YAP maintains the production of intermediate progenitor cells and upper-layer projection neurons in the mouse cerebral cortex.

Publisher: Wiley Country of Publication: United States NLM ID: 9201927 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-0177 (Electronic) Linking ISSN: 10588388 NLM ISO Abbreviation: Dev Dyn Subsets: MEDLINE

Original Publication: New York, NY : Wiley, c1992-

Neural Stem Cells*/metabolism; Animals ; Cell Cycle Proteins/metabolism ; Cell Proliferation/physiology ; Cerebral Cortex/metabolism ; Ependymoglial Cells/metabolism ; Mice ; Neurogenesis/physiology ; Neurons/metabolism ; Transcription Factors/genetics ; Transcription Factors/metabolism ; YAP-Signaling Proteins

Background: The Hippo pathway is conserved through evolution and plays critical roles in development, tissue homeostasis and tumorigenesis. Yes-associated protein (YAP) is a transcriptional coactivator downstream of the Hippo pathway. Previous studies have demonstrated that activation of YAP promotes proliferation in the developing brain. Whether YAP is required for the production of neural progenitor cells or neurons in vivo remains unclear.
Results: We demonstrated that SATB homeobox 2 (SATB2)-positive projection neurons (PNs) in upper layers, but not T-box brain transcription factor 1-positive and Coup-TF interacting protein 2-positive PNs in deep layers, were decreased in the neonatal cerebral cortex of Yap conditional knockout (cKO) mice driven by Nestin-Cre. Cell proliferation was reduced in the developing cerebral cortex of Yap-cKO. SATB2-positive PNs are largely generated from intermediate progenitor cells (IPCs), which are derived from radial glial cells (RGCs) during cortical development. Among these progenitor cells, IPCs but not RGCs were decreased in Yap-cKO. We further demonstrated that cell cycle re-entry was reduced in progenitor cells of Yap-cKO, suggesting that fewer IPCs were generated in Yap-cKO.
Conclusion: YAP is required for the production of IPCs and upper-layer SATB2-positive PNs during development of the cerebral cortex in mice.
(© 2021 American Association for Anatomy.)

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Keywords: Hippo pathway; YAP; cerebral cortex; intermediate progenitor cells; radial glial cells

0 (Cell Cycle Proteins)
0 (Transcription Factors)
0 (YAP-Signaling Proteins)
0 (Yap1 protein, mouse)

Date Created: 20211221 Date Completed: 20220503 Latest Revision: 20220614

20221213

10.1002/dvdy.448

34931379