel in vitro model for studying germ cell differentiation in reprogrammed somatic cells.
Main Methods:
- Fusion of mouse ES cells with spleen cells to generate ES-SCH.
- Induction of differentiation via embryoid body (EB) formation and retinoic acid treatment.
- Analysis of presumptive GC markers, gene expression, chromosome reduction, and ultrastructure using antibody staining, RT-PCR, FISH, and transmission electron microscopy.
Main Results:
- Near diploid ES-SCH successfully differentiated into presumptive GC in vitro.
- Presumptive GC expressed key germ cell markers (EMA, Vasa, Fragilis, Dazl) and genes (Vasa, Stella, Dazl, Piwil 2, Tex14, Bmp8b, Tdrd1, Rnf17).
- Evidence of chromosome reduction and expression of meiotic/postmeiotic genes (Haprin, Acrosin, Scyp1, Scyp3, Stra-8) was observed, with somatic cell chromosomes not hindering differentiation.
Conclusions:
- ES-SCH provide a viable in vitro model for studying germ cell differentiation.
- Reprogrammed somatic cells within ES-SCH can undergo germ cell development.
- This model facilitates research into germ cell differentiation using reprogrammed somatic cells.
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