WNT7A and Stroke: It is also noteworthy that, even in comparison to other cell types, OPCs in cluster 4 represent a significant source of Vegfa at 3 days after tMCAO (Figure S1E), alongside astrocytes and fibroblasts, and are the primary source of Wnt7a at 3 days after tMCAO (Figure S1F), both of which are key factors in post-stroke angiogenesis (Hu et al., 2024).