This study included both pro‐inflammatory (IL‐1B, IL‐6, IL‐8, IL‐12 (p40, p70), TNF‐α, and IFN‐γ), and anti‐inflammatory (IL‐4, IL‐6, IL‐10, TGF‐β), peripheral cytokine blood serum markers with no significant findings evident between cancer survivors and matched controls. The gene discussed is IL4; the disease is cancer.