New methods for investigating connectivity between genetically defined neuronal populations are introduced and used to investigate the organisation of excitatory-inhibitory interactions in the superficial entorhinal cortex.
Alison Philbrook, Shankar Ramachandran ... Michael M Francis
Investigation of synapse development using a single neuron system illuminates how individual neurons specify connectivity with their postsynaptic partners and the central role of the synaptic organizer neurexin in this process.
Akiko Terauchi, Erin M Johnson-Venkatesh ... Hisashi Umemori
Feedback signaling between the synapse and nucleus via FGF22 and IGF2 directs the activity-dependent stabilization of presynaptic terminals in the mouse hippocampus.
Despite ongoing rewiring and continuous turnover of synapses, a computational model shows that memories can maintain and even strengthen their connectivity by self-reactivating during periods without sensory input.
Filamin, by recruiting a signaling complex to the postsynapse, orchestrates the correct formation and growth of postsynaptic membranes and localization of glutamate receptor subunits.
Artemis Koumoundourou, Märt Rannap ... Stefan Britsch
Molecular genetic, cell culture as well as electrophysiological analyses reveal a C1ql2/Neurexin3(25b+)-dependent molecular pathway through which Bcl11b controls critical functions of adult hippocampal mossy fiber synapses.
Proximity proteomics combined with mouse genetics are used to assess the composition of active zone-like sites for dopamine release and reveal that the scaffolding protein RIM organizes these sites.
Teneurin-2, a synaptic organizer, localizes to microtubule-rich inhibitory synapses and recruits microtubules via interaction with end-binding proteins, and this mechanism enables GABAA receptors exocytosis.
Neuroligin 1 is a critical adhesion molecule which organizes AMPA receptor nanodomains in close vicinity to pre-synaptic release sites, and whose genetic or chemical disruption severely impairs synaptic transmission properties.
Audrey T Medeiros, Scott J Gratz ... Kate M O'Connor-Giles
In vivo analysis of endogenously tagged Ca2+ channel subunits reveals unexpected differences in subunit composition and synapse-specific relationships between channel abundance and synaptic strength.