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  • Title: 'Perineuronal nets' around cortical interneurons expressing parvalbumin are rich in tenascin.
    Author: Celio MR, Chiquet-Ehrismann R.
    Journal: Neurosci Lett; 1993 Nov 12; 162(1-2):137-40. PubMed ID: 7510052.
    Abstract:
    'Perineuronal nets' are ill-known structures enwrapping the cell bodies and proximal dendrites of certain neurons in the brain. It is as yet unclear if they represent a cytological entity or extracellular material. Using immunohistochemical methods we have detected the presence of the extracellular matrix-protein, tenascin, in the 'perineuronal nets' surrounding certain cortical interneurons. We have also shown that tenascin antibodies label the circumference of parvalbumin-immunoreactive neurons preferentially. We conclude that this classical matrix protein is a major component of 'perineuronal nets'. Therefore, 'perineuronal nets' may represent sites of privileged adhesion between nerve and glial cells.
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