Genetic ablation of Rest leads to in vitro-specific derepression of neuronal genes during neurogen of neuronal genes during neurogenesis

Too bad I'm not a new graduate student. Dozens and dozens of possibilities to look into.
Who is leading the drive to meet the mission statement of;
'Saving neurons now!'
http://dev.biologists.org/content/early/2012/01/12/dev.072272.abstract

Summary

Rest (RE1-silencing transcription factor, also called Nrsf) is involved in the maintenance of the undifferentiated state of neuronal stem/progenitor cells in vitro by preventing precocious expression of neuronal genes. However, the function of Rest during neurogenesis in vivo remains to be elucidated because of the early embryonic lethal phenotype of conventional Rest knockout mice. In the present study, we have generated Rest conditional knockout mice, which allow the effect of genetic ablation of Rest during embryonic neurogenesis to be examined in vivo. We show that Rest plays a role in suppressing the expression of neuronal genes in cultured neuronal cells in vitro, as well as in non-neuronal cells outside of the central nervous system, but that it is dispensable for embryonic neurogenesis in vivo. Our findings highlight the significance of extrinsic signals for the proper intrinsic regulation of neuronal gene expression levels in the specification of cell fate during embryonic neurogenesis in vivo.