This study shows that adult neurogenesis requires canonical Wnt signaling to trigger transcription of pro-neural NeuroD1. Wnt signaling activates β-catenin, which in complex with TCF/LEF displaces the repressor Sox2 from a previously unknown combined Sox/LEF element in the Neurod1 promoter. Similar Sox/LEF elements activated by Wnt signaling were found in LINE-1 retrotransposons.
- Tomoko Kuwabara
- Jenny Hsieh
- Fred H Gage
