Figure 1.
Primitive and definitive hematopoietic development. (A) Distinct anatomical regions of primitive and definitive hematopoietic development in both the mouse and human. (B) Subset of cell surface markers used in the characterization of this developmental process. CD309, vascular endothelial growth factor receptor 2; CD202b, Tie2 or angiopoietin receptor 2; CD41, integrin 2 alpha; CD45, leukocyte common antigen.