GABAA Receptor Trafficking-Mediated Plasticity of Inhibitory Synapses

Bernhard Luscher, Thomas Fuchs, Casey L. Kilpatrick

Research output: Contribution to journalReview articlepeer-review

286 Scopus citations

Abstract

Proper developmental, neural cell-type-specific, and activity-dependent regulation of GABAergic transmission is essential for virtually all aspects of CNS function. The number of GABAA receptors in the postsynaptic membrane directly controls the efficacy of GABAergic synaptic transmission. Thus, regulated trafficking of GABAA receptors is essential for understanding brain function in both health and disease. Here we summarize recent progress in the understanding of mechanisms that allow dynamic adaptation of cell surface expression and postsynaptic accumulation and function of GABAA receptors. This includes activity-dependent and cell-type-specific changes in subunit gene expression, assembly of subunits into receptors, as well as exocytosis, endocytic recycling, diffusion dynamics, and degradation of GABAA receptors. In particular, we focus on the roles of receptor-interacting proteins, scaffold proteins, synaptic adhesion proteins, and enzymes that regulate the trafficking and function of receptors and associated proteins. In addition, we review neuropeptide signaling pathways that affect neural excitability through changes in GABAAR trafficking.

Original languageEnglish (US)
Pages (from-to)385-409
Number of pages25
JournalNeuron
Volume70
Issue number3
DOIs
StatePublished - May 12 2011

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

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