In the presence of anti-tumor monoclonal antibody (mAb), human monocytes cultured with macrophage colony-stimulating factor (M-CSF, also referred as CSF-1) phagocytose melanoma and neuroblastoma tumor cells, a process known as ‘antibody-dependent cellular cytotoxicity’ (ADCC) [28]. Here, CSF1 is linked to neuroblastoma.