This study focuses on developing mouse skin where mitotic basal progenitor cells switch from symmetric divisions to asymmetric division concomitant with stratification. Using a novel technical approach, the genetic pathway regulating spindle orientation is dissected, providing the first direct evidence that the proteins governing spindle orientation (LGN, NuMA and Dctn1) promote asymmetric cell divisions regulated by Notch signalling in mammalian cells in vivo.
- Scott E. Williams
- Slobodan Beronja
- Elaine Fuchs