Journal
CELL CYCLE
Volume 7, Issue 24, Pages 3819-3822Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/cc.7.24.7215
Keywords
Cdk1; FOXO1; neuronal apoptosis; cell cycle; mitosis; 14-3-3; Plk1
Categories
Funding
- NIH [NS047188]
- Ruth L. Kirschstein NRSA Research Training grant (NCI)
- Brain Science Foundation
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An emerging theme in molecular neurobiology is the discovery of post-mitotic functions for proteins classically associated with mitotic transition in cycling cells. Although neurons have departed the cell cycle, they surprisingly express molecules in the cell cycle apparatus throughout development. The major mitotic cyclin-dependent kinase Cdk1 plays a critical role during the period of naturally occurring neuronal death in the nervous system and has been suggested to contribute to the pathogenesis of neurodegenerative diseases. However, the mechanisms by which Cdk1 promotes neuronal apoptosis are incompletely understood. A recent report by Yuan et al., (2008) has identified a direct relationship between this mitotic kinase and forkhead transcription factor FOXO1, a protein previously implicated in cell death, DNA damage repair and tumor suppression. Here we will discuss the key findings of this report and consider the implications of this mechanism to the regulation of other signal transduction pathways in brain development and diseases.
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