Autophagy: cerebral home cooking.

Cell survival depends on a complex interplay of processes including homeostatic pathways and cytoprotective mechanisms. Autophagy is a physiological process involved in the basal turnover of long-lived proteins and organelles and also comprises an integral part of the cellular stress response. The significance of autophagy in regulating neural cell fate has become increasingly recognized and agents targeting autophagy are of increasing therapeutic interest. This review summarizes the recent expansion of our understanding of the scope of this physiological process.