Asymmetry of Early Endosome Distribution in C. elegans Embryos
2007
Asymmetry of Early Endosome Distribution in C. elegans Embryos
publication
Evidence: moderate
Author Information
Author(s): Robert Andrews, Julie Ahringer
Primary Institution: The Gurdon Institute and Department of Genetics, University of Cambridge, Cambridge, United Kingdom
Hypothesis
What roles do early endosomes play in the development of C. elegans embryos?
Conclusion
The asymmetry of early endosomes in C. elegans embryos may influence cell asymmetries or fate decisions.
Supporting Evidence
- Early endosomes are primarily found at the cell periphery with an initially uniform distribution after fertilization.
- During the first cell cycle, early endosomes become enriched at the anterior cortex.
- Asymmetric enrichment of early endosomes depends on acto-myosin contractility and embryonic PAR polarity.
- The Golgi compartment shows no asymmetry in distribution during the first cell cycle.
- EE asymmetry is lost in embryos where nmy-2 or par-3 is knocked down.
Takeaway
In baby worms, some tiny bubbles called early endosomes gather more on one side than the other, which might help decide what the cells will become.
Methodology
The study involved visualizing early endosomes in C. elegans embryos using specific markers and analyzing their distribution during the first cell cycle.
Digital Object Identifier (DOI)
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