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Glycoconjugate unique to migrating primordial germ cells differs with genera
A R Fazel1, B A Schulte, S S Spicer
1Department of Anatomy, Mashhad University of Medical Sciences, Iran.
The Anatomical Record
|October 1, 1990
Summary
Mouse primordial germ cells (PGCs) lack the unique N-acetylgalactosamine surface marker found in rats. Instead, PGCs show varied reactivity with fucose-binding lectins during mouse embryonic development, suggesting species-specific cell surface glycoconjugates.
Area of Science:
- Developmental Biology
- Cell Biology
- Glycobiology
Background:
- Primordial germ cells (PGCs) are crucial for reproduction.
- Previous studies identified a unique surface glycoconjugate on rat PGCs.
Purpose of the Study:
- To investigate if mouse PGCs share the same surface glycoconjugate as rat PGCs.
- To characterize the surface glycoconjugates of mouse PGCs using lectin binding.
Main Methods:
- Cytochemical staining of mouse embryos.
- Use of peroxidase-conjugated lectins specific for terminal sugars and internal linkages.
- Analysis of lectin reactivity with PGCs at different developmental stages.
Main Results:
- Mouse PGCs did not react with lectins for terminal N-acetylgalactosamine.
- Mouse PGCs showed differential binding to fucose-specific lectins.
- Reactivity of fucose-binding lectins with PGCs changed during embryonic development.
Conclusions:
- Mouse PGCs possess distinct surface glycoconjugates compared to rat PGCs.
- Cell surface glycoconjugates involved in PGC development may differ across species.
- Developmental mechanisms for PGCs might be conserved despite differing cell surface structures.