Abstract

Activity-dependent dendritic growth is dependent upon intracellular calcium signaling. Yet the specific mechanisms by which calcium signals lead to morphologic changes in dendrites are not well understood. A paper in this issue of Neuron by Wayman et al. describes a novel calcium-dependent signaling cascade linking neuronal activity and calcium influx to expression of Wnt-2, a member of a family of proteins that controls elaboration of dendrites.

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