(a) Representative H&E-stained ear sections of untreated and IMQ-treated male and female mice. (b‒e) Scoring of inflammation for each indicated metric was conducted in a blinded fashion by a dermatopathologist. (f) Average of acanthosis (in μm) across the entire ear section. Images are representative of sections from 12‒20 mice per group examined. Bar = 50 μm. *P < 0.05; ** P < 0.01; ***P < 0.001; **** P < 0.0001. IMQ, imiquimod; KO, knockout; TG, transgenic; Tx, treatment; WT, wild type.