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Otx and Emx homeobox genes in brain development.
C Cecchi1, A Mallamaci, E Boncinelli
1Molecular Biology of Development, DIBIT, Istituto Scientifico H San Raffaele, Milan, Italy.
The International Journal of Developmental Biology
|November 4, 2000
Summary
This review highlights homeobox genes Emx2 and Otx in mouse brain development. Emx2 is crucial for cerebral cortex cytoarchitecture, controlling neuronal precursor proliferation and migration.
Area of Science:
- Neuroscience
- Developmental Biology
- Genetics
Background:
- Significant advancements in understanding mouse brain formation and regionalization.
- Focus on homeobox-containing genes regulating brain development.
Purpose of the Study:
- To review the expression patterns and knockout mouse characterizations of Emx and Otx genes.
- To elucidate the specific roles of Emx2 in cerebral cortex development.
Main Methods:
- Analysis of gene expression patterns in developing mouse brains.
- Characterization of knockout mouse models for Emx and Otx genes.
Main Results:
- Otx genes are involved in the formation and regionalization of the rostral brain (forebrain and midbrain).
- Emx2 plays a key role in specifying cerebral cortex cytoarchitecture.
- Emx2 regulates neuronal precursor proliferation and neuron migration.
Conclusions:
- Otx genes are essential for early rostral brain patterning.
- Emx2 is critical for the proper development and organization of the cerebral cortex.
- Understanding these genes provides insights into neural development mechanisms.