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Updated: Aug 8, 2026

Analysis of Dendritic Spine Morphology in Cultured CNS Neurons
Published on: July 13, 2011
Integration of biochemical signalling in spines
Mary B Kennedy1, Holly C Beale, Holly J Carlisle
1Division of Biology 216-76, California Institute of Technology, Pasadena, California 91125, USA. kennedym@its.caltech.edu
Abstract:
Short-term and long-term changes in the strength of synapses in neural networks underlie working memory and long-term memory storage in the brain. These changes are regulated by many biochemical signalling pathways in the postsynaptic spines of excitatory synapses. Recent findings about the roles and regulation of the small GTPases Ras, Rap and Rac in spines provide new insights into the coordination and cooperation of different pathways to effect synaptic plasticity. Here, we present an initial working representation of the interactions of five signalling cascades that are usually studied individually. We discuss their integrated function in the regulation of postsynaptic plasticity.
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