Psoriasis Plays a Wild CARD

Rare autosomal mutations in CARD14 have previously been linked to psoriasis susceptibility in humans, but their pathogenic role had not been shown. Mellett et al. generated mice harboring the patient-derived gain-of-function Card14DE138 mutation and showed that hyperactivation of CARD14 alone is sufficient to induce immunopathogenic mechanisms that are responsible for psoriasis, which is driven by the IL-17/IL-23 axis.