For example, imbalanced production of interleukin 6 (IL-6), vascular endothelial growth factor (VEGF), or macrophage colony-stimulating factor (M-CSF) inhibit adaptive anti-tumor immunity by suppressing dendritic cell maturation and activating regulatory T cells (Treg) to aid tumor cells in evading immune-surveillance (Zou, 2005). The gene discussed is IL6; the disease is neoplasm.