Expression of cytokine- and growth factor receptors on melanoma cells.

Score of reactivity of melanoma cells with antibodies: −,aNumber of donors (n) analyzed.bCells were obtained from tumors grown in NSG mice injected with unfractionated patient-derived melanoma cells.Abbreviations: VEGF-R2, vascular endothelial growth factor receptor-2; EPO-R, erythropoietin receptor; IGF-I-R, insulin-like growth factor I receptor; G-CSF-R, granulocyte colony-stimulating factor receptor; GM-CSF-R, granulocyte/macrophage colony-stimulating factor receptor; M-CSF-R, macrophage colony-stimulating factor receptor; SCF, stem cell factor; IL-3-RA, interleukin-3 receptor alpha chain; FLT-3, FMS-like tyrosine kinase 3; n.t., not tested.