ANGPTL6 and psoriasis: Immunohistochemical analysis of tissue specimens with ANGPTL6 antibody revealed abundant or moderate ANGPTL6 protein in the epidermal layer of 13 of 15 tissue specimens from different patients, whereas no ANGPTL6 protein was detected in all 10 non-psoriasis control specimens (Fig. 4a,c and Supplementary Fig. S5a,c).