Abnormalities of human genetic apparatus manifested in leukocyte proteins in psoriasis.

The content of 53K/H2A and 43K/H2A proteins in leukocytes of patients with psoriasis, newborns, and healthy donors was studied. In all patients one or both parameters differed from normal. Mean values and distribution of 53K/H2A in healthy siblings of psoriatic proband significantly differed from those in newborns and donors. It was concluded that 53K/H2A is a marker of pathological changes in the genome responsible for predisposition to psoriasis. This marker can be revealed in peripheral blood leukocytes before skin manifestations of the disease.