Description : Many polypeptide mitogens, such as basic fibroblast growth factor (FGFB; 134920) and
platelet-derived growth factors (173430, 190040), are active on a wide range of different
cell types. In contrast, vascular endothelial growth factor is a mitogen primarily
for vascular endothelial cells. It is, however, structurally related to platelet-derived
growth factor.;