CSF2 and neoplasm: In addition to loading tumor associated antigens (TAA), other tumor modulating agents such as granulocyte macrophage colony stimulating factor (GM-CSF) and toll like receptor (TLR) agonists (Bacillus Calmette-Guérin [BCG] and CpG) were either used as adjuvants or engineered to enhance antigen presentation by APCs [26,27].