Identification of a developmentally regulated keratan sulfate proteoglycan that inhibits cell adhesion and neurite outgrowth - PubMed (original) (raw)
Identification of a developmentally regulated keratan sulfate proteoglycan that inhibits cell adhesion and neurite outgrowth
G J Cole et al. Neuron. 1991 Dec.
Abstract
Monoclonal antibodies have been used to identify a 320 kd keratan sulfate proteoglycan that is primarily expressed in the embryonic chick nervous system. Immunohistochemical localization of the proteoglycan shows that it is expressed by putative midline barrier structures in the developing chick central nervous system. When added to laminin or neural cell adhesion molecule that has been adsorbed onto nitrocellulose-coated dishes, the proteoglycan abolishes cell attachment and neurite outgrowth on these adhesive substrata. This effect can be reversed by keratanase treatment and incubation with a monoclonal antibody that recognizes the keratan sulfate chains of the proteoglycan. These data suggest that this neural keratan sulfate proteoglycan plays an important role in the modulation of neuronal cell adhesion during embryonic brain development.
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