Abstract:The perineuronal net (PNN) is a condensed form of extracellular matrix (ECM) that enwraps specific populations of neurons and regulates plasticity. To create a PNN, only three classes of components are needed: membrane bound hyaluronan by its synthetic enzyme hyaluronan synthases (HASs), a link protein and a CSPG. However, there is redundancy within the classes as multiple HAS isoforms, link proteins and CSPGs have been found in the PNN in vivo. The effect of this heterogeneity has on PNN function is unresolve… Show more
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