Cathepsin S drives keratinocyte IL-8/ICAM-1-mediated neutrophilic inflammation in generalized pustular psoriasis and induces a pustular psoriasis-like phenotype in mice.
BACKGROUND Generalized pustular psoriasis (GPP) is a severe autoinflammatory dermatosis driven by excessive IL-1/IL-36-neutrophil activation, with high disease burden and limited therapeutic options. The mechanisms underlying dysregulated neutrophil recruitment remain incompletely understood, and the lack of mechanisti...