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- Title
Regulation of cerebral cortical size by control of cell cycle exit in neural precursors.
- Authors
Chenn, Anjen; Walsh, Christopher A
- Abstract
Transgenic mice expressing a stabilized beta-catenin in neural precursors develop enlarged brains with increased cerebral cortical surface area and folds resembling sulci and gyri of higher mammals. Brains from transgenic animals have enlarged lateral ventricles lined with neuroepithelial precursor cells, reflecting an expansion of the precursor population. Compared with wild-type precursors, a greater proportion of transgenic precursors reenter the cell cycle after mitosis. These results show that beta-catenin can function in the decision of precursors to proliferate or differentiate during mammalian neuronal development and suggest that beta-catenin can regulate cerebral cortical size by controlling the generation of neural precursor cells.
- Publication
Science (New York, N.Y.), 2002, Vol 297, Issue 5580, p365
- ISSN
1095-9203
- Publication type
Journal Article
- DOI
10.1126/science.1074192