RhoGTPases Spread the Word for Synaptic Crosstalk.

Excitatory synaptic strengthening and the corresponding enlargement of dendritic spines are thought to be essential for learning and memory. In two recent Nature papers, Harward et al. (2016) and Hedrick et al. (2016) provide insight into the mechanisms that regulate these processes and illuminate the molecular basis of crosstalk between synapses.