%J Neuron
%K Parvalbumin interneurons, inhibitory circuitries, perineuronal netssynapse maturation, AMPA receptors, Kv channels, learning and memory, plasticity, activity-dependent
%L discovery10044837
%I CELL PRESS
%O This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
%X 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.
%N 3
%T Activity-Dependent Gating of Parvalbumin Interneuron Function by the Perineuronal Net Protein Brevican
%A E Favuzzi
%A A Marques-Smith
%A R Deogracias
%A CM Winterflood
%A A Sanchez-Aguilera
%A L Mantoan
%A P Maeso
%A C Fernandes
%A H Ewers
%A B Rico
%V 95
%D 2017
%P 639-655