Most cancers evade immune supervision by impairing the functions of immune cells, such as tumor associated neutrophils, regulatory T cells, marrow‐derived suppressor cells, tumor‐associated macrophages and/or by releasing inhibitory cytokines, such as GM‐CSF, VEGF, IL‐1β and chemokines.16, 39, 40, 41. This evidence concerns the gene IL1B and cancer.