Casting a wide net: role of perineuronal nets in neural plasticity

BA Sorg, S Berretta, JM Blacktop… - Journal of …, 2016 - Soc Neuroscience
BA Sorg, S Berretta, JM Blacktop, JW Fawcett, H Kitagawa, JCF Kwok, M Miquel
Journal of Neuroscience, 2016Soc Neuroscience
Perineuronal nets (PNNs) are unique extracellular matrix structures that wrap around certain
neurons in the CNS during development and control plasticity in the adult CNS. They appear
to contribute to a wide range of diseases/disorders of the brain, are involved in recovery from
spinal cord injury, and are altered during aging, learning and memory, and after exposure to
drugs of abuse. Here the focus is on how a major component of PNNs, chondroitin sulfate
proteoglycans, control plasticity, and on the role of PNNs in memory in normal aging, in a …
Perineuronal nets (PNNs) are unique extracellular matrix structures that wrap around certain neurons in the CNS during development and control plasticity in the adult CNS. They appear to contribute to a wide range of diseases/disorders of the brain, are involved in recovery from spinal cord injury, and are altered during aging, learning and memory, and after exposure to drugs of abuse. Here the focus is on how a major component of PNNs, chondroitin sulfate proteoglycans, control plasticity, and on the role of PNNs in memory in normal aging, in a tauopathy model of Alzheimer9s disease, and in drug addiction. Also discussed is how altered extracellular matrix/PNN formation during development may produce synaptic pathology associated with schizophrenia, bipolar disorder, major depression, and autism spectrum disorders. Understanding the molecular underpinnings of how PNNs are altered in normal physiology and disease will offer insights into new treatment approaches for these diseases.
Soc Neuroscience