alexa Network of tangential pathways for neuronal migration in adult mammalian brain.
Molecular Biology

Molecular Biology

Journal of Cell Science & Therapy

Author(s): Doetsch F, AlvarezBuylla A

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Abstract Cells in the brains of adult mammals continue to proliferate in the subventricular zone (SVZ) throughout the lateral wall of the lateral ventricle. Here we show, using whole mount dissections of this wall from adult mice, that the SVZ is organized as an extensive network of chains of neuronal precursors. These chains are immunopositive to the polysialylated form of NCAM, a molecule present at sites of plasticity, and TuJ1, an early neuronal marker. The majority of the chains are oriented along the rostrocaudal axis and many join the rostral migratory stream that terminates in the olfactory bulb. Using focal microinjections of DII and transplantation of SVZ cells carrying a neuron-specific reporter gene, we demonstrate that cells originating at different rostrocaudal levels of the SVZ migrate rostrally and reach the olfactory bulb where they differentiate into neurons. Our results reveal an extensive network of pathways for the tangential chain migration of neuronal precursors throughout the lateral wall of the lateral ventricle in the adult mammalian brain.
This article was published in Proc Natl Acad Sci U S A and referenced in Journal of Cell Science & Therapy

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