Patients with some types of solid cancer (breast, prostate, head and neck, gastric, pancreatic, sarcomas), present increased levels of pro-inflammatory cytokines such as interleukin 1, interleukin 6, tumor necrosis factor α, which are associated to systemic effects, such as cachexia, pain, toxicity and resistance of treatment [33, 34]. Here, IL6 is linked to sarcoma.