Some investigators showed that serum IL‐1β, IL‐6, IL‐8, IL‐10, IL‐17, IL‐22, IL‐23 and TNF‐α play an important role in uveitis, and their function is related to pathologic Th17 cells (Zelazowska‐Rutkowska et al. 2017; Weinstein & Pepple 2018). The gene discussed is TNF; the disease is uveitis.