IGF1 and cancer: Insulin‐like growth factors (IGFs) have a key role in normal growth and development,8 whereas their deregulation is associated with many diseases, including cancer, diabetes, atherosclerosis and neurodegeneration.24 IGF‐I mediates many, but not all, of the growth factor actions, while both IGF‐I and IGF‐II stimulate proliferation, survival and migration of several cell types.