Figure 2From: Roles of Sema4D and Plexin-B1 in tumor progressionSema4D-Plexin-B1 signaling pathways in angiogenesis. Sema4D engages Plexin-B1 to induce angiogenesis and tumor angiogenesis via two independent downstream pathways. Plexin-B2 might also play a redundant role in this aspect.Back to article page