A recent paper characterized vascular cells across the murine brain (Vanlandewijck et al., 2018), describing twelve vascular cell types. Like Vanlandewijck et al., we observed (Figure 5) distinct endothelial cell types carrying known arterial (e.g., Bmx; VECA) and venous (Slc38a5; VECV) markers, as well as capillary endothelial cells (VECC) expressing Meox1. We found three types of pericytes and a single arterial vascular smooth muscle type (Acta2, Tagln; VSMCA). Based on the proportion of all cells that were vascular, the mid- and hindbrain and spinal cord were the most vascularized (Figure 5C).
