Figure 10. Schematic representation of the signaling network between IGF-IR, GPER and DDR1 activated by IGF-I.
IGF-I stimulates the expression of GPER and its target genes, then IGF-IR and GPER trigger the IGF-I regulation of DDR1 target genes. The functional cross-talk of IGF-IR, GPER and DDR1 contributes to the chemotaxis and migration observed in cancer cells.