Inter-Synaptic Lateral Diffusion of GABAA Receptors Shapes Inhibitory Synaptic Currents.

Abstract:

:The lateral mobility of neurotransmitter receptors has been shown to tune synaptic signals. Here we report that GABAA receptors (GABAARs) can diffuse between adjacent dendritic GABAergic synapses in long-living desensitized states, thus laterally spreading "activation memories" between inhibitory synapses. Glutamatergic activity limits this inter-synaptic diffusion by trapping GABAARs at excitatory synapses. This novel form of activity-dependent hetero-synaptic interplay is likely to modulate dendritic synaptic signaling.

journal_name

Neuron

journal_title

Neuron

authors

de Luca E,Ravasenga T,Petrini EM,Polenghi A,Nieus T,Guazzi S,Barberis A

doi

10.1016/j.neuron.2017.06.022

subject

Has Abstract

pub_date

2017-07-05 00:00:00

pages

63-69.e5

issue

1

eissn

0896-6273

issn

1097-4199

pii

S0896-6273(17)30546-9

journal_volume

95

pub_type

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