observed an association between the levels of 11 cytokines including Fractalkine, granulocyte colony stimulating factor (G‐CSF), fibroblast growth factor 2 (FGF‐2), granulocyte‐macrophage colony‐stimulating factor (GM‐CSF), IFN‐α2, IL‐1a, IL‐1b, IL‐1RA, IL‐2, IL‐12p70 and IL‐13 in the blood and the emergence of irAEs in melanoma patients receiving anti‐PD‐1 treatment. The gene discussed is FGF2; the disease is melanoma.