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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The regulation of apoptosis by Numb/Notch signaling in the serotonin lineage of Drosophila.

Apoptosis is prevalent during development of the central nervous system (CNS), yet very little is known about the signals that specify an apoptotic cell fate. In this paper, we examine the role of Numb/Notch signaling in the development of the serotonin lineage of Drosophila and show that it is necessary for regulating apoptosis. Our results indicate that when Numb inhibits Notch signaling, cells undergo neuronal differentiation, whereas cells that maintain Notch signaling initiate apoptosis. The apoptosis inhibitor p35 can counteract Notch-mediated apoptosis and rescue cells within the serotonin lineage that normally undergo apoptosis. Furthermore, we observe tumor-like overproliferation of cells in the CNS when Notch signaling is reduced. These data suggest that the distribution of Numb during terminal mitotic divisions of the CNS can distinguish between a neuronal cell fate and programmed cell death.[1]

References

  1. The regulation of apoptosis by Numb/Notch signaling in the serotonin lineage of Drosophila. Lundell, M.J., Lee, H.K., Pérez, E., Chadwell, L. Development (2003) [Pubmed]
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