Activity-Dependent Gating of Parvalbumin Interneuron Function by the Perineuronal Net Protein Brevican

作者：Favuzzi Emilia; Marques Smith Andre; Deogracias Ruben; Winterflood Christian M; Sanchez Aguilera Alberto; Mantoan Laura; Maeso Patricia; Fernandes Cathy; Ewers Helge; Rico Beatriz^*

来源：Neuron, 2017, 95(3): 639-+.

DOI：10.1016/j.neuron.2017.06.028

Activity-dependent neuronal plasticity is a fundamental mechanism through which the nervous system adapts to sensory experience. Several lines of evidence suggest that parvalbumin (PV+) interneurons are essential in this process, but the molecular mechanisms underlying the influence of experience on interneuron plasticity remain poorly understood. Perineuronal nets (PNNs) enwrapping PV+ cells are long-standing candidates for playing such a role, yet their precise contribution has remained elusive. We show that the PNN protein Brevican is a critical regulator of interneuron plasticity. We find that Brevican simultaneously controls cellular and synaptic forms of plasticity in PV+ cells by regulating the localization of potassium channels and AMPA receptors, respectively. By modulating Brevican levels, experience introduces precise molecular and cellular modifications in PV+ cells that are required for learning and memory. These findings uncover a molecular program through which a PNN protein facilitates appropriate behavioral responses to experience by dynamically gating PV+ interneuron function.

• 出版日期2017-8-2