The latter involves the use of immune molecules such as monoclonal antibodies, cytokines (TNF, IL-2, IFNs, granulocyte-macrophage colony-stimulating factor (GM-CSF), granulocyte colony-stimulating factor (G-CSF), etc.), DNA polymerase methylation inhibitors, cancer suppressor gene products, stem cells, and bone marrow transplantation, among others [36]. Here, TNF is linked to cancer.