CXCL5 is secreted by cells stimulated by the inflammatory cytokines IL‐1 or TNF‐α, whereas many immune cells (e.g., macrophages,258 eosinophils259) and nonimmune cells (e.g., mesothelial cells260 and cancer‐associated fibroblasts261) are also capable of expressing CXCL5. This evidence concerns the gene TNF and cancer.