Zebrafish Model of Roberts Syndrome Shows Esco2 Depletion Disrupts Development
Author Information
Author(s): Mönnich Maren, Kuriger Zoë, Print Cristin G., Horsfield Julia A.
Primary Institution: Department of Pathology, Dunedin School of Medicine, The University of Otago, Dunedin, New Zealand
Hypothesis
Does Esco2 depletion in zebrafish affect developmental pathways and lead to phenotypes resembling Roberts Syndrome?
Conclusion
Esco2 depletion in zebrafish leads to developmental defects primarily due to cell death and not due to misregulation of developmental genes.
Supporting Evidence
- Esco2-depleted zebrafish embryos exhibit craniofacial defects and reduced pectoral fin growth.
- High levels of cell death were observed in the brains of Esco2 morphants.
- Esco2 depletion leads to a cell cycle block in G2 phase and increased apoptosis.
- Mutations in different elements of the cohesion apparatus have distinct developmental outcomes.
Takeaway
When zebrafish don't have enough Esco2, they have trouble growing properly, especially in their faces and fins, because too many of their cells die.
Methodology
Zebrafish embryos were injected with morpholino oligonucleotides to deplete Esco2, and various assays were performed to assess cell cycle, apoptosis, and gene expression.
Limitations
The study primarily focuses on zebrafish, which may not fully replicate human developmental processes.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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