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Expression of the Hippo pathway effector, TEAD1, within the developing murine forebrain.
Alexandra Pelenyi1, Cooper Atterton1, Justin Jones1
1The School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, QLD, 4072, Australia.
Gene Expression Patterns : GEP
|November 18, 2024
Summary
TEAD1 is crucial for mouse brain development, specifically in neural progenitor cells. Its expression pattern is key to understanding brain growth regulation.
Area of Science:
- Developmental Biology
- Neuroscience
- Molecular Biology
Background:
- The Hippo pathway regulates animal development by controlling YAP/TAZ transcriptional co-factors.
- TEAD transcription factors, interacting with YAP/TAZ, are vital for this pathway's function.
- TEAD family expression patterns in the mammalian nervous system are not well understood.
Purpose of the Study:
- To map the expression of TEAD1 in the developing mouse brain.
- To investigate the role of TEAD1 in neural development and progenitor cell proliferation.
Main Methods:
- In situ hybridization and immunohistochemistry to determine TEAD1 expression patterns.
- Analysis of TEAD1 expression in radial glia, intermediate progenitor cells, and ependymal cells.
- Conditional heterozygous mouse models (Tead1) to assess brain size and development.
Main Results:
- TEAD1 expression is restricted to progenitor cells (radial glia, intermediate progenitors) during embryonic brain development.
- TEAD1 is also found in ependymal cells, choroid plexuses, and forebrain neurogenic niches.
- Adult mice with reduced TEAD1 in the central nervous system show significantly smaller brains.
Conclusions:
- TEAD1 exhibits a specific expression profile in the developing telencephalon.
- TEAD1 plays a critical role in regulating neural progenitor cell proliferation and overall brain size.
