LAMB2 and ischemic stroke: In the peri‐infarct area, vascular remodeling contributes to the neuronal survival after ischemic stroke.[40, 41] Angiogenesis is likely also important for the transplanted cells.[20] By immunostaining for laminin, a membrane protein accumulated in blood vessels, we found that blood vessels penetrated into the grafts at 30‐day post transplantation (Figure 3h).