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  • Title: T-cell subpopulations in the blood and skin of patients with psoriasis.
    Author: Baker BS, Swain AF, Valdimarsson H, Fry L.
    Journal: Br J Dermatol; 1984 Jan; 110(1):37-44. PubMed ID: 6229268.
    Abstract:
    Monoclonal antibodies were used to determine, simultaneously, the proportions of T-cell populations in the peripheral blood and in the skin lesions of fifty-one patients with psoriasis. The results were analysed in relation to the extent, age and clinical type of the skin lesions. In the group of patients with extensive lesions, a significant reduction in the number of total T (TT) and T helper/inducer-cells, (TH), but not in T suppressor/cytotoxic cells (TS) was observed in the peripheral blood. Furthermore, the skin TH/TS ratio was greater in late guttate and in chronic plaque lesions than the corresponding ratio in the blood. These findings suggest that there is an active selective recruitment of TH cells into established psoriatic lesions. In contrast, the TH/TS ratio in early guttate lesions was the same as in the blood, and significantly lower than in the plaque lesions. An additional finding was a decrease of TS, and a corresponding increase of null cells in the blood of patients with chronic plaque psoriasis. These observations provide further evidence for the participation of T cells in the pathogenesis of psoriasis.
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