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Updated: May 11, 2026
11:02
Chromatin Immunoprecipitation Assay for Tissue-specific Genes using Early-stage Mouse Embryos
Published on: April 29, 2011
The T-box transcription factor Eomesodermin is essential for AVE induction in the mouse embryo
Sonja Nowotschin1, Ita Costello, Anna Piliszek
1Developmental Biology Program, Sloan-Kettering Institute, New York, New York 10065, USA.
Genes & Development
|May 9, 2013
Summary
Eomesodermin (Eomes) is crucial for recruiting anterior visceral endoderm cells, initiating the anterior-posterior axis formation in mouse embryos. This T-box gene activates Lhx1, establishing early embryonic polarity.
Area of Science:
- Developmental biology
- Molecular biology
- Genetics
Background:
- Establishing the anterior-posterior (AP) axis is fundamental for early mammalian development.
- The anterior visceral endoderm (AVE) is a key signaling center for AP axis formation.
- The molecular mechanisms governing AVE induction and migration remain incompletely understood.
Purpose of the Study:
- To investigate the role of Eomesodermin (Eomes) in the recruitment and function of the anterior visceral endoderm (AVE).
- To elucidate the molecular pathways by which Eomes influences early embryonic patterning.
Main Methods:
- Analysis of gene expression patterns in early mouse embryos.
- Investigating the function of the T-box gene Eomesodermin (Eomes) in visceral endoderm (VE).
- Studying the direct activation of the homeobox transcription factor Lhx1 by Eomes.
Main Results:
- Eomesodermin (Eomes) is essential for the recruitment of anterior visceral endoderm (AVE) cells.
- Eomes directly activates the transcription of Lhx1 within the visceral endoderm (VE).
- This Eomes-Lhx1 interaction initiates a critical transcriptional program for AP axis establishment.
Conclusions:
- Eomesodermin (Eomes) plays a vital role in initiating anterior-posterior axis formation.
- The function of Eomes in the visceral endoderm (VE) is critical for orchestrating early embryonic polarity through Lhx1 activation.
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