Extracts of psoriatic scale were compared to extracts of nonpsoriatic exfoliative scale, plantar callus, normal epidermis, and to human serum by double diffusion in gel. Preliminary studies using agar electrophoresis and immunoelectrophoresis were also reported. Antigens identical to some of those in serum were present in all the extracts of exfoliative scale. An antigen was demonstrated in psoriatic scale which was not apparent in plantar callus or normal epidermis.
FORSEY RR, HABERMAN HF, LANGMAN J. Water Soluble Antigens of Psoriatic Scale. Arch Dermatol. 1965;91(5):512–518. doi:10.1001/archderm.1965.01600110098019
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