TNF and psoriasis: With respect to the PASI score, MALT1 could facilitate Th17 cell and γδ T17 cell differentiation, inflammatory cytokine (such as TNF‐α, interleukin [IL]−17A, and IL‐1β) production, and keratinocyte proliferation to eventually lead to psoriasis symptoms, including hyperkeratosis of the epidermal tissue, loss of the granular layer and epidermal microabscesses, contributing to a higher PASI score.14, 15, 16