Netrins and Their Roles in Placental Angiogenesis

Figure 3

Immunohistochemical localization of netrin-1 (a), netrin-4 (b), UNC5B (c), and neogenin (d) in human first trimester placenta. EC: endothelial cells; Syn: syncytiotrophoblast; VCT: villous cytotrophoblasts.

(a)

(b)

(c)

(d)