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| Content Provider | PubMed Central |
|---|---|
| Author | Ghosh, Sourav Marquardt, Till Thaler, Joshua P. Carter, Nigel Andrews, Shane E. Pfaff, Samuel L. Hunter, Tony |
| Copyright Year | 2007 |
| Abstract | In the neurogenic phase of CNS development, the proliferating progenitors are found medially within the neuroepithelium. The adherens junctions on the apical membrane of proliferating neural progenitors allow for cell–cell adhesion and medial stratification. In contrast, differentiating neuronal precursors delaminate and migrate laterally, establishing the laminar layers. Apical adherens junctions also establish the apical–basal polarity in neural progenitors, which in turn is postulated to lead to asymmetric inheritance of cell fate determinants during neurogenic divisions. The signaling pathways and cellular mechanisms that regulate the assembly and asymmetric localization of adherens junctions in neural progenitors remain elusive. Here we show that atypical PKCζ/λ (aPKCζ/λ) localizes at the apical membrane of proliferating neural stem cells, but not postmitotic neuronal precursors, in the developing chicken neural tube. This precise subcellular compartmentalization of the kinase activity provides an instructive signal for apical assembly of adherens junctions in a PI3K, Rac/Cdc42 signaling-dependent pathway. Apical aPKCζ coordinates neural stem cell proliferation and the overall stratification of cell types within the neural tube. |
| Related Links | http://dx.doi.org/10.1073/pnas.0705713105 |
| Ending Page | 340 |
| Page Count | 6 |
| Starting Page | 335 |
| File Format | |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 1 |
| Volume Number | 105 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2008-01-08 |
| Access Restriction | Open |
| Rights Holder | National Academy of Sciences |
| Subject Keyword | General Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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