Throughout life, adult neural stem cells generate new brain cells in the dentate gyrus, the central part of the hippocampus, which is involved in the formation of memories and learning (shown in white). BOTTOM: Overexpression of a single gene changed the fate of neural stem cells bound to join the neuronal network in the brain. Instead they differentiated into glial support cells (shown in green). (Credit: Courtesy of Dr. Sebastian Jessberger, Swiss Federal Institute of Technology in Zurich)
