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A molecular atlas of cell types and zonation in the brain vasculature (plus astrocyte)

Michael Vanlandewijck, Liqun He, Maarja Andaloussi Mae, Johanna Andrae, Koji Ando, Francesca Del Gaudio, Khayrun Nahar, Thibaud Lebouvier, B<c3><a0>rbara Lavina, Leonor Gouveia, Ying Sun, Elisabeth Raschperger, Markus Rasanen, Yvette Zarb, Naoki Mochizuki, Annika Keller, Urban Lendahl, Christer Betsholtz

Cerebrovascular disease is the third most common cause of death in developed countries, but our understanding of the cells that compose the cerebral vasculature is limited. Here, using vascular single-cell transcriptomics, we provide molecular definitions for the principal types of blood vascular and vessel-associated cells in the adult mouse brain. We uncover the transcriptional basis of the gradual phenotypic change (zonation) along the arteriovenous axis and reveal unexpected cell type differences: a seamless continuum for endothelial cells versus a punctuated continuum for mural cells. We also provide insight into pericyte organotypicity and define a population of perivascular fibroblast-like cells that are present on all vessel types except capillaries. Our work illustrates the power of single-cell transcriptomics to decode the higher organizational principles of a tissue and may provide the initial chapter in a molecular encyclopaedia of the mammalian vasculature.

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Species: mouse
Number of cells: 3436
Number of downloads: 4
Study size: 140MB
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Brain 
Cerebrovascular disease