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Nat Neurosci. 2011 Oct 26;14(11):1382-9. doi: 10.1038/nn.2963.

Perivascular instruction of cell genesis and fate in the adult brain.

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Department of Neurology and the Center for Translational Neuromedicine, University of Rochester Medical School, Rochester, New York, USA.


The perivascular niche for neurogenesis was first reported as the co-association of newly generated neurons and their progenitors with both dividing and mitotically quiescent endothelial cells in restricted regions of the brain in adult birds and mammals alike. This review attempts to summarize our present understanding of the interaction of blood vessels with neural stem and progenitor cells, addressing both glial and neuronal progenitor cell interactions in the perivascular niche. We review the molecular interactions that are most critical to the endothelial control of stem and progenitor cell mobilization and differentiation. The focus throughout will be on defining those perivascular ligand-receptor interactions shared among these systems, as well as those that clearly differ as a function of cell type and setting, by which specificity may be achieved in the development of targeted therapeutics.

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