alexa The role of polysialic acid in migration of olfactory bulb interneuron precursors in the subventricular zone.
Molecular Biology

Molecular Biology

Journal of Cell Science & Therapy

Author(s): Hu H, Tomasiewicz H, Magnuson T, Rutishauser U

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Abstract Transplantation studies have been used to show that tangential migration of olfactory bulb interneuron precursors is retarded in NCAM-mutant mice, and that this defect reflects loss of NCAM polysialic acid (PSA). In contrast, radial migration of cells within the bulb did not require PSA. Reciprocal transplantations between wild-type and mutant mice have revealed that the mutation affects the in vivo migration environment in the subventricular zone, and not movement of individual cells. However, in vitro migration of the cells into a PSA-negative collagen matrix environment was also PSA dependent. The surprisingly similar results obtained in the in vivo and in vitro environments is consistent with the observation that migration of subventricular cells occurs as streams of closely apposed cells in which the PSA-positive cells appear to serve as their own migration substrate.
This article was published in Neuron and referenced in Journal of Cell Science & Therapy

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