GATA4 and GATA5 are essential for heart and liver development in Xenopus embryos
Author Information
Author(s): Haworth Kim E, Kotecha Surendra, Mohun Timothy J, Latinkic Branko V
Primary Institution: School of Biosciences, Cardiff University
Hypothesis
GATA4 and GATA5 play critical roles in the development of heart and liver precursors in Xenopus embryos.
Conclusion
GATA5 is required earlier than GATA4 for the development of heart and liver precursors in Xenopus embryos.
Supporting Evidence
- GATA5 is essential for early development of heart and liver precursors in Xenopus embryos.
- GATA4 is important for development of heart and liver primordia following their specification.
- Injection of GATA5 morpholinos resulted in severe reduction of heart and liver markers.
- GATA5 acts earlier than GATA4 in regulating heart and liver development.
- Both GATA4 and GATA5 are expressed in cardiac mesoderm and hepatogenic endoderm.
Takeaway
GATA5 helps form the heart and liver in baby frogs, and if it doesn't work right, those organs can't grow properly.
Methodology
The study used morpholino oligonucleotides to knock down GATA4 and GATA5 in Xenopus embryos and assessed the resulting phenotypes.
Limitations
The study did not explore the cell autonomy of GATA4 and GATA5 functions in heart and liver development.
Participant Demographics
Xenopus laevis and Xenopus tropicalis embryos were used in the study.
Digital Object Identifier (DOI)
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