The function of VEGFR - 1 is less well - defined , although it is thought to modulate VEGFR - 2 signaling .
VEGFR - 2 appears to mediate almost all of the known cellular responses to VEGF .
The function of VEGFR - 1 is less well - defined , although VEGF is thought to modulate VEGFR - 2 signaling .
VEGFR - 2 appears to mediate almost all of the known cellular responses to VEGF .