The Inflammatory Caspases-1 and -11 Mediate the Pathogenesis of Dermatitis in Sharpin-Deficient Mice

The study from 2015 explored the contribution of inflammatory caspases-1 and -11 to the development of dermatitis in Sharpin-deficient mice, which are used to model human skin conditions like atopic dermatitis and psoriasis. The researchers discovered that these caspases, along with IL-1 family cytokines, were significantly increased in the skin of these mice before visible signs of the disease appeared. By genetically removing caspase-1 and -11, they noted a substantial decrease in skin inflammation and a delay in the onset of the disease, although other systemic immune issues remained. The findings indicate that inflammasome signaling, especially through caspases-1 and -11, is crucial in the early stages of skin disease and may precede cell death pathways in inflammatory conditions. This research offers new understanding of the relationship between inflammasome signaling and cell death in inflammatory skin diseases. The exact number of mice used in the study was not mentioned in the summary provided.