Review Article

In Sickness and in Health: Perineuronal Nets and Synaptic Plasticity in Psychiatric Disorders

Figure 1

PNNs in the human amygdala. (a) PNN labeled with wisteria floribunda agglutinin (WFA) lectin, which binds to N-acetyl-galactosamine on the terminal end of chondroitin sulfate chains. (b) PNN immunolabeled using the mAB antibody 3B3 against native chondroitin sulfate motifs specific for chondroitin-6-sulfate (CS-6). 3B3-immunolabeled PNNs are more numerous and show a much broader distribution in the human amygdala with respect to those labeled with WFA. (c) PNN immunolabeled with mAB antibody 1B5, raised against nonsulfated chondroitin sulfate (CS-0) (3B3 and 1B5 are a generous gift from Dr. Bruce Caterson, University of Cardiff, UK). Scale bar = 50 μm.
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