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Updated: Jul 19, 2026

3D Modeling of Dendritic Spines with Synaptic Plasticity
Published on: May 18, 2020
Dynamic stabilization: Structural plasticity at inhibitory postsynaptic sites
1Zentrum für Molekulare Neurobiologie Hamburg, ZMNH, Universität Hamburg, Falkenried 94, D-20251 Hamburg, Germany. matthias.kneussel@zmnh.uni-hamburg.de
Abstract:
Rearrangement of molecular structures at individual synapses can contribute to network plasticity. At mossy fiber presynaptic terminals, experience regulates both connectivity and structure of individual boutons. Moreover, dendritic spines and postsynaptic densities of glutamatergic synapses rapidly form and remodel in an activity-dependent manner. Recent studies of the postsynaptic scaffold molecule gephyrin have now revealed that also inhibitory shaft synapses undergo rapid remodeling at the postsynaptic scaffold level. Taking into account that also surface membrane receptors are highly mobile, local coincidence of receptors and scaffold elements in adjacent layers at dendritic shafts might depend on regulatory processes underlying synaptic plasticity.
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